The water pressure-proof UVC-SE sensors serve as robust, long-term stable measuring heads for the precise measurement of UV-C irradiances of low-pressure mercury lamps and amalgam lamps in water disinfection and wastewater systems. The sensor can be exposed to pressure of up to 10 bar.
A long-term, stable high-sensitivity photo diode with a large active area of 1 cm² is used. This provides low noise and improved sensitivity, below 260 nm, compared to SIC sensors. Superior corrosion resistance and long-term stability is also achieved through the use of appropriate materials. No aging is determined over a period of one year. The sensors are calibrated with traceability to the PTB, the German national test authority.
The integrated electronics produce a signal voltage that is transmitted to the PLC or panel meter RM-32, so that inferences are minimized. Operating voltage and output signal can be selected to match the measurement task or PLC interfaces. For small control tasks, the sensor can be connected to RM-32, which shows the current irradiance on a 3.5-digit digital display and switches two relay contacts with adjustable warning and alarm signals.
|Measuring range||0 - 1000 W/m²|
|Spectral range||180 - 280 nm|
|Selectivity||above 280 nm better than 4%|
|for low-pressure HG lamps|
|Remaining sensitifity||around 650 nm|
|Housing material||Stainless steel|
|Water pressure||up to 10 bar|
|Connector G 3/4“|
|Operating voltage||+24 V, +12 V or ±5 V|
|Operating current||<15 mA|
|Output||0 - 10 V, 4 - 20 mA or 0 - 1 V|
|Operating temperature||0 to 40 °C|
|Storage temperature||-10 to 40 °C|
|Humidity||< 80%, non-condensing|
|Cable||2 m – 10 m|
|Sensor connector||M12 (5-pole)|