National Instruments FP-RTD-124 - Manual
National Instruments FP-RTD-124 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 3 – Align the captive screws on the cFP-RTD-124 with the holes
- Page 5 – Figure 3 shows the input circuitry on one channel.; Taking Measurements from Four-Wire RTDs; Taking Measurements from Three-Wire RTDs
- Page 6 – Taking Measurements from Two-Wire RTDs
- Page 7 – Measuring Resistance; RTD Types
- Page 9 – Effects of Lead Resistance; POWER; Isolation and Safety Guidelines
- Page 10 – not
- Page 11 – Specifications; Input Characteristics
- Page 12 – Physical Characteristics; and; READY; indicators; Power Requirements; channels; Environmental; noncondensing; Shock and Vibration
- Page 13 – Safety; FCC Part 15A above 1 GHz; For full EMC compliance, you must operate this; Declaration of Conformity; at
- Page 14 – Mechanical Dimensions; Where to Go for Support; FieldPoint network module user manual
323349A-01
October 2002
©
2002 National Instruments Corp. All rights reserved.
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Product and company names mentioned herein are trademarks or trade names of their respective companies.
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FieldPoint Operating Instructions
FP-RTD-124
AND C
FP-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
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Summary
© National Instruments Corp. 3 FP-RTD-124 and cFP-RTD-124 To install the cFP-RTD-124, refer to Figure 2 and complete the following steps: 1. Align the captive screws on the cFP-RTD-124 with the holes on the backplane. The alignment keys on the cFP-RTD-124 prevent backward insertion. 2. Press firmly ...
© National Instruments Corp. 5 FP-RTD-124 and cFP-RTD-124 Figure 3 shows the input circuitry on one channel. Figure 3. FP-RTD-124 Input Circuit Taking Measurements from Four-Wire RTDs Four-wire RTDs generally have two wires of one color and two of another color (usually red and white). Connect the w...
FP-RTD-124 and cFP-RTD-124 6 ni.com negative terminals (COM and SENSE–). Connect the third wire to the positive terminal (SENSE+). Use a short jumper wire to connect the EXCITE+ terminal to the SENSE+ terminal. Figure 5. Three-Wire RTD Connections on One Channel Taking Measurements from Two-Wire RTD...
