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- DIN Controllers & Indicators - Product Manual
59305, Issue 5 – March 2005 Specifications Page 131
RTD Performance
Type:
Three-wire Pt100.
Calibration:
Complies with BS1904 and DIN43760 (0.00385Ω/Ω/°C).
Measurement
Accuracy:
±0.1% of span ±1LSD.
Linearisation
Accuracy:
Better than ±0.2°C any point, any 0.1°C range (±0.05°C typical). Better
than ±0.5°C any point, any 1°C range.
Temperature
Stability:
0.01% of span/°C change in ambient temperature.
Supply Voltage
Influence:
Negligible.
Relative Humidity
Influence:
Negligible.
Sensor Resistance
Influence:
Pt100 50Ω/lead: <0.5% of span error.
Lead Compensation:
Automatic scheme.
RTD Sensor Current:
150µA (approximately).
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 has gone over-range.
DC Linear
DC Linear Ranges Available
0 to 20mA 0 to 50mV 0 to 5V
4 to 20mA (default) 10 to 50mV 1 to 5V
0 to 10V
2 to 10V
DC Linear Performance
Scale Range Upper Limit:
–1999 to 9999. Decimal point as required.
Scale Range Lower Limit:
–1999 to 9999. Decimal point as for Scale Range Upper Limit.
Minimum Span:
1 display LSD.
Measurement Accuracy:
±0.1% of span ±1LSD.
Temperature stability:
0.01% of span/°C change in ambient temperature.
Supply Voltage Influence:
Negligible.
Relative Humidity
Influence:
Negligible.
Input Protection:
Up to 10 times maximum span of selected input connection.
Sensor Break Protection:
Applicable for 4 to 20mA, 1 to 5V and 2 to 10V ranges only.
Break detect approx two seconds. Control outputs turn OFF (0%
power); Limit outputs turn off (goes into Exceed condition); Alarms
operate as if process variable is under-range.
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