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Service Manual
Third edition, June 1997
3.11 Level Unit – IG Pressure Data
The IG Pressure Data-window shows the dynamic data and
the database values for the IG pressure measurement.
Select a new tank by hitting the Tank-button or by hitting the
up or down arrow keys.
The dynamic data box shows:
• Pressure. The measured pressure.
The status boxes show:
• TX comfail indicates that the transmitter is not commu-
nicating. This produces an alarm on the alarm row.
• Press sens fail. The sensor is faulty. This status will also
be shown as an alarm.
• Press sens valid. This box is checked when the mea-
surement is working well.
• Ext. press alarm. The extreme pressure alarm status is
an alarm for rapid detection of changes in the IG pres-
sure. The alarm handling is done in the Transmitter,
and the alarm can therefore be displayed to the opera-
tor instantly.
The database box shows:
• Press sens type. The type of sensor can be set as:
- 0 for not connected sensor.
- 9 for ± 500 mbar type sensor.
• Pressure offset. The offset correction that has been
programmed for the sensor. The pressure offset is pro-
grammed by pressing the Service-button in the Level
Unit-window, see chapter 3.28 and 6.4.
• Ext alarm low and Ext alarm high. Set the high and low
alarm limits of the extreme pressure alarm.
Any changes of the database values must be followed by
hitting the Save-button as well as restarting the transmitter
by hitting the Restart TX-button.