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Accuracy specifications – Spectrum Controls 1762sc-IF8U User Manual

Page 32

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A-4

MicroLogix™ 1200 IO Universal Input Module

User's Manual Pub. 0300243‐02 Rev. B 

Accuracy Specifications

Specification Value
Thermocouple
Inputs
(25°C Ambient)

Linearization per ITS-90
System accuracy at 25°C (4 and 17 Hz filters):
Type J (-180°C to 1200°C): ± 0.6 degrees C maximum
Type J (-210°C to -180°C): ± 0.8 degrees C maximum
Type N (-160°C to 1300°C): ± 1 degrees C maximum
Type N (-210°C to -160°C): ± 1.8 degrees C maximum
Type T (-190°C to 400°C): ± 1 degrees C maximum
Type T (-270°C to -190°C): ± 7 degrees C maximum
Type K (-200°C to 1370°C): ± 1 degrees C maximum
Type K (-270°C to -200°C): ± 10 degrees C maximum
Type E (-200°C to 1000°C): ± 0.6 degrees C maximum
Type E (-270°C to -200°C): ± 5 degrees C maximum
Type S and R: ± 2.8 degrees C maximum
Type C: ± 1.8 degrees C maximum
Type B: ± 3.3 degrees C maximum

Thermocouple
Inputs
(-20 to 60°C
Ambient)

System accuracy at -20-60° C (4 and 17 Hz filters):
Type J (-180°C to 1200°C): ± 1.2 degrees C maximum
Type J (-210°C to -180°C): ± 1.6 degrees C maximum
Type N (-200°C to 1300°C): ± 2 degrees C maximum
Type N (-210°C to -200°C): ± 3.6 degrees C maximum
Type T (-230°C to 400°C): ± 2 degrees C maximum
Type T (-270°C to -230°C): ± 14 degrees C maximum
Type K (-225°C to 1370°C): ± 2 degrees C maximum
Type K (-270°C to -225°C): ± 20 degrees C maximum
Type E (-210°C to 1000°C): ± 1.2 degrees C maximum
Type E (-270°C to -210°C): ± 10 degrees C maximum
Type S and R: ± 6 degrees C maximum
Type C: ± 4 degrees C maximum
Type B: ± 7 degrees C maximum

The above limits do not include the cold junction compensation
or sensor error. They must be included (added) to determine
overall thermocouple accuracy.

CJC accuracy

± 3.0 degrees C maximum Correlation between reading and target
terminal

CJC
Repeatability

± 0.2 degrees C max for 0-60C,
± 0.4 degrees C max for full range

CJC Sensor
accuracy

± 1.0 degrees C maximum Reading/Conversion of the sensor