LD200 Manual
Selectronic Australia
8
Maintenance
Inverter
Periodic maintenance of your LD200 inverter involves little more than
checking for any obstructions to the black cooling heatsink at the rear of the
inverter. The heatsink must be cleared of any accumulated foreign matter that
may have lodged itself between the fins since the last maintenance check, e.g.
insect nests. Also verify that airflow around the inverter has not become
restricted.
Batteries
1.
Every week, carry out a thorough visual inspection of all battery
wiring, taking particular note of the condition of inter-connections
between cells. This maintenance should be carried out in conjunction
with the battery manufacturers recommended maintenance.
Safety Hint
When working on batteries of such high capacity it is
essential that you wear protective clothing, some form of eye
protection and rubber-soled work boots. Please regard your
batteries with a great deal of caution, and if in any doubt,
entrust this work to your supplier / installer.
2.
Check that the stainless steel inter-connecting bolts are tight and have
no corrosion. If corrosion is evident, carefully follow the following
procedure.
•
Disconnect the system battery fuse before working on the battery
bank.
•
Unbolt the stainless steel bolts and nuts of any corroded
connections and thoroughly clean the joint with a wire brush or
file, taking extreme care not to short circuit any battery cells with
any tools.
•
Re-assemble and smear a small amount of Vaseline or similar
grease over the surface of the joint to slow down any future
corrosion.
LD200 Manual
Selectronic Australia
5
•
Where batteries are joined
in
parallel
, add the capacities
together, the voltage will
remain the same as each
batteries voltage.
2 x 12 Volt 100 Ah batteries connected in parallel would have a
capacity of 12 Volts – 200 Ah.
Only use identical batteries when joining batteries together.
How long will my battery last
To work out how long your battery will last follow this basic guide.
This guide presumes commencing with a fully charged battery.
Take the total rating of the appliance being run
1
light globe
25watts
1
20 inch TV
67watts
1
VCR
30watts
Total load
=122watts
Divide this figure (122) by 10 to know the approximate DC current draw
=12.2Amps
To convert this to Ampere hours, multiply by the number of hours used -
Say 1 hour
=12.2Ah
So if we have a 50Ah battery, then with the above example we should have
50 minus 12.2 = 37.8 Ah remaining in the battery.
As a general guide never discharge a battery below 50%. The deeper
a battery is discharged on a regular basis, the less life you can
expect from the battery. See you battery specifications for full
details.
