Application Note | February 1, 2013

Benefits Of UV Transmittance (UVT) Field Testing For Selling & Servicing UV Disinfection Systems

Source: Real Tech Inc.

The Real UV254 'P' series portable meters can be used to measure UV transmittance (UVT) in a number of situations, and are especially beneficially when working with small UV disinfection systems. The following cases outline two situations in which Real Tech's portable meters are invaluable.

Servicing Small UV Disinfection Systems
An existing customer is experiencing a problem with a UV disinfection system. Perhaps, the system is in alarm or maybe the customer has received poor microbiological test results. In either case, this indicates that the water is not receiving a high enough dose of UV light to disinfect the water. This may be due to any of a number of different factors. Perhaps the UV lamps are reaching the end of their life and need to be replaced, or maybe the quartz or sensor is fouled by mineral build-up and requires cleaning, or possibly there is some kind of warranty issue you will need to take up with the manufacturer, or perhaps the UVT is low and is preventing proper UV dose to the water. Note that the UVT may change somewhat throughout the year.

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