Maintenance - Teledyne 965 Five-Station Installation And Operation Manual

1.5 Operating
Instructions

1.6 Maintenance

The Model 965 Five-Station Battery Charger, when connected to
the appropriate AC power source, will properly charge either Isco
nickel-cadmium or lead-acid batteries. The charger provides a
regulated, current-limited 400 mA for the proper charging of
nickel-cadmium batteries, and a regulated voltage of 16 VDC
limited to 800 mA for charging lead-acid batteries.
Do not test either nickel-cadmium or lead-acid batteries for
state-of-charge by sparking the output (shorting the connectors
together). Be very careful inserting voltmeter probes into the
battery output connectors. Any accidents resulting in a shorted
battery output can damage the battery in less than three
seconds. Additionally, because the batteries are not internally
fused, the conductors from lead-acid batteries can weld together,
causing rapid heat buildup that may result in fire and serious
personal injury.
As many as five batteries of one type can be charged at the same
time with the Five-Station Battery Charger. To charge either
type of battery, simply attach the battery's connector to one of the
output connectors on the charger. Make certain the selector
switch is appropriate for the battery you are charging before
applying power. Generally the batteries (either type) will attain
full charge within 15 to 18 hours. Occasional or slight over-
charging of the batteries will not hurt them, but it is worthwhile
to avoid frequent or prolonged overcharging.
Prolonged overcharging of nickel-cadmium batteries causes
internal heating of the cells. This heating will eventually make
the nylon separator material deteriorate between the plates,
causing shorts and hastening end-of-life for the cell. Prolonged
overcharging of lead-acid batteries forces the battery to vent
water from the electrolyte. The vents are one-way and the water
cannot be replaced. The battery will "dry out" and fail from lack
of electrolyte.
When charging more than one battery, the internal electronics
must be cooled by the internal fan. For adequate ventilation,
allow at least 4 inches (10 cm) of space between the rear panel of
the charger and a wall or other equipment.
The Five-Station Battery Charger has a 1-ampere circuit breaker
mounted on the rear of the charger cabinet. If the circuit breaker
trips, you can reset it by pressing the button. If the circuit
breaker trips again quickly or repeatedly, there is probably some-
thing wrong with the electronic circuitry. Check to make sure the
VOLTAGE SELECTOR switch is in the proper position for the
power source you are using. Verify that the BATTERY
SELECTOR switch is in the proper position for the type of
battery you are charging. If the circuit breaker still continues to
trip after you have checked all these things, there may be an
internal problem.
For cleaning, use water with a small amount of detergent. For
harder to remove stains, use isopropyl alcohol.
965 Five-Station Battery Charger
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