Rtd Input Module - GE IC670ALG620 Datasheet

GFK-1206D
June 1997

RTD Input Module (

datasheet GFK-1206D
The RTD Analog Input Module (IC670ALG620) accepts inputs from 4 independent 3-wire
and/or 4-wire platinum, nickel, nickel/iron, or copper RTDs.
Module features include:
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Power Sources
No loop power is required for this module. The excitation current for the RTDs is provided by
the module, which automatically matches the excitation current to each configured RTD type.
LED
A single indicator shows module status:
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H
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IC670ALG620
Selectable resistance measurements in tenths of ohms, tenths of degrees Fahrenheit, or
tenths of degrees Celsius
Individual channel configuration
Selectable resistance ranges: 0 – 500 ohms and 0 – 3000 ohms
Selectable RTD input as resistance or temperature (Celsius or Fahrenheit)
Reports high/low, underrange/over range, open wire and input short alarms.
Uses optional discrete inputs and outputs for status and control.
Two data acquisition rates based on 50 Hz and 60 Hz line frequencies
Configurable channel activation
ON: normal operation
Intermittent flashing: module fault
OFF: loss of backplane power or fatal fault
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Analog Input Module
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IC670ALG620
RTD Input Module
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