West Control Solutions ProVU 4 - Manual (Page 173)

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
Page 172 Specifications 59407, Issue 1 – March 2008
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.
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
Compensation: 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 Scale Range Upper Limit and Scale Range Lower Limit parameters, can be used to
restrict range. An optional decimal place can be displayed up to 999.9°C/F
RTD Performance
Measurement
Accuracy: 0.1% of span 1LSD.
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:
150A (approximately).
Sensor Break
Protection:
Break detected within two seconds. Process Control outputs go to the
pre-set power value. High and Senor Break Alarms operate.