Routine Checks; Unit Cleaning Instructions - Raymarine DownVision CPT-70 Installation Instructions Manual

9.1 Routine checks

The following periodic checks should be made:
• Examine cables for signs of damage, such as
chafing, cuts or nicks.
• Check that the cable connectors are firmly
attached and that their locking mechanisms are
properly engaged.
Note: Cable checks should be carried out with the
power supply switched off.
Warning: High voltage
This product contains high voltage.
Adjustments require specialized service
procedures and tools only available to
qualified service technicians. There are
no user serviceable parts or adjustments.
The operator should never remove the
cover or attempt to service the product.
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9.2 Unit cleaning instructions

The unit does not require regular cleaning. However,
if you find it necessary to clean the unit, please follow
the steps below:
1. Ensure power is switched off.
2. Wipe unit clean with a damp cloth.
3. If necessary, use a mild detergent solution to
remove grease marks.
Transducer care and cleaning
Growth can collect on the bottom of the transducer,
this can reduce performance. To prevent the build-up
of sea growth, coat the transducer with a thin layer
of water-based antifouling paint, available from
your local marine dealer. Reapply paint every 6
months or at the beginning of each boating season.
Certain smart transducers have restrictions on where
antifouling paint is applied. Please consult your
dealer.
Note: Transducers with a temperature sensor may
not work properly if painted.
Note: Never use ketone-based paint. Ketones
can attack many plastics, possibly damaging the
sensor.
Note: Never use spray paint on your transducer.
Spraying incorporates tiny air bubbles, and a
marine transducer cannot transmit properly
through air.
Use a soft cloth and mild household detergent to
clean the transducer. If the fouling is severe, remove
the growth with a tough cleaning pad, such as a
green Scotch Brite TM pad for example. Be careful to
avoid scratching the face of the transducer.
Note: Harsh cleaning solvents such as acetone
WILL damage the transducer.
CPT-70 / CPT-80 / CPT-110 / CPT-120