Lightning Audio 7532 - Manual (Page 80)

Troubleshooting Radar Tank Gauge
80 Installation and Operations Manual
A270 custody switch
undef
check position
switch for custody transfer
may be defective
check position of custody
switch
exchange electronics
# inconsistency between phase
and amplitude evaluation
inconsistent microfactor
inconsistent index mapping
check basic calibration
check mounting calibration
check echo quality
reset history "555"
check stilling pipe
diameter
switch off autocorrection
A272 electronics defect
amplifier
inconsistency in amplification exchange electronics
W275 electronics defect
factory setting
offset drift of A/D commuter exchange electronics
W511 no factory
calibration ch1
factory calibration has been
deleted
record new factory
calibration
A512 recording of
mapping please wait
mapping active wait some seconds until
alarm disappears
W601 linearization ch1
curve not monotone
linearization not
monotonously increasing
correct linearization table
W611 less than 2
linearization points
for channel 1
number of entered
linearization points < 2
correct linearization table
W621 simulation ch. 1 on simulation mode is active switch off simulation mode
E641 no usable echo
channel 1
check calibr.
echo lost due to application
conditions of built up on
antenna
check installation;
optimize orientation of
antenna; clean antenna
E651 level in safety
distance - risk of
overspill
level in safety distance alarm will disappear as
soon as level leaves safety
distance;
A671 linearization ch1 not
complete, not
usable
linearization table is in edit
mode
activate linearization table
W681 current ch1 out of
range
current out of range (3,8 mA
... 21,5 mA)
check calibration and
linearization
Code Description Possible cause Remedy
Table 3: System error messages