Lamtec F300K Series Manual page 68

7 Operation
Frequency Range
With selection problems in particular, you could also adjust the frequency settings. Normally,
a high frequency reduces the sensitivity against the background radiation. As displayed on the
bar, you can see which one of the frequency ranges has sufficient flame radiation available
with the selected settings and can choose one of these.
You will find more information on the values in the following table:
Icon
05:
06:
04:
*
Name
Switch-off
level
Frequency
range
Frequency
band
See the frequency ranges in section 7.3.3.2 Signal simulator
67
Value Explanation
0 ... 2500 mV Switching threshold "flame OFF"
Lower limit frequency as of which the signal
*
10 ... 160 Hz is analysed.
5 ... 80 Hz
S, T Frequency band
S = standard
T = low frequency