Zebra-Tech - Model D-Opto -Shutter System
For harsh environments and situations where bio-fouling is extreme, the D-Opto Shutter system can be fitted to the D-Opto Sensor (not currently available for the D-Opto Logger). The Shutter is a mechanical device that simply attaches to the side of the D-Opto, and is controlled by the same data logger attached to the D-Opto.
Between measurements the Shutter completely covers and protects the optical sensing window of the D-Opto. This prevents biofouling from developing, sediments from accumulating, and protects the optical window from impact. Whenever a measurement is required, the shutter opens to expose the sensing window.
The D-Opto Shutter is simple to fit and straightforward to intergrate into existing installations. Power consumption is very low. The D-Opto Shutter features self monitoring on-board intelligence that ensures reliable operation, even in the most hostile unpredictable environment.