Q45D cuts energy consumption

Analytical Technology's (ATI) optical Q45D dissolved oxygen monitor with Auto-Clean system reduces energy consumption by up to 25 per cent in wastewater treatment plants.

The monitor is designed to provide reliable oxygen measurements in aeration processes.

The Auto-Clean system uses high-pressure blasts of air to remove any material that builds up on the membrane; this prevents inaccurate readings and reduces maintenance.

Auto-Clean can be programmed at user-defined intervals from once per hour to once per day.

When the sensor is kept clean, it reads at accuracy levels of better than 0.1ppm, meaning energy costs are lower as energy is not wasted on producing false or repeated readings.

Analytical Technology's Q45D dissolved oxygen monitor is available with a choice of two sensors: traditional galvanic or optical.

The galvanic sensor uses a robust 5 mil Teflon membrane that acts as a barrier to allow molecular oxygen to diffuse into the reaction cell, where it is reduced at the working electrode, producing a small current that is proportional to the oxygen concentrate.

The optical system uses a fluorescence quenching technique to measure dissolved oxygen.

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