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Battery Installation
• Slide a new 3 volt type CR2430 Lithium Battery, negative side down into the cavity of the compartment. Slide it in from the
left side (Fig. 106) and ensure that it slides under the contact clip on the lower/right rim of the cavity.
• Lightly lubricate the new Hatch O-ring with silicone grease and place it on the inner rim of the Battery Hatch. Ensure that it
is evenly seated (Fig. 107).
NOTE: The Hatch O-ring must be a genuine TUSA part that can be purchased from an Authorized
TUSA Dealer. Use of any other O-ring will void the warranty.
• Carefully place the Battery Hatch (with O-ring) into position on the rim of the Battery Compartment, then press it evenly and
completely down into place.
• Maintain the Hatch securely in place and turn it counter clockwise 10 degrees using the Hatch tool (Fig. 108), or by pushing
the lower portion to the right while pushing the upper portion to the left using your fingers (Fig. 109).
Testing
• Activate the unit and observe the LCD is consistently clear and sharp in contrast throughout the screen.
• Set the Watch functions.
• Verify all Set Points prior to diving.
• If any portions of the display are missing or appear dim, or if a Low Battery condition is indicated, return your Talis to an
Authorized TUSA Dealer for a complete evaluation before attempting to use it.
ALTITUDE SENSING AND ADJUSTMENT
Prior to the first dive of a series of repetitive dives, Altitude (i.e., Ambient Pressure) is measured upon activation of Dive Surface
Mode and every 15 minutes until a dive is made or operation reverts to Watch Default Time.
> While it is operating in Watch mode after a dive, measurements are taken every 15 minutes during the 24 hour period after
surfacing.
> Measurements are only taken when the unit is dry.
> Two readings are taken, the second reading 5 seconds after the first. The readings must be within 1 foot (30 cm) of each
other to record that Ambient Pressure as the current Altitude.
The Mathematical Model in the Talis accounts for the reduced No Deco Dive Times (NDLs) available based on National Oceanic
and Atmospheric Administration (NOAA) guidelines.
When diving in high altitude waters from 3,001 to 14,000 feet (916 to 4,270 meters), the Talis automatically adjusts to these
conditions providing corrected Depth, reduced No Deco Dive Times, and reduced Oxygen Accumulation Times at Altitude inter-
vals of 1,000 feet (305 meters).
No adjustments are made during any time that the Wet Contacts are wet.
At an elevation of 3,001 feet (916 meters), Depth Calibration automatically changes from feet of seawater to feet of fresh water.
This is the first adjustment to the Algorithm.
When the Conservative Factor feature is set On, allowable dive times are calculated based upon the next higher 3,000 foot (915
meter) Altitude. All adjustments for Altitudes greater than 11,000 feet (3,355 meters) are then made to allowable dive times for
14,000 feet (4,270 meters). If the Conservative Factor is set On while at Sea Level, calculations are based upon an Altitude of
6,000 feet.
The Talis will not function as a Dive Computer above 14,000 feet (4,270 meters).
ERROR (RESET DURING A DIVE)
If for any reason, the Talis shuts Off then turns On again for any reason during any Dive, the message ERR (Error) will be dis-
played with the Up Arrow and current Depth (Fig. 110).
If this occurs, it is highly recommended that you terminate the dive and begin a safe ascent to the surface.
Upon surfacing, and any time thereafter, when access to Dive Computer Operating Mode is attempted from Watch Mode, only
the message ERR will be displayed (Fig. 111).
No Dive Computer modes/screens will be accessible.
If this occurs, the Talis must be returned to the factory for evaluation/service prior to any further use for diving activities.
©2002 Design, 2014
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45
TALIS
OWNER'S MANUAL
Fig. 106 - BATTERY
INSTALLATION
Fig. 107 - HATCH O-RING
Fig. 108 - BATTERY HATCH
INSTALLATION
Fig. 109 - ALT BATTERY
HATCH INSTALLATION
Fig. 110 - ERROR WHILE
DIVING
Fig. 111 - ERROR AFTER
SURFACING
Doc. No. 12-5355-r01 (1/20/14)
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