Beckett RWF40 Manual - Manual (Page 55)

HVAC Products CC1B7865en 01.09.2005 55/57
11. Technical data
Resolution: > 15 bit
Measuring accuracy
Ambient temperature error
Resistance thermometer:
≤ 0.05 % ≤ 50 ppm / K
Thermocouples:
≤ 0.25 %
≤ 100 ppm / K
Standard signals:
≤ 0.1 % ≤ 100 ppm / K
Values include linearization tolerances.
Transducer Probe
break Short-circuit
Resistance thermometer X X
Thermocouples X -
DC 0…10 V - -
DC 0…20 mA - -
DC 4…20 mA X X
- = is
not detected
X = is detected, and «–1999» appears on the display
Ö
Chapter 10 «What to do if...»
Permissible ambient temperature range:
-20…+50 °C
Permissible storage temperature range:
-40…+70 °C
Climatic conditions:
Relative humidity
≤ 95 % (noncondensing)
Degree of protection to EN 60529:
Front IP 65
Rear IP 20
Electromagnetic compatibility (EMC):
To NAMUR recommendation NE 21, EN 50 081 part 1, EN 50 082 part 2
11.3.1 Measuring accuracy
11.3.2 Monitoring of measuring circuit
11.3.3 Environmental conditions