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Specifications – Atec Vishay-2311 User Manual

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overrange condition. Vernier TRIM control is used to refine
bridge balance when desired.
AC IN: Capacitive coupling in the amplifier; eliminates static
component of the signal.
Bridge Excitation: ON-OFF switch for removing bridge
excitation from the strain gage or transducer.
Amplifier Balance: Adjusts any amplifier offset.
Excitation Level: Twelve-position switch; values arranged
for doubling power with each step. Also, variable setting: 0.4
to 6 Vdc.
Amplifier Gain Section: Continuously variable
potentiometer (1.00 to 11.00) plus push-button multipliers
control amplifier gain; direct-reading.
Battery Test: Momentary push button determines battery
level for bridge zero storage.
Main Power: Turns unit on/off; LED pilot light.
Pin Jacks: Monitoring of EXCITATION.

Rear Panel

AC Line Switch: Selects nominal 115 or 230 Vac operation.
Recessed to eliminate inadvertent movement.
Tape Playback Section: Slide switch activates magnetic
tape-playback operating mode. Connects the input to the filter
circuits and post amplifiers. BNC input connector.
Magnetic Tape Output: Full-scale +1.4V level available at
this BNC connector for driving magnetic tape recorder.
High-Level Output: Full-scale +10V level available at this
BNC connector for driving an oscilloscope, DPM, ADC, etc.
Output Receptacle: All three outputs available at this
connector for those who prefer to hard wire their connections
(mating plug included). Outputs are 75 mA for galvanometers,
+1.4V, and +10V.
Input Receptacle: All sensor inputs made through this 15-pin
quarter-turn connector. Pin selection determines mode of
operation (mating plug included).
Power Connector: Main power input from the rack adapter,
portable enclosure or individual line plug. Additional pins for
optional remote operation of shunt calibration, bridge
excitation (ON/OFF), and electronic bridge balance.

Specifications

Model 2311 (Signal Conditioning Amplifier): Strain Gage Instruments

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