Alpha Technologies XM2, XM2-HV, XM2-HP User Manual

Page 9

Safety Precautions, continued

• Do not allow live battery wires to contact the enclosure chassis. Shorting battery wires can result in a fire

or possible explosion.

• Always replace batteries with those of an identical type and rating. Never install old or untested batteries.
• Avoid using uninsulated tools or other conductive materials when handling batteries or working inside the

enclosure.

• Remove all rings, watches and other jewelry before servicing batteries.
• Spent or damaged batteries are environmentally unsafe. Always recycle used batteries. Refer to local

codes for proper disposition of batteries

• The Intelligent CableUPS has been investigated by regulatory authorities for use in various Alpha

enclosures. If you are using a non-Alpha enclosure, it is your responsibility to ensure your combination
conforms to your local regulatory requirements and the power supply remains within its environmental

specifications.

Battery Safety Notes

• Always refer to the battery manufacturer’s recommendation for selecting correct “FLOAT” and “ACCEPT”

charge voltages. Failure to do so can damage the batteries.

• Verify the power supply’s battery charger “FLOAT” and “ACCEPT” charger voltage settings.
• Batteries are temperature sensitive. During extremely cold conditions, a battery’s charge acceptance

is reduced and requires a higher charge voltage; during extremely hot conditions, a battery’s charge
acceptance is increased and requires a lower charge voltage. To compensate for changes in temperature,
the battery charger used in the power supply is temperature compensating. Refer to Section 1.2.2 for

instructions on connecting the Remote Temperature Sensor (RTS).

• If the batteries appear to be overcharged or undercharged, first check for defective batteries and then

verify the correct charger voltage settings.

• To ensure optimum performance, inspect batteries every three to six months for signs of cracking, leaking

or unusual swelling (note that some swelling is normal).

• Check battery terminals and connecting wires. Clean battery terminal connectors periodically and

retighten to approximately 110 inch-pounds (or to manufacturer’s specifications if not AlphaCells). Spray
the terminals with an approved battery terminal coating such as NCP-2.

• Check battery voltages UNDER LOAD. Use a load tester if available. Differences between any

battery in the set should not be greater than 0.3Vdc.

• Refer to the battery manufacturer’s recommendation for correct charger voltages and the power

supply operation manual for corresponding charger settings.

• Number the batteries (1, 2, 3, etc.) inside the enclosure for easy identification (refer to the

appropriate enclosure installation guide).

• Establish and maintain a battery maintenance log.

If installed, disconnect the AlphaGuard prior to measuring battery voltage.

NOTE:

Even with a AG-CMT present in the system, any battery which fails the 0.3V load test

must be replaced

with an identical type of battery.

NOTE:

Always verify proper polarity of cables before connecting the batteries to the power module. The
batteries are clearly marked for polarity. If the cables become interchanged at the batteries the battery
breaker will trip.

NOTE:

017-805-B0-010 Rev. K2