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UWT AV1 - Power Supply System

UWT AV1
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36
eCCR AV1 calibration procedure starts automatically with each controller's switch on (though
it is possible to cancel it), or you can force the calibration process via the Menu in Surface
mode.
O
2
% in calibration gas is set up (by default 98%);
upon confirmation the solenoid is opened for uninterrupted supply and fills the loop with
calibration gas;
at the moment of gas supply via the solenoid Oxygen cells are tested in uninterrupted
way. As soon as indication of each Oxygen cell stops changing during the set time
period, cell calibraton is successfully finished. During this process testing for allowed
cell indication level is made.
Important! Solenoid and cells must be calibrated in one gas volume, eg.
eCCR Inspiration can serve as a good example.
In Surface Mode in case if within 90 seconds PO
2
value doesn't change, solenoid will
automatically switch off no matter what real PO
2
is in the loop. At the same time the controller
doesn’t switch to Sleeping Mode until TimeToSleep period is over. If PO
2
starts to change,
the solenoid will restart working.
6.2 Power supply system
eCCR AV1 (ver 1) controller, unlike AV1 dive computer, does NOT have a built-in
accumulator. Power is supplied from external power sources.
eCCR AV1 (ver 2) controller has two built-in independent power sources: basic B1
removable accumulator of 18650 standard and a back-up accumulator B2.
eCCR AV1 controller works with two independent power sources B1 and B2. LiPo
accumulators with 3.7V voltage are used as power source. Batteries are charged via USB
port of the device or via external charger.
By default B1 is the main power source. If during operation B1 discharged to less than 20%
of nominal charge, the controller switches to using B2 battery. If then B2 battery also
discharges down to 20% and less, power supply will be made from both batteries at the same
time (connected in parallel).
6.3 HUD
The HUD has two L.E.D.s: red and green.
If everything is in order, green L.E.D. indicator is on;