Basic Operation | Tripp Lite UL1778 manual

200208108 93-2089 OmniSmart725 Owner’s Manual.qxd 9/12/2002 9:22 AM Page 5

Basic Operation continued

•CHARGE ONLY Mode: DISABLES battery backup. UPS Conditions: The UPS charges its battery and supplies power at its receptacles when it is receiving utility line power. The “” indicator light is flashing. Setting Advantages: Continues to charge the battery when power is present while turning OFF the inverter to prevent battery depletion during power outages when equipment is not in use.

Cold-Start Your UPS: You may “cold start” your UPS and use it as a stand-alone power source when utility power is not present, providing that the UPS battery is charged. To “cold start” your UPS, press and hold the ON/OFF button until you hear a beep (about 2 seconds), then release it. The “ ” indicator light will illuminate and AC power inverted from stored battery power will be provided at its receptacles.

Shut Down Your UPS: Press and hold the ON/OFF button when AC line power is absent (i.e. during a blackout, or when the UPS is unplugged) to deactivate your UPS.

Use the MUTE/TEST button to do two things:

Silence the UPS On-Battery Alarm: Press and hold this button to silence the UPS On-Battery alarm, a series of short beeps followed by a brief pause that is activated when the UPS is providing AC power from battery. Note: When the battery is nearly depleted, the Low Battery alarm—a continuous beep that cannot be silenced—will alert you to immediately shut down connected equipment.

Run a Self-Test:Your UPS performs a self-test whenever it is first plugged in. To have it run a self-test at another time, leave your connected equipment on. With your UPS plugged in and in the UPS mode, press and hold this button until you hear a beep (about 2 seconds) then release it.

Results of a Self-Test:All the LEDs will be lit and the UPS will emit several short beeps as it momentarily switches to battery to test its charge and load capacity. The test will last at most 10 seconds. If the inverter is overloaded, the “ ” LED will stay lit and the UPS will continue to beep after the test; if this happens, remove some of the load and run the self-test again. If the batteries seem weak, the “ ” LED will stay lit and the UPS will continue to beep after the test; if this happens, let UPS charge its batteries for 12 hours and repeat the test. If the condition persists, contact Tripp Lite for service. CAUTION: Do not unplug your UPS to test its batteries. This will remove safe electrical grounding and may introduce a damaging surge into your network connections.