72 Rockwell Automation Publication 1756-UM540E-EN-P - December 2017
Chapter 4 Temperature-sensing Analog Modules
For example, you can configure a channel with the following parameters:
• Input Type = RTD (Ohms)
• Sensor Type = 100 Ohm Pt 385
• Temperature Units = Celsius
For the 1756-IRT8I, the Scaling parameters are set as follows:
• Low Signal = -200.0000 °C
Low Engineering = -200.0000
• High Signal = 870.0000 °C
High Engineering = 870.0000
The following table lists temperature range limits on the module.
Table 18 - Temperature Limits for RTD and Thermocouple Sensor Types
Input Type Sensor Type Temperature Range Limits
RTD (Ohms) - 3-wire or 4-wire 100 Ohm PT 385
200 Ohm PT 385
500 Ohm PT 385
1000 Ohm PT 385
-200…870 °C (-328…1598 °F)
73…1143 °K
132…2058 °R
100 Ohm PT 3916
200 Ohm PT 3916
500 Ohm PT 3916
1000 Ohm PT 3916
-200…630 °C (-328…1166 °F)
73…903 °K
132…1626 °R
10 Ohm CU 247 -200…260 °C (-328…500 °F)
73…533 °K
132…960 °R
120 Ohm NI 672 -80…320 °C (-112…608 °F)
193…593 °K
348…1068 °R
100 Ohm NI 618
120 Ohm NI 618
200 Ohm NI 618
500 Ohm NI 618
-60…250 °C (-76…482 °F)
213…523 °K
384…942 °R
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