Endress+Hauser Levelflex M FMP40 Brief Operating Instructions page 26

Operation
4.2.3 Display symbols
The following table describes the symbols that appear on the liquid crystal display:
Symbol 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.
SIMULATION_SWITCH_ENABLE
This communication symbol appears when simulation in FOUNDATION Fieldbus is enabled via the DIP
switch.
4.2.4 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)
O
or
S
or
X
F
O
and
or
S
and
O S
and
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Meaning
V
Navigate upwards in the selection list.
Edit numeric value within a function.
W
Navigate downwards in the selection list.
Edit numeric value within a function.
Z
or Navigate to the left within a function group.
Navigate to the right within a function group, confirmation.
F
Contrast settings of the LCD.
F
Hardware lock / unlock
F
After a hardware lock, an operation of the device via display orcommunication is not
and
possible! The hardware can only be unlocked via the display. An unlock parameter
must be entered to do so.
Levelflex M FMP40 FOUNDATION Fieldbus
Endress+Hauser