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Filters
The following two parameters can be used to filter out unwanted changes of
level caused by a ‘rippled’ or agitated surface.
P880 Gate Mode
This parameter determines the operation of the gate that is established
around the echo being processed and is used to track the echoes movement
and update the level measurement indication on the display. Please consult
Pulsar for further information and assistance on changing the value of this
parameter, Default = 0 (Fixed)
P881Fixed Distance
This parameter determines the width of gate to be used in tracking an echo
and under normal circumstances will not require changing, but it can be
increased in the cases where the surface is moving extremely fast (in excess
of 10m/min) to ensure smooth processing of the changing level.
P882 Process Filter
This parameter determines the number of ‘cycles’ that will be taken before a
change in level is processed and the display updated.
P884 Peak Percentage
When P102 = 2 (Solids), this parameter can be used to determine the point
at which the measurement is taken, within the established gate of the
selected echo, in order to compensate for any error that maybe caused by
“angles of repose” presented by the way the material settles. Please consult
Pulsar, for further information and assistance on changing the value of this
parameter.
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