Omron BN100T, Instruction Manual, Page: 55 / 110

3 Check and start operation
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4 Maintenance and Inspection
4-1 Checking the battery
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4-1
4 Maintenance and Inspection
For cautions when maintaining the UPS, refer to “Caution (for maintenance)” shown in the
“Safety precautions” of the beginning of this manual.
4-1 Checking the battery
There are two kinds of check methods of the battery as follows.
 Check the five-step display on the estimated life expectancy of the battery (See “3-4-2
The menu list of LCD”)
 Perform the self-diagnosis test (See “4-1-2 Self-diagnosis test”).
4-1-1 Check the display on the estimated life expectancy
of the battery
The current estimated life of the battery can be checked in “Measurements”-“Longevity” in
the LCD menu by means of a five level display.
4-1-2 Self-diagnosis test
This test performs a failure diagnosis on the unit and performs a test to check for battery
deterioration.
Use the procedure below to check whether a circuit failure has occurred inside the unit and
whether battery replacement is required.
There are two, automatic testing and manual testing, in the self-diagnosis test as follows.

Automatic testing
The self-diagnosis test is automatically performed at the factory settings, at the following
timing in the state that the UPS is connected to a commercial power source and the charge
of the battery has been completed. User’s operation to start the test is unnecessary.
 When the power switch is turned ON from OFF
 Performed with one time per four weeks on the condition that the power switch is ON
When charge of the battery is not completed, the self-diagnosis test is not performed
immediately.
It is performed automatically after the completion of charge.

Manual testing
The self-diagnosis test can be performed manually by selecting “Control”-“Start Function
Test” in the LCD menu.
By performing the self-diagnosis test, backup operation is started automatically.
The beeper does not sound at this time.
After the test is completed, UPS automatically returns to the normal operation.
When the message of an error is displayed on the LCD screen, take measures in
accordance with the solution shown in the above “3-1-7 Interpreting icons, LEDs, and
beeps, and etc.”
Additional Information
 You can select the execution condition for the self-diagnosis test from the options
below by means of “Setting” - “Battery Settings” - “Battery Settings” - “Function
Test” in the LCD menu.
“Start up/Every 4w (Default)”, “Start up”, “Every 4w”, or “Disable”
 The self-diagnosis test can be performed also from attached UPS monitoring
software.
For more details, refer to the online help of UPS monitoring software.