Siemens SITRANS LG250 Operating Instructions Manual page 48

Display - Backlight
Diagnostics - Device
status
Diagnostics - Peak values
Distance
Diagnostics - Peak values
Measurement certainty
48
The default setting for the displayed value 2 is the electronics tem-
perature.
The integrated background lighting can be switch off via the adjust-
ment menu. The function depends on the height of the supply voltage,
see "Technical data".
The lighting is switched on in delivery status.
In this menu item, the device status is displayed.
The respective min. and max. measured value is saved in the sen-
sor. The two values are displayed in the menu item "Peak values,
distance".
If you have selected interface measurement under the menu item
"Setup - Application", the peak values of the interface measurement
are displayed in addition to the peak values of the level measurement.
In another window you can carry out a reset of the two peak values
separately.
The respective min. and max. measured values are saved in the
sensor. The two values are displayed in the menu item "Peak values,
measurement certainty".
The measurement can be influenced by the process conditions. In
this menu item, the measurement certainty of the level measurement
is displayed as percentage value. The higher the value, the more reli-
able the measurement. Values > 90 % indicate reliable measurement.
If you have selected interface measurement under the menu item
"Setup - Application", the peak values of the interface measurement
are displayed in addition to the peak values of the level measurement.
SITRANS LG250 - Operating Instructions PBD-51041388