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P876 Rate Distance
This parameter is the rate
Measurement Units
(
P104
) over which the
material level must change before the
Rate
Value
(
P877
) is updated. If the
Rate Time
(
P875
) expires before the
Rate Distance
(
P876
) is exceeded
then the
Rate Value
(
P877
) will be updated immediately.
Default = 0.05m
P877 Rate Value
This parameter displays the current rate of change of material level, in
Measurement Units
(
P104)
per minute. It is read only.
P878 Lower Cutoff
This parameter is used to select the minimum Rate to be calculated, and can
be used to eliminate unwanted updates from effects of ripples/waves on the
surface of the material.
Filters
The following two parameters can be used to filter out unwanted changes of
level caused by a ‘rippled’ or agitated surface.
P880 Fixed Distance
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.
Option
Description
1 = Fast
level will be updated every cycle
2 = Medium
level will be updated every 8 cycles
3 = Slow (Default)
level will be updated every 16 cycles
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