Sea Ray 300 Sundancer, Руководство пользователя, Страница: 88 / 154

6.22
S
ECTION
6 • E
LECTRICAL
S
YSTEM
300 Sundancer
®
(335 Sundancer
®
)
+ –
MERCATHODE
®
SYSTEM
(FIG. 6.22.1)
CONTROLLER
(LOCATED IN ENGINE
COMPARTMENT
ON TRANSOM)
ELECTRODE
ASSEMBLY
19.M
ARINE
E
LECTRONIC
C
ATHODIC
A
NTI
-
CORROSION
S
YSTEM
(M
ERCATHODE
®
)
The automatically controlled Cathodic Anti-Corrosion
System for marine installation protects underwater metals
from the effects of corrosion and electrolysis on stern
drives. The system components are designed for marine
service. DO NOT PAINT THE MERCATHODE
®
SYSTEM.
The anode and reference electrode are attached to the
electrode assembly under each stern drive unit. The
solid state controller is mounted within a plastic housing
on the transom in the bilge.
Maintenance
The Mercathode
®
system must be tested to ensure
adequate output. The test should be performed every
100 hours or annually. Contact your authorized Sea Ray
®
dealer to arrange for this test. Refer to the engine
operator's manual for more detailed information.
If the anodes are deteriorating rapidly, or not at all, contact
your dealer.
When an AC shore power system is connected to the
boat, the underwater metal fittings will, in effect, be
connected through the water to grounded metals ashore.
This results in the zincs being consumed at a faster rate
unless the marina maintains a protective system to
prevent this. When the marina provides a zinc anode in
the water bonded to the metal outlet box on the dock,
zinc loss on the boat will be reduced. Do not connect
this zinc to the boat's ground system.
It is extremely important that all electrically-operated DC
equipment and accessories be wired so that the ground
polarity of each device is the same as that of the battery.
Your boat has a negative ground system. The zinc anode
is connected to every metal item in the boat (fuel tanks,
underwater gear, etc.) via the green bonding wire.
Electrolytic corrosion can also be caused by "stray
currents" due to a fault in an electrical item, even though
correctly grounded. A galvanic current isolator (zinc
saver) is standard on all Sea Ray
®
boats. It is installed
between the shore power ground and the boats' AC
grounding connection to the DC bonding system. This
connection maintains the safety ground from dockside
power while stopping the flow of DC corrosive currents.
Never disconnect the green wire (safety ground) from
the engine terminal.
! CAUTION