National Instruments FP-RTD-122 - Manual

323348B-01 April 2003
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FieldPoint Operating Instructions
FP-RTD-122 and
cFP-RTD-122
Eight-Channel Three-Wire RTD and
Resistance Input Modules
These operating instructions describe how to install and use the
National Instruments FP-RTD-122 and cFP-RTD-122 three-wire
RTD and resistance input modules (referred to inclusively as the
[c]FP-RTD-122). For details on configuring and accessing the
[c]FP-RTD-122 over a network, refer to the user manual for the
FieldPoint network module you are using.
Features
The [c]FP-RTD-122 is a FieldPoint RTD and resistance input
module with the following features:
• Inputs for 100 and 1,000 Ω platinum RTDs (resistance
temperature detectors)
• Built-in linearization for six TCR (temperature coefficient of
resistance, or alpha) values of RTDs
• Direct resistance measurements in 400 and 4,000 Ω ranges
• True three-wire compensation
• 16-bit resolution
• Filtering against 50 and 60 Hz noise
• Hot swappable
• 2,300 V
rms
transient overvoltage protection
• –40 to 70 °C operation