UV lamp meter ends replacement uncertainty for building engineers

A new ultraviolet-C germicidal (UV-C) Lamp Hour Meter from UV Resources alerts building engineers to potential disruptions to the efficiency-boosting technology’s benefits, including decreasing HVAC energy costs by an average of 10-25 percent.

UV-C lamps installed in HVAC/R systems have been shown to improve indoor air quality, increase airflow, boost heat exchange efficiency and reduce maintenance needs, according to a release. Moreover, the savings generated by the efficiency-enhancing UV-C equipment is a fraction of the average $0.15 per cfm installation investment.

Over time, UV-C lamps will lose energy yield, regardless of the make or model. Left undetected, this decreased germicidal output will allow harmful microorganisms to propagate on HVAC cooling coils, drain pans, upper air spaces, etc.

Able to be installed anywhere, the UV-C Lamp Hour Meter solves the problem by measuring the lamps’ total run time from installation against industry standard data that correlates with roughly a 9,000-hour annual lifespan. After 8,041 hours, or about 11 months, the meter’s solid green LED light and BMS signal changes to a slow, intermittently flashing orange LED and signal as an early reminder that lamp replacement is imminent. After 9,000 hours, a red LED and signal begin to flash rapidly, indicating the immediate need for lamp replacement. Once the lamps are replaced, the meter is reset.

“Historically, only about 20 to 30 percent of building engineers actually replace their UV-C lamps, usually because they’re installed in easily-overlooked areas,” said Dan Jones, president of UV Resources. “The UV-C Lamp Hour Meter continuously tracks lamp life and reminds engineers before it’s time for a change-out, giving them time to preserve the indoor environmental quality (IEQ) and efficiency benefits garnered through UV-C.”

Due to its stand-alone nature, the UV-C Lamp Hour Meter can be installed anywhere convenient for the building engineer and be incorporated into a building management system, in which case a 5V signal will be used for a relay connection.

Other key features of the Lamp Hour Meter include:

  • An easy-to-read LCD screen that displays the UV-C lamps’ total elapsed run-time from the moment of installation.
  • Green, yellow and red LED visual lamp indicators that signal the lamps’ status to building engineers (green for fully operational; orange as a warning for upcoming replacement need; red for immediate replacement need).
  • 5V indicator signal for remote monitoring by BMS systems.
  • Dynamic memory that allows the meter to pick up where it left off in case of power loss.
  • A push-button reset of the lamp-life timer to zero hours after replacement.
  • Durable construction consisting of high-performance industrial grade plastic impregnated with black-carbon for structural integrity.
  • Mounting tabs for simple installation.
  • A terminal block featuring screw-down electrical clamps, 5V out-signal and power connections using solid or stranded wire.
  • The ability to be powered by a 24V wall adaptor or hardwired.


Topics: Automation and Controls, Building Owners and Managers, Energy Audit / Energy Management, Energy Saving Products, Great Commercial Buildings, Healthy & Comfortable Buildings, HVAC - Heating, Cooling, and Ventilation, Indoor Air Quality (IAQ), Interiors, Office Buildings, Technology, Ventilation

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