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

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WARNING:  During Activation and Diagnostics, if any display or function

varies from the information presented here, return the Element to your

Authorized TUSA Dealer for inspection.

ACTIVATION and

 

SETUP

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ACTIVATION

WARNING:  If the unit is activated at elevations

higher than 14,000 feet (4,270 meters), it will per-

form a diagnostic check and immediately shutdown.

To Activate the Element, press and release the Button.

•  Upon manual activation, the unit will enter Diagnostic

Mode (Fig. 13), displaying all segments of the LCD as 8's,

followed by dashes ( - - ), then a countdown from 9 to 0.

Diagnostic Mode checks the display and Battery voltage to

ensure that everything is within tolerance and functioning

properly.

•  When the button is held depressed and the Diagnostic

countdown reaches 00, a Serial Number screen appears

displaying the unit’s Serial Number and firmware code

Revision Number as long as the button is held depressed

(Fig. 14).  Upon releasing the button, the unit shuts Off.

•  After manual activation, it will also check the ambient

barometric pressure, and calibrate its present depth as

zero.  At elevations of 3,000 feet (915 meters) or higher, it

will recalibrate itself to measure depth at that higher Alti-

tude.

Fig. 13 - DIAGNOSTIC MODE

Fig. 14 - SERIAL NUMBER

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Wet Contact Activation (only if set ON)

The Element will also automatically activate by Wet Contact.

This is accomplished by bridging the gap between contacts

located on the Button's stem and back of the case.

If no dive is made within 2 hours after initial activation, the unit

will automatically deactivate.  If the wet contacts are still

bridged, the unit will reactivate and display the H2O graphic.

SURFACE SEQUENCE

While on the surface, the unit will automatically scroll through a

Sequence of displays including -

•  Surface Mode

•  Fly Mode

•  DeSat Mode

•  Plan Mode

As the Surface Sequence is scrolling, you can use the button to

access Log Mode and Set Mode.

SURFACE MODE

Surface Mode, identified by the Surface Time icon (Fig. 15a),

follows Diagnostic Mode after Activation.  Information includes

Surface Time with flashing colon (and clock/wave icon, Tem-

perature (with icon and graphic C or F), Time of Day (with clock

icon), and Dive Number with # icon (0 if no dive made yet).

Fig. 15 - SURFACE MODE

a

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SET MODE

After gaining access to Set Mode, settings can be made in

sequence one after the other, or you can access a specific item

that you want to set, bypassing others.

To access Set Mode while the Surface Sequence is scrolling,

press the button for 2 seconds.

•  Upon entry into Set Mode, the Set FO2 screen will be

displayed with the Set Point flashing (Fig. 16).

•  If the button is not pressed during a 2 minute period while in

the Set Mode, the unit will revert to Surface Mode and

resume the Surface Sequence scroll.

TO SET - FO2

Each time the unit is activated (if Off), FO2 will be automatically

set for a default value of AIR which can then be changed to

values between 21 and 50% in increments of 1%.

•  While the Surface Sequence is scrolling, depress the button

for 2 seconds.

•  Release the button when the FO2 screen appears with the

Set Point flashing.

•  Press/release the button repeatedly to increase the FO2

value from 21 to 50% in increments of 1%, then display AIR

again.

Fig. 16 - SET MODE ENTRY

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•  For each FO2 value that appears, the Maximum Depth that

can be achieved for the PO2 Alarm Set Point will be dis-

played (Fig. 17a) with the graphic PO2.  If FO2 is set for

AIR, no Depth value will be displayed.

•  Depress the button for 2 seconds to accept the FO2 Set Point

displayed and advance to the Set Wet Activation screen.

TO SET - WET ACTIVATION

Factory set for ON, Wet Activation can also be set OFF (dis-

abled) to prevent inadvertent activation during travel or storage.

When set ON, the Element will automatically Activate and enter

Dive Mode upon immersion in water.

•  After having set and accepted the FO2 setting, the Set Wet

Activation screen appears displaying the graphics ACt and

WET with the Set Point flashing (Fig. 18).

- - or - -

•  While the Surface Sequence is scrolling, depress the button

for 4 seconds to bypass Set FO2 to access the screen, then

release the button.

Fig. 17 - FO2 set for 32%

(130 feet allowed)

a

Fig. 18 - SET WET

ACTIVATION

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•  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 Units Of Measure.

TO SET - UNITS OF MEASURE

Factory set for Imperial, Units of can also be set for Metric.

•  After having set and accepted Wet Activation, the Set Units

screen appears with the Set Point flashing (Fig. 19).

- - or - -

•  While the Surface Sequence is scrolling, depress the button

for 6 seconds to bypass Set FO2 and Set Wet Activation,

then release the button.

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

between Metric (M and C) and Imperial (FT and F) units.

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

and advance to Set Hour Format.

Fig. 19 - SET UNITS OF

MEASURE

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