Atec Vishay-2311 - Manual (Page 4)

microstrain (0.0012 mV/V).
+25 000 microstrain (5% bridge unbalance or 12.5 mV/V), resolution 12.5
microstrain (0.006 mV/V).
Balance Time:
2 seconds, typical.
Manual Vernier Balance:
+50 microstrain (+0.025 mV/V).
Interaction:
Essentially independent of excitation and amplifier gain.
Storage:
Digital; up to 2 years without line power.
Shunt Calibration:
Circuit (2-level, dual polarity):
Single-shunt (for stress analysis) across any bridge arm, including
dummy gage.
Double-shunt (for transducer) across opposite bridge arms.
Provision for 4 dedicated leads to shunt external arms.
Cal circuit selected by switches on PC board.
Standard Factory-Installed Resistors (+0.l%) Simulate:
+200 and +1000 microstrain at GF=2 across dummy half bridge;
+1000 microstrain at GF=2 across dummy gage (120 and 350 ohm);
+1 mV/V (double-shunt) for 350 ohm transducer.
Remote-Operation Relays (Option Y):
4 relays (plus remote-reset relay for bridge balance and relay for excitation
on/off). Each requires 10 mA at 5 Vdc, except excitation on/off 25 mA.
Amplifier:
Gain:
1 to 11 000 continuously variable. Direct-reading.
+1% max of reading.
Ten-turn counting knob (X1 to X11) plus decade multiplier (X1 to X1000).
Frequency Response (all gains full output):
dc coupled: dc to 50 kHz, -0.5 dB max.
dc to 125 kHz, -3 dB max.
ac coupled: 1.7 Hz to 125 kHz, -3 dB max.
Model 2311 (Signal Conditioning Amplifier): Strain Gage Instruments
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