DIN EN 17526:2020 Edition

This European Standard specifies requirements and tests for the construction, performance and safety of class 1,5 Capillary Thermal-Mass Flow sensor gas meters (hereinafter referred to as meter(s)). This applies to meters having co-axial single pipe, or two pipe connections, that are used to measure volumes of fuel gases, which are within the limits of the test gases of the 2nd and/or 3rd family according to EN 437. These meters have a maximum working pressures not exceeding 0,5 bar and a maximum flowrate not exceeding 160 m3.h-1 over a minimum ambient temperature range of -10 °C to +40 °C and a gas temperature range as specified by the manufacturer with a minimum range of 40 K.