... 2,Convenient installation and maintenance and Intelligent Vortex Flow Meter Built in Piezocrystal Simple Structure Long Service Life Wide ... Application KVFN Intelligent Vortex Flow Meter, produced by Chongqing Endurance company have gained CE ... JIS 10K, 20K, 40K; ANSI Class150, Class300, Class600 Signal Output: Pulse Output, Two Wire 4~20mADC, RS-485, Hart, Modbus Power ...