Operating on an 18-30VDC unipolar supply voltage, the LiM-420 delivers a low noise 4-20mA output signal. Compatible with many 5 and 6 electrical connection LVDT and RVDT transducers (see specifications), this compact transmitter provides excellent performance on a budget. A generous excitation drive current of 20mA, allowing operation with transducer input impedances as low as 175 Ohms. The LiM-420 is designed for easy installation, plugged into a backplane-type connector, or with individual wires connected to the screw terminal barrier strip. Measuring less than 2.5x2.5 inches, the LiM-420 may be mounted or stacked using the permanently attached threaded standoffs, or card-edge guides. All six selectable gain ranges are easily accessed via DIP switches and two multi-turn potentiometers allow for fine zero and gain adjustments.
Low cost OEM 4-20mA (3-wire) transmitter
Very compact, open PC board design
DIP switch selectable coarse gain
Zero and span adjustment potentiometers
18 to 30VDC supply voltage
-25 to +85 Degrees C operating temperature range
Card-edge or barrier strip connections
Works with very low input impedance LVDTs and RVDTs
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