Measured Value Accuracy; Measured Value Circuit Monitoring; Environmental Conditions - Siemens RWF40 Series User Manual

11.3.1 Measured value accuracy

11.3.2 Measured value circuit monitoring

11.3.3 Environmental conditions

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Resolution: > 15 bit
Measured value accuracy
Resistance thermometer:
≤ 0.05 %
Thermocouples:
≤ 0.25 %
Standard signals:
≤ 0.1 %
The values include the linearization tolerances.
Transducer
Resistance thermometer
Thermocouples
DC 0...10 V
DC 0...20 mA
DC 4...20 mA
- = is not detected
X = is detected, and «–1999» appears on the display
Chapter 10 «What to do if...»
Permissible ambient temperature range:
-20...+50 °C (short-time up to 60 °C)
Permissible storage temperature range:
-40...+70 °C
Climatic conditions:
Relative humidity ≤ 95 %, (non-condensing)
Degree of protection to EN 60529:
Front IP65
Rear IP20
Electromagnetic compatibility (EMC):
To NAMUR recommendation NE 21, EN 50 081 part 1, EN 50 082 part 2
CC1B7865E
11. Technical data
Ambient temperature error
≤ 50 ppm / K
≤ 100 ppm / K
≤ 100 ppm / K
Probe break Short-circuit
X
X
-
-
X
February 10, 2000
X
-
-
-
X
Landis & Staefa Division