Commissioning; Function Check; Led Display - Endress+Hauser Liquiphant FTL31 Anleitung

Commissioning

7 Commissioning
7.1

Function check

Before commissioning your measuring point, ensure that the post-installation and post-
connection checks have been performed.
• "Post-installation check" checklist →  53
• "Post-connection check" checklist →  59
The function of the tuning fork can be easily tested by immersing the tuning fork in a
vessel containing water.
7.2

LED display

A
2
3
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
60
1
4
1
2
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
B
2
3
3
2
Liquiphant FTL31
1
1
A0016856
Endress+Hauser