P712 ECHO LOCK SAMPLING
The sampling criterion sets the number of consecutive echoes appearing above or below the
echo currently locked onto, that must occur before the measurements are validated as the new
reading (for Echo Lock P711 values: 1 or 2).
P711 value P712 preset value
1, max verification 5:5
2, material agitator 5:2
e.g. : P711 = 2, material agitator
P712 = 5:2
a new reading will not be validated unless 5 consecutive measurements higher or
2 consecutive measurements lower than the current readings occur.
values: x.y x= # of ‘above’ echoes y = # of ‘below’ echoes
Resetting P711 returns P712 to the respective preset values.
P713 ECHO LOCK WINDOW
Use this feature to adjust the new measurement change permitted before Echo Lock is applied.
The Echo Lock Window is a "time window" (in msec) placed about the echo used to derive
the Reading. When a new measurement falls within the window, the window is recentered
and the new Reading is calculated. Otherwise, the new measurement is verified by Echo
Lock (P711) before the DPL + updates the reading.
When "0" is entered (preset), the window is automatically calculated based on the Max
Fill / Empty Rate ( P700 / P701). This calculation is automatically performed when
Measurement Response (P003) is altered. See
Measurement Response.
For slower Measurement Response (P003) values the calculated Echo Lock Window is
narrow. For faster values the window becomes increasingly wider,
( When "TURBO" is selected the window is normally wide open ).
values: 0.000 to 9999
97/04/11
TECHNICAL REFERENCE
PL-508 58
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