APC-ES500, there are electric also Di Di's ring. Took a laptop and cat, trouble. Is there any way to tune his voltage range. The sound of the uncomfortable.
What is the light at the same time? You can refer to the instructions, you can try to do something, not the words to contact the seller
It is estimated that the relay does not attract a good cause, usually caused by dust, you can use dry air blowing
Ups power is always the reason for the drop:
1, UPS is in battery-powered state, please check whether the electricity is normal.
2, the UPS is battery-powered, the machine shows the power supply time is 0, please check the battery voltage is normal.
You are very experienced, must be the scope of the mains input over the use of UPS, which led to UPS constantly in the mains and battery status switch back and forth, the relay also kept the sound.
APC UPS's mains input range can be adjusted, but the mains range, the rated load will be reduced, but with your notebook and the cat is no problem. Adjust the input voltage range need to UPS and computer through the communication port (such as RS232) connection, the use of brand-specific software to adjust, this requires you to contact APC customer service, they will help you.
PS: brother, just want to ask, why do you use the notebook to bring the UPS, it is not their own battery?
The machine itself has a certain noise, the environment clean point of the maintenance of a small noise point. If there is a sound alarm that there are many cases, power failure after the battery, voltage instability caused by battery power supply, as well as machine failure will have alarm and so on.
UPS (Uninterruptible Power System), that is, uninterruptible power supply, is a kind of energy storage device, inverter as the main component of the constant voltage constant frequency uninterruptible power supply. Mainly for a single computer, computer network systems or other power electronic equipment to provide uninterrupted power supply. When the mains input is normal, the UPS will be powered by the mains supply to the load, this time the UPS is an AC mains regulator, and it also charge the battery to the machine; when the electricity interruption (accident power failure) , UPS immediately put the battery power, through the inverter conversion method to continue to supply 220V AC load, so that the load to maintain normal work and protect the load soft, the hardware is not damaged. UPS devices are usually protected against excessive voltage and low voltage.
