Xylem WTW UV 701 IQ SAC, Инструкция по эксплуатации

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Overview
UV 70x IQ SAC
6 ba77046e02 05/2017
1.2 Field of application
The UV 70x IQ SAC is an online sensor for the on-site determination of the SAC.
The range of application comprises control, feedback control and monitoring.
Measuring location
Ultrasound cleaning
system
The ultrasound cleaning system ensures low maintenance and long-term reli
-
able measurement operation.
The ultrasound source integrated in the sensor excites the measurement
windows to produce vibrations in the ultrasound range. The
movement of the surface as a result of this prevents the growth of
pollution in almost all cases and, thus, ensures reliable measured
values during continuous operation.
Compressed air
cleaning (option)
The sensor is designed to be equipped with an additional compressed air-driven
cleaning system, which supports the ultrasound cleaning system as necessary.
1.3 Measuring principle of the sensor UV 70x IQ SAC
The sensor operates according to the measuring principle of spectrometry.
Any substance present in a measuring solution attenuates a light beam that
penetrates the measuring solution. The attenuation (absorbance) of the light
beam is measured for 2 individual wavelengths.
The extent of the absorbance depends on the amount of the substance.
With this measuring principle, measuring does not take place continuously but
at intervals.
e.g. waste water treatment plants, surface water