Diagnostics And; Troubleshooting; Diagnostic Information Via Led Display - Endress+Hauser FTW33 Betriebsanleitung

Diagnostics and troubleshooting
 14 Position for test magnet on housing
8 Diagnostics and troubleshooting
8.1

Diagnostic information via LED display

LED display on housing cover
Malfunction Possible cause
Green LED
No power supply
not lit
Overload or short-circuit in
load circuit
Red LED Ambient temperature outside of
flashing specification
Test magnet held against marking for
too long
Red LED
Internal sensor error
lit
LED display on M12 connector, can be ordered as an accessory
Malfunction Possible cause
Green LED
No power supply
not lit
Yellow LED
Internal sensor error
both lit ./ not lit
Short-circuit in load circuit
40
Corrective action
Check connector, cable and power supply
• Rectify short-circuit
• Reduce maximum load current to below 200 mA
Operate measuring device in specified temperature
range
Repeat function test
Replace device
Corrective action
Check connector, cable and power supply
• Check cable
• Reduce maximum load current to below 200 mA
• Replace device
Liquipoint FTW33
A0024532
Endress+Hauser