POSEIDON M28 - Dive Alarms

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POSEIDON M28 USER MANUAL
Dive alarms
Dive alarms is the group of alarms that relate to use of the M28, in other words
diving. The alarm conditions are however monitored even if no dive is in
progress. The table below lists the dive alarms of the M28 together with their
activation and deactivation conditions.
Alarm Activation condition Deactivation condition
Measured pp
O
2
low
Only applicable in
CPOD dive mode
Measured ppO
2
< limit.
The limit is initially 0.16 bar and
is raised to 0.27 bar when ppO2
exceeds 0.25 bar continuously
for more than 30 seconds or
when Dive start is detected.
The limit is reset when the
CPOD is disconnected and
the CPOD disconnected alarm
is reset and when the M28 is
power on.
Measured ppO
2
> limit
(see activation criteria for
information about the limit)
Measured pp
O
2
high
Only applicable in
CPOD dive mode
Measured PO2 > 1.6 bar
continuously for more than 60
seconds
Measured ppO
2
< 1.6 bar
Measured pp
O
2
high
(immediate)
Only applicable in
CPOD dive mode.
Measured PO2 > 1.8 bar
Measured ppO
2
< 1.8 bar
PO2 deviation
Only applicable in
CPOD dive mode.
Measured pp
O
2
deviates from
setpoint by more than 0.25 x
setpoint continuously for 120
seconds when in CC mode.
Measured ppO
2
deviates
from setpoint by at most
0.25 x setpoint when in CC
mode OR not
in CC mode