Diagnostics and troubleshooting
Prosonic M FMU44 HART
34
Hauser
10.3 Types of error
Alarm (A), symbol is lit continuously
The output signal adopts a value that can be specified by the
Output on alarm (010)
function.
• MAX: 110 %, 22 mA
• MIN: -10 %, 3.8 mA
• Hold: the last value is held
• User-specific value
Warning (W), symbol flashes
Device continues measuring, error message is displayed
Alarm/warning (E)
Define the error message as an alarm or warning
10.4 Diagnostics list
10.4.1 Error codes
A102, A110, A152, A160 = checksum error
Perform a reset
Alarm persists after a reset, replace the electronics
A106 = Downloading
Wait; the message disappears after the downloading sequence
A116 = Download error
• Check the connection
• Start downloading again
A111, A113, A114, A115, A121, A125, A155, A164, A171 = Electronics defective
• Perform a reset
• Check system for EMC
• If the alarm persists after a reset, replace the electronics
A231 = Sensor defect
• Check connection
• Change sensor
A502 = Sensor not recognized
Replace the sensor and/or electronics
A512 = Recording of mapping
Alarm ends after a few seconds
A521 = New sensor type identified
Perform a reset
A671 = Linearization not complete, not usable
Perform the basic setup
E281 = Wire breakage at temperature sensor
Replace the sensor and/or electronics
E641 = No usable echo
Check the basic setup
E651 = Level in safety distance, risk of overspill
• The error disappears as soon as the level is no longer in the safety distance
• Acknowledge alarm
Safety settings (01)
function group →
Acknowledge alarm (017)
function
E661 = Sensor temperature too high