SBW series temperature transmitter with thermocouple (resistor)Detailed product description：

summary:
The SBW series temperature transmitter with thermocouple or thermistor is a field installed temperature transmission unit in the DDZ-S series instruments. It integrates thermocouples or thermistors with transmitters to directly measure the temperature of liquid, vapor, and gas media within the range of -200 to 1600 ℃ in various industrial processes. It uses a two-wire transmission method (two wires as a common transmission line for power input and signal output). Convert thermocouple and thermistor signals into linear 4-20mA DC output signals, which are then sent to display, record and regulate instruments or computers. As a new generation of temperature measuring instruments, they can be widely used in industrial sectors such as metallurgy, power, light industry, textile, food, national defense, and scientific research. The transmitter can be installed in the junction box of thermocouples and thermal resistance beads to form an integrated structure. The transmitter structure is divided into single branch and double branch types, which are respectively matched with single or double thermocouples or thermistors. The double branch power supply can use the same power supply or different power supplies.

characteristic
1. The transmitter components are miniaturized and can be installed in junction boxes for thermocouples and thermal resistors to form an integrated structure.
2. As an integrated temperature transmitter, it can directly output a 4-40mA signal on industrial sites, which saves expensive compensation wire costs and improves the anti-interference ability during long-distance signal transmission.
3. It has linearization correction function, and the thermocouple transmitter has cold end compensation function.
4. High precision, small functionality, wide temperature range, stable and reliable operation.

Main technical specifications of SBW series temperature transmitter with thermocouple (resistor):
thermocouple
Allowable deviation of thermocouple electromotive force:

Thermocouple category	graduation mark	Level	Operating temperature range ℃	Allowable deviation △ t ℃
Nickel chromium copper nickel	E	ⅠⅠ	0~600	± 2.5 ℃ or 0.75% t
Nickel chromium nickel silicon	K	ⅠⅠ	0~600	± 2.5 ℃ or 0.75% t
Platinum rhodium 10- platinum	S	ⅠⅠ	0~1600	± 1.5 ℃ or 0.25% t

Note: t is the measured temperature (℃); Allowable deviation, take the larger of the two values

thermal resistor
Accuracy level of platinum thermistor: A or B level
Division number: Platinum thermistor Pt100
Copper thermistors Cu50, Cu100
Allowable deviation (△ t ℃):
Accuracy level of platinum thermistor: A or B level
Pt100: ± (0.15+0.002/t/) (Class A)
± (0.30+0.005/t/) (Grade B)
Cu50：±(0.30+0.006/t/)
Cu100：±(0.30+0.006/t/)

Transmitter components

1. Output: Within the range of measurement, output 4-20mA in a linear manner with the measured temperature signal of the thermocouple or thermistor (the output signal can also be made linear with the resistance signal of the thermistor or the millivolt signal of the thermocouple according to user requirements)
2. Basic error: Calculation formula: △=△ 1+△ 2
△ 1 thermocouple (resistance) tolerance corresponds to basic output error
△ 2 transmitter output basic error ± 0.5% FS
3. Transmission method: Two wire system
4. Working power supply: The minimum working power supply for the transmitter is 12V, the maximum is 36V, and the rated working voltage is 24V.

structure
A temperature transmitter with a thermocouple (resistor) is composed of a thermocouple or thermistor and transmitter components.
Thermocouples (resistors) include thermocouple (resistor) components, protective tubes, junction boxes, and other main parts, with the same protective tubes and junction boxes for both.
Transmitter components: consisting of a housing, electrical components, and cover plate, etc., the electrical components are sealed in the housing by pouring method, so they cannot be disassembled.

Model specifications:
Common specifications for temperature transmitters with thermocouples (resistors) (suffix plus S-meter double branch type):

model	graduation mark	Range (℃)
SBWR-2160/4160	E	0-400 0-600 0-800
SBWR-2260/4260	K	0-400 0-600 0-800 0-1000 0-1200
SBWR-2360/4360	S	0-1600 500-1600 600-1600
SBWZ-2160/4160	Cu50	0-100 0-150
SBWZ-2260/4260	Cu100	0-100 0-150
SBWZ-2460/4460	Pt100	-100-200 -50-50 0-50 0-100 0-150 0-200 0-250 0-300 0-400 0-500

*The S-type has a range of 0-1600 ℃, and accuracy is not calculated below 500 ℃
*The temperature range can be changed according to user requirements.