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5. SPECIFICATIONS
5-1 SPECIFICATIONS
Model Name .............................................. WGI-400A Instrumentation Amplifier with Multipurpose
Indicator
The Number of Measuring Channels ......... 1
Compatible Sensor .................................... Strain Gage Transducer
Compatible Bridge Resistor ...................... 87.5 to 1000 Ω (350 Ω 4 units parallel connection available)
Bridge Excitation Voltage .......................... 2 VDC (Max 30 mA)/4 VDC (Max 50 mA) selectable
Measuring Range ...................................... ±3.2 mV/V (Zero adjusting range included)
Sampling Speed ......................................... 50 times/second
Resolution ................................................. 64000 count/input range in both polarities
Calibration functions ................................... Actual load calibration, Sensitivity-registered calibration,
Numerical value- registered calibration
Display……………………………………... Display range: ±9999
Character Height: 14 mm, Red LED
Display Speed: 50 times/sec
Decimal Point………………………………Put to anywhere possible
Zero Adjustment Functions ......................... Any value in the input range is set to digital zero,
Execution by key operation or external contact signal
Smoothing Function .................................. Minimum scale: 1, 2, 5, 10, 20, 50, and 100 counts
Moving average: 2, 4, 8, 16, 32, 64, and 128 times
Auto Zero Compensation Function .............. Zero tracking (Auto digital Zero within the setting range)
Zero Near Zero (Auto Zero display)
Additional Function .................................. Setting range: ±9999
Original Value Display Function ............... ±3.200 mV/V
Level Test Function ................................... Can display arbitrary value
Temperature Stability Zero point: Within ±0.5 μV
RTI
/°C
Sensitivity: Within ±0.01%/°C
Non-linearity ............................................. Within ±(0.1% FS +1 digit)
Control Input ............................................. The number of points: 4
Zero command, Level test command, Pattern select command 1,
and Pattern select command 2
Signal capacity: 12 VDC, 5 mA or more
Input mode: Open collector (NPN) or
non-voltage contact signal
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