5-Pressure - Zodiac MEDLINE 7.5 Handbuch

c:240 mb
c:240 mb
NOTE: A slight loss of air is normal before the cap is screwed on.
Only the plugs provide final airtightness.
II -5-PRESSURE
The buoyancy tube has 5 compartments. Each must be inflated to a pressure of 240 mb / 3.4 PSI.
It is the buoyancy tube's correct pressure.
The ambient temperature of the air or the
water proportionally influences the
internal pressure of the buoyancy tube.
It is therefore important to anticipate
Check and adjust the pressure of inflatable compartments (by inflating or deflating) depending on
the temperature (particularly when temperature variations are high between the morning and
evening in particularly hot regions) and check that the pressure does not exceed the recommended
pressure zone (from 220 to 270 mb).
RISK OF PRESSURE LOSS
Example:
Your boat is exposed to direct sunlight on the beach (temperature=50°C) at the recommended
pressure (240 mb/3.4 PSI). When you launch the boat (temperature = 20°C), the temperature and
pressure in the inflatable compartments will jointly drop (up to 120 mb) and you must then re-
inflate them until the millibars lost due to the difference between air and water temperature are
regained.
It is normal to observe a drop in pressure at the end of the day when the outdoor temperature
drops.
BUOYANCY TUBE - PRESSURE
b: 220 mb
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b: 220 mb
Ambient temperature
+ 1°C
- 1°C
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Pressure inside the
buoyancy tube
+ 4 mb / + 0.06 PSI
- 4 mb / - 0.06 PSI
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Issue 1