Thermocouple Performance; Resistance Temperature Detector (Rtd); Rtd Ranges Available - WEST P8700 User Manual

Thermocouple Performance

Calibration:
Measurement
Accuracy:
Linearisation
Accuracy:
Cold Junction
Compensation:
Temperature
Stability:
Supply Voltage
Influence:
Relative Humidity
Influence:
Sensor Resistance
Influence:
Sensor Break
Protection:

Resistance Temperature Detector (RTD)

RTD Ranges Available

Range Min
in °C
-128.8
-199
Note:
Scale Range Upper Limit and Scale Range Lower Limit Configuration Mode parameters
can be used to restrict range.
Page 130
1 1
/ -DIN, /
4 8
Complies with BS4937, NBS125 and IEC584.
±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.
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.
Better than ±0.7°C under reference conditions.
Better than ±1°C under operating conditions.
0.01% of span/°C change in ambient temperature.
Negligible.
Negligible.
Thermocouple 100Ω: <0.1% of span error.
Thermocouple 1000Ω: <0.5% of span error.
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.
Range Max Range Min
in °C in °F
537.7 -199.9
800 -328
Specifications
1
-DIN & / - DIN Controllers & Indicators - Product Manual
16
Range Max
in °F
999.9
1472
Resolution
0.1°
1° (default)
59305, Issue 5 – March 2005