GB/T 32224-2015: Translated English of Chinese Standard. (GBT 32224-2015, GB/T32224-2015, GBT32224-2015): Heat meters
https://www.chinesestandard.net, 2019 M05 18 - 62 pages
This standard specifies the terms and definitions, technical characteristics, requirements, test methods, inspection rules, marking, packaging, transportation, storage of heat meters. This standard applies to the production and inspection of heat meters which use water as medium.
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Appendix B Normative Structure and installation of platinumresistance
Normative Optical interface and data communication
Appendix G Normative Test and calculation of accuracy of flow sensor
Admissible pressure loss calculated according carried out according category-C communication protocol cooling meter Data communication degree of protection density and enthalpy direction of water display resolution displayed value durability test Electrical insulation Electromagnetic compatibility Electrostatic Discharge Environment category-C error limit exceed the error exit the test exit-factory inspection flow sensor following requirements heat exchange system hole for lead immunity test GB/T insertion sleeve JB/T jth measuring point jth point lead seal master station maximum admissible measurement accuracy measuring element platinum-resistance minimum flowrate nominal diameter non-standard structural dimensions optical interface permanent flowrate pipeline PL type temperature protection of shell Protective tube provisions of Appendix relative error shown in Figure slave station Spare hole standard device Table Tempera Density temperature measuring element temperature sensor pair Test and calculation Test methods Testing and measurement Type inspection type temperature sensor Undervoltage prompt unit of display voltage wakeup water flow welded joint