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WARNING: In case there are several divers using D9s with wireless transmission al-
ways ensure that all divers are on different codes before starting the dive.
The user can manually change the transmitters code by reducing the pressure to less
than 10 bar [145 psi] and then immediately (within 10-12s) increasing the pressure
above 15 bar [220 psi]. The transmitter will now select a new code. The wrist unit must
be in cd:-- mode to pair on the new code. This procedure can be used e.g. if your dive
buddy has the same code and you need to change the code.
NOTE: In order to save battery energy the transmitter shuts off if the pressure remains
unchanged for more than 5 minutes and it will continue transmitting with the saved co-
de when any pressure change is measured.
5.3.3. TRANSMISSION DATA
After the pairing procedure the D9 will receive cylinder pressure data from the trans-
mitter. The pressure is displayed in either bars or psi depending on the unit selecti-
on. Any time the D9 receives an appropriate signal it fl ashes the lightning fi gure in the
display's lower left corner. A pressure reading of over 360 bar [5220 psi] will display
as "---" (Fig. 5.30 b).
If the D9 is unable to receive a valid signal for more than one minute it will start
displaying "FAIL" intermittently with the latest valid pressure reading (Fig. 5.30 c).
In case the transmitter battery is running low, a low battery warning "LOBT" will be
transmitted and displayed intermittently with the pressure reading on the D9 (Fig. 5.30
d).
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