GWR-2000 Four-wire 4-20 mA/HART
925-0335 Rev B
6 Set up with the display and adjustment module
31
The default setting is min. current 3.8 mA and max. current 20.5 mA.
The following circumstances cause interfering reflections and can influence the measurement:
●
High sockets
●
Vessel internals such as struts
●
Deflectors, etc.
Note:
A false signal suppression is only recommended with liquid applications.
A false signal suppression detects, marks and saves these false signals so that they are no lon-
ger taken into account in the level measurement.
This should be done with the lowest possible level so that all potential interfering reflections can
be detected.
Proceed as follows:
Enter the actual distance from the sensor to the product surface.
All interfering signals in this section are detected by the sensor and stored.
Note:
Check the distance to the product surface, because if an incorrect (too large) value is entered,
the existing level will be saved as a false signal. The level would then no longer be detectable in
this area.
If a false signal suppression has already been created in the sensor, the following menu window
appears when selecting "
False signal suppression
":
The instrument carries out an automatic false signal suppression as soon as the probe is uncov-
ered. The false signal suppression is always updated.
The "
Delete
" menu item is used to completely delete an already created false signal suppres-
sion. This is useful if the saved false signal suppression no longer matches the metrological
conditions in the vessel.
