7
Storage
All connected equipment should be turned off, then disconnected from the UPS to avoid battery
drain. Unplug your UPS from its AC receptacle, then press and hold its ON/OFF button to
deactivate it. Your UPS is now ready for storage. If you plan on storing your UPS for an
extended period of time, fully recharge the UPS batteries once every three months by plugging
the UPS into a live AC outlet and letting the UPS charge for 4 to 6 hours. If you leave your UPS
batteries discharged for an extended period of time, they will suffer a permanent loss of capacity.
Service
If returning your UPS for service, contact your local Tripp Lite dealer or distributor. They will
refer you to a service center. Please carefully pack the UPS using the ORIGINAL PACKING
MATERIAL that came with the unit. Enclose a letter describing the symptoms of the problem.
If the UPS is within the warranty period, enclose a copy of your sales receipt.
Storage & Service
Battery Replacement Door
Under normal conditions, the original battery in your UPS will last
several years. Battery replacement should be performed only by
qualified service personnel. Refer to “Battery Warnings” in the Safety
section on page 2.
Power Sensitivity/Lowline Adjustment
This dial is normally set fully counterclockwise, which enables the UPS
to protect against waveform distortions in its AC input. When such
distortion occurs, the UPS will normally switch to providing PWM
sinewave power from its battery reserves for as long as the distortion
is present. In some areas with poor utility power or where the UPS’s
input power comes from a backup generator, frequent brownouts and/or
chronic waveform distortion could cause the UPS to switch to battery
too often, draining its battery reserves. You may be able to reduce
how often your UPS switches to battery due to waveform distortion
or brownouts by experimenting with different settings for this dial. As
the dial is turned clockwise, the UPS becomes more tolerant of
variations in its input power’s AC waveform and reduces the voltage
point at which it switches to battery. NOTE: The further the dial is
adjusted clockwise, the greater the degree of waveform distortion and
the lower the input voltage the UPS will allow to pass to connected
equipment. When experimenting with different settings for this dial,
operate connected equipment in a safe test mode so that the effect on
the equipment of any waveform distortions in the UPS’s output can be
evaluated without disrupting critical operations. The experiment
should last long enough to assure that all expected line conditions are
encountered.
Automatic Voltage Regulation
During brownouts, your UPS will automatically correct low AC line
voltage. When automatic voltage regulation is operating, your UPS
may be heard to click gently. This is a normal, automatic operation of
your UPS, and no action is required on your part.
Basic Operation
continued
NORM DELAY
200208108 93-2089 OmniSmart725 Owner’s Manual.qxd 9/12/2002 9:22 AM Page 7