West Control Solutions Pro-EC44 - Control Loop(s)

Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-2 September 2014 Page 246
Thermocouple Performance
Calibration:
Complies with BS4937, NBS125 and IEC584.
Measurement
Accuracy:
0.1% of full selected input range 1LSD (Least significant display digit).
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.
Linearization
Accuracy:
Linearization better than better 0.2°C (0.05 typical) for J, K, L, N and
T thermocouples; than better than 0.5°C for other types.
Cold Junction:
If enabled, CJC error is better than 1C under operating conditions.
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 go to the
pre-set power value. High and Senor Break Alarms operate.
Resistance Temperature Detector (RTD) Input
RTD Types & Ranges
Sensor
Type
Range in C Range in F
Sensor
Type
Range in C Range in F
3-Wire
PT100
-199 to 800°C -328 to 1472°F
NI120
-80 to 240°C -112 to 464°F
Note: The Scaled Input Upper Limit and Scaled Input Lower Limit parameters,
can be used to restrict range. An optional decimal place can be displayed.
RTD Performance
Measurement
Accuracy:
0.1% of full selected input range 1LSD (Least significant display digit).
Linearization
Accuracy:
Better than 0.2°C any point (0.05°C typical).
PT100 Input complies with BS1904 and DIN43760 (0.00385Ω/Ω/°C).
Sensor Resistance
Influence:
Pt100 50Ω/lead balanced.
Automatic Lead Compensation: <0.5% of span error.
RTD Sensor Current:
150μA ±10%.
Sensor Break
Protection:
Break detected within two seconds. Process Control outputs go to the
pre-set power value. High and Senor Break Alarms operate.
DC Linear Input
DC Linear Types & Ranges
Input
Type
Ranges Input
Type
Ranges
mA DC
0 to 20mA 4 to 20mA
V DC
0 to 5V 1 to 5V
mV DC
0 to 50mV 10 to 50mV 0 to 10V 2 to 10V
Potentiometer
≥100Ω