Campbell CH150, Руководство по эксплуатации продукта

Страница: 12 / 28

PS150/CH150 12V Charging Regulators
2
2. Precautions and Tips
For indoor use only.
Risk of electric shock. Dry location use only.
Risk of fire or electric shock. Do not interconnect output
terminals.
Permanent damage to rechargeable cells may result if
discharged below 10.5 V.
Under normal charging conditions with sealed VRLA batteries, hydrogen and
oxygen gasses are produced in relatively small quantities, most of which later
recombines back into water. Aggressive overcharging produces excess hydrogen
and oxygen gasses, resulting in gas venting by means of a pressure activated
valve. Hydrogen gas emitted from VRLA batteries must not be allowed to
accumulate, as it could form an explosive mixture. Fortunately, hydrogen gas is
difficult to contain in anything but a metal or glass enclosure.
Never put VRLA batteries in an enclosure that does not
allow emitted hydrogen gas to be dispersed.
VRLA batteries are capable of providing high surge currents. The 12 V output
terminals of the PS150/CH150 are fused with a 4 A self-resettable thermal fuse,
but there is no fusing for inadvertent bridging of the battery terminals. Accidental
shorting of battery terminals by metallic objects, such as watchbands, can cause
severe burns due to rapid heating and is also a fire hazard.
VRLA battery manufacturers state that “Heat Kills Batteries”. While the
PS150/CH150 can operate from –40° to +60°C, optimum battery life is achieved
with battery operating temperatures ranging from 5° to 35°C
i , per manufacturer’s
recommendations
1
. The PS150/CH150 offer temperature compensation of the
battery charging voltage based on a temperature measurement inside the
PS150/CH150 cases. The CH150 internal temperature measurement likely will
not accurately represent battery temperature for charge voltage compensation
unless the battery is in close proximity to the CH150.
With rechargeable batteries, a charge

discharge

re-charge event is termed a
cycle. In general the most important factor for the service life of a battery is depth
of discharge
1
. For example, decreasing the depth of each discharge from 100% to
50% approximately doubles the number of useful cycles available from the
battery
1
.
Leaving a lead-acid battery in a discharged state for
prolonged periods of time results in the undesirable growth of
large sulphate crystals (sulphating) that are detrimental to
battery performance.
i
Genesis Application Manual – Genesis NP and NPX Series US-NP-AM-002,
June 2006.
CAUTION
WARNING
WARNING
WARNING
WARNING
CAUTION