6 Maintenance and Troubleshooting
UPS IST7 Series (60K-200K)
User Manual
100
6 Maintenance and Troubleshooting
This chapter mainly introduces the UPS maintenance guide, battery daily maintenance, battery
replacement announcement and troubleshooting, etc.
6.1 Maintenance Guide
Proper maintenance is the key to make the device operate in the best status and with a longer service
life.
6.1.1 Safety Precautions
To ensure human safety and equipment security, observe the following precautions.
Please keep in mind that there is dangerous voltage inside the UPS even if the UPS does not
operate. Before maintenance, use a multi-meter to check the voltage and make sure that the UPS
is completely shut down and stays in safe status.
Before close the battery switch at any time, use a multi-meter to measure if the voltage of multi-
meter is normal and the polarity is reverse connected. If the result is abnormal, it is strictly
forbidden to close the battery switch.
Do not wear any conductive metal objects during operation, such as ring, watch.
Observe safety regulations strictly. If any doubt, consult professionals.
6.1.2 Preventive Maintenance
To improve the UPS reliability and efficacy, perform the following maintenance tasks on a quarterly
basis.
Keep the operating environment free from dust and chemical pollutants.
Check if the wiring terminals on input, output cables are in good contact every half year.
Check the fans work status periodically and avoid blocking the air vents. If a fan is damaged,
maintain or replace it in time.
Check the voltage of batteries periodically and ensure that the battery voltage is within the
normal range.
Check the UPS status periodically and ensure that any fault can be found in time.
6.2 Battery Maintenance
Battery charge requirements
Summary of Contents for IST7 Series
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