Manufacturer of electronic instrumentation including signal conditioners, custom power supplies, computer controlled amplifiers and computer controlled signal conditioning instrumentation.

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MODEL 176 DUAL CHANNEL CHARGE AMPLIFIER MODULE

Description

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.
Mechanical: 5.5” x 13.5” board, used with Model 5020-102 rack
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