The basic principle of accuracy of gas vortex flow sensor parallel standard tables at the level of detection devices generally 0.5 ~ 1.5 Guizhou steam flow model, is a 0.5 standard sensors can not be used when using only standard flow sensor calibration curve When a limited segment. Standard flowmeter calibration accuracy can be improved. Also subject to test the accuracy of the meter can be improved. Within this limited measurement range of the meter factor K relative error will be less than full scale error meter factor. The results show that if the turndown ratio of 2: 1 or 3: 1, in the fixed-point calibration to meet the requirements, so Guizhou steam flow meter, using the sensor standards, establish a gas flow device is feasible. Parallel is connected in parallel with several standard flowmeter limited measurement range instead of a single large range of standard flow meter, using high-precision low volume limit of the standard flowmeter calibration traceable cause problems simplified standard flowmeter. According to the way to establish a comparative measurement systems offer steam flow Guizhou to standard meter as the standard device, the gas in the same time interval between successive standard meter and was seized by the flow meter, flow value comparison between the two, thereby determining the measurement performance was seized flowmeter. At the same time interval technique, passing through all the standard gas mass flow sensor shall be equal to the quality of the school by the gas flowing through the table. According to the ideal gas equation PV = nRT known quality, as long as the measured temperature and pressure of the gas flow and working conditions of the time you can find to flow through the calibration of mass flow; according to the detected by the pressure and temperature calibration and pulse number can be calculated by the constant flow of calibration. Large-diameter vortex flowmeter steam flow measurement installation diagram (temperature and pressure double compensation) Medium temperature -40 ~ 80 ℃, -40 ~ 150 ℃, -40 ~ 300 ℃ power supply voltage pulse type: DC12V, DC24V standard current output, local Display: DC24V battery-powered (lithium battery): 3.6V accuracy of 0.5% (supply agreement), 1.0%, 1.5% Ambient temperature -30 ℃ ~ 65 ℃ Atmospheric pressure: 86KPa ~ 106KPa body vortex shedder Material 304 stainless steel ( supplied as standard), 316L, Hastelloy C, Hastelloy B, other materials supply agreement Protection class IP65, IP68 Guizhou steam flow meter price | Sisson · China (Online) | Guizhou steam flow from Guangzhou Sisson Automation Equipment Limited. Guangzhou Sisson Automation Equipment Co. (www.sisenauto.com) is Guangzhou, flow meters leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Guangzhou Sisson automation leadership with the staff warmly welcome all inquiries negotiations to create Guangzhou Sisson automation better future.