By pressing SEL in the swim menu, you reach
the swim mode settings. By pressing SEL
the counter stroke threshold starts blinking.
A big threshold setting will detect only large
movement as a stroke, too small a setting
may detect too many strokes. You must test
and adjust this according to your style. By
pressing the +/UP or -/DOWN buttons the
value can be selected from 2cm/1inch to
40cm/16inch. By pressing SEL the distance
per stroke starts blinking. You may select the
value from 0.5m/2ft to 5.0m/16ft by pressing
+/UP or -/DOWN buttons. By pressing SEL
the swim mode activation starts blinking and
you may scroll between off/on/pulse (with
pulse selected, the swim mode is enabled and
heart rate is activated) by pressing the +/UP or
-/DOWN buttons. By pressing the SEL button
the values are confirmed.
4.6 Algorithm selection
You may select your MANTIS operation mode
between SCUBA, GAUGE or APNEA modes.
When MANTIS has not been submerged for a
while the display looks like the illustration below:
The GAUGE and APNEA modes are not
tracking the tissue saturation and there is a
locking interval before a change to SCUBA
mode is possible. In GAUGE mode the
locking interval is 48h after the last dive in
GAUGE mode. In APNEA mode there is 12h
locking interval with shallower than 5m/16ft
and 24h locking interval with deeper than
5m/16ft dives in APNEA mode.
MANTIS shown below went for a dive in
GAUGE mode and the operation mode
cannot be changed for another 13 hours.
The change to GAUGE or to APNEA mode
is possible after the desaturation time from
the last SCUBA dive has elapsed.
If you decide to change modes before the
48h interval or full desaturation you have
to go to the desaturation reset menu and
perform a manual desaturation reset.
By pressing the SEL button in this menu
the mode starts blinking. By pressing the
+/UP or -/DOWN buttons you may select
between SCUBA, GAUGE or APNEA
modes. By pressing the SEL button the
selection will be confirmed.