Endress+Hauser Proline Prowirl 73 - Troubleshooting; Troubleshooting Instructions

Proline Prowirl 73 Troubleshooting
Endress+Hauser 63
9 Troubleshooting
9.1 Troubleshooting instructions
Always start troubleshooting with the following checklist if faults occur after commissioning or
during operation. This takes you directly (via various queries) to the cause of the problem and the
appropriate remedial measures.
Check the display
No display visible and no
output signals present
1. Check the supply voltage  Terminals 1, 2
2. Measuring electronics defective  order spare parts ä 72
No display visible but
output signals are present
1. Check whether the ribbon-cable connector of the display module is correctly plugged
into the amplifier board ä 73
2. Display module defective  order spare parts ä 72
3. Measuring electronics defective  order spare parts ä 72
Display texts are in a
foreign language.
1. Switch off power supply.
2. Press the
P
keys simultaneously and switch on the measuring device again.
The display text will appear in English and is displayed at 50% contrast.
Measured value indicated,
but no signal output at the
current or pulse output
Measuring electronics defective  order spare parts ä 72
Æ
Error messages on display
Errors which occur during commissioning or operation are displayed immediately or once the set delay time has elapsed
(ä 174, ALARM DELAY function). Error messages consist of a variety of icons. The meanings of these icons are as
follows (example):
– Type of error: S = System error, P = Process error
– Error message type: $ = Fault message, ! = Notice message
– DSC SENS LIMIT = Error designation (device being operated near application limits)
– 03:00:05 = Duration of error to occur (in hours, minutes and seconds), display format, OPERATION HOURS function
ä 174
– #395 = Error number
!
Note!
• See the information on ä 38
• The measuring system interprets simulations and positive zero return as system errors, but displays them as notice
messages only.
Error message on display System error (device error) ä 64
Process error (application error) ä 68
Æ
Other errors (without error message)
Some other error has
occurred.
Diagnosis and remedial measures ä 69