Rectify Faults; How To Proceed If A Repair Is Necessary - VEGA VEGAPULS WL S 61 Betriebsanleitung

Code Cause
Text mes-
sage
•
M505 Level echo can
no longer be
No echo
detected
available
8.4

Rectify faults

Reaction when malfunction occurs
The operator of the system is responsible for
taking suitable measures to rectify faults.
Procedure for fault rectification
The first measures are:
•
Evaluation of fault messages via the adjust-
ment device
•
Checking the output signal
•
Treatment of measurement errors
Further comprehensive diagnostics options
are available with a PC with PACTware and the
suitable DTM. In many cases, the reasons can
be determined in this way and faults rectified.
Check the 4 ... 20 mA signal
Connect a multimeter in the suitable measuring
range according to the wiring plan. The following
table describes possible errors in the current
signal and helps to eliminate them:
Error Cause
•
4 ... 20 mA Fluctuating mea-
signal not sured value
stable
VEGAPULS WL S 61 • 4 ... 20 mA
Rectification
•
Clean the
antenna
•
Remove possi-
ble false echoes
•
Optimize sensor
position and
orientation
Tab. 11: Error codes
and text messages,
information on
causes as well as
corrective measures
Rectification
•
Set damping
8 Diagnosis, asset management and service
Error Cause
•
4 ... 20 mA Electrical con-
signal mis- nection faulty
sing
•
Voltage supply
missing
•
Operating
voltage too low,
load resistance
too high
•
Current sig- Sensor electro-
nal greater nics defective
than 22 mA,
less than
3.6 mA
Reaction after fault rectification
Depending on the reason for the fault and the
measures taken, the steps described in chapter
"Setup" must be carried out again or must be
checked for plausibility and completeness.
24 hour service hotline
Should these measures not be successful,
please call in urgent cases the VEGA service
hotline under the phone no. +49 1805 858550.
The hotline is also available outside normal
working hours, seven days a week around the
clock.
Since we offer this service worldwide, the
support is provided in English. The service itself
is free of charge, the only costs involved are the
normal call charges.
8.5 How to proceed if a repair is
necessary
You can find an instrument return form as
well as detailed information about the proce-
dure in the download area of our homepage:
www.vega.com. By doing this you help us carry
out the repair quickly and without having to call
back for needed information.
In case of repair, proceed as follows:
•
Print and fill out one form per instrument
•
Clean the instrument and pack it damage-
proof
•
Attach the completed form and, if need
be, also a safety data sheet outside on the
packaging
Rectification
•
Check connec-
tion, correct, if
necessary
•
Check cables for
breaks; repair if
necessary
•
Check, adapt if
necessary
•
Exchange the
instrument or
send it in for
repair
35