48
6 Set up with the display and adjustment module
VEGAPULS SR 68 • 4 … 20 mA/HART two-wire
38294-EN-130624
4. Enter the suitable distance value in m for the empty vessel (e.g.
distance from the sensor to the vessel bottom) corresponding to
the percentage value.
5. Save settings with
[OK]
and move with
[ESC]
and
[->]
to the max.
adjustment.
Proceed as follows:
1. Select with
[->]
the menu item max. adjustment and confirm with
[OK]
.
2. Prepare the percentage value for editing with
[OK]
and set the
cursor to the requested position with
[->]
.
3. Set the requested percentage value with
[+]
and save with
[OK]
.
The cursor jumps now to the distance value.
4. Enter the appropriate distance value in m (corresponding to the
percentage value) for the full vessel. Keep in mind that the max.
level must lie below the min. distance to the antenna edge.
5. Save settings with
[OK]
The respective min. and max. measured value is saved in the sensor.
The values are displayed in the menu item "
Peak values
".
When non-contact level sensors are used, the measurement can be
influenced by the respective process conditions. In this menu item,
the measurement reliability of the level echo is displayed as dB value.
The measurement reliability equals signal strength minus noise. The
higher the value, the more reliable the measurement. With a function-
ing measurement, the values are > 10 dB.
Setup - Max. adjustment
Diagnosis/Peak value
Diagnosis - Measurement
reliability
