Siemens SITRANS LG270 Operating Instructions Manual page 35

Display - Backlight
Diagnostics - Device
status
Diagnostics - Peak val-
ues, Distance
Diagnostics - Peak values
Measurement certainty
PBD-51041071
The default setting for the display format is "Automatic".
The integrated background lighting can be switched off via the
adjustment menu. The function depends on the strength of the supply
voltage, see "Technical data".
In delivery status, the lighting is switched on.
In this menu item, the device status is displayed.
When the instrument displays a failure message, you can here get
detailed information on the failure reason.
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 measure-
ment is displayed in mV. The higher the value, the more reliable the
measurement.
SITRANS LG270 - Operating Instructions
35