Eldes EPIR3 - Back-Up Battery, Mains Power Supply Status Monitoring and Memory

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EPIR3 User Manual v1.3
7.10. Back-up battery, mains power supply status monitoring and memory
The system comes equipped with a back-up battery maintaining power supply of the system when the
mains power supply is temporally lost. The implemented feature allows the system to perform a self-test
on the back-up battery and notify preset user phone number by SMS text message if:
• battery has failed and requires replacement – battery resistance is 2,5 or higher; self-tested every
10 days.
• battery power is running low – battery voltage is below 8V; constantly self-tested.
If the household electricity is unstable in the system installation area, the system may temporally lose
its power supply and continue operating on the backup battery power. The system supervises the mains
power supply and noties preset user phone number by SMS text message as well as indicates system
fault condition on the keypad (see section 3.3.8. Fault messages) after 60 seconds after the mains
power loss. When the mains power restores, after 120 seconds the system will notify the user by SMS
text message and the keypad will no longer indicate system fault.
The conguration settings are stored in a built-in EEPROM memory, therefore even if the system is fully
shut down, the conguration remains.
For more details on how to manage back-up battery and power supply notications, please refer to
section 7.9. System notications.