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MODEL 8120-100A/110A STRAIN GAGE CONDITIONER OPERATION MANUAL
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Table 1 Specifications
Transducers:
4-arm bridges, 90 to 2000 ohms, nominally 1 to 8 mV/V, full scale
(120 ohms or less requires 5-volt excitation).
Cables:
4-, 5-, or 7-wire, depending on application; 1000 feet maximum length.
Bridge Excitation:
Regulated 5 volts or 10 volts dc, selected with I/O connector
wiring. Transducers with sensitivity from 4 to 8 mV/V full scale must use 5-volt
excitation.
Balance Adjustments:
10-turn coarse and fine; will balance 1.5 mV/V initial
unbalance.
Span Adjustments:
10-turn coarse and fine; 1 to 8 mV/V, full scale.
Analog Outputs:
Three analog outputs available; 0 to +/- 5 volts with 50% over
range, 5 milliamperes maximum. Band pass is dc to 2 kHz, dc to 200 Hz, or dc to
2 Hz, depending on output used. Active low-pass filters provide for roll off of 60
dB per decade above cutoff frequency. Full-scale slew time is 1.4/f seconds,
where f is the cutoff frequency.
Common Mode Rejection:
Greater than 80 dB.
Output Ripple and Noise:
0.15% of full scale (rms) maximum for 2-KHz and
200 Hz outputs; 0.02% of full scale (rms) on 2 Hz output.
Accuracy:
0.05% of full scale.
Dimensions:
1.7 x 4.41 x 8.5 (H x W x D inches).
Operating Temperature Range:
0 to +130 degrees F.
Power Requirements:
105 to 135 volts ac, 50 to 400 Hz at 5 watts maximum.