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TITANUS
PRO·SENS
®
TECHNICAL MANUAL
7.1.2
Adjustment dependent on the air pressure
Fig. 7.3: Adjustment dependent on the air pressure of the air flow sensor of
TITANUS
PRO·SENS
®
For the adjustment dependent on the air pressure of the air flow sensor a
barometer
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and a multimeter are necessary. Follow the steps below:
1. Make sure the device has been in operation for at least 30 minutes.
2. Determine the height above sea level of the mounting location of the air
sampling smoke detection system and register the value in the
commissioning protocol.
3. Measure the air pressure by means of the pocket barometer and the
ambient temperature by means of a temperature measuring instrument.
Register both values in the commissioning protocol.
4. Determine the adjustment value for the air flow sensor according to the air
pressure adjustment charts( refer to appendix) and register the value in the
commissioning protocol. Pay attention that the adjustment chart
corresponds to the design of the pipe system.
5. Connect the multimeter to the measuring points MP1 (+), MP4 (-) (refer to
Fig. 7.). Pay attention to the polarity. Choose the "V-DC" range of the
measuring device. The standard voltage at the measuring points is 1.2 V.
The standard voltage of 1.2V, set to the measuring point, corresponds to the
average yearly air pressure for the relevant elevation (m above sea level).
6. With a small screwdriver set the trimming potentiometer R53 to the value
established in the air pressure adjustment chart.
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Recommendation: digital precision pocket barometer GPB 1300, Greisinger Electronic GmbH, Germany
INSTRUCTION