Ammonia detector MiniCal III

gasindustrialfor water treatment

Ammonia is one of the most commonly used refrigerants, but unfortunately is a strong irritant with corrosive effects. Ammonia's very aggressive reactions in industrial plants often result in damages, such as leaks in copper pipes. Cooling water circuits using this refrigerant must continuously be monitored for leaks to ensure the long-term safety of the systems and, in case of open systems, to comply with environmental protection regulations. Ammonia leaks must be detected and repaired as quickly as possible to prevent them from causing consequential damage and endangering production processes. Measuring instruments for ammonia detection should therefore be integrated into the secondary cooling circuit. The MiniCal III system was developed specifically for this purpose. Our intensive cooperation with operators of refrigeration plants and our extensive experience have resulted in a powerful system with high usability that is quick and easy to install. Selective measurement for early warning The selective measuring method has proven itself reliable for detecting ammonia leaks in direct secondary circuit testing. The MiniCal III system selectively measures leaks (0.2 ppm) even in the smallest concentrations, whether in normal water basins, in circuits or in brine mixtures such as ethylene glycol, propylene glycol, tyfoxit, pekasol, etc. We differentiate between detection in water circuits and water/brine circuits. Electrodes with selective membranes are used in both cases. Depending on the medium and pH value, the reaction of ammonia to the cooling medium is then detected with an ion-selective ammonium electrode or a gas-sensitive ammonia electrode respectively.