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Building Technologies Division
User Manual RWF55...
CC1U7867en
Infrastructure & Cities Sector
8 Configuration ConF
05.11.2013
Parameter Value/
selection
Description
Filter time constant
dF1
Digital filter
0.0...
0.6...
100.0...
Is used to adapt the digital 2nd order input filter (time in s; 0 s = filter off)
If the input signal changes abruptly, about 26% of the change are captured
after a time corresponding to the filter time constant
dF
(2 x
dF
: approx. 59%;
5 x
dF
: approx. 96%)
When the filter time constant is great:
- Great attenuation of interference signals
- Slow response of actual value display to changes of the actual value
- Low limit frequency (low-pass filter)
Temperature unit
Unit
Temperature unit
1 Degrees
Celsius
2
Degrees
Fahrenheit
Unit of temperatures