page 1-2 Model U3W Universal In-Line Amplifier
1.2 Specifications
Power Requirements: 18 - 32 volts DC
Bridge Excitation: 5, or 3 volts DC @ 70 mA (user select-
able)
Output Current Range: 4-20 mA (“zero output” can be set at 12
mA for bipolar input signals)
Frequency Response: DC - 5000 Hz
Zero Balance Range: +/- 70% coarse, +/- 25% fine adjustment
range
Gain Adjustment Range: Switch selectable (0.5 to 6.6 mV/V), +/-
25% fine adjust
Short Circuit Protection: (+)Output to (-)Common
Environment Protection: IP-66 or NEMA4
Shunt Calibration: Solid-state relay
Long Term Zero Drift: .1% of Full Scale per 6 months
