Tusa iq-650 element computer manual 12-2917-r02

23

TO SET - HOUR FORMAT

Factory set for 12 Hour (12: AM to 11: PM), the Hour Format

can also be set for 24 Hour (0: to 23: hours).

•  After having set and accepted Units, the Set Hour Format

screen appears with the Set Point flashing (Fig. 20).

- - or - -

•  While the Surface Sequence is scrolling, depress the button

for 8 seconds to bypass Set FO2, Wet Activation, and Units,

then release the button.

•  Press/release the button (less than 2 seconds) to toggle

between 12 and 24.

•  Depress the button for 2 seconds to accept the Set Point and

advance to Set Time.

Fig. 20 - SET HOUR

FORMAT

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24

TO SET - TIME

Set for factory local time, the Time can be set to values between

1:00 and 12:59 (AM/PM) or 0:00 and 23:59.

•  After having set and accepted Hour Format, the Set Time

screen appears with the Hour Set Point flashing (Fig. 21).

- - or - -

•  While the Surface Sequence is scrolling, press the button for

10 seconds to bypass Set FO2, Wet Activation, Units, and

Hour Format, then release the button.

•  Press/release the button repeatedly (less than 2 seconds

each time) to advance the Hour Set Point in increments of 1

Hour per press of the button.

•  Depress the button for 2 seconds to accept the Hour Set

Point, the Minutes Set Point flashes.

•  Press/release the button repeatedly (less than 2 seconds

each time) to advance the Minute Set Point in increments of 1

Minute per press of the button.

•  Depress the button for 2 seconds to accept the Minute Set

Point and advance to Set PO2 Alarm.

Fig. 21 - SET TIME

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25

TO SET - PO2 ALARM

Factory set for 1.60 (ATA), the PO2 Alarm can be set to values

between 1.20 and 1.60 (ATA) in increments of .10 (ATA).

•  After having set and accepted the Time, the Set PO2 Alarm

screen appears with the Set Point flashing (Fig. 22).

- - or - -

•  While the Surface Sequence is scrolling, press the button for

14 seconds to bypass Set FO2, Wet Activation, Units, Hour

Format, and Time, then release the button.

•  Press/release the button repeatedly (less than 2 seconds

each time) to advance the PO2 Alarm setting in increments

of .10 (ATA) per press of the button.

•  Depress the button for 2 seconds to accept the PO2 Alarm

Set Point and advance to Set FO2 Default.

Fig. 22 - SET PO2 ALARM

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26

TO SET - FO2 50% DEFAULT

Factory set  ON, the FO2 50% Default feature can be set to

OFF.  The effects of this feature being ON or OFF are described

on page 16.

•  After having set and accepted the PO2 Alarm Set Point, the

Set FO2 50% Default screen appears with the Set Point

flashing (Fig. 23).

- - or - -

•  While the Surface Sequence is scrolling, depress the button

for 16 seconds, then release it when the Set FO2 50 screen

appears with the Set Point flashing.

•  Press/release the button (less than 2 seconds) to toggle

between ON and OFF.

•  Depress the button for 2 seconds to accept the Set Point and

advance to Set No Deco Deep Stop.

Fig. 23 - SET FO2 DEFAULT

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27

TO SET - NO DECO DEEP STOP (DS)

Factory set  OFF, the No Deco Deep Stop feature can be set to

ON.  The effects of this feature being ON or OFF are described

on page 34.

•  After having set and accepted the FO2 50% Default Set

Point, the Set DS screen appears with the Set Point flashing

(Fig. 24).

- - or - -

•  While the Surface Sequence is scrolling, depress the button

for 18 seconds, then release it when the Set DS screen

appears with the Set Point flashing.

•  Press/release the button (less than 2 seconds) to toggle

between ON and OFF.

•  Depress the button for 2 seconds to accept the Set Point and

revert to the Surface Sequence.

Fig. 24 - SET DEEP STOP

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28

•  It should not be considered that the capabilities built into the Element provide

an implied approval or consent from TUSA for individuals to exceed the defined

limits for recreational diving, as agreed on by all internationally recognized

training agencies.

•  The oxygen features of the Element are intended for use by recreational divers

trained for nitrox diving by an instructor certified by a recognized training

agency to teach diving with nitrox.

•  Conducting repetitive dives using enriched nitrogen-oxygen mixtures can lead

to oxygen buildup, reducing oxygen tolerance while increasing the risk of

pulmonary oxygen toxicity.

•   The Element provides information based upon a personal dive profile, and

therefore must not be shared between divers.  It is impossible for two divers to

stay precisely together underwater, and  your computer's dive profile tracking

of previous dives will be pertinent to you only.  Nitrogen and oxygen loading of

a second user may be significantly different and swapping dive computers

could  lead to inaccurate and dangerous predictions of decompression and

oxygen accumulation status.

WARNINGS AND SAFETY RECOMMENDATIONS

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