Parameter assignment
7.22 Measurement verification (P709 to P713)
SITRANS Probe LR with mA/HART
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Operating Instructions, 05/2019, A5E32337711-AC
Example:
●
Set P711 to 2 (material agitator)
●
The preset values for P712 in this case are 5:2
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Result: a new reading will not be validated unless 5 consecutive measurements higher or
2 consecutive measurements lower than the current reading occur.
7.22.4
P713 Echo lock window
Note
The echo lock window is stored as standard samples, but displayed in units based on P005.
Any value entered for P713 will be rounded to the nearest sample.
Adjusts the size of the Echo Lock Window. This value is automatically altered when
Measurement Response (P003), Maximum Fill Rate (P700), or Maximum Empty Rate
(P701), are altered.
Values
Range
0.000 to 9999
Default
0.000
Altered by
P003 Measurement response
Related parameters
P005 Units
P711 Echo lock
The Echo Lock Window is a "distance window"
1)
, centered on the echo used to derive the
reading. When a new measurement falls within the window, the window is re-centered and
the new reading calculated. Otherwise, the new measurement is verified by Echo Lock
(P711) before the reading is updated.
When the value is 0, the window is automatically calculated after each measurement. The
value is fixed at 0 if Echo Lock (P711) is set to 3.
●
For slower Measurement Response values (P003), the window is narrow.
●
For faster P003 values the window becomes progressively wider.
1)
Units are those set in P005.