PURSUIT 3000 EXPRESS, Руководство пользователя

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3000 EXPRESS
PROPER FUSE OR BREAKER PROTECTION MUST BE PROVIDED FOR ALL 12-
VOLT EQUIPMENT ADDED. DO NOT OVERLOAD THE ACCESSORY CIRCUIT
BREAKERS OR OTHER CIRCUITRY THROUGH ADDITIONAL 12-VOLT EQUIP-
MENT.
Battery Switches
There are three “ON” - “OFF” battery switches located on the front of the TABS unit. The
switches are activated using special keys that are attached to the TABS case. The port battery
switch is labeled “Port” and activates the port engine, the starboard battery switch is labeled
“Starboard” and activates the starboard engine and the center battery switch is labeled “House”
or “Auxiliary” and activates the 12-volt breaker panel in the cabin and all other 12-volt
accessories. Make sure that all three switches are activated whenever the engines are running
to ensure that all 12-volt accessories will operate when they are needed. Red LED lights above
each switch indicate that the switch is on.
The TABS controls the charging of all three batteries whenever one or both of the engines is
operating. When one or both of the engines is started, the engine alternators start to recharge the
batteries. This charging current passes through the TABS sensing circuit. This circuit senses the
charge and, after a one minute delay, switches relays to connect the “Auxiliary” or “House”
battery in parallel with the engine batteries. Thus the charge from the engine(s) is split between
the batteries with the lowest battery receiving the most charge. When the engines are turned off,
the charging stops and the sensing circuit turns off the relays, disconnecting the “Auxiliary” or
“House” battery from the cranking batteries, thereby automatically isolating the batteries from
one another.
Note: The relays in the TABS are set to a one minute delay. This is to eliminate relay
chatter on diesel powered boats when the ignition switches are first activated. The
chatter is caused by the relatively high current draw of the heating elements for
the air induction system in the engines. The chattering will not occur when at least
one of the engines is started and the alternator begins charging the batteries. If
one or both of the volt meters read below 12 volts after one minute, raise the engine
RPM to 1200 for several seconds then return them to idle. This will “excite” the
alternators and cause them to activate.
When in port or at anchor, the switch that supplies the port engine and the switch that supplies
the starboard engine should be off. Only the center battery switch that activates the “Auxiliary”
or the “House” battery should be on. This will keep the engine starting batteries in reserve for
starting the engines. All three battery switches should be in the “OFF” position when leaving
the boat unattended.
Note: Current is supplied to the automatic float switches for the bilge pumps when the
batteries are connected and the battery switches are off.
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