Features and Performance
Function for Saving Energy (Stand-by)
- High and steady efficiency
- Outstanding overload capabilities
- Digital regulation and control by microprocessor
- Electrical supply to any type of appliance
- Full internal protection
- Stand-by level adjustable from a very low threshold
- Battery lifetime optimization (B.L.O.) function
The inverters from the AJ 500-12 are equipped with a stand-by system (also available in the models AJ 275-12/350-24/400-48 with the option -S). The stand-by is an energy saving system which turns off the inverter intermittently when no electrical appliance is detected.
The detection threshold is set by default at 2W. On models from AJ 500-12 and upwards, it is possible to deactivate this function or to modify the threshold.
Alarm by voltage flickering
When the acoustic signal is deactivated or when the inverter is out of acoustic reach, it might be necessary to be warned about the imminent stop of the inverter due to "battery under voltage" or "overheating". If this function is activated, the output voltage will slightly flicker (max.-20%); leading to a variation of the light's intensity, and thus indicating the imminent stop in the energy supply. The user can then choose to reduce his consumption in order to secure the supply to priority loads (for instance, lighting).
Battery Lifetime Optimization (B.L.O.) Function
A battery's cycle in a permanent ongoing load state from 0 to 30% is often the cause of premature battery failures. This case is particularly frequent in small, individual solar installations.
In order to improve the battery lifetime in these situations, the AJ inverters offer an automatic voltage disconnection threshold adjustment. This drives the electrical appliance to adapt its consumption, in order to protect its battery. This adjustment raises the voltage disconnection threshold and therefore moves up the state of charge, enabling the battery to fully recharge in the long run.
This function is deactivated by default, a state that can be changed easily and at anytime by the user.
Optional Built-In Solar Charge Controller (-S)
A built-in optional 3 STEP charge controller (I/U/Uo) can be supplied, making the AJ inverter an "all in one" device for a solar installation.