Calibrating thermocouples, Preparations – Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B User Manual

Page 383

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Publication 900-UM007D-EN-E - January 2011

Calibration

C-5

Calibrating Thermocouples

Calibrate according to the type of thermocouple, thermocouple 1 group (Input
Types 5, 7, 11, 12, 15), and thermocouple 2 group (Input Types 6, 8, 9, 10, 13,
14, 16, 17, 18, 19, 20, 21, 22, 24, 25).

When calibrating, do not cover the bottom of the controller. Also, do not
touch the input terminals (pin numbers 4 and 5 on the 900-TC16, 19 and 20
on the 900-TC8, and 11 and 12 on the 900-TC32) or the compensating
conductor on the controller.

Preparations

Figure C.4

— Set the Cold Junction Compensator

Input Power Supply

Compensating Conductor

Cold Junction
Compensator

0

°

C/32

°

F

900-TC8

STV

19

20

1

2

9

10

Input Power Supply

Compensating Conductor

0

°

C/32

°

F

900-TC16

STV

4

5

Cold Junction
Compensator

900-TC8

900-TC16

900-TC32

1

2

Input Power Supply

Compensating Conductor

0

°

C/32

°

F

900-TC32

STV

11

12

Cold Junction
Compensator

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