New Highly Efficient UV-LED Transmittance Monitor

The new Aquionics (USA) PearlSense T254 is the world’s first transmittance monitor to use UV-LED technology. The monitor provides UV disinfection system manufacturers and operators with highly accurate UV transmittance (UVT) readings in all conditions over an extended lifetime, ensuring proper UV dosing and efficient operation.

PearlSense T254 features a patent-pending fixed position single lamp and sensor design with an automatic two-point reference check. The design provides more accuracy than products using conventional UV lamps and sensors. A UV-LED light source allows instant activation and highly efficient, mercury-free operation. The PearlSense T254 is capable of battery and solar-powered operation, and can be used in a variety of configurations including handheld operation, installed directly in a pipe or bracket-mounted in an open channel environment. The monitor can withstand unlimited cycling without lamp degradation.

UVT is used to track changes in water quality, and can also be used to alert to the presence of organic compounds and other issues. UVT values are communicated to the control system of a UV reactor and used in calculating the most efficient treatment process. From large municipal water treatment facilities to small food and beverage applications, consistently accurate UVT values can save energy and ultimately provide superior water quality.