Cover MR Series, User Manual

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MR Series 600K
User Manual
99
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 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 multimeter to check the voltage and make sure that the UPS
is completely shut down and stays in safe status.

Before close the battery breaker at any time, use a multimeter to measure if the voltage of wiring
terminal is normal and the polarity is reverse connected. If the result is abnormal, it is strictly
forbidden to close the battery breaker.

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 reliability and efficacy of the UPS, 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 sundries blocking the air vents. If a fan is
damaged, maintain it or replace it in time.

Check the voltage of batteries periodically, ensure that the battery voltage is within the normal
range.