• DN 15 pipe diameter
• Process connection: Thread connection R ½
• Four measurement parameters: Flow rate, totalizer, temperature, operating pressure
• Direct compressed air monitoring with simultaneous display of three measurement values thanks to TFT display as standard
• Integrated measuring section prevents measurement errors
• Best system integration thanks to two analog outputs 4 to 20 mA
• Measurement according to the calorimetric principle: No pressure loss during measurement

Compressed Air Meter DN15 (1/2”) The testo 6451 compressed air meter enables you to carry out accurate compressed air consumption measurements, consumption and leak monitoring and flow measurements in your compressed air system. The compressed air meter can also be used to carry out a peak load analysis in order to determine whether you are generating compressed air of sufficient capacity. This creates transparency when it comes to compressed air consumption and can help you save energy, reduce costs and implement a targeted environmental management system (e.g. as per ISO 50001 or ISO 14001). Overall, these measures can help you find potential for savings or prevent unnecessary investment costs. In industrial companies, compressed air is an important source of energy which incurs high consumption costs. Testo compressed air meters allow a highly accurate measurement of compressed air consumption, enabling energy-saving potential to be identified and costs lowered. The compressed air meters can also be used for the targeted implementation of environmental management – e.g. according to ISO 50.001 or ISO 14.001. A further area of application is leakage monitoring in a compressed air system. The compressed air meter can also be used to carry out a peak load analysis in order to determine whether compressed air of sufficient capacity is being generated. The newly developed “all-in-one sensor” records not only the compressed air consumption and the temperature, but also the pressure, eliminating the need for a separate pressure measurement. The compressed air meters from the testo 645X family use the calorimetric measurement principle, making any additional pressure and temperature measurement superfluous, and which is not subject to wear on moving parts.