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5. Remove the old O-ring from the battery compartment lid.
6. Check the condition of the old O-ring; a defective O-ring may indicate sealing
or other problems. Dispose the old O-ring and battery compartment lid, even if
they seem to be in good condition.
7. Check that the battery compartment surfaces are clean. Clean with soft cloth
if necessary.
8. Gently insert the new battery under the battery retainer/contact. Check the
polarity of the battery: the “-” mark should point toward the bottom of the
compartment and the “+” mark upwards.
9. Check that the new battery compartment lid and lubricated O-ring are in good
condition. Be very careful not to get any dirt on the o-ring or its sealing surfaces.
10. Orient the lid properly and carefully press the lid onto the battery compartment
with your thumb, while making sure that the O-ring is not at any point protruding
out on the edge. Make sure that the lid is pressed completely down!
11. Turn the battery compartment lid fi rmly but carefully clockwise until it snaps
into its locked position.
12. The dive computer should now active it’s timekeeping mode and show time
18:00 [6:00 PM] and date SA 1.1. Activate the instrument. Check that:
• All display segments work.
• The low battery warning is off.
• The buzzer beeps and backlight works.
• All the settings are correct. Reset if necessary.
