Siemens RWF55.5 User Manual page 51

Parameter Value/
selection
0.0...
Filter time constant
dF1
0.6...
Digital filter 100.0...
Temperature unit 1
2
Unit
Temperature unit
Building Technologies Division
Infrastructure & Cities Sector
Description
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)
Degrees Celsius
Degrees Fahrenheit
Unit of temperatures
User Manual RWF55...
8 Configuration ConF
51/93
CC1U7867en
05.11.2013