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Loop Powered Indicators
Loop Powered Indicators
Nivam Instruments offers Loop Powered Indicators, Series NVM-2211-EX/ NVM-2411-EX. It comes with the following salient features: 4-20 mA input; drop less than 1V - typically; 3-digit/ 4-digit LCD display; highly stable reference - easy calibration; span-zero externally adjustable; DIP switch for range change; and ex-proof and weather proof enclosure. This series accepts 4-20 mA signal from a two wire transmitter, and indicate the PV in percentage or in engineering units in the plant. These units are powered from 4-20 mA loop and do not require any external power supply. The voltage drop is less than 1V (typically 2 V in case of NVM 2411-EX). The instrument is housed in a weather-proof/ flame-proof aluminium cast enclosure. A wide range of products with various specifications regarding configuration, voltage, mounting type, weather standards, hazard proof standards, alarm and trip functions, etc are available.
