Owner`s manual

118
NOTE: The Hatch O-ring must be a genuine
TUSA part that can be purchased from an Autho-
rized 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 Battery Hatch securely in place and turn it
counter clockwise 10 degrees using the Hatch tool (Fig.
116A), or by pushing the lower portion to the right while
pushing the upper portion to the left using your fingers (Fig.
116B).
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 ZEN
to an Authorized TUSA Dealer for a complete evaluation
before attempting to use it.
Fig. 116A - HATCH
INSTALLATION
Fig. 116B - ALT HATCH
INSTALLATION