BNB75T/BNB300T Instruction Manual
4
Checking the contents
Check whether all the package contents are included and there is no damage found on their ap-
pearance.
If you should notice defects or anything wrong, contact us; OMRON Electronic Systems & Equip-
ments Customer Support Center.
Instruction manual (Japanese/English)............................................1 each
Battery pack fixing screw (Spare) ....................................................1
Battery replacement date label........................................................1
Replacing the battery
The battery can be replaced while the unit is stopped (power supply output stopped).
Notes
When the unit is used in compliance with UL standards or CE marking, battery re-
placement should be performed or supervised by personnel familiar with the danger
of batteries and the required precautions.
If an input power supply error such as a power failure occurs when replacing the
battery while in operation, backup cannot be performed and output stops.
Do not replace the battery during backup operation. Output will stop.
Additional Information
When the “battery replacement” LED lights up/blinks and beeper sounds, press the
beep stop/test switch for 0.5 seconds to stop the beeper. (Lighting/blinking of “bat-
tery replacement” LED does not disappear.)