Shanghai Huabang Industrial Business Network - bridge

[bridge]YD2827A,YD2827B Broadband LCR Digital Bridge

2026-6-16 16:05:47

YD2827A, YD2827B Broadband LCR Digital Bridge

1. 4.3-inch LCD display, more intuitive and clear
2. Output impedance of two different signal sources, 30 �� and 100 ��
3. Built in comparator, ten level sorting and level counting function
4. Internal 100 sets of configuration files, USB flash drive extension for saving or calling multiple sets of test files
5. Instrument software version upgrade and update can be achieved through USB HOST
6. The screen copying function on a USB flash drive makes it easier to save data
7. Supports FAT16 and FAT32 file systems formats
8. Standard RS232C, Handler, USB HOST, optional GPI

model	YD2827A	2827B
test parameters	L��C��R��X��Z��D��Q��
test frequency point	50Hz,60Hz,100Hz,120Hz,1kHz,10kHz,20kHz,30kHz, 40kHz,50kHz,60kHz,80kHz,100kHz,120kHz,150kHz, 200kHz; There are a total of 16 testing frequency points	50Hz,60Hz,80Hz,100Hz,120Hz,150Hz,200 Hz,250 Hz, 300 Hz,400 Hz,500 Hz,600 Hz,800Hz,1kHz,1.2k Hz, 1.5k Hz,2k Hz,2.5k Hz,3k Hz,4k Hz,5k Hz,6k Hz, 8k Hz,10kHz,12k Hz,15k Hz,20kHz,25k Hz,30k Hz, 40kHz,50k Hz,60kHz,80k Hz,100kHz,120k Hz, 150k Hz,200k Hz 37 testing frequency points in total
Test voltage level	1V��0.5V��0.3V��0.25V��0.1V
display range	L:0.01nH-9999.99H C:0.00001pF-9999.99mF D:0.00001-9.99999 Q:0.01-99999.9 ��:-179.999°-179.999° R. X, Z: 0.01m �� -99.9999M ��
Basic accuracy	0.1% (within the basic range)
measure speed	Slow speed 3 times/second, medium speed 11 times/second, fast speed 40 times/second
equivalent circuit	series connection, parallel connection
Reset function	Open circuit, short circuit, point frequency reset
input impedance	30 �� and 100 �� are optional
display mode	Direct reading, file number and file count
Other functions	Internal 100 sets of configuration files External 500 sets of 10 levels sorting function
Power supply and temperature and humidity	198V-240V AC 0 �� -40 �� 20% -80% RH
Dimensions and Weight	240×100×325��mm) 2.5kg

YD2827A, YD2827B Broadband LCR Digital Bridge

[bridge]YD2828A Broadband LCR Digital Bridge

2026-6-16 16:05:39

Performance characteristics of YD2828A wideband LCR digital bridge

Four parameter display, any combination of parameters, up to 12 measurement parameters;
7-inch 16:9 TFT LCD display with a resolution of 800 × 480RGB
0.05% basic measurement accuracy, with a maximum testing speed of 50 times per second
20Hz-1MHz test frequency, resolution 10mHz
Automatic Level Control (ALC) function for testing voltage or current
Four different signal sources with output impedances of 30 ��, 100 ��, 50 ��, and 10/CC
Built in comparator, 10 level sorting and counting function
Graphic scanning analysis function, supports frequency/level/bias scanning, easily helps you dissect device performance
10 point list scanning function,
Internal 0V, 1.5V, 2V DC bias voltage source
2m/4m test cable extension (optional)
Optional ± 10V (± 100mA) and 1A internal DC bias source
Save or call 100 sets of internal settings files, and save or call 500 sets of test files on a USB drive
Instrument software version upgrade and update can be achieved through USB HOST
The USB flash drive supports FAT16 and FAT32 file systems
Standard RS232C, Handler, USB HOST, headphone jack, optional GPIB, LAN jack

Test signal level	Normal: 5mV-2V, 1mV step
Test signal level	Constant level: 10mV-1V, 1mV step
Bias source	Internal: 0V, 1.5V, 2V
display range
\|Z\|, R, X	0.01m�� 99.9999M��
DCR	0.01m�� 99.9999M��
\|Y\|, G, B	0.00001µS ��99.9999S
C	0.00001pF ��9.9999F
L	0.00001µH ��9999.99H
D	0.00001 ��9.9999
Q	0.00001 ��9999.9
��(DEG)	-179.999º ��179.999º
��(RAD)	-3.14159 ��3.14159
Other
Comparator function	Ten levels: (nine levels are qualified, one level is unqualified), and there is also an auxiliary level AUX
memory	10 sets of internal instrument settings for storage/retrieval
interface	Standard RS232C, Handler, USB HOST, headphone jack, optional GPIB, LAN jack
size	W398H129D370
weight	About 9KG

YD2828A Broadband LCR Digital Bridge

[bridge]YB2811/2812 type digital bridge

2026-6-16 16:05:31

YB2811/2812 digital bridge

Functional Features
Automatic measurement of L, C, R, Q, and D parameters
Basic accuracy 0.25%, 8-bit display
Automatic range switching

Project/Model		YB2811/YB2812
ginseng number measure quantity	Parameter measurement	Inductance L, capacitance C, resistance value R
	Secondary parameter measurement	Quality factor Q, loss tangent value D
	display mode	The main parameters L, C, and R are displayed with five digits, while the sub parameters Q and D are displayed with three digits
	Corresponding relationship between main parameters and yield	C-D�� L-Q�� R-Q
	measurement frequency	YB2811��100Hz��1kHz��10kHz�� Error ± 0.02% YB2812��100Hz��120Hz��1kHz�� Error ± 0.02%
	measurement range	parameter	measurement frequency	measurement range
		L	100Hz��120Hz	1��H��9999H
			1kHz	0.1��H��999.9H
			10kH	0.01��H��99.99H
		C	100Hz��120Hz	1pF��1999.99��F
			1kHz	0.1pF��1999.9��F
			10kH	0.01pF��19.999��F
		R	��	0.1m��99.99M��
		Q	��	0.01%��999%
			��	0.01��999
	Test signal level	0.3Vrms ± 10% (unloaded)
	test speed	5 times/second

YB2811/2812 digital bridge

[bridge]ZC2810B type high-precision digital bridge

2026-6-16 16:05:22

ZC2810B high-precision digital bridge is a replacement product for low-frequency component measurement, which applies the latest technology of multiple component measurements, is easy to operate, and has a beautiful appearance. Can meet the needs of production line quality assurance, incoming inspection, and automated production. The RS232C interface can provide users with remote control and statistical analysis of test data.

Performance characteristics of ZC2810B high-precision digital bridge:
·Reasonable combination of simple operation and powerful functions
·4 typical testing frequencies
·Four typical test signal levels of 0.1V, 0.3V, and 1.0V
·30 �� and 100 �� output impedances
·Four level sorting and Handler interface
·Optional RS-232C communication interface
·Optional RS232C operating software

Measurement function
test parameters	L/Q��C/D��R/Q��\|Z\|-Q
Basic accuracy	0.10%
equivalent circuit	Series connection and parallel connection
Range method	Automatic, hold
Trigger method	Internal, manual, external
test speed	Fast: 15 times/second Slow speed: 4.5 times/second
Correction function	Open circuit, short circuit, sweep frequency reset
display mode	Direct reading, absolute value deviation, relative value deviation
monitor	Dual 5-digit LED display
Measurement signal
Measure signal frequency	100Hz��120Hz�� 1kHz�� 10kHz��
Measure signal level	0.1Vrms��0.3Vrms��1.0Vrms
output resistance	30 ��, 100 ��
Measurement display range
\|Z\|��R	0.0001��99.999M��
C	0.01pF��99999��F
L	0.01��H��99999H
D	0.0001��9.9999
Q	0.0001��9999.9
��%	-999.99%��999.99%
Comparator and interface
comparator	Four level sorting, P1 level sound, or two level sorting, qualified sound
interface	RS232C,Handler

[bridge]ZC2810D series LCR digital bridge

2026-6-16 16:05:14

The ZC2810D series LCR digital bridge is a replacement product for low-frequency component measuring instruments, which applies the latest technology for measuring multiple components, large character dedicated LCD display, SMD surface mount technology, easy operation, and beautiful appearance. It can directly measure up to six combinations of component parameters, meeting the needs of production line quality assurance, incoming inspection, and automated production. The RS-232 interface can provide users with remote control and statistical analysis of test data. The Handler interface can be connected to an automatic component sorting system.

ZC2810D series LCR digital bridge measurement function
test parameters	Six combinations of measurement parameters: C/D, L/Q, R/Q, Z/��, C/R, L/R
Basic accuracy	0.1%
equivalent circuit	Series connection and parallel connection
Range method	Automatic, hold
Trigger method	Internal, manual, external
test speed	Fast: 12 times/second Medium speed: 5 times/second Slow speed: 2 times/second
Correction function	Open circuit, short circuit, sweep frequency reset
display mode	Direct reading/��/��%
monitor	5-digit resolution, with backlit dedicated LCD display screen
Measurement signal
Measure signal frequency	100Hz��120Hz�� 1kHz�� 10kHz��
Measure signal level	0.1Vrms��0.3Vrms��1.0Vrms
output resistance	30 ��, 100 ��
Measurement display range
\|Z\|��R��X	0.001��99.999M��
C	0.01pF��99999��F
L	0.01��H��99999H
D	0.0001��9.9999
Q	0.0001��9999.9
��%	-99.99%��99.99%
Comparator and interface
comparator	Five level sorting, three levels qualified, one level unqualified, and one auxiliary level
interface	RS232C (standard), Handler (optional)
volume	320mm×140mm×360mm
weight	��2.5kg

[bridge]ZC2811D series LCR digital bridge

2026-6-16 16:05:05

The ZC2811D series LCR digital bridge is a replacement product of our company's newly developed low-frequency component measuring instrument. It applies the latest technology for measuring multiple components, with a large character dedicated LCD display and SMD surface mount technology. It is easy to operate and has a beautiful appearance. It can directly measure up to six combinations of component parameters, meeting the needs of production line quality assurance, incoming inspection, and automated production. The RS-232 interface can provide users with remote control and statistical analysis of test data. The Handler interface can be connected to an automatic component sorting system.

ZC2811D series LCR digital bridge performance characteristics:

·Reasonable combination of simple operation and powerful functions
·The use of SMT surface mount technology has improved the reliability of the instrument
·Large dedicated white backlit LCD display screen
·100Hz~100kHz, 4 typical test frequencies
·Three typical test levels: 0.1V, 0.3V, and 1.0V
·Two optional source impedances of 30 ��/100 �� are available for testing consistency compatibility with different LCR meters

Measurement function
test parameters	Six combinations of measurement parameters: C/D, L/Q, R/Q, Z/��, C/R, L/R
Basic accuracy	0.2%
equivalent circuit	Series connection and parallel connection
Range method	Automatic, hold
Trigger method	internal
test speed	Fast: 12 times/second Medium speed: 5 times/second Slow speed: 2 times/second
Correction function	Open circuit, short circuit, sweep frequency reset
display mode	direct reading
monitor	5-digit resolution, with backlit dedicated LCD display screen
Measurement signal
Measure signal frequency	100Hz��120Hz�� 1kHz�� 10kHz��
Measure signal level	0.1Vrms��0.3Vrms��1.0Vrms
output resistance	30 ��, 100 ��
Measurement display range
\|Z\|��R��X	0.001��99.999M��
C	0.01pF��99999��F
L	0.01��H��99999H
D	0.0001��9.9999
Q	0.0001��9999.9
��%	-99.99%��99.99%
Comparator and interface
comparator	-----
interface	-----
volume	320mm×140mm×360mm
weight	��2.5kg

[bridge]LCR type digital bridge

2026-6-16 16:04:57

ZC2812C LCR digital bridge is a high-precision universal instrument for measuring inductance, capacitance, and resistance. This instrument adopts a five terminal measurement method, with both primary and secondary parameters displayed simultaneously, providing direct functionality and easy operation. This instrument can meet the general requirements of production line quality assurance, incoming inspection, and electronic maintenance industry for component testing with a lower budget.

Performance indicators of ZC2812C LCR digital bridge:
·General low-priced LCR bridge
·Equipped with all standard testing functions
·Short circuit, open circuit reset
·Easy to operate and stable performance
·Good testing stability

model	ZC2812C
test parameters	L/Q��C/D��R/Q
test frequency	100Hz��120kHz 1kHz
Test voltage level	0.3V
equivalent circuit	Series connection and parallel connection
Range method	Automatic, hold
Basic accuracy	0.25%
test speed	5 times/second
Reset function	Open circuit, short circuit
test end	5 ends
display mode	direct reading
Overall dimensions	350mm×120mm×340mm
Measurement display range
R	0.001��99.99M��
C	0.1pF��9999��F
L	0.1��H��9999H

[bridge]ZC2816B type precision LCR digital bridge

2026-6-16 16:04:48

The ZC2816B precision LCR digital bridge is a new generation of component parameter testing instrument that utilizes the latest testing technology in this field. Powerful testing capabilities and superior measurement performance, combined with a low price, will provide customers with a great value for their enjoyment. This product can provide stable 6-digit testing resolution, frequency range of 50Hz-200kHz, programmable signal level of 0.01V-2.0V, measurement speed of up to 30 times per second, 9-level fine range, constant 30 �� or 100 �� source internal resistance, and flexible and user-friendly operation mode, which can meet the requirements of production line quality assurance, incoming inspection, and laboratory high-precision measurement. The HANDLER, GPIB, and RS232C interfaces provided by this product create favorable conditions for the instrument to be used in component automatic sorting systems for communication with computers and recording of testing processes.

ZC2816B Precision LCR Digital Bridge 1 Performance Characteristics:

·240 × 128 dot matrix graphic LCD display
·Humanized operation interface, easy to operate
·Extremely high measurement stability and accuracy
·RS-232C, GPIB interface (optional)
·ZC2816B: 50Hz-200KHz, a total of 37 typical test frequencies
·10mVrms-2.0Vrms Programmable Test Level
·30 ��/100 �� optional signal source output impedance
·The fastest and fastest can reach 32ms/time
·Built in comparator, 11 level sorting and counting
·12 sets of internal instrument settings and storage
·Six digit reading resolution
·Accurate load calibration function
·Test the level monitoring function
·Keyboard lock function
·Handler interface

ZC2816B precision LCR digital bridge specifications:

Working temperature and humidity		0�桫40��, ��90%RH
Power requirements	voltage	93V��242V
	frequency	47.5Hz��63Hz
power consumption		��50VA
volume		320mm×140mm×400mm

Measurement function
test parameters	Z ��C��L��X��B��R��G��D��Q��
Basic accuracy	0.10%
equivalent circuit	Series connection and parallel connection
Mathematical functions	Absolute value deviation, percentage deviation
Range method	Automatic, hold
Trigger method	Internal, manual, external, bus
test speed	Fast: 32ms Medium speed: 90ms Slow speed: 650ms
Correction function	Open circuit, short circuit, load correction
Test end configuration	5 ends
average frequency	1-255 (ZC2816B none)
display mode	Direct reading ��ABS��%��V/I (Voltage/current monitoring), file number counting
monitor
Measurement signal
Measure signal frequency	50Hz-200kHz�� 37 points in total 50Hz��60Hz��80Hz��100Hz�� 120Hz��150Hz��200Hz��250Hz�� 300Hz��400Hz��500Hz��600Hz�� 800Hz��1kHz��1.2kHz��1.5kHz�� 2kHz��2.5kHz��3kHz��4kHz�� 5kHz��6kHz��8kHz��10kHz�� 12kHz��15kHz��20kHz��25kHz�� 30kHz��40kHz��50kHz��60kHz�� 80kHz��100kHz��120kHz�� 150kHz��200kHz
Measure signal level	10mVrms��2.00Vrms�� Step by 10mV
Signal output impedance	Choose between 30 �� and 100 ��
Measurement display range
\|Z\|��R��X	0.00001��99.9999M��
C	0.00001pF��999.999mF
L	0.00001��H��9.99999kH
G��B	0.00001��S��999.999S
D	0.00001��9.99999
Q	0.00001��99999.9
��(DEG)	-179.999°��179.999°
��(RAD)	-3.14159��3.14159
��%	-999.999%��999.999%
Comparator and interface
comparator	Grade 11, Grade 9 is qualified, Grade 1 is unqualified. There is also one additional file attached
interface	RS232C, Handler, GPIB (optional)

[bridge]LCR type digital bridge

2026-6-16 16:04:40

ZC2817, ZC2817A LCR digital bridge is a high-precision and wide testing range impedance measuring instrument that can measure various component parameters such as inductance L, capacitance C, and resistance R.
As a low-priced and high-performance measuring instrument, the TC2817/ZC2817A model maximizes its ability to meet general measurement needs with its unique typical frequency points and measurement levels.
The HANDLER interface and RS232C interface provided by both instruments provide conditions for their use in component automatic sorting systems and communication with computers.

ZC2817, ZC2817A LCR digital bridge performance characteristics:

·240 × 128 dot matrix large graphic LCD display
·Test frequencies ranging from 100Hz to 100kHz, with eight typical test frequency points
·Three test levels: 0.1Vrms, 0.3Vrms, and 1Vrms
·30 ��, 100 �� optional signal source output impedance
·Open circuit, short circuit, load correction function
·Built in comparator, 4-stage sorting and Handler interface
·RS232C interface and PC interface software

ZC2817, ZC2817A LCR digital bridge technical specifications:
Working temperature and humidity: 0 ��~40 ��, �� 90% RH
Power requirements
Voltage 198V~242V
Frequency 47.5Hz~63Hz
Power consumption �� 50VA
Volume 320mm × 140mm × 400mm
Weight approximately 3.5kg

Measurement function
test parameters	L/Q��C/D��R/Q��Z/Q��Z/D
Basic accuracy	0.01%
equivalent circuit	Series connection and parallel connection
Mathematical functions	Absolute value deviation, percentage deviation
Range method	Automatic, hold
Trigger method	Internal, manual, external
test speed	Fast: 20 times/second Medium speed: 5.1 times/second Slow speed: 1.5 times/second
Correction function	Open circuit, short circuit, sweep frequency reset
Test end configuration	5 ends
average frequency	1-99
display mode	Direct reading ��ABS��%
monitor	240 × 128 dot matrix graphic LCD display with 6-digit reading resolution
Measurement signal
Measure signal frequency	100Hz,120Hz,1kHz,10kHz,20kHz, 40kHz,50kHz,100kHz
Measure signal level	0.1V��0.3V��1.0V
Signal output impedance	30��,100��
Measurement display range
\|Z\|��R��X	0.00001��99.9999M��
C	0.00001pF��999.999mF
L	0.00001��H��9.99999kH
G��B	0.00001��S��999.999S
D	0.00001��9.99999
Q	0.00001��99999.9
��(DEG)	-179.999°��179.999°
��(RAD)	-3.14159��3.14159
��%	-999.999%��999.999%
Comparator and interface
comparator	Four level sorting, sound control, and sound status selection
interface	RS232C��HANDLER

[bridge]ZC2817D series LCR digital bridge

2026-6-16 16:04:32

The ZC2817D series LCR digital bridge is a replacement product for low-frequency component measuring instruments, which applies the latest technology of multiple component measurements, large character dedicated LCD display, SMD surface mount technology, easy operation, and beautiful appearance. It can directly measure up to six combinations of component parameters, meeting the needs of production line quality assurance, incoming inspection, and automated production. The RS-232 interface can provide users with remote control and statistical analysis of test data. The Handler interface can be connected to an automatic component sorting system.

ZC2817D series LCR digital bridge performance indicators:

·Reasonable combination of simple operation and powerful functions
·The use of SMT surface mount technology has improved the reliability of the instrument
·Large dedicated white backlit LCD display screen
·100Hz~100kHz, 8 typical test frequencies
·Three typical test levels: 0.1V, 0.3V, and 1.0V
·Two optional source impedances of 30 ��/100 �� are available for testing consistency compatibility with different LCR meters
·Configure RS232 interface and Handler interface

Measurement function
test parameters	Six combinations of measurement parameters: C/D, L/Q, R/Q, Z/��, C/R, L/R
Basic accuracy	0.1%
equivalent circuit	Series connection and parallel connection
Range method	Automatic, hold
Trigger method	Internal, manual, external
test speed	Fast: 16 times/second Medium speed: 8 times/second Slow speed: 2 times/second
Correction function	Open circuit, short circuit, sweep frequency reset
display mode	Direct reading/��/��%
monitor	5-digit resolution, with backlit dedicated LCD display screen
Measurement signal
Measure signal frequency	100Hz��120Hz�� 1kHz�� 10kHz�� 20kHz��40kHz�� 50kHz��100kHz
Measure signal level	0.1Vrms��0.3Vrms��1.0Vrms
output resistance	30 ��, 100 ��
Measurement display range
\|Z\|��R��X	0.0001��99.999M��
C	0.001pF��99999��F
L	0.001��H��99999H
D	0.0001��9.9999
Q	0.0001��9999.9
��%	-99.99%��99.99%
Comparator and interface
comparator	Five level sorting, three levels qualified, one level unqualified, and one auxiliary level
interface	RS232C (standard), Handler (optional)
volume	320mm×140mm×360mm
weight	��2.5kg

[bridge]ZC2818A High frequency precision LCR digital bridge

2026-6-16 16:04:23

ZC2818A high-frequency precision LCR digital bridge is an impedance measuring instrument with high measurement accuracy, wide testing range, and 6-digit testing resolution. It has a testing frequency of up to 300kHz, can be programmed in 0.01Hz steps, and has a signal level of 10mV~2V. It can meet the requirements of production line quality assurance, incoming inspection, and laboratory high-precision measurement. The HANDLER and RS232C interfaces provided by the instrument provide conditions for the instrument to be used in component automatic sorting systems, communicate with computers, and record testing processes.
Due to the absence of ideal inductors, capacitors, and resistors, in order to accurately evaluate the actual performance of an actual component in a certain frequency band, ZC2818A, with its signal generation capability of 10mHz resolution, can accurately analyze the frequency response of component parameters in any frequency band, especially for precise measurement of the resonant impedance of low-frequency ceramic resonators with a wide impedance range.

Performance characteristics:
·240 × 128 dot matrix large graphic LCD display
·Test frequency ranging from 20Hz to 300kHz, programmed in 0.01Hz steps at will
·10mVrms~2.0Vrms test level, programmed in 0.01V steps at will
·30 ��, 100 �� optional signal source output impedance
·Open circuit, short circuit, load correction function
·Built in comparator, 10 level sorting and counting functions
·RS232C, Handler interface

General indicators:

Working temperature and humidity		0�桫40��, ��90%RH
Power requirements	voltage	198V��242V
	frequency	47.5Hz��63Hz
power consumption		��50VA
volume		320mm×140mm×400mm
weight		About 3.5kg

Measurement function
test parameters	Z ��C��L��X��B��R��G��D��Q��
Basic accuracy	0.05%
equivalent circuit	Series connection and parallel connection
Mathematical functions	Absolute value deviation, percentage deviation
Range method	Automatic, hold
Trigger method	Internal, manual, external, bus
test speed	Fast: 32ms Medium speed: 90ms Slow speed: 650ms
Correction function	Open circuit, short circuit, load correction
Test end configuration	5 ends
average frequency	1-255
display mode	Direct reading ��ABS��%��V/I (Voltage/current monitoring), file number counting
monitor	240 × 128 dot matrix graphic LCD display with 6-digit reading resolution
Measurement signal
Measure signal frequency	20Hz-300kHz�� Can be set arbitrarily in 0.01Hz steps
Measure signal level	0.01Vrms��2.00Vrms�� Can be set arbitrarily in 0.01V steps
Signal output impedance	Choose between 30 �� and 100 ��
Measurement display range
\|Z\|��R��X	0.00001��99.9999M��
C	0.00001pF��999.999mF
L	0.00001��H��9.99999kH
G��B	0.00001��S��999.999S
D	0.00001��9.99999
Q	0.00001��99999.9
��(DEG)	-179.999°��179.999°
��(RAD)	-3.14159��3.14159
��%	-999.999%��999.999%
Comparator and interface
comparator	Grade 11, Grade 9 is qualified, Grade 1 is unqualified. There is also one additional file attached
interface	RS232C, Handler, GPIB (optional)

[bridge]LCR type digital bridge

2026-6-16 16:04:15

ZC2819 LCR digital bridge is a high-precision and wide testing range impedance measuring instrument that can measure various component parameters such as inductance L, capacitance C, and resistance R. The ZC2819 model has a measurement frequency of 20Hz to 150kHz, a measurement level of 0.01V to 2.55V, and a programmable internal bias voltage of 0-25V, which can meet the measurement requirements of most components, especially the bias voltage required for inductors

The HANDLER interface and RS232C interface provided by the ZC2819 LCR digital bridge provide conditions for the instrument to be used in component automatic sorting systems and to communicate with computers through networking
Performance characteristics:
·240 × 128 dot matrix large graphic LCD display
·Test frequency range of 20Hz to 150kHz, with 3029 test frequency points
·10mVrms~2.55Vrms test level, programmed in any 0.01V step
·Internal bias voltage of 0-25V
·Automatic LCR discrimination function
·Open circuit, short circuit, load correction function
·Built in comparator, 10 level sorting and Handler interface
·RS232C interface and PC interface software
General technical indicators:
Working temperature and humidity: 0 ��~40 ��, �� 90% RH
Power requirements
Voltage: 198V~242V
Frequency: 47.5Hz~63Hz
Power consumption: �� 50VA
Volume: 320mm × 140mm × 400mm
Weight: Approximately 3.5kg

Measurement function
test parameters	Z ��Y��C��L��X��B��R��G��D��Q��
Basic accuracy	0.05%
equivalent circuit	Series, parallel, automatic
Mathematical functions	Absolute value deviation, percentage deviation
Range method	Automatic, hold
Trigger method	Internal, manual, external
test speed	Fast: 11 times/second Medium speed: 4.2 times/second Slow speed: 1.4 times/second
Correction function	Open circuit, short circuit, sweep frequency reset
Test end configuration	5 ends
average frequency	1-255
display mode	Direct reading ��ABS��%��V/I (Voltage/Current Monitoring)
monitor	240 × 128 dot matrix graphic LCD display with 6-digit reading resolution
Measurement signal
Measure signal frequency	20Hz��150kHz, 3000+frequency points
Measure signal level	10mVrms~2.5mVrms 10mV step
Internal bias voltage source	0.1V~25V, 0.1V step
Measurement display range
\|Z\|��R��X	0.00001��99.9999M��
C	0.00001pF��999.999mF
L	0.00001��H��9.99999kH
G��B	0.00001��S��999.999S
D	0.00001��9.99999
Q	0.00001��99999.9
��(DEG)	-179.999°��179.999°
��(RAD)	-3.14159��3.14159
��%	-999.999%��999.999%
Comparator and interface
comparator	10 levels of sorting and counting
interface	RS232C��HANDLER

[bridge]LCR type digital bridge

2026-6-16 16:04:06

ZC2820 LCR digital bridge

model	ZC2820
test parameters	L/Q��C/D��R/Q
test frequency	100Hz��120kHz 1kHz
Test voltage level	0.3V
equivalent circuit	Series connection and parallel connection
Range method	Automatic, hold
Basic accuracy	0.30%
test speed	3 times per second
Reset function	Open circuit, short circuit
test end	5 ends
display mode	Direct reading ��%
Overall dimensions	280mm×120mm×320mm
Measurement display range
R��Z	0.001��99.99M��
C	0.01pF��9999��F
Q	0.0001��9999.9
D	0.0001��9.9999
L	0.01��H��9999H

[bridge]LCR type digital bridge

2026-6-16 16:03:58

The XJ2811C/XJ2812C LCR digital bridge adopts advanced five terminal measurement technology and microprocessor technology, which centrally controls the data acquisition, automatic range conversion, and test data display of the entire system through a microprocessor. It has high integration and reliability, displaying the inductance L, capacitance C, impedance R, loss tangent value D, and quality factor Q parameters of the tested component in digital form, and can choose two testing methods: series equivalent and parallel equivalent. This instrument is widely used in various fields for precise measurement of component parameters by users, and can be used for a long time without the need for special calibration.

Main technical indicators
Test frequency: XJ2811C 100Hz, 1kHz, 10kHz
XJ2812C 100Hz�� 120Hz�� 1kHz
Measuring range:
XJ2811C L�� 0.01��H-9999H
C��0��01pF-9999��F
R��o��001��-99��99M��
Q��0��001-9999
D��0��0001-9��999
XJ2812C L��0��1��FH-9999H
C��0��1pF-9999��F
R��0��001��-99��99M��
Q��0��001-9999
D��0��0001-9��999
Test level: 0.3Vrms
Measurement parameters: L/Q, C/D, R/Q
Measurement accuracy: 0.25%
Measurement speed: 2-8 times/second
Display mode: 5-digit main parameter, 4-digit auxiliary parameter

[bridge]RK2811C digital bridge

2026-6-16 16:03:50

RK2811C digital bridge

measurement parameters		L-Q��C-D��R
test frequency		100Hz��1kHz��10kHz
Test voltage level		0.3Vrms
Test accuracy		0.25%
display range	L	100hHz 1��H��9999H
		1kHz 0.1��H��999.9H
		10kHz 0.01��H��99.99H
	C	100Hz 1pF��9999��F
		1kHz 0.1pF��999.9��F
		10kHz 0.01pF��99.99��F
	R	0.0001��9.999M��
	Q	0.0001��9999
	D	0.0001��9.999
test speed		8 times/second
equivalent circuit		series connection, parallel connection
Range method		Automatic, hold
Calibration function		Open circuit, short circuit reset
test end		5 ends
Other functions		Protect user parameter settings
display mode		direct reading
working environment		0�桫40�棬��85%RH
Power requirements		220V±10%��50Hz±5%
power consumption		��20VA
Overall dimensions		375355140mm
weight		5.81kg

RK2811C digital bridge

[bridge]LCR type digital bridge

2026-6-16 16:03:41

YD2817B-I type LCR digital bridge

Five typical test frequencies can be selected, up to 100kHz
Selection of Three Test Levels
Easy to operate, good reading stability

test parameters	L-Q,C-D,R-Q
test frequency	100Hz,1kHz,10kHz��40kHz��100kHz
Test voltage level	0.1V, 0.3V ��1V
display range	L:0.0001��H-9999.9H C:0.0001pF-99999��F Z/R:0.0001��-99.999M�� D/Q:0.0001-99999
Basic accuracy	0.1% (within the basic range)
test speed	Slow speed 2 times/second, medium speed 5 times/second, fast speed 8 times/second
Reset function	Open circuit, short circuit reset
equivalent circuit	series connection, parallel connection
Other functions	Range locking function, automatic parameter retention function for setting parameters
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
power consumption	��25VA
Overall dimensions	360×110×300��mm)

YD2817B-I type LCR digital bridge

[bridge]QJ24 DC single arm bridge

2026-6-16 16:03:33

The QJ24 DC single arm bridge is extremely convenient for measuring resistors within the range of 1-100M ��. It comes with an internal zero finger and power supply, and the entire measuring mechanism is housed in a metal casing, making it lightweight and portable, suitable for laboratory and field use.

Technical data and specifications of QJ24 DC single arm bridge

1. Total effective range: 1 ��~11.11M ��.
2. Measurement disk: 1000 ��× 10+100 ��× 10+10 ��× 10+1 ��× 10.
3. Range factors: x 0.001, x 0.01, x 0.1, x 1, x 10, x 100, x 1000.
4. Temperature and relative humidity usage range: effective range �� 106 �� is 10 ��~30 ��, 25%~75%. The effective range of �� 106 �� is between 15 �� and 35 ��, and between 25% and 80%.
5. Two 9V6F22 batteries, including an internal power supply, 3V, and (1 #) dry battery, are stacked together to form one battery.
6. Dimensions: 270 × 230 × 140mm3.
7. Weight less than 2Kg

[bridge]QJ49 DC single arm bridge

2026-6-16 16:03:24

QJ49 DC single arm bridge

[bridge]QS37a High voltage capacitor bridge

2026-6-16 16:03:16

QS37a is mainly used to measure the tangent value and capacitance of the dielectric loss angle of high-voltage industrial insulation materials. It adopts the classic circuit of Xilin bridge. It can mainly measure the dielectric loss (tg ��) and capacitance (Cx) of various electrical oils and solid insulation materials such as capacitors, transformers, and transformers under high power frequency voltage. The measurement line adopts the "positive connection method" to measure the insulation of the test sample to the ground. Due to the presence of a 2500KV high-voltage power supply and a high-voltage standard capacitor inside the bridge, and the organic combination of the secondary bridge and ammeter with the high-voltage bridge, this bridge is particularly suitable for measuring the dielectric loss (tg ��) and dielectric constant (��) of various insulating oils and materials.
The bridge itself has a standard capacitor of 5kV/100pF, making it more convenient to measure the dielectric loss of the material.
The bridge body is equipped with a potential tracker and indicator, with few peripheral wiring.
The bridge body adopts diversified dielectric loss measurement lines.

Measurement range and error
When Cn=100pF R4=3183.2 (��) (i.e. 10K/��)

measurement project	measurement range	measurement error
Capacity Cx	40pF--20000pF	±0.5% Cx±2pF
Dielectric loss tg ��	0~1	±1.5��tg��x±1×10^-4

When Cn=100pF R4=318.3 (��) (i.e. 1K/��)

measurement project	measurement range	measurement error
Capacity Cx	4pF--2000pF	±0.5% Cx±2pF
Dielectric loss tg ��	0��0.1	±1.5��tg��x±1×10^-4

Cx��R4×Cn/R3
tg�ģ��·R4·C4
Technical characteristics of high-voltage power supply
Voltage output: 0-2500V/50Hz
High voltage current output: 0-20mA
Built in standard capacitor
The nominal value of capacitance is 100pF
TG �� is less than 5 × 10-5

[bridge]QJ83B DC digital bridge

2026-6-16 16:03:08

Features:
QJ83B DC digital bridge, also known as digital ohmmeter, is used to measure DC resistance and is suitable for measuring the resistance of metal bodies, wires (small motors, small transformers, relays), etc. This measurement has high accuracy, is easy to carry, easy to operate, and has good anti-interference ability. It has manual and automatic range functions, suitable for laboratory and on-site measurements.

Model QJ83B Digital DC (Single Arm) Bridge
Measurement range: 0-20M �� with seven ranges
Minimum resolution of 0.1m ��
Measurement range, resolution test, current accuracy level
2�� 0-1.9999�� 0.1m�� 10mA 0.05%
20�� 0-19.999�� 1m�� 10mA 0.05%
200�� 0-199.99�� 10m�� 10mA 0.05%
2k�� 0-1.9999k�� 100m�� 1mA 0.05%
20k�� 0-19.999k�� 1�� 100��A 0.05%
200k�� 0-199.99k�� 10�� 25��A 0.05%
2M�� 0-1.9999M�� 100�� 2.5��A 0.1%
20M�� 0-19.999M�� 1000�� 0.25��A 0.1%
Display 4 1/2 LED digital tube
Power supply AC 220V 50Hz, power consumption 3W
Dimensions (W) 210 mm × (H) 70 mm × (D) 180 mm
Weight 1kg

[bridge]DQI,DQII Bridge Fixture

2026-6-16 16:02:59

The DQI and DQII bridge fixtures are suitable for measuring the resistance of electrical conductor materials and other conductor materials specified in the "GB3048-94" wire and cable electrical performance test methods and the "GB3048.4-94" wire and cable core resistance test methods, and are compatible with various double arm bridges and digital resistance testers such as QJ57, QJ44, QJ36, QJ19, SB2230, SB2232, etc. It is an essential testing equipment for the wire and cable industry and engineering quality inspection centers, capable of accurately measuring the resistance of wires with various specifications and lengths calibrated to 1 meter.

[bridge]QJ48 Comparison Ceremony Bridge

2026-6-16 16:02:51

The QJ48 comparative bridge is used for the calibration of precision DC resistance instruments such as 0.01% resistance boxes and 0.01% bridges. There is no need to use alternative methods when using this instrument, and since it comes with a standard resistance gauge, there is no need to correct the readings. The accuracy of the instrument is ± 0.002% (no need for correction)

QJ48 compares the main technical performance of ceremonial bridge:
1. Measurement range: 1 �� 100k ��
2. Accuracy: 0.002%
3. Main parameters of each range
Rx (��) accuracy does not exceed (%) guaranteed accuracy temperature range (��) operating temperature range (��) operating relative humidity (��) exceeding the guaranteed accuracy temperature range, instrument accuracy decreases by (%) every 1 ��
105��10 ±0.002 20±0.5 20±5 ��70 ±0.002
10��10-1 ±0.02 20±2 ±0.005
10-1��10-3 ±0.2 20±5
4. Dimensions: 800 × 500 × 200 (mm)
5. Weight: 30kg

Complete set (user customized)
1. AZl9 DC galvanometer
2.0~30V, 200mA or above adjustable voltage regulator or A power supply

[bridge]PC36 series digital DC bridge

2026-6-16 16:02:42

parameter name	model
	PC36A	PC36C	PC36B	PC36D
measurement range	199.99�̦� -199.99��		1.9999m�� -1999.9��
Highest resolution	0.01�̦�		0. 1�̦�
measure current	0.707mA-14.1A		70.7��A-1.41A
Rate current measurement	0.707I��1.00I��1.41I
Bidirectional current measurement	Equipped with a current reversing device for measuring forward and reverse currents
Resistance temperature correction	----	15.0-25.0��	----	15.0-25.0��
display	4 1/2 digit display, word height 35mm, range display, unit display, with backlight
accuracy class	0.04 level, 0.05 level, 0.1 level
power supply	AC 220V �� 1 ± 10% �� 50Hz �� 1 ± 5%)
power consumption	80VA		20VA
Overall dimensions	360×133×400��W×H×D��mm		320×133×280��W×H×D��,mm
Quality (weight)	12 kg		5 kg

PC36 series digital DC bridge

[bridge]SQJ47 Digital DC bridge (capable of measuring inductive resistance such as transformer)

2026-6-16 16:02:34

SQJ47 digital DC bridge (capable of measuring inductive resistance such as transformer)

Digital bridge digital display resistance bridge, 41/2-digit LCD display, for four wire measurement of DC resistance and transformer winding resistance, easy to operate and intuitive to display, is a replacement product of traditional bridge.
Measurement range: 0~1999.9K ��
Minimum resolution 0.001m ��
Basic error: 0-200K ��, ± 0.03%+0.02% full-scale
200K ��~2000K ��, ± 0.12%+0.08% full degree
Maximum measured current: 1A power supply, minimum resolution 0.001m ��

[bridge]QJ18a Temperature measurement double bridge

2026-6-16 16:02:25

Measurement range: 0.001 ��~0.5555600k �� Accuracy: 0.02%

QJ18a temperature measurement double bridge

[bridge]FMQJD Plate type single arm bridge

2026-6-16 16:02:17

Functional and technical indicators:

The FMQJD plate type single arm bridge has an elegant and transparent design, with a length of 1m, a minimum division of 1mm, and a resistance wire of 7 ��.

[bridge]DMQJ3 type unbalanced bridge

2026-6-16 16:02:08

DMQJ3 type unbalanced bridge

Product Description:

connection	measurement range	accuracy	Scale cm^three
Single Bridge	1��~11M��	±0.2%	453114
Twin Bridges	ten^-6~111��	1%	Weight kg
Non-equilibrium bridge	1��~11K��	1%	seven

DMQJ3 type unbalanced bridge

[bridge]FMQJ-1 type dual-purpose unbalanced bridge

2026-6-16 16:02:00

FMQJ-1 dual-purpose unbalanced bridge

1. Balance bridge: 1 ��~11.11M �� Accuracy: ± 0.2%
2. Unbalanced bridge: adjustable fineness<1 ��, can be used as a power bridge; The test signal can be externally output, with a 100% increase in RX; RX decreases by 75%, accuracy: ± 1%

FMQJ-1 dual-purpose unbalanced bridge

[bridge]QJ47 portable DC single double arm bridge

2026-6-16 16:01:52

QJ47 portable DC single double arm bridge

1. Purpose:
The QJ47 portable DC single and double arm bridge is a portable precision DC single and double arm dual-use bridge (hereinafter referred to as single bridge and double bridge), suitable for on-site precision measurement of various metal conductors and various switch contact resistances in industrial and mining enterprises
2,
2.1: Accuracy level: 0.05 level
2.2: Measurement range: 10-3-106 ohms
2.3 The nominal range limits and allowable variations are shown in Table 1

impact quantity	Grade index	Nominal usage limit range			Permitted variation
		effective range ten^-2---10^fiveEurope	effective range ten^five---10^sixEurope	effective range ten^-3---10^-2Europe
ambient temperature	0.05%	Reference value ± 10 ��			100%
	0.2%		Reference value ± 15 ��	Reference value ± 18 ��
relative humidity	All levels	25---80%			20%
power supply voltage	All levels	Rated value+15% ��17%			10%

Note: The nominal range of use for a single bridge is 105____. At 106, an additional power supply of 4.5__ volts is required

2.4 Basic Error Formula: Elim=5 × 10-4 (__RN+X)
In the formula: Allowable error limit of Elim__ (in ohms)
RN____ benchmark value (Euro)
X______ dial indication (Euro)
2.5 Reference conditions and allowable error indication for determining basic error

impact quantity	Reference conditions and tolerances	Single bridge
		effective range	Grade index%
ambient temperature	20±2��	ten^__ten^five	zero point zero five
	20±5��	ten^__ten^five	zero point two
		Double bridge
		Effective range (in ohms)	Grade index%
	20±2��	ten^-2__ten^two	zero point zero five
	20±5��	ten^-3__ten^-23	zero point two
relative humidity	forty^___70%
power supply voltage	Single bridge (internal) 1.5 volts: Double bridge (external) 1.5 volts^__2 volts or 2.5A
	Single bridge effective range 10^5___-ten^sixEuro time, requires 4.5 connections^___6 volts

3. Power supply voltage
3.1 Single bridge: Two 1.5-volt No.1 batteries (internal), single, dual bridge shared
3.2 Dual Bridge: When the S-disk is set to �� 0.1, an external 2-volt power supply or 2.5A cross current source is required. If testing requirements are not high, a 1.5-volt A battery (external) can also be used
3.3 Amplifier Power Supply __9 Stacked Battery Section
4: Under the conditions of 2.3, the insulation strength between the metal components that can be in contact with the circuit and the casing should be able to withstand a frequency of 50 Hz, an actual sine wave AC voltage of 500 volts, and a duration of one minute
Under the conditions of 2.3, the insulation resistance between the metal components that can be in contact with the circuit and the casing is �� 2000 megaohms
6. Usage location:
7 Dimensions: 340 × 240 × 135Mmm
8 Weight:<5 kilograms

[bridge]FMQJ24 DC resistance bridge

2026-6-16 16:01:43

Measurement range: Single arm 1 ��~11.11M �� Minimum step: 1M �� Accuracy: 0.1%

Battery type environmentally friendly, directly using mains electricity, without chemical pollution.

FMQJ24 DC resistance bridge

[bridge]LCR type digital bridge

2026-6-16 16:01:35

YD2811C LCR digital bridge

Point frequency selection
Practical and simple LCR bridge
Simultaneous display of primary and secondary parameters
Clear open circuit and short circuit
Easy to operate, reliable performance

test parameters	L-Q,C-D,R-D
test frequency	100Hz,120Hz,1kHz,10kHz
Test voltage level	0.3V
display range	L:0.01��H-9999H C:0.01pF��99999��F R:0.1M��99.99M�� D:0.0001��9.999 Q:0.001��9999
Basic accuracy	0.3% (within the basic range)
Test internal resistance	30��
measure speed	6 times/second
Other functions	Open circuit, short circuit reset
Working temperature and humidity	0�� -40�� 85%RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
power consumption	�� 30W
Overall dimensions	270×110×290��mm)

YD2811C LCR digital bridge

[bridge]LCR type digital bridge

2026-6-16 16:01:26

High brightness vacuum fluorescent screen VFD display
Six typical test frequencies can be selected
30 �� and 100 �� input impedances
A mid-range bridge with good reading stability and improved performance
Four level sorting, can be equipped with PLC interface

test parameters	L-Q,C-D,R-Q,Z-D
test frequency	50Hz,60Hz,100Hz,120Hz,1kHz,10kHz
Test voltage level	0.1V 0.3V 1V
display range	L:0.0001��H-9999.9H C:0.0001pF-99999��F Z/R:0.0001��-99.999M�� D/Q:0.0001-99999
Basic accuracy	0.1%
test speed	Slow speed 2 times/second, medium speed 6 times/second, fast speed 11 times/second
equivalent circuit	series connection, parallel connection
Range method	Auto hold
Reset function	Open circuit, short circuit reset
display mode	Direct reading, ��%
input impedance	30 ��, 100 �� optional
Sorting function	Four level sorting, qualified sound
interface	PLC interface
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
Overall dimensions	290×110×350��mm)
weight	5kg

YD2810A LCR digital bridge

[bridge]LCR type digital bridge

2026-6-16 16:01:18

30 ��/100 ��, input impedance selection
Three types of test level selection
Easy to operate, good reading stability
Suitable for testing line instruments in component manufacturing plants
First level qualified sorting and primary and secondary parameter unqualified sorting
Can be equipped with RS232C interface and PLC interface

test parameters	L��C��R��Q��D��Z
test frequency	100Hz,120Hz,1kHz,10kHz
Test voltage level	0.1V,0.3V��1.0V
display range	C:0.1pF-10999��F D:0.0000��9999 L:0.1��H��999.9H Q:0.001��9999 R:0.001��39.999M�� Z:0.001��39.999M��
Basic accuracy	0.1% (within the basic range)
measure speed	Slow: 6 times/second, medium: 8 times/second, fast: 20 times/second
Reset function	Open circuit, short circuit sweep frequency reset
Optional internal resistance	30 ��, 100 ��
Other functions	1st level sorting, selection of qualified and unqualified sound, Direct reading, ��% selection range locking function
interface	HANDLE interface, RS232 (optional)
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V frequency: 50Hz ± 5%
power consumption	�� 25VA
Overall dimensions	290×275×110��mm)

YD2810H LCR digital bridge

[bridge]LCR type digital bridge

2026-6-16 16:01:09

YD2810HA type LCR digital bridge

30 ��/100 ��, input impedance selection
Three types of test level selection
Easy to operate, good reading stability
Suitable for testing line instruments in component manufacturing plants
Four level sorting, can be equipped with RS232 interface and PLC interface

test parameters	L-Q,C-D,R-Q,Z-D
test frequency	100Hz,120Hz,1kHz,10kHz
Test voltage level	0.1V 0.3V 1V
display range	L:0.1��H-9999H Z:0.0001��-99.99M�� C:0.1pF-99999��F D:0.0001-9.999 R:0.0001��-99.99M�� Q:0.001-999.9
Basic accuracy	0.1% (within the basic range)
test speed	Slow speed 2 times/second, medium speed 8 times/second, fast speed 20 times/second
calibration method	Sweep frequency open circuit, short circuit
Equivalent method	series connection, parallel connection
Range method	Automatic, locked
display mode	Direct reading, ��%
calibration method	30 ��, 100 ��
Component segmentation	Three level main parameter qualified sorting, one level main and auxiliary parameter unqualified sorting
alarm method	Qualified alarm, unqualified alarm, first, second, and third level main parameter qualified alarm, alarm closed
Instrument interface	PLC interface, RS232C9 (optional)
Power requirements	198V-242V AC,47.5Hz-52.5Hz
Overall dimensions	360×110×300��mm)

YD2810HA type LCR digital bridge

[bridge]YD2817 type wideband LCR digital bridge

2026-6-16 16:01:01

YD2817 Broadband LCR Digital Bridge

240 × 128 large screen LCD dot matrix graphic display
Humanized operation interface, easy to operate
30Hz-200kHz, 39 typical test frequency points in total
30 ��/100 �� optional signal source input impedance
Twelve level sorting and counting, selection of alarm position
Direct reading, file number, keyboard locking function

test parameters	C,L,Q,D,R,X,\|Z\|,G,B,��
test frequency	39 test frequency points from 30Hz to 200kHz
Test voltage level	From 10mV to 1.5V, in steps of 10mV
display range	C:0.00001pF-999999��F D:0.00001-99999.9 L:0.00001��H-9999.9H Q:0.00001-9999.9 \|Z\|,R,X:0.00001��-99.999M�� SB,G:0.0001��S-99.9999S
Basic accuracy	0.05% (within the basic range)
measure speed	Slow speed 2 times/second, medium speed 7 times/second, fast speed 20 times/second
equivalent circuit	series connection, parallel connection
Reset function	Open circuit, short circuit, point frequency reset
input impedance	30 �� \ 100 �� optional
display mode	Direct reading, file number and file count
Other functions	Twelve level sorting, level counting, alarm position selection, average measurement value, parameter protection function setting
interface	PLC interface, RS232C interface (optional)
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
power consumption	��40VA
Overall dimensions	405×140×360��mm)

YD2817 Broadband LCR Digital Bridge

[bridge]YD2817C type precision LCR digital bridge

2026-6-16 16:00:52

High brightness vacuum fluorescent screen VFD display
Eight typical test frequencies can be selected, up to 100kHz
Three test level selections
30 �� and 100 �� input impedances
Set parameter protection function
Four level sorting, PLC interface and operating software

test parameters	L-Q,C-D,R-Q,Z-D
test frequency	50Hz,100Hz,120Hz,1kHz,4kHz,10kHz,40kHz,100kHz
Test voltage level	0.1V,0.3V,1V
display range	L:0.0001��H-9999.9H C:0.0001pF-99999��F Z/R:0.0001��-99.999M��D/Q:0.0001-99999
Basic accuracy	0.1%
test speed	Slow speed 2 times/second, medium speed 6 times/second, fast speed 11 times/second
equivalent circuit	series connection, parallel connection
Range method	Auto hold
Reset function	Open circuit, short circuit reset
display mode	Direct reading, ��%
input impedance	30 ��, 100 �� optional
Sorting function	Four level sorting, qualified sound
interface	PLC interface
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
Overall dimensions	360×110×300��mm)
weight	5kg

YD2817C precision LCR digital bridge

[bridge]YD2816A type wideband LCR digital bridge

2026-6-16 16:00:44

YD2816A wideband LCR digital bridge

Large screen LCD dot matrix graphic display
Humanized operation interface, easy to operate
30Hz-200kHz�� 20000 testing frequency points
12 level sorting, level counting, and selection of alarm positions
9 measurement ranges to ensure high accuracy of measurements
Stability and consistency

test parameters	\|Z\|,\|X\|,C,L,X,B,R,D,Q,G,��
test frequency	20000 test frequency points from 30Hz to 200kHz
Test voltage level	From 10mV to 1.5V, in steps of 10mV
display range	\|Z\|,R,X:0.00001��-99.999M�� L:0.00001��H-9999.99H C:0.00001pF-999999��F B,G:0.00001��S-99.9999S D,Q:0.00001-9999.9 ��:0.00001°-179.999°
Basic accuracy	0.05% (within the basic range)
measure speed	Slow speed 2 times/second, medium speed 7 times/second, fast speed 20 times/second
equivalent circuit	series connection, parallel connection
average frequency	1-99
Reset function	Open circuit, short circuit, point frequency reset
input impedance	30 �� and 100 �� are optional
display mode	Direct reading, file number and file count
Other functions	Twelve level sorting, level counting, alarm position selection, average measurement value, parameter protection function setting
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
power consumption	��40VA
interface	PLC interface, RS232 interface (optional)
Overall dimensions	405×140×360��mm)

YD2816A wideband LCR digital bridge

[bridge]YD2816 type wideband LCR digital bridge

2026-6-16 16:00:35

Humanized operating interface,
Adopting a 320 × 240 LCD display, easy to operate
3023 test frequency points from 20Hz to 150kHz
Advanced Chinese display mode, list scanning test function
Six level sorting, gear counting, and sound selection
0-25V DC internal bias voltage
PLC interface, RS232 interface (optional)

test parameters	\|Z\|,\|Y\|,C,L,X,B,R,D,Q,G,��
test frequency	3023 test frequency points from 20Hz to 150kHz
Test voltage level	From 10mV to 2.55V, in steps of 10mV
display range	\|Z\|,R,X:0.00001��-999.999M�� L:0.00001��H-9999.99H C:0.00001pF-99999��F \|Y\|,B,G:0.00001��S-99.9999S D,Q:0.00001-99999.9 ��:90.0000°-90.0000°
Basic accuracy	0.05% (within the basic range)
measure speed	Slow speed 1.5 times/second, medium speed 4 times/second, fast speed 8 times/second
equivalent circuit	series connection, parallel connection
display mode	Direct reading, ��, ��%, V/I (voltage/current display)
Internal bias voltage	0-25V DC.0.1V step, 25V-100V DC.1V step
Reset function	Open circuit, short circuit, dot frequency, sweep frequency reset
Other functions	Six level sorting, gear counting, alarm position selection, average measurement value, set parameter protection function
interface	PLC interface, RS232C interface (optional)
Working temperature and humidity	0 �� -40 �� 85% RH
Power requirements	198V-242V AC,47.5Hz-52.5Hz
power consumption	��30VA
Overall dimensions	405×140×360��mm)

YD2816 Broadband LCR Digital Bridge

[bridge]YD2817A Precision LCR Digital Bridge

2026-6-16 16:00:27

Features:

LCD screen display, multifunctional menu style buttons
Multi point testing level selection
Protect user parameter settings
Multi frequency display mode
Four level sorting sound
Printing interface, RS232 interface (optional)
Technical parameters:
Measurement parameters: L-Q C-D R-Q Z-Q
Test frequency: 50Hz, 100Hz, 120Hz, 1kHz, 10kHz, 100kHz
Test voltage levels: 0.1V, 0.3V, 1V
Display range: L: 0.00001 �� H-9999H
C��0.0001pF-99.99mF
Z/R��0.0001��-99.99M��
D/Q��0.0001-9999
Basic accuracy: 0.1%
Test speed: Slow speed 2 times/second, medium speed 5 times/second, fast speed 8 times/second
Reset function: open circuit, short circuit reset
Main functions: Four level sorting, range locking, power-off data protection
Interface: Printing interface, RS232 interface (optional)
Dimensions: 360 × 110 × 300 (mm)

[bridge]YD2817B Precision LCR Digital Bridge

2026-6-16 16:00:19

YD2817B Precision LCR Digital Bridge Features:

Five typical test frequencies can be selected, up to 100KHz
Three types of test level selection
Easy to operate, good reading stability
Optional RS232 communication interface
Keyboard lock function
Technical parameters:
Measurement parameters: L-Q C-D R-Q Z-Q
Test frequency: 100Hz, 1kHz, 10kHz, 40kHz, 100kHz
Test voltage levels: 0.1V, 0.3V, 1V
Display range: L: 0.00001 �� H-9999.9H
C��0.0001pF-99999��F
Z/R��0.0001��-99.999M��
D/Q��0.0001-99999
Basic accuracy: 0.1%
Test speed: Slow speed 2 times/second, medium speed 5 times/second, fast speed 8 times/second
Reset function: open circuit, short circuit reset
Main functions: range locking, power down data protection
Interface: Hander interface, RS232 interface (optional)
Dimensions: 360 × 110 × 300 (mm)

[bridge]QS18A Universal bridge

2026-6-16 16:00:10

QS18A Universal Electric Bridge

model	QS18
Measurement range and error of capacitance	1.0PF��110PF ±2.2%	100PF��110��F ±1.1%
Measurement range and error of inductance	1.0��H��11��H ±5.5%	10��H��110��H ±2.2%
Resistance measurement range and error	10M��1.1�� ±5.5%	10��1.1M�� ±5.5%
Measurement range and error of capacitance	100 �� F to 1100 �� F for reference
Measurement range and error of inductance	100��H��1.1H ±1.1%	1H��11H ±2.2%
Resistance measurement range and error	1M��11M�� ±5.5%
Dimensions/Weight (MM/KG)	287W * 180D * 202H / 4

Main purpose and characteristics:

QS18A universal bridge is a portable AC bridge that can measure capacitance, inductance, and resistance components. It is suitable for industrial and mining enterprises, quality inspection, electrical equipment maintenance, university laboratories, etc

[bridge]QS37 High voltage bridge

2026-6-16 16:00:02

QS37 High Voltage Electric Bridge Product Detailed Description:
Impedance measuring instrument QS37 high voltage bridge

Main purpose and characteristics:

model	QS37
measurement range	C_X_��forty_PF��2×10⁴TG��_X��0��1 C_X��40_PF��2×10^threeTG��_X��0��0.1
accuracy	C_X��±0.5 %±2_PF TG��_X��±1.5% TG��±1×10^-4
Dimensions/Weight (MM/KG)	Main bridge	480W * 300D * 150H / 8.5
	Deputy Bridge	480W * 130D * 146H / 5
	Zero finger instrument	480W * 130D * 146H / 5

Measure the capacitance and dielectric loss values of cables, solid and liquid insulation materials.

[bridge]QS1A AC bridge

2026-6-16 15:59:53

One Overview

QS1A AC bridge is an improved version of QS1 AC bridge. This bridge system uses advanced electronic technology and is equipped with an anti-interference circuit of a pointer type zero pointer with photoelectric isolation, enabling the bridge to accurately measure under strong electric field environmental conditions. The bridge also adds an R4/10 device, which can measure small capacitors and small dielectric losses of test samples such as transformer brackets and insulating oil.

technical parameters

working voltage

Cx limit uf

accuracy

TGD limit

accuracy

anti-interference circuit

2-10KV

0.3*10-4��0.4

±5%

0.005-1

0.03-1

0.005-0.03

±10%

±0.003

Output open circuit voltage>400V

Output impedance>1M ��

Phase adjustment 0-360.

Dimensions (mm): 500 * 280 * 290 Weight (kg): 17

principle
The QS1A AC bridge is designed based on the circuit of the Xilin bridge. Arm one is the test sample Cx, arm two is the standard capacitor CN, arm three is the variable resistor R3, and arm four is composed of a fixed resistor R4=1000/pL=3184 ohms connected in parallel with the capacitor box C4. When the bridge is balanced, the following relationship occurs: CX=CN * R4/R3tgd=�� R4C410-6=C4 (in uF)

III Complete set
1. The accessories supplied by each bridge include:
(1) One pair of high-voltage input wires (2) and one power cord
(3) Fuses (0.5A) three (4) bulbs three
2. Complete set can be selected
(1) BR16 standard capacitor, QS1A AC bridge
(2) BR16 standard capacitor, QS1A AC bridge, one set of aluminum alloy installation box.

[bridge]QS1 AC (Xilin) bridge

2026-6-16 15:59:45

I. Overview

QS1 AC bridge, modeled after the Su M-16 product. Commonly known as the Xilin bridge, it is used to measure the insulation loss angle and capacitance of high-voltage equipment at high voltage, and can also be used to measure the capacitance of capacitors, cables, etc. at low voltage.
When measuring high voltage, the bridge can be connected in either forward or reverse direction.

principle
This bridge is designed according to the circuit of the Xilin bridge. Arm one is the test sample Cx, arm two is the standard capacitor CN, arm three is the variable resistor R3, and arm four is composed of a fixed resistor R4=1000/pL=3184 ohms connected in parallel with the capacitor C4. When the bridge is balanced, the following relationship occurs:
CX=CN * R4/R3tgd=�� R4C410-6=C4 (in uF)

Technical parameters of QS1 AC (Xilin) bridge

working voltage

Cx limit uf

accuracy

TGD limit

accuracy

high pressure

5-10KV

high pressure

0.3*10-4��0.4

±5%

0.005-0.6
0.03-0.6
0.005-0.03

±10%
±0.003

low pressure

100V

low pressure

0.3*10-3��100

±5%

0.008-0.6
0.03-0.6
0.008-0.03

±20%
±0.005

Dimensions (mm): 500 * 280 * 290 Weight: 15 (kg)

4�� Completeness
The accessories supplied for each bridge include:
(1) One pair of high-voltage input wires (2) and one power cord
(3) Fuses (0.5A) three (4) bulbs three
2. Selection of complete sets
BR16 standard capacitor, QS1 AC bridge
BR16 standard capacitor, SB854 power phase shifter, QS1 bridge power protection controller, QS1 AC bridge.

[bridge]QJ35A Transformer ratio bridge

2026-6-16 15:59:36

The QJ35A and QJ35B transformer ratio bridges are modified products of the original QJ35 transformer ratio bridge, which can directly measure the transformer ratio and relative error. They not only maintain the advantages and operating methods of the original QJ35, but also eliminate the need for voltage regulators, voltage indicators, and external boosting transformers, simplifying the operating steps, accelerating testing speed, and improving instrument reliability. It is an essential equipment for manufacturing, using, and maintaining units to test various types of power transformers and transformers, including large, medium, and small ones.

model technical indicators			QJ35A	QJ35B
				Medium and small power (L) Middle Small Power	High power low transformation ratio (H) High Power Low Transmit Ratio
K	Measurement range of transformer ratio Transformation Measuring Range		1.020~1111.120	1.020~111.120	1.020~11.120
	Basic error measurement range Threshold Error Range		Elim(K)±0.2%K	Elim(K)±0.2%K
��	Relative error measurement range Relative Error Range		-2%~+2%	-2%~+2%
	basic error Threshold Error		Elim(��)±0.2%��	Elim(��)±0.2%��
V	test voltage Selector	High voltage side input voltage Voltage at high input Voltage side	AC5V~500V	AC5V~550V	AC50V~550V
		Low voltage side input voltage Voltage at low output current side	(When the reading of the x 100 disk is 0) AC5V/K	AC5V	AC50V
			(When the displayed value of the × 100 disk is 1-10) AC5V~0.5V/K

Dimensions: 430 × 140 × 300 (mm) W × H × L
Weight: 8kg

*The volume of QJ35A and QJ35B is half of the original QJ35, and the weight is one-third of the original QJ35, with a beautiful appearance.
*When operating, simply adjust the K value to the expected value, press two buttons, and rotate the slider to directly read the difference (which is also convenient as using the QJ44 bridge).
*Adopting a high-sensitivity AC zero pointer, it has strong anti-interference ability and high testing accuracy.

QJ35B has added the function of testing high-power low transformation ratio transformers. Adapt to the continuous development needs of the power transformer industry.

[bridge]QJ35B Transformer ratio bridge

2026-6-16 15:59:28

model technical indicators			QJ35A	QJ35B
				Medium and small power (L) Middle Small Power	High power low transformation ratio (H) High Power Low Transmit Ratio
K	Measurement range of transformer ratio Transformation Measuring Range		1.020~1111.120	1.020~111.120	1.020~11.120
	Basic error measurement range Threshold Error Range		Elim(K)±0.2%K	Elim(K)±0.2%K
��	Relative error measurement range Relative Error Range		-2%~+2%	-2%~+2%
	basic error Threshold Error		Elim(��)±0.2%��	Elim(��)±0.2%��
V	test voltage Selector	High voltage side input voltage Voltage at high input Voltage side	AC5V~500V	AC5V~550V	AC50V~550V
		Low voltage side input voltage Voltage at low output current side	(When the reading of the x 100 disk is 0) AC5V/K	AC5V	AC50V
			(When the displayed value of the × 100 disk is 1-10) AC5V~0.5V/K

Dimensions: 430 × 140 × 300 (mm) W × H × L
Weight: 8kg
*The volume of QJ35A and QJ35B is half of the original QJ35, and the weight is one-third of the original QJ35, with a beautiful appearance.
*When operating, simply adjust the K value to the expected value, press two buttons, and rotate the slider to directly read the difference (which is also convenient as using the QJ44 bridge).
*Adopting a high-sensitivity AC zero pointer, it has strong anti-interference ability and high testing accuracy.

[bridge]QJ57P DC double arm bridge

2026-6-16 15:59:19

QJ57P DC double arm bridge

model	QJ57P type DC double arm bridge (wide range)
measurement range	0.01µ��1.11110k��
rate	range	resolution	accuracy
×10^-3	0��1.11110 m��	0.01µ��	2%
×10^-2	0��11.1110 m��	0.1µ��	0.2%
×10^-1	0��111.110m��	1µ��	0.05%
×1	0��1.11110��	10µ��	0.05%
×10	0��11.1110��	100µ��	0.05%
×10^two	0��111.110��	1m��	0.05%
×10^three	0��1.11110k��	10m��	0.05%
Bridge power supply	1.5V6 Section 1 1.5V Dry Battery (Parallel)
Zero finger instrument power supply	9V2 6F22 type 9V laminated battery)
Overall dimensions	(W) 320mm×(H) 280mm×(D) 170mm
weight	6kg

The QJ57P type is a portable precision DC bridge with a wide range using Kelvin lines. The product is equipped with a zeroing device and can come with a working power supply. Suitable for precise measurement of DC low resistance in laboratories, workshops, or field workplaces of industrial and mining enterprises and research institutions. It is a designated product in the wire and cable industry regulations.
*The technical parameters of QJ57P DC double arm bridge are the same as QJ57, and it adopts an internationally popular novel shell.
*Measurement of the resistance value of metal rods, sheets, cables, wires, and other metal conductors.
*Inspection of welding quality for current busbars, metal shells, etc.
*Calibration and adjustment of low resistance standards, DC splitters, power type resistors, etc.
*Measurement of switches, electrical appliances, and contact resistance.
*Measurement of DC resistance and temperature rise test for various types of motors and transformer wire groups.

[bridge]QJ42P DC double arm bridge

2026-6-16 15:59:11

details

model	QJ42P type DC resistance bridge
measurement range	5µ��11.000��
rate	range	resolution	accuracy
×10^-4	0.100��1.100 m��	5µ��	5%
×10^-3	1.00��11.00m��	50µ��	5%
×10^-2	10.0��110.0m��	500µ��	2%
×10^-1	0.100��1.100��	5m��	2%
×1	1.00��11.00��	50m��	2%
Bridge power supply	1.5V (6 parallel connected 1.5V dry batteries)
Zero finger instrument power supply	9V (2 6F22 type stacked batteries)
Overall dimensions	(W)230mm×(H)200mm×(D)140mm
weight	2.5kg

QJ42 is a portable DC resistance bridge designed using Kelvin bridge circuit. The product comes with a zero point meter and a battery box that can accommodate a working power supply, suitable for precise measurement of DC low resistance in industrial and mining enterprises, laboratories, and outdoor sites. Such as measuring metal conductivity, DC resistance of motor and transformer windings. Contact resistance of electric brushes and switches, as well as conducting temperature rise tests, etc

[bridge]QJ49E DC single arm bridge

2026-6-16 15:59:03

The QJ49E DC single arm bridge is a portable DC resistance bridge designed using Wheatstone bridge circuit. The instrument is equipped with a built-in zeroing device and a working power supply. Suitable for use in laboratories, workshops, schools, and sites without AC power supply.

QJ49E type
0��1M��
effective range	resolution	accuracy class
0��11.110��	1m��	zero point one
0��111.10��	10m��	zero point one
0��1.1110k��	100m��	zero point zero five
0��11.110k��	1��	zero point zero five
0��111.10k��	10��	zero point zero five
0��1.1110M��	100��	zero point one
��	��	��
4.5V (6 parallel 1.5V 1 dry batteries)
9V (2 6F22 type stacked batteries)
320×280×170��mm�� L×W×H
4.5KG

QJ49E DC single arm bridge

[bridge]QJ83-1A Digital DC Bridge (Portable)

2026-6-16 15:58:54

model	QJ83-1A Digital DC (Single Arm) Bridge (Portable)
measurement range	0-2M �� seven range range
Minimum resolution	100�̦�
range	measurement range	resolution	test current	accuracy class
2��	0-1.9999��	100�̦�	100mA	0.1%
20��	0-19.999��	1m��	100mA	0.05%
200��	0-199.99��	10m��	10mA	0.05%
2k��	0-1.9999k��	100m��	1mA	0.05%
20k��	0-19.999k��	1��	100��A	0.05%
200k��	0-199.99k��	10��	25��A	0.05%
2M��	0-1.9999M��	100��	2.5��A	0.1%
display	4 1/2 LCD display
power supply	DC9V (6 No. 1 1.5V dry batteries)
size	(W)320mm×(H)280mm×(D)170mm
weight	6kg

The basic parameters of QJ83-1A portable digital DC single arm bridge are the same as those of QJ83-1. Powered by batteries and suitable for on-site use. The range is one level smaller than QJ83A (with a minimum resolution of 100 �� starting from 2 ��), which is more suitable for measuring medium and high resistance values. It is a unique digital bridge created by our factory, which is based on the bridge circuit and uses precision alloy wound resistors as the benchmark. It is an updated product of Wheatstone bridge. It has the characteristics of being as simple, fast, and eye-catching as a digital multimeter, while maintaining the accuracy, stability, and reliability of the Wheatstone bridge. It is the best choice for precision measurement of various DC resistances in industrial and mining enterprises, scientific research units, and metrology departments, as it is easy for users to use, does not require zero adjustment, does not need to match standards, and has fast testing.
Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
The reliable main components are imported original and specially selected for aging.

[bridge]QJ84 Digital DC Dual arm Bridge

2026-6-16 15:58:46

QJ84 digital bridge is the best product in the wire and cable industry for testing core wire resistance.
Can replace QJ42, QJ44, and QJ57 DC double arm bridge (Kelvin bridge).
The digital DC bridge series has been awarded the Shanghai High tech Achievement Transformation Project.

model	QJ84 digital DC (double arm) bridge
measurement range	0-20k �� seven range range
Minimum resolution	1�̦�
range	measurement range	resolution	test current	accuracy class
20m��	0-19.999m��	1�̦�	1A	0.5%
200m��	0-199.99m��	10�̦�	1A	0.1%
2��	0-1.9999��	100�̦�	100mA	0.05%
20��	0-19.999��	1m��	100mA	0.05%
200��	0-199.99��	10m��	10m A	0.05%
2k��	0-1.9999k��	100m��	1m A	0.05%
20k��	0-19.999k��	1��	100��A	0.05%
display	4 1/2 LED digital tube
power supply	AC 220V 50Hz power consumption 6W
size	(W)265 mm×(H)110 mm×(D)295mm
weight	2.5kg

The QJ84 digital wide range DC bridge is an upgraded product of our factory, which is based on the bridge circuit and uses precision alloy winding resistors as the reference for the Kelvin bridge. They not only have the same simple, fast, and eye-catching features as digital multimeters. At the same time, it inherits the advantages of accurate, stable, and reliable Kelvin (double arm bridge) bridge. It is an ideal product for precision measurement of various types of DC low value resistors by industrial and mining enterprises, scientific research units, colleges and universities, and metrology departments.
Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
The reliable main components are imported original and specially selected for aging.

[bridge]QJ58 Type Current Comparison Ceremony Temperature Measurement Bridge

2026-6-16 15:58:37

The QJ58 current comparison ritual temperature measuring bridge is a DC comparison bridge with high accuracy, wide measurement range, complete functions, and wide applications. Suitable for verifying high-precision measurement of first and second class platinum resistance thermometers (corresponding resistance ranges from 0.01 ohms to 84 ohms) and germanium resistance thermometers (10 ohms to 10000 ohms). It is the most ideal and practical calibration for current metrology departments, scientific research and production units

Main technical parameters

Measuring range:
Resistance:
100-104 �� accuracy: 1 × 10-6R+10 �� R
10-1~100 �� Accuracy: 1 × 10-5R+10 �� R
10-2~10-1 �� Accuracy: 5 × 10-4R+10 �� R

[bridge]QJ55 Type DC Current Comparison Ceremony Bridge

2026-6-16 15:58:29

QJ55 DC Current Comparison Ceremony Bridge

Description
The QJ55 DC current comparison bridge is a wide range bridge used for comparing and verifying standard resistors, DC resistance boxes, or calibrated decade resistors below 0-106 ��.

Main technical parameters:

1. Accuracy of standard resistance measurement:

Measurement range (��)	ten^-4	ten^-3~10^-1	ten⁰~10^four	ten^five	ten^six
accuracy	2×10^-5	2×10^-6	1×10^-6	2×10^-6	2×10^-5

2. The value calculated by the formula:

measurement range	Error formula	requirement
ten^-4��	±2×10^-6	DC magnetic potential �� 10 ampere turns Voltage drop on the resistor �� 10mV
ten^-2��, 10^-3��	±1×10^-6	DC magnetic potential �� 30 ampere turns Voltage drop on the resistor �� 30mV
ten^-1�� ~10^-4��	\|��\|��K(1×10^-6R+2.5��R)
ten^four��, 10^five��	±2×10^-6	DC magnetic potential �� 1 ampere turn ten^four��, 10^fiveWhen measuring ��, use a high-voltage power supply
1001�� ~10^five��	\|��\|��K(2×10^-6R+2.5��R)

In the formula; |�� | - Instrument error
R - The reading on the measuring disc is generally indicated at '10' to reduce measurement errors
�� R - Minimum step value of the measuring disk
K - Proportional coefficient
3. Usage environment: Temperature: 20 ± 2 ��, relative humidity �� 80%.
4. Power supply voltage: 220V ± 5%; When the power frequency is in the range of 49~50.5Hz, the error of the instrument should comply with the following
1) Low frequency noise �� 1 microampere turn
2) Zero drift �� 20 microamperes per 30 minutes
3) Power supply: AC 220V ± 5%, frequency 50 ± 0.5Hz. If this requirement cannot be met, FY93 AC stabilized power supply should be used.
5. Dimensions: 730 × 550 × 450mm
6. Weight: 85Kg

[bridge]QJ35-1 type transformer ratio bridge

2026-6-16 15:58:20

QJ35-1 type transformer ratio bridge

Description
The QJ35-1 transformer ratio bridge is a resistance divider transformer ratio bridge that can directly read the transformer ratio and transformer error. It has high testing accuracy, wide measurement limit, and easy operation Adopting a high flexibility amplifier with Aa misconnection internal protection device, the working power supply has no phase distinction, and is an improved version of QJ35

Technical performance of QJ35-1 transformer ratio bridge

1. Ensure accuracy under the following conditions:

Environmental temperature 10~30 ��
Relative humidity not exceeding 80%
2. Variable ratio measurement range: 1.02~111.12
3. Error disk range: ± 2%
4. Accuracy:
1.02�QK�Q25 ±0.5%
25500�QK�Q1111.12 ±0.5%
5. Galvanometer power supply: AC220V, 50Hz
6. Measure circuit voltage: AC0-600V; 50Hz
7. Bridge decimal resistor working current: 5~25mA
8. Dimensions: 445 × 320 × 150 (mm)
9. Quality: 8kg

[bridge]QJ31 type DC single double arm bridge

2026-6-16 15:58:12

QJ31 type DC single double arm bridge

Description
QJ31 DC dual-purpose bridge with built-in transistor amplifier, ammeter, and working power supply Suitable for measuring DC resistance in industrial and mining enterprises, laboratory or workshop sites, and outdoor workplaces Used to measure the DC resistance, resistivity of metal conductors, wire resistance, DC shunt resistance, contact resistance of switches and electrical appliances, as well as winding resistance and temperature rise experiments of various motors and transformers within its range.

Main technical indicators

Range magnification		Effective range (��)	Accuracy (%)
Single arm bridge	×10	10-111.1	zero point one
	×100	100-1111
	×1000	1000-11110
	×10000	10000-111100	zero point two
	×100000	100000-1111000	zero point five
double bridge	×0.01	0.0001-0.1111	zero point one
	×0.1	0.001-1.111
	×1	0.01-11.11
	×10	0.1-111.1

1. Measurement range:
Single arm: 10 �� -111000 ��
Arms: 0.1m �� -111.1 ��
2. Accuracy: 0.1%
3. Power supply:
(1) The double arm bridge has a voltage of 1.5V (with an internal power supply of 1.5V and 3 parallel connected 1 dry batteries)
(2) The single arm bridge has a voltage range of 1.5~10.5V (consisting of 1 battery and 2 6F22 type 9V batteries connected in parallel)
(3) The power supply of the transistor amplification zero meter is 9V (2 parallel 6F22 batteries)
4. Dimensions: 300 × 250 × 160 (mm)
5. Mass: Approximately 4.5kg

[bridge]QJ23 type DC resistance bridge

2026-6-16 15:58:03

QJ23 type DC resistance bridge

Description
This instrument adopts a Wheatstone bridge circuit, equipped with a zero finger and a battery box, to measure the DC resistance within its range. Easy to carry and use.

Main technical performance

1. Measurement range: 1 ��~9.999M ��
2. Accuracy: 0.2%
3. Internal zeroing device: Current constant<6 × 10-7 A/mm Damping time:<4s
4. Power supply: 4.5V (3 No. 2 dry batteries)
5. Dimensions: 225 × 175 × 115 (mm)
6. Quality: 2kg

Main parameters of each range

Note: "*" indicates that an external power supply is required to improve the sensitivity of the instrument.

QJ23 type DC resistance bridge

[bridge]RT9608 Type Fully Automatic DC Resistance Calibration Device

2026-6-16 15:57:55

RT9608 Fully Automatic DC Resistance Calibration Device

Description
This verification device adopts a high stability current source, combined with modern computer technology and high-precision digital meter technology, to achieve fully automatic measurement process. Can calibrate resistance boxes of 0.005 level and below, bridges of 0.02 level and below, potentiometers of 0.05 level and below, and standard resistors of 0.01 level and below (with RT9607 extender for less than 1 ��). It is an upgraded product of QJ48 bridge.

Main technical parameters:
1. DC resistance measurement range: 10-3 ��~105 ��
2. Measurement accuracy: 0.001 level
3. DC voltage: Refer to the specifications of the provided 6-and-a-half-digit voltmeter
4. Main features:
1) Large screen TFT true color LCD display.
2) The measurement process is fully automated. Measurement certificates can be prepared according to user requirements
Automatic printing program.
3) Built in a set of PC computers.
4) The device is equipped with six transition standard resistors and external standard resistor interfaces.
5) Can detect electric bridges, potentiometers, standard resistors, and standard batteries.
6) Print verification certificate (optional)

RT9608 main configuration

One Jishili 2000 digital meter (DC voltage basic range accuracy �� 0.002%)
One RT9608 host

The host includes:
*High stability constant current source ranging from 0.1mA to 100mA. Current stability 1-2 × 10-6/(10min):
*6 transition standard resistors (accuracy 0.01%)
*Automatic scanner (# single board controller, # instrument working power supply)
*Resistance box testing software, standard resistance testing software, bridge testing software, potentiometer testing software, internal transition resistance calibration software.
*One PC computer
*One set of connecting wires

[bridge]RT9606 Type Fully Automatic Resistance Calibration Device

2026-6-16 15:57:46

RT9606 Automatic Resistance Calibration Device

Suitable for detecting second-class standard resistors and 0.005 level DC resistance boxes, DC bridges, potentiometers, standard resistors, and standard batteries. External RT9607 current extender (optional), capable of low value standard resistance testing;

Main technical parameters:

1. DC resistance:
Measuring range:	a. 10^-3Euro -10^fiveEurope, resistance box and bridge ten^-3Euro -10^-1Oh, oh, Standard resistor (external current extender) 1 Euro -10^fiveEuro, standard resistor
Measurement accuracy:	a. Verify second-class standard resistors and 0.005 level precision resistor boxes and electrical components Bridge 0.0003%
2. DC voltage: (Refer to KEITHLEY-2182 nanovoltmeter technical specifications)	Measurement range: 1 × 10^-9��1×10^twoV Measurement accuracy: ± (reading ppm+range ppm) Basic range: 1 V (7 ppm+2 ppm) 10 V ��2 ppm +1 ppm��
3. Main features:	1) Large screen TFT true color LCD display. 2) The measurement process is fully automated. Can be customized according to user requirements Automatic printing program for measurement certificates. 3) Built in CDROM and floppy disk drive. 4) Device comes with standard resistors and external standard resistor interfaces

RT9606 Automatic Resistance Calibration Device

[bridge]9600 type multifunctional DC comparator calibration device

2026-6-16 15:57:38

9600 type multifunctional DC comparator calibration device

Description:
The 9600 multifunctional DC comparator calibration device is a DC comparator instrument with high accuracy, wide measurement range, complete functions, and wide applications. Suitable for verifying high-precision potentiometers, standard batteries, standard resistors, DC resistance boxes, DC bridges, and can also be used to measure platinum resistance thermometers and germanium resistance thermometers. It is currently the most ideal and practical calibration device for metrology departments, scientific research and production units.
Main technical parameters
1. Measurement range of this device:
Voltage: ± 0.1111111 to ± 2.1111110V
Potentiometer: ± 0.01111111 to ± 2.1111110V
Resistance: 10-4-106 ��
2. The "potential difference meter" function of this device complies with the requirements of the JJG505-87 National Metrological Verification Regulations. Its basic error:
Minimum step of range error formula
×1 ±1×10-6��Ux+10-1��V 0.1µV
×0.1 ±2×10-6��Ux+2×10-2��V 0.01µV
3. The "bridge" function of this device complies with the requirements of JJG506-87 National Metrological Verification Regulations.

The basic error is shown in the table:

Work Anzhe (AT)	Resistance voltage drop (mV)	Primary lap count (T)	Error formula
Iw �� 20	UR �� 20	Wx �� 100	±1×10-6��Rx+10-1RN��(��)
Iw �� 20	UR �� 20	Wx = 10	±1.4×10-6Rx (��)

The accuracy of measuring standard resistance is shown in the table:

Measurement range (��)	10-4	10-3 10-2 10-1	100~104	one hundred and five	one hundred and six
accuracy	2×10-5	2×10-6	1×10-6	2×10-6	2×10-5

9600 type multifunctional DC comparator calibration device

[bridge]ZY4 Double arm bridge calibration standard

2026-6-16 15:57:29

ZY4 type double arm bridge calibration standard

Description
The ZY4 double bridge calibration standard is mainly used to make up for the shortcomings of the current high-precision adjustable standard, and to provide a practical combination standard for double bridge users, measurement stations, or maintenance centers who lack calibration standards. The entire instrument consists of two independent systems, namely the zeroing system and the standard resistance system, which can be used together or separately. Used as a standard or calibration device for the overall calibration of double bridges at levels below 0.05%, and can also be used as a zero point indicator for balancing circuits and for maintenance and sensitivity comparison of portable bridge zero point indicators
Main technical performance
1. Main parameters of each standard resistor (see table)
2. Zero point instrument system:
Voltage sensitivity is about 1.2 grids/�� V (approximately 1.4mm per grid)
Damping time:<4s
Indicator: ± 25 �� A (internal resistance of approximately 4k ��, level 1.5, ± 50 division band)
Reflective mirror)
3. Zero pointer power supply: 1 6F22 type 9V laminated battery
4. Dimensions: 435 × 225x150 (mm)
5. Quality: Approximately 5kg
This instrument has eight fixed value standard resistors and three sets of stepper resistor sockets. According to the requirements of the standard instrument for 0.05% double bridge calibration. The highest accuracy is 0.01%. The accuracy decreases below 0.01 ��, and the pattern of decrease is consistent with the decrease in accuracy of the double bridge in different measurement ranges.

Main parameters of each standard resistor

fixed value mark accurate electricity block	resistance value (��)	accuracy (%)	reference power (Current)	Short term maximum power (Current)	Usage environment temperature	Usage environment relative humidity
	one thousand	zero point zero one	0.05W	0.2W	20±15�� Double bridge calibration temperature: (1)0.05% 20±2�� (2) 0.1% 20±10�� (3) Below 0.1% 20±15��	��80%
	one hundred
	ten
	one
	ten^-1		0.5A	1A
	ten^-2	zero point zero two	1.5A	2.5A
	ten^-3	zero point zero five	3.5A	6A
	ten^-4	zero point one
variable standard resistance	11×10	zero point zero one	0.05W	0.2W
	11×1
	11×10^-1	zero point zero two

ZY4 type double arm bridge calibration standard

[bridge]UJ33D-2 type digital potentiometer

2026-6-16 15:57:21

Simple description:
The UJ33D-2 digital potentiometer is capable of generating and measuring voltage values through digital direct reading, as well as temperature direct reading; The output standard voltage signal can carry a load and directly verify various low impedance instruments; Adopting a four terminal output method to eliminate voltage drop errors caused by measuring wires during small signal output; Millivolt values corresponding to various commonly used temperature ranges for thermocouple indexing numbers can be generated, and temperature can be directly read and displayed. Equipped with a precise reference source, standard batteries are removed to avoid environmental pollution, while avoiding repeated requirements for standards, making it convenient for users to operate; Equipped with RS-232 standard interface, it can communicate with computers.

Main technical performance:
2. Power supply: 8 1.5V dry batteries
3. Dimensions: 310 × 240 × 170 (mm)
4. Mass: Approximately 4kg

UJ33D-2 Digital Potentiometer

[bridge]UJ33D-1 type digital potentiometer

2026-6-16 15:57:12

UJ33D-1 Digital Potentiometer
Simple description:

UJ33D-1 digital potentiometer generates and measures voltage and current values through digital direct reading; The output standard voltage signal can carry a load and directly verify various low impedance instruments; Adopting a four terminal output method to eliminate voltage drop errors caused by measuring wires during small signal output; Equipped with a precise reference source, standard batteries are removed to avoid environmental pollution, while avoiding repeated requirements for standards, making it convenient for users to operate; Equipped with RS-232 standard interface, it can communicate with computers.

Main technical performance:

2. Power supply: 8 1.5V dry batteries
3. Dimensions: 310 × 240 × 170 (mm)
4. Mass: Approximately 4kg

UJ33D-1 Digital Potentiometer

[bridge]UJ33A Type DC Potentiometer

2026-6-16 15:57:03

Simple description:
The UJ33A DC potential difference meter can measure DC voltage in laboratories, workshops, and on site, and can also measure DC resistance, current, power, and temperature after conversion. It can verify general voltage signals, such as thermocouple signals, which can also be converted through a conversion switch and output as voltage signals. It can be used to verify industrial instruments such as electronic potentiometers and millivoltmeters that measure voltage. The instrument is equipped with a transistor amplifier zeroing device and an unsaturated standard battery manufactured by our factory, which has a small temperature coefficient and good stability.

Main technical performance:

1. Measurement range: 1 �� V~1.0550V
2. Accuracy: 0.05%
3. Usage conditions:
(1) Environmental temperature: 0~35 ��
(2) Relative humidity: 25%~80%
(3) No severe vibration or strong magnetic field interference.
4. Power supply: 3V (6 No. 1 dry batteries in series and parallel)
9V (3 parallel 6F22 batteries)
5. Dimensions: 310 × 240 × 170 (mm)
6. Quality: Approximately 5kg

Main parameters of each range

UJ33A DC Potentiometer

[bridge]UJ31 type low potential DC potentiometer

2026-6-16 15:56:55

Simple description:
The UJ31 low potential DC potentiometer can be used in the laboratory to measure DC electromotive force, voltage, and can also be converted to measure DC resistance, electrical power, and temperature. Verify the general voltage signal. The thermocouple signal can also be converted into a voltage signal output through a conversion switch, which can be used to calibrate industrial instruments such as electronic potentiometers and millivoltmeters that measure voltage.

Main technical performance:

1. Measurement range: 1 �� V~170mV
2. Accuracy: 0.05%
3. Dimensions: 402 × 225 × 140 (mm)
4. Quality: 6kg

Complete set (user customized)

1. AC15/4 type galvanometer;
2. YJ24 DC stabilized power supply or R40A battery;
3. BC9a standard battery.

[bridge]UJ25 High Potential DC Potentiometer

2026-6-16 15:56:46

Simple description:
The UJ25 high potential DC potentiometer is suitable for precise measurement of electromotive force and voltage in laboratories and metrology departments. It can also be used as a standard instrument to calibrate DC potential difference meters of 0.02 level and below, indirectly measuring current, resistance, calibration instruments, thermoelectric elements, etc

Main technical performance:

1. Measurement range: 1 �� V~1.911110V
2. Accuracy: 0.01%
3. Dimensions: 477 × 257 × 170 (mm)
4. Weight: 7.5kg

Complete set: (user provided)

1. AC15/2 type galvanometer or matched with AC24 type photoelectric amplification galvanometer;
2. YJ42 precision stabilized power supply or R40A battery;
3. FJ51 or FJ56 DC voltage divider box;
4. BC9a standard battery.

[bridge]QJ19 type single arm dual-purpose DC bridge

2026-6-16 15:56:38

Description of QJ19 single arm dual-purpose DC bridge:

It can measure the DC resistance within the range of 10-5~106 ��, the resistivity of metal materials, the contact resistance of electrical equipment such as switches, relays, contactors, and the DC resistance of motor and transformer windings.

Main technical performance
1. Measurement range: 10 �� ~1M ��
2. Accuracy: 0.05%
3. Dimensions: 407 × 257 × 170 (mm)
4. Quality: 6kg

Main parameters of each range

Complete set (user customized)

1. AC15/2 or AC15/4 galvanometer.
2. BZ3 standard resistors (10, 1, 0.1, 0.01, 0.001 ��), depending on specific measurement needs.
3.871 type DC precision stabilized voltage and current source.

[bridge]QJ32 type DC single double arm bridge

2026-6-16 15:56:29

The QJ32 DC single double arm bridge has a large measurement range and high accuracy, and is a precision instrument used in industrial and mining enterprises and laboratories. It is available in mains type. Additional ammeter and standard resistor are required. Accuracy level: 0.05 level.

Usage	measurement range	Error (%)
Single Bridge	102~106��	105~106�� ±0.5
		102~105�� ±0.05
Twin Bridges	10-5~102��	10-3~102�� ±0.05
		10-4~10-3�� ±0.1
		10-5~10-4�� ±0.5

QJ32 type DC single double arm bridge

[bridge]QJ42 type DC double arm bridge

2026-6-16 15:56:21

The QJ42 DC double arm bridge is suitable for schools and industrial and mining enterprises to measure the conductivity of metals, DC resistance of transformer windings, and contact resistance of electric brushes, composite switches, etc. It is easy to carry and use. There are two types to choose from: mains power supply type and built-in battery type.

Measurement range: 0.0001 ��~11 ��
Basic limit: 0.01 ��~11 ��
Accuracy level: Level 2
Dimensions: 265 × 220 × 155mm

[bridge]QJ23A DC single arm bridge

2026-6-16 15:56:13

The QJ23a type DC single arm bridge has an internal zero finger and is easy to carry. The QJ23b has a unique three terminal method for measuring resistance, which improves the accuracy of measuring small resistances and allows for remote measurement of resistance. It is a high-performance resistance measuring instrument available in both mains and battery types.

Measurement magnification	Effective range (��)	Error (%)
X0.001	1��11.11	��±0.5
X0.01	10��111.1	��±0.2
X0.1	100~1111	��±0.1
X1	1K��11.11K
X10	10K��111.1K
X100	100K��1111K	��±0.2
X1000	1M��11.11M	��±0.5

model	QJ23A type DC resistance bridge
measurement range	0��11.110M��
rate	range	resolution	accuracy
×10^-3	0-11.110��	1m��	1%
×10^-2	0-111.10��	10m��	0.5%
×10^-1	0-1.1110k��	100m��	0.1%
×1	0-11.110k��	1��	0.1%
×10	0-111.10k��	10��	0.1%
×10^two	0-1.1110M��	100��	0.5%
×10^three	0-5.000M��	1k��	2%
×10^three	5-11.110M��	1k��	5%
Bridge power supply	4.5V (3 1.5V No.1 batteries connected in series)
Zero finger instrument power supply	9V (1 6F22 type laminated battery)
Overall dimensions	(L)320mm×��W��280mm×��H��170mm
weight	3kg

[bridge]HTBZ Type Variable Ratio Tester

2026-6-16 15:56:04

The HTBZ type variable ratio tester has high accuracy and strong anti-interference ability! Can measure 12 points!

1�� Product Introduction
The transformation ratio tester uses a transformation ratio bridge to measure the transformation ratio of transformers, which is cumbersome to operate and has a narrow measurement range. It is no longer suitable for the fast-paced and high-efficiency requirements of modern measurement. To this end, our factory has adopted modern electronic technology and developed a new generation of fully automatic variable ratio group tester, which has the advantages of small size, light weight, high accuracy, and good stability. The ratio tester adopts a large screen LCD Chinese character display and menu operation, with a friendly interface. The ratio group can be measured in one go. This instrument is an ideal testing device for the power industry sector.

2�� Functions and Features of HTBZ Variable Ratio Tester
1. Automatically measure wiring groups.
2. Automatically perform group transformation and directly measure the transformation ratio of single-phase, three-phase transformers and mutual inductors.
3. Automatically switch phase sequence.
4. Automatically switch range.
5. Automatic calibration table.
6. After inputting the standard transformation ratio, the relative error can be automatically calculated.
7. Once the measurement is completed, the test voltage will be automatically cut off.
8. The measurement results are automatically saved, test data can be printed out, and 20 historical measurement data can be stored.

3�� Main technical indicators
1. Variable ratio measurement range: 1-10000
2. Group: 1 to 12 o'clock
3. Accuracy: 1-1000 at level 0.2;
1000~10000 Level 0.5
4. Power supply: AC220V ± 10%, 50Hz
5. Operating environment temperature: -5 ��~40 ��
6. Operating environment humidity:<85%
7. Volume: 430 × 320 × 215 mm3
8. Weight: 5kg

[bridge]QJ35 Transformer ratio bridge

2026-6-16 15:55:56

QJ35 Transformer Ratio Bridge

Product Name: QJ35 Transformer Ratio Electric Bridge
Variable ratio range: 1.02-111.12
Accuracy: 0.2%

QJ35 Transformer Ratio Bridge

[bridge]QJ36 DC single double arm bridge

2026-6-16 15:55:47

The QJ36 type is a precision laboratory DC resistance bridge with a total range of 0.01 �� 1M �� and an accuracy of 0.02 level
�� Can verify double bridges of 0.01~0.02 level
A device with standard resistors can be used to calibrate DC resistance boxes below 0.1 level.
The product has a DC resistance box function, with a resistance adjustment range of 0-11.1 and an accuracy of 0.01 level for 1110k ��.

0.01�̦��1.111110M��		Single 0~1.11110M �� Double 0~111.1110 ��
use way	effective range	resolution	accuracy class
double bridge	0��11.11110 m��	0.01�̦�	zero point zero two
	0��111.1110 m��	0.1�̦�	zero point zero two
	0��1.111110��	1�̦�	zero point zero two
	0��11.11110��	10�̦�	zero point zero two
	0��111.1110��	100�̦�	zero point zero two
	0��1.11110k��	1m��	zero point zero two
Single arm bridge	0��11.11110k��	10m��	zero point zero two
	0��111.1110k��	100m��	zero point zero two
	0��1.111110M��	1��	zero point one
	��	��	��
	��	��	��
	��	��	��
407×257×170��mm�� L×W×H
About 7KG

QJ36 DC single double arm bridge matching (self equipped)

a. Standard resistor: BZ3 type (0.01 level) standard resistor or dedicated resistor.

b. Power supply: dry battery or rechargeable battery or regulated power supply DC1.5V~20V 10A

c. Zero finger gauge: Select AC19 electronic amplification zero finger gauge, or AC15/2, AC15/4 photoelectric compound reflection galvanometer, etc. And AC24 type photoelectric amplification galvanometer can be selected.

[bridge]QJ44 DC double arm bridge

2026-6-16 15:55:39

QJ44 DC double arm bridge

Technical parameters: Measurement range, minimum step accuracy of 10-4 �� to 11 ��, 5 �� , 0.2% using battery

Detailed introduction of DC double arm bridge

Technical parameters of QJ44 double arm bridge:

measurement range	Minimum step		accuracy	Factory price (yuan/unit)
10-4�� Up to 11 ��	5�̦�	0.2%		eco-friendly	Using electricity

QJ44 DC double arm bridge

[bridge]QJ65 type single arm dual-purpose DC bridge

2026-6-16 15:55:30

QJ65 type dual arm dual-purpose DC bridge

measurement range	Minimum step	accuracy	Scale cm^three	Weight kg
ten^-6~10^six��	0.01�̦�	zero point zero two	463115	4��4.8
Additional purchased parts: standard resistor (p6), four terminal fixture, two ends/; Four terminal tested resistance box (p12); Ordinary models also require a galvanometer and power supply (p13)

[bridge]WY2817 type precision LCR digital bridge

2026-6-16 15:55:22

Characteristics of WY2817 Precision LCR Digital Bridge:

�� High precision of 0.05%
�� L, C, R automatically select measurement
�� Three speed measurement: slow, medium, and fast
There are three types of interfaces: RS232, printing interface, and sorting interface
Three measurement signal levels: 0.1V, 0.3V, and 1.0V
Measurement parameters: L/Q, C/D, R/Q, Z/Q, Z/D
Four level sorting, sorting audio volume control, and audio position selection
There are three data reading methods: direct reading, absolute deviation, and relative deviation
Six typical measurement frequencies: 100Hz, 120Hz, 1kHz, 10kHz, 40kHz, and 100kHz

Technical Indicators:
1. Measure parameters L/Q, C/D, R/Q, Z/Q, Z/D
2. Measure frequencies of 100Hz, 120Hz, 1kHz, 10kHz, 40kHz, 100kHz
3. Measure voltage levels of 0.1V, 0.3V, and 1.0V
4. Measurement accuracy of 0.05%
5. Measurement range Z, R: 0.0001 ��~99.99 M �� C: 0.0001pF~99999 �� F L: 0.0001 �� H~9999.9H Q, D: 0.0001~99999
6. Measurement speed Slow: 1.5 times/second Medium: 5.1 times/second Fast: 20 times/second
7. Equivalent series and parallel connection with an average frequency of 1 to 99
8. Automatic range mode, maintain calibration function, open circuit and short circuit calibration
9. Display methods include direct reading, absolute deviation, relative deviation V/I
10. Sorting function with four levels of sorting, sorting audio volume control, and audio position selection
11. RS232 interface, printing interface, sorting interface

[bridge]LCR type digital bridge

2026-6-16 15:55:14

characteristic
The WY2812A LCR automatic measurement digital bridge is an intelligent component parameter measuring instrument. It contains multiple microprocessor chips that automatically measure the inductance, capacitance, resistance, quality factors, and loss values of the components, while displaying the main and auxiliary parameters of the tested components.
The instrument has the functions of automatic measurement range and automatic identification of the reactance properties of the tested component. Users can choose the series or parallel equivalent parameters of the measuring component according to their testing needs. To meet the needs of measuring electrolytic capacitors, there is a 2V DC bias voltage inside the instrument. Equipped with range locking function, it saves testing time when testing components in large quantities.

technical indicators
1. Measurement parameters:
R��L-Q��C-D
2 Measurement range:
R: 0.001 ��~100M �� Resolution: 0.001 ��
L: 0.1 �� H to 9999H Resolution: 0.1 �� H
C: 0.1pF~9999 �� F Resolution: 0.1pF
Q��0.0��9999
D��0.0��9999
3 Test signal frequency:
100Hz or 1kHz
4 Voltage amplitude:
0.3Vrms
5 Test speed:
2 times per second
6 Display mode:
The main and auxiliary parameters are both displayed with 4-digit LED and have an automatic decimal point.
7 tested component connections:
Four terminal connection
8 Power Supply:
220V (AC) ± 10% 50Hz
9 External dimensions:
240 (width) x 90 (height) x 260 (length) mm

[bridge]LKI-2 type inductor group

2026-6-16 15:55:05

The LKI-2 inductor group includes 10 different inductors, suitable for use with WY2853 series (>100MHz) Q-meters or other similar Q-meters. Among them, two inductors are dedicated to measuring tg �� and �� in conjunction with the WY914 loss angle testing fixture

This inductance group has a high Q value and good stability, which enables the high-frequency Q meter to obtain sharp resonance points during measurement, thereby increasing its measurement accuracy. The inductance and Q value data of each inductor are shown in the following table:

Inductance number	inductance		Q value ��	Approximate value of distributed capacitance (PF)	remark
Inductance number	standard value	accuracy	Q value ��	Approximate value of distributed capacitance (PF)	remark
LK-1	0.1��H	±0.02��H	two hundred and fifty	five	LK-3 is specifically designed for measuring �� and tg �� at 15MHz LK-9 is specifically designed for measuring �� and tg �� at 1MHz. When used with WY914, the inductor should be connected from the back of the Q meter to the front
LK-2	0.5��H	±5%	two hundred and fifty	five
LK-3	1.0��H	±5%	two hundred and fifty	five
LK-4	1.5��H	±5%	two hundred	six
LK-5	10��H	±5%	two hundred	six
LK-6	2.5��H	±5%	two hundred	six
LK-7	100��H	±5%	one hundred and eighty	eight
LK-8	250��H	±5%	one hundred and eighty	eight
LK-9	380��H	±5%	one hundred and fifty	eight
LK-10	1mH	±5%	one hundred and fifty	eight

LKI-2 type inductor group

[bridge]LKI-1 type inductor group

2026-6-16 15:54:56

The LKI-1 inductor group is one of the optional components for the WY2851 series Q meter This inductance group includes 9 inductors with different inductance values. When testing the distributed capacitance of the coil, the capacitance of the capacitor, high-frequency dielectric loss, high-frequency resistance, and transmission line characteristic impedance of high-frequency circuits and components using a high-frequency Q-meter, inductors must be used as auxiliary tools

This inductance group can be used as a reference for checking the stability of the Q meter Regularly conduct Q value tests on each inductor of the inductor group at different frequencies, and report the test results, such as test frequency
Record the Q reading value, resonant capacitor reading value, etc. one by one, and store the inductance group in a dry bottle regularly For reference during regular inspections and maintenance of Q-tables in the future
A: LKII-I inductor resistor, with a total of nine coils, L: 0.5 �� H-5mH

Inductance No	Nominal inductance	Q value ��	Approximate value of distributed capacitance
one	5mH	ninety	10PF
two	2.5mH	one hundred	12PF
three	1mH	one hundred	14PF
four	250��H	one hundred and fifty	7PF
five	100��H	one hundred and fifty	6PF
six	25��H	two hundred	6PF
seven	10��H	two hundred	6PF
eight	2.5��H	two hundred	6PF
nine	0.5��H	one hundred	5PF

LKI-1 type inductor group

[bridge]WY914 Dielectric loss testing device

2026-6-16 15:54:48

1 Characteristics
Equipped with WY914 dielectric loss testing device and WY2850 series Q-meter (the best Q-meter is WY2851D or WY2853D) and inductor. Capable of testing the high-frequency dielectric loss tangent and dielectric constant of insulation materials.
2 Working characteristics
2.1 Flat capacitors:
2.1.1 Pole size:
��25.4mm
2.1.2 Adjustable range and resolution of pole spacing:
��10mm��±0.01mm
2.2 Cylindrical capacitors:
2.2.1 Linear capacitance:
0.33PF/mm ± 0.05PF.
2.2.2 Adjustable length range and resolution:
0~20mm��±0.01mm
2.3 Fixture plug spacing:
25mm±1mm
2.4 Tangent value of fixture loss angle:
�� 4 × 10-4 (at 1MHz)
3 Working principle
This testing device consists of two micrometer capacitors. Flat capacitors are generally used to clamp the tested sample. A cylindrical capacitor is a linear variable capacitor with a resolution of up to 0.0033PF. Use a Q-meter as an indicator instrument. The tangent value of the loss angle of insulating materials is obtained by converting the change in Q value of the tested sample when it is placed in a flat capacitor and when it is not placed in the sample, based on the change in the scale reading of the cylindrical capacitor. At the same time, the dielectric constant is calculated by converting the scale reading of the flat capacitor.

[bridge]QJ84A Digital DC Dual arm Bridge (Portable)

2026-6-16 15:54:39

The QJ84A digital DC double arm bridge (portable) is the best product in the wire and cable industry for testing core wire resistance.

Can replace QJ42, QJ44, and QJ57 DC double arm bridge (Kelvin bridge).
The digital DC bridge series has been awarded the Shanghai High tech Achievement Transformation Project.

model	QJ84A Digital DC (Dual Arm) Bridge (Portable)
measurement range	0-20k �� seven range range
Minimum resolution	1�̦�
range	measurement range	resolution	test current	accuracy class
20m��	0-19.999m��	1�̦�	1A	0.5%
200m��	0-199.99m��	10�̦�	1A	0.1%
2��	0-1.9999��	100�̦�	100mA	0.05%
20��	0-19.999��	1m��	100mA	0.05%
200��	0-199.99��	10m��	10m A	0.05%
2k��	0-1.9999k��	100m��	1m A	0.05%
20k��	0-19.999k��	1��	100��A	0.05%
display	4 1/2 LED digital tube
power supply	AC/DC dual-purpose power supply AC220V/DC6V (5 nickel hydrogen rechargeable batteries)
size	(W)320 mm×(H)280 mm×(D)170mm
weight	6kg

The basic parameters of QJ84A digital portable wide range DC double arm bridge are the same as those of QJ84. Powered by batteries and suitable for on-site use without AC power supply. It is an upgraded product of our factory's Kelvin bridge, which is based on the bridge circuit and uses precision alloy wound resistors as the benchmark. They not only have the same simple, fast, and eye-catching features as digital multimeters. At the same time, it inherits the advantages of accurate, stable, and reliable Kelvin (double arm bridge) bridge. It is an ideal product for precision measurement of various types of DC low value resistors by industrial and mining enterprises, scientific research units, colleges and universities, and metrology departments.
Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
The reliable main components are imported original and specially selected for aging.

[bridge]20 series unbalanced multi-purpose DC bridge

2026-6-16 15:54:31

Brief description: Measurement range: 0.1 �� 100k �� Accuracy: 0.5% (for teaching experiments)

20 series unbalanced multi-purpose DC bridge

[bridge]QJ57 DC bridge

2026-6-16 15:54:22

Product Name: QJ57 DC Bridge
Measurement range: 0.01 �� ~1.11, 110k ��
Accuracy: 0.05%

QJ57 DC bridge

[bridge]QJ83 Digital DC Single Arm Bridge

2026-6-16 15:54:13

The QJ83 digital DC single arm bridge can replace single arm bridges (Wheatstone bridges) such as QJ23a, QJ23, and QJ24.

model	QJ83 digital DC (single arm) bridge
measurement range	0-20M �� seven range range
Minimum resolution	1m��
range	measurement range	resolution	test current	accuracy class
20��	0-19.999��	1m��	100mA	0.05%
200��	0-199.99��	10m��	10mA	0.05%
2k��	0-1.9999k��	100m��	1mA	0.05%
20k��	0-19.999k��	1��	100��A	0.05%
200k��	0-199.99k��	10��	25��A	0.05%
2M��	0-1.9999M��	100��	2.5��A	0.1%
20M��	0-19.999M��	1000��	0.25��A	0.1%
display	4 1/2 LED digital tube
power supply	AC 220V 50Hz power consumption 6W
size	(W)250 mm×(H)70 mm×(D)285mm
weight	2kg

The QJ83 digital wide range DC single arm bridge is a unique digital bridge based on the bridge circuit and using precision alloy winding resistors as the reference. It is an updated product of the Wheatstone bridge. It has the characteristics of being as simple, fast, and eye-catching as a digital multimeter, while maintaining the accuracy, stability, and reliability of the Wheatstone bridge. It is the best choice for precision measurement of various DC resistors in industrial and mining enterprises, scientific research units, and metrology departments, as it is easy for users to use, does not require zero adjustment, does not need to match standards, and has fast testing.
Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
The reliable main components are imported original and specially selected for aging.

[bridge]QJ83A Digital DC Single Arm Bridge (Portable)

2026-6-16 15:54:05

The QJ83A digital DC single arm bridge (portable) can replace single arm bridges (Wheatstone bridges) such as QJ23a, QJ23, and QJ24.

The basic parameters of QJ83A portable digital DC single arm bridge are the same as those of QJ83. Powered by batteries and suitable for on-site use. It is a digital bridge that is truly based on the bridge circuit and uses precision alloy wound resistors as the benchmark. It is an updated product of Wheatstone bridge. It has the characteristics of being as simple, fast, and eye-catching as a digital multimeter, while maintaining the accuracy, stability, and reliability of the Wheatstone bridge. It is the best choice for precision measurement of various DC resistors in industrial and mining enterprises, scientific research units, and metrology departments, as it is easy for users to use, does not require zero adjustment, does not need to match standards, and has fast testing.
Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
The reliable main components are imported original and specially selected for aging.

model	QJ83A Digital DC (Single Arm) Bridge (Portable)
measurement range	0-20M �� seven range range
Minimum resolution	1m��
range	measurement range	resolution	test current	accuracy class
20��	0-19.999��	1m��	100mA	0.05%
200��	0-199.99��	10m��	10mA	0.05%
2k��	0-1.9999k��	100m��	1mA	0.05%
20k��	0-19.999k��	1��	100��A	0.05%
200k��	0-199.99k��	10��	25��A	0.05%
2M��	0-1.9999M��	100��	2.5��A	0.1%
20M��	0-19.999M��	1000��	0.25��A	0.1%
display	4 1/2 LCD display
power supply	DC9V (6 No. 1 1.5V dry batteries)
size	(W)320mm×(H)280mm×(D)170mm
weight	6kg

QJ83A digital DC single arm bridge (portable)

[bridge]QJ83-1 type digital DC bridge

2026-6-16 15:53:56

Can replace single arm bridges (Wheatstone bridges) such as QJ23a, QJ23, and QJ24.

The range of QJ83-1 is one notch smaller than that of QJ83 (with a minimum resolution of 100 �� starting from 2 ��), making it more suitable for measuring medium and high resistance values. It is an updated product of Wheatstone bridge, which is a digital bridge based on the bridge circuit and using precision alloy winding resistors as the reference. It has the characteristics of being as simple, fast, and eye-catching as a digital multimeter, while maintaining the accuracy, stability, and reliability of the Wheatstone bridge. It is the best choice for precision measurement of various DC resistances in industrial and mining enterprises, scientific research units, and metrology departments, as it is easy for users to use, does not require zero adjustment, does not need to match standards, and has fast testing.
Accuracy is superior to that achieved by an external galvanometer connected to a DC resistance bridge of the same level.
Simply connect the tested resistor and select the appropriate range, without the need for manual operation during the testing process.
The fast sampling time is 0.4 seconds, and stable data can generally be displayed within a few seconds.
Featuring a 200mm large digital display, the handwriting is clear and easy to read.
The stable main reference resistor is made of precision manganese copper alloy wire winding. Stability is better than 0.02%.
The reliable main components are imported original and specially selected for aging.

model	QJ83-1 Digital DC (Single Arm) Bridge
measurement range	0-2M �� seven range range
Minimum resolution	100�̦�
range	measurement range	resolution	test current	accuracy class
2��	0-1.9999��	100�̦�	100mA	0.1%
20��	0-19.999��	1m��	100mA	0.05%
200��	0-199.99��	10m��	10mA	0.05%
2k��	0-1.9999k��	100m��	1mA	0.05%
20k��	0-19.999k��	1��	100��A	0.05%
200k��	0-199.99k��	10��	25��A	0.05%
2M��	0-1.9999M��	100��	2.5��A	0.1%
display	4 1/2 LED digital tube
power supply	AC 220V 50Hz power consumption 6W
size	(W)250 mm×(H)70 mm×(D)285mm
weight	2kg

QJ83-1 Digital DC Bridge