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Service Manual
Third edition, June 1997
9.3.4 Warning “Clean antenna on tank XXX”
If the signal strength is reduced due to a thick layer of cargo or other
contamination on the antenna, this warning will be displayed.
• Clean antenna. See chapter 6.3 for cleaning of the antennas.
9.3.5 All warnings associated with one tank shown on Work Station
If warnings about communication failure, error etc. are shown for a single
tank, the cabling might be broken.
• Check cabling between faulty Transmitter and Level Unit.
If there is a warning on Level Unit ground failure, there may be water
within the Transmitter housing or in any associated cable connection box.
• Check inside of transmitter housing. Clean and dry out if necessary.
9.3.6 ERROR status on one temperature sensor
Faulty cabling between Transmitter and temperature sensor.
• Check cabling and, if necessary, repair.
Temperature sensor faulty.
• Replace temperature sensor. See chapter 7.2.
9.3.7 INVAL status on average temperature
This message normally does not indicate any fault. None of the
temperature sensors are below the product surface (immersed in the
liquid).
• Check Tank Setup-window for tank in question on the Work Station.
Sensors that are immersed in the product are shown with INCL in
the Mode column. See Operating Manual.
9.3.8 ERROR status on one IG pressure sensor
Cable to sensor may be faulty
• Check cable between sensor and cable terminal on Transmitter.
Sensor may be supplying a signal that is out of range
• Try to zero adjust the sensor and if that is not possible, replace the
sensor. See chapter 6.4.
9.4 Work Station
9.4.1 Work Station screen blank.
Monitor not turned on.
• Check that switch on the front panel below the screen is set to “1”.
See chapter 3.5.
Incorrect brightness/contrast setting.
• Change setting, see chapter 3.5.
Contact fault between PC and monitor
• Check cables and connectors between PC and monitor.
Power supply to monitor failing
• Check power supply to PC and from PC to monitor, cables and fuses.
Setting of BNC – D-Sub incorrect on front of monitor.
• Switch setting to D-Sub position, see chapter 3.5.