Density monitoring of hydrogen peroxide is of importance to observe if degassing occurs. Besides being a reactive compound, H2O2 is rather unstable and decomposes into water and oxygen gas in due time. A low density is a measure of decomposition, which means that not enough hydrogen peroxide may remain for decontamination purposes.
Prior to this solution, the amount of hydrogen peroxide dosed was determined by measuring its weight using scales. However, for industrial application weighting is unsuitable due to vibration and draft sensitivity. Moreover, it is batch-wise rather than continuous, which made SKAN look for another solution. The company aimed to provide a high-quality and process-safe solution for long term stability and endurance. The combination of an peristaltic pump in series with the Bronkhorst ML120 mass flow meter indeed is a simple, reliable and future-proof solution for transferring precious content in a safe, fast and efficient way.
The compact and space-saving appearance together with the excellent performance convinced the customer to equip the isolators in-line with Bronkhorst technology. Since they have been introduced to the ML120 technology in 2016, about ten ‘ML120 upgraded’ SKAN isolators are currently in the field. Direct mass measurement, a broad (rescalable) measurement range and the density indication are seen as advantages. Moreover, due to zero stability, an optimised cycle time and the (virtual) absence of dead volume, the device operates at high precision and repeatability. SKAN declares the ML120 mass flow meter as an indispensable core component.