Precision Digital PD6200 - Manual (Page 75)

Model PD6200 Analog Input Rate/Totalizer Instruction Manual
75
Noise Filter (filter)
The noise filter is available for unusually noisy signals that cause an un-
stable process variable display. The noise filter averages the input signal
over a certain period. The filter level determines the length of time over
which the signal is averaged. The filter level can be set between 2 and
199. The higher the filter level, the longer the averaging time and so the
longer it takes the display to settle to its final value. Setting the filter level
to zero disables the filter function.
Noise Filter Bypass (bypass)
The noise filter bypass changes the behavior of the meter so that small
variations in the signal are filtered out but large abrupt changes in the
input signal are displayed immediately. The bypass value determines the
minimum amount of signal change to be displayed immediately. All sig-
nal changes smaller than the bypass value are filtered or averaged by
the meter. The noise filter bypass may be set between 0.1 and 99.9% of
full scale.