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323349A-01 October 2002
© 2002 National Instruments Corp. All rights reserved.
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FieldPoint Operating Instructions
FP-RTD-124
AND CFP-RTD-124
Eight-Channel Four-Wire RTD
and Resistance Input Modules
These operating instructions describe how to install and use the
National Instruments FP-RTD-124 and cFP-RTD-124 three-wire
RTD and resistance input modules (referred to inclusively as the
[c]FP-RTD-124). For details on configuring and accessing the
[c]FP-RTD-124 over a network, refer to the user manual for the
FieldPoint network module you are using.
Features
The [c]FP-RTD-124 is a FieldPoint RTD and resistance input
module with the following features:
• Inputs for 100 Ω platinum RTDs (resistance temperature
detectors)
• Built-in linearization for six TCR (temperature coefficient of
resistance, or alpha) values of RTDs
• Direct resistance measurements with a 400 Ω range
• Four-wire measurement for high accuracy
• 16-bit resolution
• Filtering against 50 and 60 Hz noise
• 2,300 V
rms
transient overvoltage protection
• –40 to 70 °C operation
• Hot plug-and-play