Returning The Module To A Boot; Altitude Sensing And Adjustment - Aqua Lung i300C Owner's Manual

Battery Cover Installation
• Lightly lubricate a new cover O-ring with silicone grease and place it on the inner rim of the battery cover. En-
sure that it is evenly seated.
Caution: The O-ring must be a genuine Aqua Lung part that can be purchased from an authorized
!
Aqua Lung dealer. Use of any other O-ring will void the warranty.
• Slide the cover ring, top portion first (small opening), onto your thumb.
• Carefully place the cover (with O-ring) into position on the rim of the battery compartment, then press it com-
pletely and evenly down into place with your same thumb.
• Maintain the cover securely in place and, using your other hand, slide the cover ring off your thumb and into po-
sition around the battery compartment. The tabs on the ring fit down into the slots located at the 2 and 9 o'clock
positions.
• Using your fingers, turn the ring counter clockwise 5 degrees until the tabs engage, then tighten it 5 more de-
grees by turning it counter clockwise with the aide of a battery key.
• While tightening the retaining ring, exert continuous inward pressure on it until it is secured in the proper posi-
tion. A small key symbol located on the ring should be aligned with the locked symbol located on the housing.
Inspection
• Activate the unit and watch carefully as it performs a full diagnostic and battery check, and enters Surface mode.
• Observe the LCD display to ensure it is consistently clear and sharp in contrast throughout the screen.
WARNING: If there are any portions of the display missing or appearing dim, or if a low battery condi-
!
tion is indicated, return the unit to an authorized Aqua Lung dealer for a complete evaluation before
attempting to use it.

RETURNING THE MODULE TO A BOOT

• If the boot was fitted with a spacer and it was previously removed, replace the spacer into the boot.
• Orient the module over the opening in the boot. Then dip the bottom edge into it while pressing the top edge with
the palm of your hand. Stop pressing when the bottom edge of the module has just entered the boot.
• Correct the alignment of the module as needed so that it is straight.
• While watching the alignment, press the module completely into place with your thumbs until it snaps into place.

ALTITUDE SENSING AND ADJUSTMENT

Altitude (i.e., ambient pressure) is measured upon activation and every 15 minutes until a dive is made.
• 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 30 cm (1 foot)
of each other to record that ambient pressure as the current altitude.
• No adjustments are made during any time that the Wet Contacts are bridged.
• When diving in high altitude waters from 916 to 4,270 meters (3,001 to 14,000 feet), the i300C automatically
adjusts to these conditions providing corrected depth, and reduced NO DECO and O2 MIN (O
at intervals of 305 meters (1,000 feet).
• When the Conservative Factor is set ON, NDLs are calculated based upon the next higher 915 meter (3,000
foot) altitude. At sea level, calculations are based upon an altitude of 1828.8 m (6,000 feet). All adjustments for
altitudes greater than 3,355 meters (11,000 feet) are then made to allowable dive times for 4,270 meters (14,000
feet).
• The i300C will not function as a dive computer above 4,270 meters (14,000 feet).
© Aqua Lung International, Inc. (2017)
battery
cover O-ring
60
REFERENCE
saturation) times
2
Doc. 12-7874-r06 (11/27/17)