Research on different test methods based on heat meter flow sensor

Heat meters as an important measurement instrument and the basis for heatingbilling purpose, must ensure the accuracy and long-term reliability of measurement.After the heat meters from domestic brands are installed in the field, quality issues are frequently happening. Due to this reason some of the market is replaced by the heat meters from imported brands. Reflected to the test method, there is a big difference and one of the biggest differences between European and Chinese product standard on the durability requirement. This researchaims to establish a study based on a testing of 4,000 times temperature alternation, to make comparison to the 2,400 hours testing and to have a continuous perfection on durability requirement from standard perspective.It’s the first time in China to have an overall assessment towards the durability of heat meter in the condition of laboratory. This would provide theoretical support to the transformation and upgrading of the heat meter industry,and empower the development of heating billing.