D-Opto Optical Dissolved Oxygen Sensors

Zebra-Tech Ltd is pleased to introduce the D-Opto range of optical dissolved oxygen sensors. The D-Opto range includes the SDI-12 D-Opto, and the D-OptoLogger. Both instruments have been specifically designed for long term environmental monitoring of dissolved oxygen in streams, and rivers.

Jobs that require long term dissolved oxygen measurements with minimal drift; the D-Opto sensor is for you. D-Opto optical sensing technology is not only highly stable, but provides very accurate and reliable longterm DO measurements not possible with conventional DO sensing technologies. Additionally no oxygen is consumed during the measurement cycle removing the necessity for mechanical stirring in low or no flow. D-Opto has no consumable replacements and is un-affected by sunlight, reducing the operation costs. Designed for harsh conditions, both instruments feature a biofouling control system to minimise the build up of bio-growth.

The SDI-12 D-Opto has a very low power requirement, making it suitable for remote sites. An SDI-12 instrument is simple to integrate with dataloggers. The instrument is supplied with a small interface module to ease installation into an established logging system. This interface also enables a computer to be directly connected to the D-Opto without disconnecting the instrument from the datalogger.

D-OptoLogger is a self contained DO logging instrument. It incorporates an optical DO sensor, logger and battery in a small, rugged underwater housing. The D-OptoLogger records percent saturation, oxygen concentration and temperature at user set logging intervals. Depending on the logging interval, the instrument can be deployed for up to several months. The instrument is supplied with windows based software for configuring the logger, download data, and calibration.