OPTI-UPS DS3000D(L) - Manual (Page 5)

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5. UPS OPERATION
5.1 Check Prior to Start Up
1. Ensure the UPS is in a suitable positioning.
2. Check input cord is secured.
3. Make sure the load is disconnected or in the “OFF” position.
4. Check if input voltage meets the UPS rating required.
5.2 Storage Instruction
Disconnect input power in rear panel if you will not use it for long period. If the
UPS is stored over 3 months, please keep supplying power to the UPS for at
least 24 hours to ensure battery fully recharged.
5.3 Operation Procedure
Please follow the instructions below for UPS operation.
1. Once the AC source is connected, the
LCD Display shall light up immediately
to display first the main menu of
greeting context and the Normal LED is
blinking to indicate ready to switch on
the inverter.
2. By pressing the Enter-key and the Down-key simultaneously for 3 seconds,
the UPS will start up after two beeps and Normal LED lights up to indicate
the power is from its inverter to the load.
3. When the Down-key and the Up-key are pressed simultaneously for 3
seconds, the inverter will be turned off after two beeps and the UPS is on
the standby status (LCD display illuminates and Normal LED is blinking)
until AC source is disconnected.