Encore Electronics Inc.

Bridge configuration:

Quarter dynamic and full bridges are switch selectable on the front panel. Static and half bridges are selectable by changing the internal completion header. This unit also can be used as a general purpose differential amplifier

Bridge completion:

Internal header mounts customer-specified precision completion resistors

Bridge excitation:

Front panel adjustable 1.25VDC to 15.0VDC constant voltage excitation or fixed 15mA or 30mA constant current excitation; front panel on/off switch

Bridge balance:

Front panel trimpot allows bridge to be manually balanced

Operating modes:

Switch selects Zero, AC coupled, External cal signal, DC coupled, or DC cal

Gain:

Front panel switch selectable gains of 1, 2, 5,10, 20, 50, 100, 200, 500, 1000, 2000, 5000 with gain vernier

Frequency response:

DC to 50kHz, with board-mounted dip switch selectable two-pole active filter at 10Hz, 500Hz, 1kHz, 5kHz, 16kHz, and 32kHz -3dB frequencies

AC coupled response:

Board-mounted toggle switch selects 10Hz highpass or 0.4Hz highpass filter

CC limit:

Front panel LED lights if bridge wiring resistance exceeds constant current excitation capabilities

Output noise:

5 microvolts RMS RTI max, DC to 32kHz at G=1000

Power:

Model 819-003 power supply module provides unregulated ±24V to all 610 modules in enclosure

Mechanical:

19″W x 5.25″H x 14″D, seven-module rack adapter, Model 4007-145

Carrying case:

One- and two-module desktop cases, Model 4009-104 and Model 4010-106