Rockwell-automation 1734-IT2I Thermocouple and RTD Input Module User M Manual de usuario descargar pdf (Pagina 49)

39 Publication 1734-UM004F-EN-E - December 2012

Chapter

Calibrate Your Module

Overview

Use this chapter to calibrate the thermocouple/mV module or the RTD input

module. Refer to the table for a summary of what is covered.

When and How to Calibrate

Your Module

Your module is shipped to you already calibrated. If a calibration check is

required, the module must be in a POINT I/O system.

Perform module calibration periodically, based on your application. Module

calibration may also be required to remove module error due to aging of

components in your system.

Calibration Method

Perform calibration through the I/O configuration software, such as

RSNetWorx and EDS files. If the EDS files are not in your software, get them

online at www.ab.com/networks/eds/

Tools and Equipment

Required to Calibrate

Your Thermocouple Module

To calibrate your thermocouple module, you need the following tools and

equipment.

Task Page

When and How to Calibrate Your Module 39

Calibration Method 39

Tools and Equipment Required to Calibrate Your Thermocouple Module 39

Calibrate the Thermocouple Input Module 40

Input (mV) Calibration 42

Cold Junction Compensation Calibration 45

Tools and Equipment Required to Calibrate Your RTD Module 48

Calibrate the RTD Input Module 48

Tool or Equipment Description

Precision Resistors High precision resistors:

1000 Ω, 0.05%, 5 ppm/

3000 Ω, 0.05%, 5 ppm/

Calibrated resistor Decade Box, 0.05%

Precision Voltage Source +100 mV, 1 mV resolution - accuracy +

3 μV or better

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Rockwell-automation 1734-IT2I Thermocouple and RTD Input Module User M Manual de usuario Pagina 49