Troubleshooting; Error Messages And Warning Messages - Endress+Hauser Flowphant T DTT31 Operating Instructions Manual

Troubleshooting

8 Troubleshooting
8.1

Error messages and warning messages

If an error occurs in the device, the color of the status LED changes from green to red and the
illumination of the digital display changes from white to red. A status LED flashing red and
green signals a warning. The display shows:
• E-code for errors
In the event of an error message, the measured value is uncertain.
• W-code for warnings
In the event of a warning, the measured value is reliable.
Code Explanation
E011 Device configuration faulty
E012 Error in measurement or medium temperature outside
measurable range
E013 Sensor heating defective
E019 Power supply outside specification
E015
E020 Memory error
E021
E022 Power is only supplied to the device via the
communication interface (measurement is deactivated)
E042 Output current can no longer be generated (only for 4
to 20 mA output, e.g. load at analog output too high or
open analog output)
32
Remedy
Reset device (→ Chap. 5.1.10)
Check medium temperature, return device
to Endress+Hauser where necessary
Return device to Endress+Hauser
Check operating voltage
Return device to Endress+Hauser
Check operating voltage
Check load; switch off analog output
DTT31, DTT35
Endress+Hauser