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2.1.7 How often should I replace the seals on my unit?
The frequency of re-sealing your unit depends upon how often you are diving with it; daily use
requires more frequent checks and replacement of seals etc. Check the functionality of the unit
before and after each dive, look specifically for signs of wear and tear or general deterioration of
components. Regularly check for a general flattening effect on the ‘O’ rings. Replace and reseal if
any of these signs are visible. Do not use a damaged unit, it is the responsibility of the owner/user
to ensure their unit is correctly sealed and fully functional.
2.2.0 USING THE AU9 WITH THE ‘DIVE’ CONVERSION KIT FITTED
With the diver conversion kit fitted an AU9 plb can be used for both Man Overboard Alert/Locate
and Lost Diver Alert/Locate.
2.2.1
For Man Overboard Alert/Locate – SURFACE USE
When using the AU9 (with the diver pressure conversion kit fitted) for MOB safety cover move the
side switch down into the ARMED/READY position; your unit will now automatically activate 5
seconds after you fall overboard. Switch OFF after use.
Fig. 42
2.2.2 For Lost Diver Alert/Locate – SUB-SEA USE
Before carrying the AU9 (with the diver pressure conversion kit) fitted on a, dive first switch the
unit OFF; move the side switch up into the ‘OFF’ position by sliding it UP. This disengages the
automatic water activation function. If you don’t switch the unit OFF before entering the water
your AU9 will automatically activate after 5 seconds immersion creating a false alarm. Switch OFF
after use.
Fig. 43
