Products
MODEL 635-004 STRAIN GAGE AMPLIFIER ASSEMBLY
Features
- Versatile switch selectable modes
- Auto bridge balance with battery backup
- Separate DC channel
- Isolated excitation source
Description
The Model 635-004 strain gage amplifier exhibits the performance characteristics and controls derived from 20 years of customer-oriented experience. It features very low output noise, broad-band response, auto and manual bridge balance and many other conveniences, all combined in one moderately priced module. The -004 version mounts ten channels in a standard 19" wide rack by moving the power supply under the modules.
channel
DC to 10 Hz
| Calibration: |
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Activated by front panel MODE switch or remote command; front panel R CAL switch selects one of four internal calibration resistors; toggle selects + or - bridge resistor to be shunted |
|
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Activated by front panel MODE switch or remote command; signal applied to rear panel BNC is connected to amplifier input |
| Signal outputs: | Main: | ±10V max, 100mA peak load |
| Tape: | ±10V max, 5mA peak load | |
| DC channel: | ±10V max, 10mA peak load |
Test points: Front panel two-pin Twin BNC connectors (Amphenol 31-2225) monitor bridge signal, bridge excitation, and amplifier output
Output limit: Front panel LED lights if output signal exceeds 1V RMS
Output noise: 2.5 microvolts RMS RTI max, DC to 10kHz at G=1000
Power: Model 858 rack-mounted power supply module provides unregulated ±24V, plus unregulated isolated supply for bridge excitation
Mechanical: 19"W x 10.5"H x 14"D, 10 module rack adapter, Model 4023-102
Carrying case: 2 module (8.75" high) desktop case, Model 4025-102
