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• Clean the o-ring groove with a cotton swab. Ensure that it is free of any fibers, and install
the o-ring being careful not to twist it during installation.
Installing the battery door:
• Place battery cover plate over the battery compartment, inserting the half moon shaped
alignment sections of the cover into the half moon shaped cavities in the battery compart-
ment. The yellow decal should be toward the hose end of the module caseback.
• Place the knurled ring on top of the threads of the caseback.
• Slowly turn the knurled ring backward (counter-clockwise) until it seats evenly onto the
first thread.
• Using care not to cross the threads, turn the ring clockwise until it is secure. DO NOT
overtighten or use tools to tighten.
Testing (do not reinstall the boot yet):
• Attach regulator/DataMax Pro assembly to a tank and pressurize the system.
• Activate the DataMax Pro by pressing button.
• Observe that the diagnostic mode clears.
Boot installation:
• Slide the boot up the hose to the bottom of the module. Roll boot inside out.
• Slide the boot up further over the hose fitting, and roll the boot over the module, adjusting
as necessary until it fits into place.
FLOODED BATTERY COMPARTMENT
If water was found in the compartment, discard the batteries and determine the cause of
flooding. The only cause you can attempt to fix yourself is improper installation of the o-ring. If
the o-ring did not stay in the groove, check for o-ring damage, replace or reinstall, and follow the
remainder of battery replacement procedures. If it was damaged (nicks, cuts, divots, etc.),
discard it and replace it with a new DataMax Pro battery compartment o-ring.
Before replacing o-ring and batteries, flush battery compartment with fresh water and dab
with tissue paper until completely dry. Allow to air dry overnight or blow dry with a hair dryer
(set at 'no heat'). Damage to battery contacts or o-ring, even if you follow this procedure exactly,
