I. Visual inspection of UPS Battery
Regular visual inspection of the UPS Battery is the most important step in maintenance. Some basic visual checks can be performed to check the appearance of the device. For example, check for dust or dirt buildup. Dust or dirt can clog the vent of the device and cause it to overheat. If yes, clean the dust with a dry cloth or other insulating cleaning tool. In addition, the inspection should also include battery evaluation. Look out for signs of corrosion, leakage, or expansion, as these are signs that the battery needs to be replaced.
In fact, a comprehensive visual inspection also includes an internal component inspection. For example, check that AC input and output capacitors and DC filter capacitors are clean to ensure that there are no signs of cracking or expansion. However, you may be exposed to dangerous currents when performing such checks. Therefore, such inspections should only be performed by qualified personnel, such as electrical engineers, facility electricians, or third parties.
In addition to visual inspection, we should also pay attention to whether there is abnormal sound and pay attention to abnormal smell. Any one of them could indicate a hardware problem.
2. Check the temperature of the UPS Battery machine
Temperature check is another important task in UPS maintenance. Ensure that the temperature around the UPS is within the manufacturer's operating specifications. Thermal scanning is used to check the temperature of the UPS. That is, a non-contact infrared thermometer is used to measure the surface temperature of the shelf. If the UPS is fan cooled, you can use a thermometer to check the temperature of the air leaving the device.
In general, if you have a large number of UPS power supplies to check, it may be better to use an infrared thermal imager because it produces heat-based images that make it easy to locate thermal anomalies in the UPS system.
