The application or model W001-Drinking Water Alarm Monitoring and Security comprises of all means and technologies that requires real-time monitoring of produced water to validate its purity.
Arenal offers two steps how drinking water is protected:
There are numerous sensors on the market to determine low concentration contaminations. Unfortunately, none of them are selective enough to determine all kind of contaminations and besides the sensitivity of a contamination on a sensor is different for another contamination.
That makes it difficult to choose one sensor for all types of contaminations. A mixture of sensors needs to be selected.
Arenal offers three types of sensors that are commonly used:
Generally we do not suggest to use conductivity sensors, as they are driven by electricity and only react to ion changes, which seems ok in the first place. Firstly, organic changes are not observed, and secondly, in comparison with ultrasonic sensors, the core technology is electrical conductivity, which makes the requirement for the electrical design of the electronics very critical. In case of variations in outside temperature, the effect of the current is visible, which makes its sensitivity for ion changes less. In case of ultrasonic spectroscopy, the sensitivity to ion changes in the water is based on physical property analysis, which is not influenced by electrical design of the transmitter at all.
Thus, by replacing conductivity sensors in this application by ultrasonic spectroscopy sensors, the additional value is higher sensitivity to ion changes and sensitivity to organic changes.
When choosing ultrasonic spectroscopy sensors, we herewith help you selecting the correct products. Arenal offers solutions for applications with a variety of embodiments. Actually in most cases only the probe size, body shape, body material and sensor material changes, while the transmitter and Analysers keeps the same.
Depending on the application and requirement of the customer, submersible or inline sensors are used. But the small laboratory probes suit as well.
Although the ceramic ultrasonic and thermal sensors of Arenal PCS can be applied in any liquid in the world, it is mainly designed for abrasive slurries and pastes, which can be found in Mineral and Metal processing plants, dredging and tunneling. Arenal is actively involved in industrial slurries, like in CMP, pigment and catalysts slurries and battery pastes and potato starch slurries.
The optimal slurry for measuring density, flow and massflow is a homogene turbulent slurry in a pipe or vessel, with a large concentration of particles below 1 mm.