Monaco DYNASTY 2006, Руководство пользователя

Страница: 274 / 384

274 • SECTION 8 — ELECTRICAL SYSTEMS - HOUSE DYNASTY 2006
The hydrometer is calibrated at 80° F. Temperature affects the
hydrometer readings. The higher the electrolyte temperature, the higher the
specifi c gravity reading. The lower the temperature, the lower the specifi c
gravity reading. Add or subtract four points for each 10° variance from the
80° F chart. Readings between cells should not vary more than 50 points.
If one cell in a particular battery bank being tested is at a 50% state of
charge while the others are indicating a full charge, charge only that battery
to see if the low cell will come up. At the same time, do not over charge the
“healthy” cells.
If the low cell does not come up after charging, this battery can damage
the rest of the battery bank and should be replaced. An accurate digital Volt
meter + - .5% will also give an indicator of the battery’s state of charge.
Placing a load on the Battery:
Another test that can be performed is to place a specifi c load on the
battery for a predetermined length of time equal to that particular battery’s
rating. This machine is usually an adjustable carbon pile that can vary the
load being applied to the batteries while monitoring voltage to see if they will
perform to their specifi c rated capacities.
NOTE:
See the chart for temperature compensation. Liquid levels
should be even between the cells of the battery being tested as it
will affect the accuracy of the test.
WARNING:
Sulfuric acid in the batteries can cause severe injury or death. Sulfuric acid can cause
permanent damage to eyes, burn skin and eat holes in clothing. Always wear splash-proof
safety goggles when working around the battery. If the battery electrolyte is splashed in the
eyes, or on skin, immediately flush the affected area for 15 minutes with large quantities of
clean water. In case of eye contact, seek immediate medical aid. Never add acid to a battery
once the battery has been placed in service. Doing so may result in hazardous splattering of
electrolyte.
Battery Charge Time & Consumption Rate
Calculating Run Times:
Calculating run time fi gures when operating 120 Volt AC electrical items with an inverter can be exponential
due to battery characteristics. Flow characteristics of electrons vary with different battery types and chemical
compositions. Deep cycle batteries are generally designed to slowly release a majority of their charge capacity.
Deep cycle batteries are rated in amp hours (Ahrs) with the discharge occurring over an extended period of time
before the battery is charged. Engine starting batteries are designed to quickly release large amounts of current for
short durations, without depleting battery reserves. Commercial type batteries bridge the gap of deep cycle and
engine batteries. Commercial batteries release medium amounts of current over a longer period of time but they
are not designed to cycle their charge capacity.
Temperature Correction
Chart
030815