LST300 | COMPACT ULTRASONIC LEVEL TRANSMITTER | LST300–EN REV. E
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The process display appears when the device is switched on. It
shows information about the device and the present process
values.
The way in which the present process values (1) are shown can
be adjusted at the configuration level.
Description of symbols
Symbol Description
Call up information level.
When Autoscroll mode is enabled, a ↻ symbol appears here and
the operator pages are automatically displayed one after the
other.
Call up configuration level.
The device is protected against changes to the parameter
settings.
Q Display of the current flowrate
Totalizer status in forward direction
Totalizer status in reverse direction
Switching to the information level (operator menu)
On the information level, the operator menu can be used to
display diagnostic information and select which operator pages
to display.
1 Press
to switch to the information level.
2 Press or to select a submenu.
3 Press to confirm your selection
Menu Description
... / Operator Menu
Diagnostics Select the "Diagnostics" submenu. See also
Select the operator page to be displayed
Select the operator page to be displayed
Select the operator page to be displayed
Select the operator page to be displayed
Menu Description
Autoscroll Initiates automatic switching of the operator
pages on the process display when “Multiplex
Mode” is enabled.
Signals View Select the "Signals View" submenu (for service
only).
Error messages on the LCD display
In case of an error, a message consisting of an icon and text
appears at the bottom of the process display. The displayed
text indicates where the error has occurred.
The error messages are divided into the following four groups:
Symbol Description
Error / Failure
Functional check
Out of specification
Maintenance required
Additionally, an error message indicates one of the following
areas where the error has occured:
Area Description
Electronics Error / Alarm of the electronics.
Sensor Error / Alarm of the flow meter sensor
Status Alarm due to the present device status
Operation Error / Alarm due to the present operating conditions
Invoking the error description
1 Press
to switch to the information level.
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