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Spec Sheet Description
WGI-400A, Instrumention Amplifier
The WGI-400A is a compact Instrumentation Amplifier which has basic functions required for measurement in combination with strain gage transducers.
Models:
- WGI-400A-00E: AC operation with no optional function
- WGI-400A-01E: AC operation with BCD output
- WGI-400A-02E: AC operation with RS-232C
- WGI-400A-03E: AC operation with RS-485
- WGI-400A-10E: DC operation with no optional function
- WGI-400A-11E: DC operation with BCD output
- WGI-400A-12E: DC operation with RS-232C
- WGI-400A-13E: DC operation with RS-485
Channels: 1
Applicable Transducers: Strain-gage transducers
Compatible Bridge Resistance: 87.5 to 1000 Ω (350 Ω, 4 in parallel connection)
Bridge Excitation: 2 VDC (30 mA), 4 VDC (50 mA), switchable
Measuring Range: ±3.2 mV/V (Including zero adjustment range)
Sampling Speed: 50 times/s
Resolution: 64000 counts/input range in both polarities
Calibration Functions: Actual load calibration, sensitivity-registered calibration, numerical value registered calibration
Display:
- ±9999
- Character height: 14 mm, red LED
- Speed: 50 times/s
Control Input:
Points: 4 (ZERO command, level test command, pattern command 1, pattern command 2)
Control Output
Points: 3 (HI, OK and LO)
Load Capacity: 30 VDC, 20 mA (Resistive load)
Pattern Functions: Registers 4 groups of high/low limit values and enables switching through control signals.
High/Low Limit Comparator: Points: 2 (HIGH, LOW)
Setting Range: ±9999
Comparison Speed: 50 times/s
Comparaison Function: Points: 1 (OK)
Analog Output
Outputs either voltage or current.
- Voltage output: ±10V (Load resistance: 2 kΩ or more), arbitrary scaling possible
- Current output: 4 to 20 mA (Load resistance: 500 Ω or less), arbitrary scaling possible
Response Speed: Approx. 0.25 s (10% to 90%)
Nonlinearity: Within ±0.1% FS
Frequency Response: 1 Hz (-3 dB ±1 dB)