Endress+Hauser Profi Bus Levelflex M FMP40 Operating Instructions Manual page 42

Operation
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5.2.3 Display symbols
The following table describes the symbols that appear on the liquid crystal display:
Sybmol Meaning
ALARM_SYMBOL
This alarm symbol appears when the device is in an alarm state. If the symbol flashes, this indicates a
warning.
LOCK_SYMBOL
This lock symbol appears when the device is locked, i.e. if no input is possible.
COM_SYMBOL
This communication symbol appears when a data transmission via e.g. HART, PROFIBUS PA or
FOUNDATION Fieldbus is in progress.
5.2.4 Key assignment
The operating elements are located inside the housing and are accessible for operation by opening
the lid of the housing.
Function of the keys
Key(s) Meaning
O V Navigate upwards in the selection list.
or
Edit numeric value within a function.
S W Navigate downwards in the selection list.
or
Edit numeric value within a function.
X Z
or Navigate to the left within a function group.
F
Navigate to the right within a function group, confirmation.
O F
and
or Contrast settings of the LCD.
S F
and
Hardware lock / unlock
O S F After a hardware lock, an operation of the device via display or
and and
communication is not possible! The hardware can only be unlocked via the display. An
unlock parameter must be entered to do so.
Levelflex M FMP40 PROFIBUS PA
Endress+Hauser