Applications Turbidity measurement in raw water Monitoring of flocculation and dosage of flocculants Filtration monitoring of filter performance and back-wash control Turbidity measurement in treated and final waters Turbidity monitoring of water in storage and distribution networks Turbidity measurement in process and waste waters Industries Potable Water Treatment Works Waste water treatment Industrial water production Advantages True non-contact measurement in free-fall stream (models WTM, WTM A, HT) Dual beam measurement in optimized cell(model P) Re-calibration with secondary standard(fully automatic at model WTM A) Lowest stray light levels Virtually maintenance free Convenient operation via touch screen Graphical display of trends and/or values Visualization of measured values over the past monthInnovations with true customer benefits
Non-contact free-fall concept Water passes through the AquaScat models WTM, WTM A and HT without touching the optics. No window fouling and hence, the measured values are not falsified. Very low and high turbidity values can be measured precisely. The entire sample beam is measured which leads to true representative results. Extremely low maintenance is the result.
Dual beam concept At the AquaScat P, transmitted light and scattered light are measured and taken into consideration. The cell is large and the machining is of high quality. The influence of the cell contamination is reduced substantially. Possible interference by colour is completely eliminated. Cell cleaning is minimised.
Very low quantity of stray light The design of the AquaScat in combination with high quality optical components minimizes the quantity of stray light inside. A stable measurement of a few mFNU turbidity is therefore possible. Very low zero drift provides excellent long term stability.
Re-calibration with secondary standard Formazine is used in the factory to calibrate the AquaScat after assembly. For re-calibration,a secondary standard (Zerodur®glass body) is available. Precise re-calibration is possible without the use of Formazine. In the AquaScat WTM A, this re-calibration is done automatically without stopping the water flow.
Integrated control unit The control unit of all the AquaScat family is an integrated colour touch screen. Values, graphs, alarm- and status messages can be presented. An internal data logger allows recalling and displaying measured data of the last 32 days.