Model 176 computer-controlled charge amplifier
The Model 176 computer-controlled charge amplifier module features variable gain and output scaling and accepts either differential or single-ended inputs. Adjustable parameters include: accelerometer sensitivity, differential or single-ended mode, scaling, filter setting, external calibration and zero mode.
Specifications
Accel sensitivity:
Any value from 2.0 to 200pC/g
Output scaling:
1mV/g, 10mV/g, 20mV/g, 100mV/g
Gain accuracy:
±1%
Input mode:
Differential or single-ended (-IN tied to common)
Maximum input:
30,000pC per input; 60,000pC differential
Frequency response:
80kHz at 0.7VRMS out without distortion; 9kHz at 7VRMS out without distortion
Filter:
Six-pole Butterworth highpass at 5Hz (always in), eight-pole Butterworth lowpass at 12kHz (may be bypassed)
External cal:
Cal voltage converted to charge by matched pair of 1000pf capacitors per channel
Offset:
Less than 5mVDC at output
Noise:
Less than 3mVRMS, filter in, input disconnected
Fault indication:
One green LED per channel turns red if amplifier output exceeds ±10V
Memory:
On-board EEProm stores serial number, calibration date, etc.
Sincerely Plantautomation Technology
Regards,
Client Success Team (CRM),
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