National Instruments FP-RTD-122 - Manual
National Instruments FP-RTD-122 – 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-122 with the holes
- Page 5 – Taking Measurements from Three-Wire RTDs; Taking Measurements from Four-Wire RTDs
- Page 6 – Taking Measurements from Two-Wire RTDs; Measuring Resistance Directly; nickel; error for the affected channels. The
- Page 7 – RTD Types
- Page 9 – Status Indicators; POWER
- Page 10 – Upgrading the FieldPoint Firmware; Isolation and Safety Guidelines; not
- Page 11 – Specifications; Input Characteristics
- Page 12 – Physical Characteristics; Power Requirements; Environmental
- Page 13 – Shock and Vibration; Safety; FCC Part 15A above 1 GHz; For EMC compliance, operate this device with
- Page 14 – CE Compliance; Refer to the Declaration of Conformity (DoC) for; Declarations of Conformity Information; at; Mechanical Dimensions; Where to Go for Support; FieldPoint network module user manual
- Page 15 – Go to
323348B-01
April 2003
©
2002–2003 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.
For patents covering National Instruments products, refer to the appropriate location:
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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
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Summary
© National Instruments Corp. 3 FP-RTD-122 and cFP-RTD-122 To install the cFP-RTD-122, refer to Figure 2 and complete the following steps: 1. Align the captive screws on the cFP-RTD-122 with the holes on the backplane. The alignment keys on the cFP-RTD-122 prevent backward insertion. 2. Press firmly ...
© National Instruments Corp. 5 FP-RTD-122 and cFP-RTD-122 Figure 3. [c]FP-RTD-122 Input Circuitry Taking Measurements from Three-Wire RTDs Three-wire RTDs often have a wire of one color (usually white, sometimes red) for positive excitation, and two wires of another color (usually red, sometimes bla...
FP-RTD-122 and cFP-RTD-122 6 ni.com Figure 5. Four-Wire RTD Connections on One Channel Taking Measurements from Two-Wire RTDs Connect either wire of a two-wire RTD to the EX+ terminal and the other wire to the COM terminal, and connect a short jumper wire between the COM and SENSE terminals. Figure ...
