Beta Marine Beta 28 Operator's Maintenance Manual page 54

ELECTRICAL FAULT FINDING - NON-BETA PANEL
Engines can be supplied wired up to suit VDO switch
senders, usually fitted to a non-Beta control panel. If so
refer to our wiring diagram 200-60971/01 (also part
number for replacement harness)
• Loom is configured differently in the 11-way plug to
accommodate the extra wiring.
• Small brown wire (battery sensed alternator feed) fitted
with bullet connection beside harness plug.
• Oil pressure and water temperature switch / senders
fitted to engine, requiring individual connections for
driving gauges and warning lamps.
ELECTRICAL FAULT FINDING - EXTENSION HARNESSES
Some installations require one of the panel extensions 11
way connectors to be removed to allow the cable to be
passed through bulkheads etc.
If any panel problems are experienced, after this may
have been carried out, visually check all 11 way
connections on engine harness to panel extension (and
panel extension to panel on C 'Deluxe') to ensure wire
colours to each terminal match up to the correct colour in
its corresponding terminal.
ELECTRICAL FAULT FINDING - INSULATED EARTH
If your application is wired as insulated earth return and
the engine will not operate correctly, always check starter
battery negative is connected to the correct terminal on
the isolating solenoid.
Note: Water temperature switch/sender
(Part number 200-01133)
Large spade is sender connection
Small spade is switch connection
Oil pressure switch/sender
(Part number 200-62680)
G Gauge wire
M Earth (ground)
WK Warning lamp
Extra attention must be given to black (ground) and
black/blue (tacho), also brown (switched positive to
alternator) and brown/yellow (charge fail) as these
connections are harder to distinguish between in poorly lit
areas. Whilst doing this check integrity of each connection
to ensure terminals have not become damaged. Once
checked, re-fit cable tie around each connection to keep
them secure.
It should be connected to the terminal which is also used
for all the small black wires, NOT the terminal with the
single black wire connected directly to engine ground.
52
(green/blue)
(blue/yellow)
(white/brown)
(black)
(green/yellow)