F490A Portable force measuring instrument with recording functionDetailed product description：

The F490A portable force gauge with recording function can measure small, lightweight, and portable strain gauges for load, pressure, and torque. The measured data can be saved in CSV format in memory, and this file can be read and copied through interfaces such as USB. It has rich information display functions, such as four retention functions for peak/valley values, and a universal correction function that can record 4ch correction values. The No. 5 dry battery can be used continuously for about 30 hours.
*When the backlight is turned off, a 350 Ω sensor can be connected

Technical parameters of F490A portable force measuring instrument with recording function
Simulation section
Excitation voltage DC3V ± 10%, output current within 35mA
Signal input range -3.0~+3.0mV/V
Equivalent input correction range+0.5~+3.0mV/V
Zero adjustment range -2.0 to+2.0mV/V
Range adjustment range+0.5~+3.0mV/V
Accuracy • Nonlinear
Within 0.02%/FS (at 3.0mV/V input)

Zero drift
Within 0.3 μ V/℃ RTI
Range drift
Within 5ppm/℃
A/D Converter • Speed
80 times/second
Resolution
24 bit (binary) 3.0mV/V is approximately equal to 1/30000
Display section
Monitor 128 × 64dot black and white LCD
Display value 5-digit -99999~+99999 word height 14mm
Status Display • Status Display 1
R (in record)/A (AC adapter in use)/U (USB link in use)/N (NOVRAM writing in progress)/B (abnormal backup battery)
Status display 2
HI/OK/LO/PEAK/BOTTOM/HOLD
Setting section
Set project tare weight */equivalent input correction/range correction/zero point correction (one click zeroing)/unit weight setting */channel setting/upper limit value setting/lower limit value setting/instrument ID setting */set value LOCK
Unit/digital filtering/dynamic tracking (time, amplitude)/zero drift (time, amplitude)/near zero/digital zero/minimum division
Date/Alarm/Backlight/Auto Off/Version Display/Memory Check/Initialization
Maintain: mode/interval/start level/end level/monitoring time
Graphics: Timeline */Mode */Trigger Boundary */Trigger Level */Front Point Trigger*
Operation mode/upper and lower limit comparison mode/measurement mode */recording mode */real-time output mode*
*Cannot be used in simple operation mode
Record section
Record function starts recording after pressing the 'REC' button
Record during stability detection status
Keep value record when the hold function is released
Impedance recording (recording data at certain intervals)
Graphic data recording (recording data of displayed images)
Internal memory of recording media instrument
Recording method: CSV formatted TEXT file
Record data ID, record frequency, record date, measurement channel, display value, unit
Record a data volume of 20000 pieces of data
Maintain functionality
Maintain mode: sampling/peak/valley/peak to peak
Data monitoring interval: full interval/level/level+time
Metering Mode
Load metering/counting
time
Display year, month, day, and hour (year is the second digit of the solar calendar)
Accuracy difference of one minute per month (at room temperature)
interface
USB interface (communication specification: USB Ver. 1.1. communication speed: maximum speed, level: Mass Storage)
And virtual COM port, corresponding to OS: Windows XP (SP3), Windows Vista (SP1))
File operation (capable of referencing and copying files)
Virtual COM port (can read or write set values using terminal software)
Real time output (measured data is sequentially output through USB)

F490A Portable Force Measuring Instrument with Recording Function General Performance
Internal power supply: 4 No. 5 dry batteries
External power dedicated AC adapter (for AC100V, for free power supply)
Consumption current is about 60mA (connected to a 120 Ω sensor, when the backlight is turned off)
About 70mA (connected to a 120 Ω sensor, when the backlight is turned on)
The backup power supply uses lithium batteries to store set values and record data (with a retention period of more than 5 years)
Continuous use time of about 30 hours (when connected to a 350 Ω sensor and the backlight is turned off)
About 12 hours (when connecting a 120 Ω sensor and turning off the backlight)
Usage condition temperature: -10~40 ℃
Humidity: below 80% RH (no frost)
Dimensions 86 (W) × 132 (H) × 30 (D) mm (excluding protrusions)
Weight approximately 290g (including approximately 95g of battery weight)
accessory
Sensor connector 1
5 # dry battery 4
CD-ROM 1
User Manual 1
Other optional items
Product Name Details
AP0516 dedicated AC adapter (for AC100)
AP0520 dedicated AC adapter (for free power supply)
CA81-USB miniUSB computer USB transmission cable 1.8m