Operability; Led Display; Function Test With Test Magnet - Endress+Hauser Liquiphant FTL31 Manual

LED display

Function test with
test magnet
24

Operability

A
2
3
1
2
A M12 connector, (cable without graphic)
B Valve plug
Item Function
Green LED (gn)
1
Lit
Yellow LED (ye)
2
Lit
Red LED (rd)
3
flashing
Lit
To perform a function test, hold the test magnet against the marking on the nameplate (for at least
2 seconds). This inverts the current switching status and the yellow LED changes state. When the
magnet is removed, the switching status valid at that time is adopted.
 17 Test magnet and marking
The test magnet is not included in the delivery and can be ordered as an optional accessory
(→  28).
2
1
3
4
3
Description
Device is operational
M12 connector
Indicates the sensor state: tuning fork is covered by liquid
Valve plug / cable
Indicates the switching state:
• MAX operating mode (overfill prevention): sensor is not covered by liquid
• MIN operating mode (dry running protection): the sensor is covered by liquid
Warning/maintenance required: error can be rectified, e.g. incorrect wiring
Fault/device failure: error cannot be rectified, e.g. electronic error
Liquiphant FTL31
B
3
2 1
Endress+Hauser
1
A0016856
A0020960