Signal Conditioner for LVDT - LiM_4_20 Manufacturers & Suppliers

LiM-420 – Current Output, LVDT/RVDT OEM Signal Transmitter

• 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%C operating temperature range

• Card-edge or barrier strip connections

• Works with very low input impedance LVDTs and RVDTs


The LiM-420 is an LVDT/RVDT signal conditioning transmitter specifically designed for the OEM marketplace. Operating on an 18 to 30VDC unipolar supply voltage, the LiM-420 delivers a low noise 4 to 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.

Also see our other LVDT/RVDT signal conditioner models:
LVM-110: ±12 to ±15VDC supply, multiple uni-polar and bipolar selectable DC voltage outputs
LDM-1000: 10 to 30VDC supply, DC voltage and 4 to 20mA outputs, DIN rail mountable
ATA-2001: Line powered, DC voltage and current outputs, push-button programmable
IEM-422: Line powered, 4-20mA output, NEMA-13 rated enclosure
PML-1000: AC or DC supply, DC voltage, current and RS485 outputs, 1/8th DIN panel meter
MP-2000: Line-powered, analog DC & RS232 outputs, ¼ DIN, dual channel set point controller with bitmapped display


• Low cost/high performance

• Wide operating temperature range

• Six selectable gain ranges

• 20-turn zero & gain adjustment potentiometers

• Threaded standoffs for panel/box mounting


• Valve position feedback

• Roller gap sensing

• Paper head box position

• Coater knife gap

• Materials testing machines

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