Diagnostics and troubleshooting Liquiphant FTL51B
42 Endress+Hauser
Upper alarm frequency
Upper warning frequency
Lower alarm frequency
Battery status
Temperature
Min. electronics temperature
Max. electronics temperature
9.2 Heartbeat Verification
The "Heartbeat Verification" module contains the Heartbeat Verification wizard which
carries out the verification of the current device status and creates the Heartbeat
Technology verification report:
• The wizard can be used via the SmartBlue app.
• The wizard takes the user through the entire process of creating the verification report.
• Displays the operating hours counter and the temperature drag indicator.
• If the vibration frequency of the fork increases, a corrosion warning appears.
• The order configuration of the air's vibration frequency is shown on the verification
report. An increased vibration frequency indicates corrosion. A reduced vibration
frequency signals deposits or that the medium is covering the sensor. Deviations
between the current vibration frequency and the vibration frequency upon delivery can
be caused by the process temperature and process pressure.
9.3 Recurrent testing for SIL/WHG (German Water
Resources Act) devices
1)
The "SIL Prooftest", "WHG Prooftest" and "SIL/WHG Prooftest" modules contain a wizard for
recurrent testing. This is required at appropriate intervals for the following applications:
SIL (IEC61508/IEC61511), WHG (German Water Resources Act):
• The wizard can be used via the SmartBlue app.
• The wizard takes the user through the entire process of creating the verification report.
• The verification report can be saved as a PDF file.
10 Diagnostics and troubleshooting
The device indicates warnings and faults via Bluetooth in the SmartBlue app and via the
LEDs on the electronic insert. All the device warnings and faults are for information
purposes only and do not have a safety function. The faults diagnosed by the device are
displayed in the SmartBlue app in accordance with NE107. Depending on the diagnostic
message, the device behaves as per a warning or fault condition.
The device behaves in accordance with NAMUR Recommendation NE131 "NAMUR
standard device requirements for field devices for standard applications".
1) Only available for devices with SIL or WHG approval
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