Crest Audio CR5058 User Manual page 5

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1.8
This product is factory tested to a depth of 100 m/330 ft and is intended for
recreational diving only. CREST strongly recommends that recreational divers
do not exceed the maximum depth of 40 m/131 ft specified for recreational
diving (air diving), or the maximum depth allowed by your dive training, and do
not use it in diving environments where you are not trained to dive within the
depth limits of your training.
"Your safety is your own responsibility, and to challenge risk is to
challenge your luck."
1.9
CREST strongly discourages recreational divers from engaging in diving
activities that require the performance of decompression, or diving above the
No Decompression Limit (NDL). Decompression diving activities require
specialist training and an adequate air supply.
As soon as you exceed the NDL or the product signals that you are
recommended to perform a decompression dwell, you should immediately stop
diving and begin a slow rise and decompression procedure. Please pay close
attention to the flashing digits, warning tone and vibration warning, and pay
attention to the ascent speed, dwell depth and time of the product, there may
be multiple recommended dwell depths and times, we suggest you follow the
instructions and complete the dwell.
1.10
This product can assist in calculating dive no-decompression limits etc., but it
does not mean that you can skip the dive planning process etc. If your dive
plan is more conservative, please always give priority to your dive plan.
1.11
To ensure that the display of the product is correct and complete, before each
dive, you should start the product correctly and check its functions, and make
sure that the battery power is sufficient, the oxygen concentration setting, the
personalization setting, and adjust other settings to make sure they are
compatible with your dive plan.
1.12
Any diving activity undertaken prior to the first activation of this product may
result in misleading information. If the product is left on the surface and not
dived with the diver, the dive computer meter will not provide accurate dive
planning and dive information calculations for subsequent dives.
1.13
Divers must not exchange or share this product with each other, and their
internal dive information must match the original user in order to ensure the
correctness of the dive plan and dive information displayed subsequently; their
internal information cannot be transferred to divers who do not wear it in its
entirety, and it cannot be used for subsequent repeat dives.
1.14
Before diving, please make sure that the settings of this product are correct and
fit your dive plan, e.g. the oxygen ratio of the gas to be used, and input them
into this product. Failure to personally confirm the contents of the oxygen
cylinder, or to set the correct personalized adjustment settings, may result in
incorrect calculation of the dive plan and dive information, and in severe cases
may result in the diver's life being in danger.
Page 5

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