National Instruments cFP-RTD-124, FP-RTD-124 user manual

323349A-01 October 2002
© 2002 National Instruments Corp. All rights reserved.
FieldPoint™, National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation.
Product and company names mentioned herein are trademarks or trade names of their respective companies.
Forpatents covering National Instruments products, refer to the appropriate location: Help»Patents in your software,
the patents.txt file on your CD, or ni.com/patents.
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 100Ω 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 400Ω range
• Four-wire measurement for high accuracy
• 16-bit resolution
• Filtering against 50 and 60 Hz noise
• 2,300Vrms transient overvoltage protection
• –40 to 70 °C operation
• Hot plug-and-play