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Power Transformer Cooler Pump and Fan Monitoring unit

Accurate Controls are approved suppliers, installers and commissioners of Ashridge Engineering Limited transformer electronic monitoring equipment.

PFM Watchdog


PFM Watchdog

Standard Features

  • Monitors pumps & fans during normal operation and in exercise mode.
  • Indicates individual pump and fan failure.
  • 18 monitored inputs in 3 configurations for fan only, single stage or dual stage cooling systems
  • (18 Fan inputs or 2 Pump & 16 Fan inputs)
  • LED indication of channel status & alarm output and unit ON/OFF.
  • Optional programmable cooler exercising unit available .
  • Can be retrofitted to existing installations.
  • On-site fitting service available
  • 5 year warranty available when supplied & installed by Accurate Controls



Spares and Options:


Please contactus for further information.