Flow rate measurement on systems to fight legionella
Requirement
Many water circuits provide optimum living conditions for legionella. At temperatures between 25 and 50°C and long dwell times in sweet as well as in salt water undesirable biofilms and legionella can develop quickly. Technical measures to decrease this growth of legionella, as provided by the patented solution from Holland Watertechnolgy, can eliminate the development of biofilms and legionella in drinking water and cooling circuits. The measurement of the volume flow to ensure exact dosing of the copper and silver ions is essential for the reliable operation of this system.
Implementation
The system from Holland Watertechnology uses innovative and patented technology. This technology only uses accurate and reliable sensors and machine parts such as the magnetic-inductive flow sensor of type SM8100 from ifm electronic. This sensor and also the SM6100 and SM7100 versions are KTW-compliant (KTW = level of polymers in drinking water) and thus comply with the principles referring to the use in drinking water systems. The SM magnetic-inductive volumetric flow sensor measures the current flow and provides this information as an analogue 4...20 mA signal to the dosing unit. The required copper and silver ions are dosed according to the measured water quantity so that the growth of legionella and biofilms is prevented.
Customer benefits
The drinking water standards are very high world-wide. The drinking water quality is monitored to the highest international directives. Products that are used in drinking water systems have to comply with many criteria. Holland Watertechnology only uses products of the highest quality such as the magnetic-inductive volumetric flow sensor SM8100 to meet these requirements. The unit provides indication of the volumetric flow quantity, the total quantities and the temperature in compact design. High accuracy, repeatability and measurement dynamics ensure a high quality standard.
Many water circuits provide optimum living conditions for legionella. At temperatures between 25 and 50°C and long dwell times in sweet as well as in salt water undesirable biofilms and legionella can develop quickly. Technical measures to decrease this growth of legionella, as provided by the patented solution from Holland Watertechnolgy, can eliminate the development of biofilms and legionella in drinking water and cooling circuits. The measurement of the volume flow to ensure exact dosing of the copper and silver ions is essential for the reliable operation of this system.
Implementation
The system from Holland Watertechnology uses innovative and patented technology. This technology only uses accurate and reliable sensors and machine parts such as the magnetic-inductive flow sensor of type SM8100 from ifm electronic. This sensor and also the SM6100 and SM7100 versions are KTW-compliant (KTW = level of polymers in drinking water) and thus comply with the principles referring to the use in drinking water systems. The SM magnetic-inductive volumetric flow sensor measures the current flow and provides this information as an analogue 4...20 mA signal to the dosing unit. The required copper and silver ions are dosed according to the measured water quantity so that the growth of legionella and biofilms is prevented.
Customer benefits
The drinking water standards are very high world-wide. The drinking water quality is monitored to the highest international directives. Products that are used in drinking water systems have to comply with many criteria. Holland Watertechnology only uses products of the highest quality such as the magnetic-inductive volumetric flow sensor SM8100 to meet these requirements. The unit provides indication of the volumetric flow quantity, the total quantities and the temperature in compact design. High accuracy, repeatability and measurement dynamics ensure a high quality standard.
Products used in this application
