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- DIN Controllers & Indicators - Product Manual
Page 130 Specifications 59305, Issue 5 – March 2005
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 detect approx two seconds. Control outputs turn OFF (0% power);
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.
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