Diagnostics And Troubleshooting; General Troubleshooting; Diagnostic Information Via Light Emitting; Diodes - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Diagnostics and troubleshooting

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10 Diagnostics and troubleshooting
The device indicates warnings and errors via Bluetooth in the SmartBlue app and via the
status LED. All warnings and errors are for information purposes only and do not perform
a safety function. The errors which the device diagnoses are displayed in the SmartBlue
app in accordance with NE107.The device behaves as in a warning or fault situation in
accordance with the diagnostic message. It is necessary to distinguish between the
following types of errors here:
The device behaves in accordance with NAMUR Recommendation NE131 "NAMUR
standard device requirements for field devices for standard applications".
10.1

General troubleshooting

10.2 Diagnostic information via light emitting diodes
Malfunction
LED indicator on housing cover
Green LED
not lit
Red LED
flashing
Red LED
lit
LED indicator on M12 connector (accessory)
Green LED
not lit
Yellow LED
both lit / not lit
SmartBlue
Device is not visible in the
livelist
Device is visible in the livelist
but cannot be accessed via
SmartBlue
Login via SmartBlue not
possible
Possible cause Corrective action
No power supply Check connector, cable and power supply
Overload or short-circuit • Rectify short-circuit
in load circuit • Reduce maximum load current to below 200 mA
Ambient temperature Operate measuring device in specified temperature
outside of specification range
Test magnet held against
Repeat functional test
marking for too long
Internal sensor error Replace device
No power supply Check connector, cable and power supply
Internal sensor error • Check cable
Short-circuit in load • Reduce maximum load current to below 200 mA
circuit • Replace device
No Bluetooth connection • Enable Bluetooth® function on smartphone or
tablet
• Bluetooth® function of sensor disabled, perform
recovery sequence
• The device is already connected with another
smartphone/tablet
Android end device • Is the location function permitted for the app,
was it approved the first time?
• GPS or positioning function must be activated for
certain Android versions in conjunction with
Bluetooth®
• Activate GPS - close the app fully and restart -
enable the positioning function for the app
Apple end device • Log in as standard
• Enter user name "admin"
• Enter initial password (device serial number)
paying attention to lower/upper case
Device is being put into Enter initial password (device serial number) and
operation for the first change. Pay attention to lower/upper case when
time entering the serial number.
Liquiphant FTL51B
Endress+Hauser