Endress+Hauser Nivector FTI26, Operating Instructions Manual

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Nivector FTI26 Diagnostics and troubleshooting
Hauser 21
8 Diagnostics and troubleshooting
8.1 Diagnostic information via LED indicator
LED indicator on housing cover
Malfunction Possible cause Corrective action
Green LED
not lit
No power supply Check plug, cable and power supply.
Red LED
flashing
Overload or short-circuit in load circuit
• Clear the short-circuit.
• Reduce maximum load current to below
200 mA.
Ambient temperature outside of specifica-
tion Operate measuring device in specified temperature
range.
Calibration error Reset calibration and perform calibration again.
Test magnet held against marking for too
long
Repeat function test.
Device incorrectly connected Remove plug and check connection.
Simulation active Deactivate simulation.
Red LED
lit
Internal sensor error Replace device.
LED indicator on M12 plug, can be ordered as an accessory
Malfunction Possible cause Corrective action
Green LED
not lit
No power supply Check plug, cable and power supply.
Yellow LED
both lit /
not lit
Internal sensor error
Short-circuit in load circuit
• Check cable.
• Replace device.