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Overview

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.

Benefits

  • 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 
Features

Please review product documents or contact us for the latest agency approval information.  

Electrical Characteristics

  • Line Power Voltage Requirements (VDC) 18 – 30

  • Output Type (mA) 4 – 20

  • Excitation Voltage (Vrms) 3.5

Signal Characteristics

  • Excitation Frequency (kHz) 2.5

Mechanical Attachment

  • Mounting  Printed Circuit Board Edge or Terminal Block

Usage Conditions

  • Operating Temperature Range -25 – 85 °C [ -13 – 185 °F ]

Other

  • Transducer Type  LVDT or RVDT with 5 or 6 wires

  • Transducer Channels  1

  • Display  No

Related Materials

Catalog Pages/Data Sheets

Product Specifications

Manual/User Guide

Terms and Conditions

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This information has been provided to you free of charge for your use but remains the sole property of TE Connectivity Corporation ("TE"). While TE has used reasonable efforts to ensure its accuracy, TE does not guarantee that it is error-free, nor makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. TE expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.