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1771-IXHR
Allen Bradley PLC-5 Thermocouple Input Module

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2 year warranty 2 year warranty*

Worldwide delivery Worldwide delivery

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*Manufacturer's warranty does not apply

PLC-5 Thermocouple Input Module
Description

About this product

Here is all you need to know


The Allen Bradley 1771-IXHR is a high resolution thermocouple/millivolt input module. Each AB 1771-IXHR module has 8 input points all of the same type or 4 each of two different types. Find more detailed technical information for this module below.

1771-IXHR Specifications
Number of inputs8, all of the same type or 4 each of 2 different types
Module location1771 I/O chassis - 1 module slot
Type of input (selectable)Type B, Pt-30% Rh/Pt-6% Rh (320 to 1800°C)
Type E, chromel/constantan   (-270 to 1000°C)
Type J, iron/constantan         (-210 to 1200°C)
Type K, chromel/alumel         (-270 to 1380°C)
Type R, Pt/Pt-1-% Rh            (-50 to 1770°C)
Type S, Pt/Pt-10% Rh            (-50 to 1770°C)
Type T, copper/constantan     (-270 to 400°C)
Millivolt                                (-100 to +100mV DC)
Thermocouple linearisationIPTS-68 standard, NBS MN-125
Cold junction compensationRange: 0 to 60°C
Accuracy: ±0.5°C 
Temperature scale (selectable)°C or °F
Input resolution3.2328uV
Display resolution0.1°C, 0.1°F; or 1.0 uV, 10 uV
Isolation voltageThis isolation meets or exceeds the requirements of
UL Standard 508, and CSA Standard C22.2 No. 142 
Common mode rejection120dB at 60 Hz, up to 1000 V peak
Common mode impedanceGreater than 10 megohms
Normal mode rejection60dB at 60 Hz over ±100 mV
Input overvoltage protection120 V ms, continuous
Open input detectionOpen input produces an overrange in less than 10 seconds
Data format2's complement binary
Calibration methodsAuto - Auto-calibration for offset and gain
Manual - Zero offset and gain adjustment for each channel
via programming terminal
Verify every six months for maintaining absolute accuracy 
Processor compatibilityPLC-3 or PLC-5 family processor using the 1771 I/O structure
and block transfer. (Not recommended for use with PLC-2
family processors.) 
Backplane power consumption8502 mA @ 5 V
Power dissipation4.25 Watts maximum
Thermal dissipation12.62 BTU/hr

Environment conditions
Operating temperature:
Rate of change:

Storage temperature:
Relative humidity: 

0 to 60°C (32 to 140°F)
Ambient changes greater than 0.5°C per minute may
temperarily degrade performance during periods of change
-40 to 85°C (-40 to 185°F)
5 to 95% (without condensation) 
KeyingBetween 20 and 22
Between 24 and 26 
Field wiring armCat. no. 1771-WI
Wiring arm screw torque7-9 inch-pounds
Cat. no.1771-IXHR
PDFs

The Specs

The below specs apply to this product

ManufacturerAllen Bradley
Range typeInput Module
RangePLC-2
UPC10612598114754
PDFs

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