Reference: A938
Index: B
Page 106
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Instruction Manual – NPS914 Alarm and Indication IED
9.5. RTD & mA input module (optional)
Figure. 9.5. - 7. RTD & mA module connectors.
The RTD & mA module is an add-on module with eight (8) RTD input channels. Each input supports 2-
wire, 3-wire and 4-wire RTD sensors as well as thermocouple (TC) sensors. The sensor type can be selected
with software for two groups, four channels each. The supported sensor types are as follows:
• Supported RTD sensors: Pt100, Pt1000
• Supported thermocouple sensors: type K (NiCh/NiAl), type J (Fe/constantan), type T (Cu/
constantan) and type S (Cu/CuNi compensating).
There are also two mA input channels available in the module. Please note that if the mA input channels are in
use, only the first four channels are available for RTD and TC measurements.
