JB/T 9249-1999 Translated English of Chinese Standard. (JBT 9249-1999, JB/T9249-1999, JBT9249-1999): Vortex shedding flow transducer [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2016. 1. 18. - 20ÆäÀÌÁö This Standard specifies the definition, product category, technical requirements, test methods and inspection rules of vortex shedding flow transducer. |
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Product category | 6 |
Technical requirements | 9 |
Test methods | 12 |
Inspection rules | 18 |
Mark packaging and storage | 19 |
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AC power supply according to equation accuracy grade apparatus for explosive Atmospheric pressure average meter factor basic error limit breakdown or arcing calibrated average meter Compressive strength test deviation BETWEEN meter Electrical apparatus error limit range Explosion-proof performance explosive atmosphere external magnetic field Flanged flow point flow range flow transducer Mark flowmeter fluid following numeral systems frequency is 50Hz Insulation resistance insulation strength test JB/T linearity and repeatability Mark number maximum value Measured medium measurements points method in 6.2 Nominal diameter nominal pressure original calibrated average output terminal packaging permissible basic error power supply terminal power supply transducer Power supply voltage pressure loss product certificate Qmax Relative humidity repeatability tests according requirements of 5.2 resistance coefficient shedding flow transducer Standard terminal and housing Test methods times/l transducer shall comply transducer¡¯s all measurements transducer¡¯s basic error transducer¡¯s linearity transducer¡¯s power supply type inspection upper flow limit vortex shedding flow