Vega VEGAPULS 62 - Measurement Errors During Emptying; Emptying Errors and Rectification; 24 Hour Service Hotline

73
9 Diagnosis, asset management and service
VEGAPULS 62 • Probus PA
36505-EN-181127
Fault description Cause Rectication
10. Measured value
jumps to ≥ 100 % or
0 m distance
Level
time
0
•
Level echo is no longer detected in the
close range due to foam generation or
false signals in the close range. The
sensor goes into overll protection mode.
The max. level (0 m distance) as well as
the status message "Overll protection"
are output.
•
Check measuring site: Antenna must
protrude out of the socket
•
Remove contamination on the antenna
•
Use a sensor with a more suitable
antenna
Measurement error during emptying
Fault description Cause Rectication
11. Measured value
remains unchanged
in the close range
during emptying
Level
time
0
•
False signal larger than the level echo
•
Level echo too small
•
Eliminate false signal in the close range.
Check: Antenna must protrude from the
socket
•
Remove contamination on the antenna
•
In case of interferences due to installa-
tions in the close range: Change polarisa-
tion direction
•
After eliminating the false signals, the
false signal suppression must be deleted.
Carry out a new false signal suppression
12. Measured value
jumps towards 0 %
during emptying
Level
time
0
•
Echo from the tank bottom larger than the
level echo, for example, with products with
ε
r
< 2.5 oil-based, solvents
•
Check parameters Medium type, Vessel
height and Floor form, adapt if necessary
13. Measured value
jumps sporadically
towards 100 % dur-
ing emptying
Level
time
0
•
Varying condensation or contamination on
the antenna
•
Carry out false signal suppression or
increase false signal suppression in the
close range by editing
•
With bulk solids, use radar sensor with
purging air connection
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.
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 oer 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.
Reaction after fault recti-
cation
24 hour service hotline