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2 SAFE USE OF YOUR GAUGE
This gauge is suitable for use underwater at depths of up to 300 m (1000 ft) provided
that the following conditions are followed:
2.1 CARE OF THE HOUSING
1. Keep the gauge out of direct sunlight as much as possible to avoid any potential crazing or
stress cracking of the housing, as well as discolouration.
2. Protect the housing from impact.
3. Submerge or rinse the enclosure and transducers in fresh water following use.
4. Do not exceed the depth limitation of 300 m (1000 ft). Failure to adhere to this warning may
result in leakage, potential implosion and serious injury.
2.2 CARE OF THE HOUSING SEALS
The housing is sealed by o-rings, one on each end cap, which require meticulous care. In order to
maintain a watertight seal, the o-rings and their mating surfaces must be clean, free of foreign
material and lubricated with silicone grease.
The following procedure must be performed on the end cap o-rings before each use:
1. Clean all old silicone grease from o-rings and mating surfaces using paper towels.
2. Inspect o-rings for foreign material (sand, seaweed, hair, etc.), cracks, cuts, soft spots, or
deformities. Replace o-ring if damaged. Inspect mating surfaces for scratches, rough spots,
dents, or cracks.
3. Using a finger, apply a thin, even coat of silicone grease to o-rings on each end cap. Inspect to
be sure the o-ring has been properly fitted, and screw the end cap back in place, until it has a
nice snug fit.
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