Rockwell-automation 1771-IXE Thermo/MV Input Installation Instructions Manual do Utilizador descarregar pdf (Página 12)

Thermocouple/Millivolt Input Module12

Publication 1771Ć5.49 - October 1996

Backplane Power 850mA @ 5V;

Power Dissipation 4.25 Watts maximum

Thermal Dissipation 14.5 BTU/hr

Environmental Conditions

Operating Temperature:

Rate of Change:

Storage Temperature:

Relative Humidity:

0to60

C (32 to 140

Ambient changes greater than 0.5

C per minute may temporarily

degrade performance during periods of change

-40 to 85

C (-40 to 185

5 to 95% (without condensation)

Field Wiring Arm Cat. No. 1771-WI

Keying Between 20 and 22

Between 24 and 26

Agency Certification

(when product or packaging is

marked)

• CSA certified

• CSA Class I, Division 2, Groups A, B, C, D certified

• UL listed

• CE marked for all applicable directives

User Manual Publication 1771Ć6.5.77

The accuracy of your thermocouple readings depends on:

module accuracy

lead resistance effect

accuracy of the thermocouple

Use the calibration procedure in Chapter 7 to adjust your module to

compensate for your specific environment.

Thermocouple Range Accuracy Based on Temperatures

Above 0

Column A Column B

Thermocouple

Type

Temperature

Range

Max Error @

Calibration

Temperature (25

Temperature Drift

C (0-60

F (32-140

E -270 to 1000 +0.74

C/+1.08

F +0.0400

J -210 to 1200 +0.78

C/+1.10

F +0.0423

K -270 to 1380 +0.77

C/+1.15

F +0.0640

T -270 to 400 +0.77

C/+1.17

F +0.0183

R -50 to 1770 +1.50

C/+2.11

F +0.0914

S -50 to 1770 +1.50

C/+2.31

F +0.0926

Error is specified from 0

C (32

F) to the maximum range of the thermocouple. Error

does not include thermocouple error (see appendix F). The error does include cold

junction compensation errors.

Use the calibration procedure

in Chapter 7, Module

Calibration, in your

 

  

(publication 1771Ć6.5.77) to

adust your module to

compensate for your specific

environment.

Thermocouple/Millivolt

Input Module Accuracy

1 2 ... 7 8 9 10 11 12 13 14 15 16

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