Prosonic T Troubleshooting
Endress+Hauser 37
A521 new sensor type detected Reset
A661 Sensor overtemperature
A671 Linearisation incomplete Activate linearisation table
E641 no usable echo Check basic calibration
E651 level in safety distance -
risk of overspill
Error disappears when the level leaves the safety distance. Possibly reset the
lock. ["safety settings" (01) function group, "ackn. alarm" (017) function]]
W103 initialising If the message does not disappear after several seconds, replace the electronics
W153 initialising Wait a few seconds; if error is still displayed, switch the power off and on again
W512 recording of mapping Alarm disappears after a few seconds
W601 linearisation curve not
monotone
Correct table (enter monotonously increasing table)
W611 less than 2 linea-risation
points
Enter additional value pairs
W621 simulation on Switch simulation mode off ["output" (06) function group, "simulation"
(065) function]]
W681 current out of range (3.8 to
20.5 mA)
Carry out basic calibration;
check linearisation
W691 Filling noise detected, level ramp is active
Code Error description Action
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