Model 664 two-channel computer-controlled
The Model 664 is a two-channel computer-controlled dynamic strain gage amplifier module. The following parameters are displayed and are adjustable: gain, zero, external cal, filter, excitation and excitation monitor. Each channel has its own isolated constant current excitation source.
Specifications
Amplifier channels:
Two independent AC-coupled channels
Gain settings:
Fixed log steps 1, 2, 5,10, 20, 50, 100, 200, 500, 1000, 2000, 5000
Gain accuracy:
±1%
Frequency response:
Six-pole Butterworth lowpass, selectable at 5kHz, 20kHz, 40kHz or bypassed; 5Hz highpass, single pole
Bridge mode:
¼ bridge dynamic mode; selecting 0mA disconnects excitation, leaving AC-coupled differential amplifier
Excitation:
Excitation sources isolated from amplifier output common; programmable from 1.0-25.0mADC in 0.1mA steps; up to 12.5VDC compliance voltage available
Excitation monitor:
Loop compliance voltage is scaled 50% and routed to amplifier output so external DAQ can calculate loop resistance
Fault indication:
One green LED per channel turns red if amplifier 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
Sincerely Plantautomation Technology
Regards,
Client Success Team (CRM),
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