Field Of Application; Measuring Principle Of The Sensor Nicavis 705 Iq Ts - wtw NiCaVis 705 IQ TS Operating Manual

Overview
Measuring location
Ultrasound cleaning
system
Compressed air
cleaning (option)
6
1.2

Field of application

The NiCaVis 705 IQ TS is an online sensor for the on-site determination of
nitrate and carbon sum parameters in waste water treatment plants.
The range of application comprises control, feedback control and monitoring.
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.
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 NiCaVis 705 IQ TS

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 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.
NiCaVis 705 IQ TS
ba77189e01 05/2017