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SERVICE CONTRACTS
Calibre Power are proud of there reputation as having one of the most thorough annual maintenance procedures for AC and DC UPS systems available. This includes the following:

  • Record UPS steady state voltages and currents.

  • Check all UPS AC/DC alarm settings where possible and check that they repeat at any remote locations if applicable.

  • Thoroughly inspect pcbs for signs of stress

  • Check all connections for security and signs of stress. This is completed physically as well as monitoring all connection points with an infra-red heat sensor.

  • Check operation of all fans if applicable.

  • Inspect both AC and DC capacitors for leaks and other forms of stress.

  • Check synchronisation between UPS’s and bypass supplies. This is completed using a Fluke scopemeter and all waveforms are saved, analysed and presented in our report.

  • Record load voltage and current waveforms. This is completed using a Fluke scopemeter.

  • Perform transfer checks on UPS’s. This is completed using a Fluke scopemeter.

  • Carry out a mains fail test to ensure that the system is able to run on battery power.

  • Thoroughly clean out panels.

  • Carry out any repair work that is required to bring the UPS system back into normal operation.

For information on UPS battery maintenance please click on this text.