Rockwell Automation 1746-NT4 SLC 500 Thermocouple/mV Input Module Installation Instructions User Manual
Page 20
20 SLC™ 500 4-Channel Thermocouple/mV Input Module
Publication 1746-IN010D-EN-P - June 2004
Physical Specifications
Environmental Specifications
LED Indicators
5 green status indicators, one for each of 4 channels and one for module
status
Module ID Code
3510
Recommended Cable:
for thermocouple inputs
Appropriate shielded, twisted-pair thermocouple extension wire
(1)
(1)
Refer to the thermocouple manufacturer for the correct extension wire.
for mV inputs
Belden #8761 or equivalent
Maximum Wire Size
Two 14 AWG wires per terminal
Maximum Cable Impedance
25 ohms maximum loop impedance, for <1LSB error
Removable Terminal Strip
Allen-Bradley spare part Catalog Number 1746-RT32
Operating Temperature
0°C to +60°C (+32°F to +140°F)
(1)
(1)
When the NT4 module detects zero degrees (+/- 3°) at the CJC, it will detect an out of range condition and set values to
downscale -270°C (-454°F). It is recommended that ambient temperature surrounding the SLC 500 system be maintained
above 3°C (37.4°F) in order for the NT4 module to measure temperature correctly without detecting an out of range
condition.
Storage Temperature
-40°C to +85°C (-40°F to +185°F)
Relative Humidity
5% to 95% (without condensation)
Certification
UL listed
CSA approved
Class I, Division 2, Groups A, B, C, D
CE compliant for all applicable directives when product or packaging is marked