Manual

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- DIN Controllers & Indicators - Product Manual
59305, Issue 7 – March 2014 Specifications Page 161
Thermocouple Performance
Calibration:
Complies with BS4937, NBS125 and IEC584.
Measurement
Accuracy:
0.1% of full range span 1LSD.
NOTE: Reduced performance for B Thermocouple from 100 to 600°C.
NOTE: PtRh 20% vs PtRh 40% Thermocouple accuracy is 0.25% and has
reduced performance below 800°C.
Linearisation
Accuracy:
Better than 0.2C any point, for 0.1° resolution ranges (0.05C typical).
Better than 0.5C any point, for 1° resolution ranges.
Cold Junction
Compensation:
Better than 0.7C under reference conditions.
Better than 1C under operating conditions.
Temperature
Stability:
0.01% of span/C change in ambient temperature.
Supply Voltage
Influence:
Negligible.
Relative Humidity
Influence:
Negligible.
Sensor Resistance
Influence:
Thermocouple 100Ω: <0.1% of span error.
Thermocouple 1000Ω: <0.5% of span error.
Sensor Break
Protection:
Break detected within two seconds. Process Control outputs turn OFF
(0% power); Valve Control “Close” outputs turn on; Limit outputs turn off
(goes into Exceed condition); Alarms operate as if the process variable is
over-range.
Resistance Temperature Detector (RTD)
RTD Ranges Available
Range Min
in C
Range Max
in C
Range Min
in F
Range Max
in F
Resolution
-128.8
537.7
-199.9
999.9
0.1°
-199
800
-328
1472
1° (default)
Note:
Scale Range Upper Limit and Scale Range Lower Limit Configuration Mode parameters
can be used to restrict range.