First, the vortex flow sensors features: 1. Scale range of vortex flowmeters sensor range in a small range. An accuracy of 0.5 or higher. Measuring range increases, the accuracy decreases. For gas metering. Good sensor is 1.5 accuracy. Turndown ratio up to 1: (20-25), the flow rate of (3-75) m / s. Usually only 1 ratio sensor range: (8-10). 2. Repeatability speed meter verification provisions, each flow sensor to detect point three times, find the maximum difference. Take the full range of all test points (generally 5-6 points) The maximum difference of repeatability. Generally 0.2% and 0.3%. 3. Pressure Loss vortex flow sensors pressure loss is very small, for example: when the saturated vapor pressure of 0.6MPa. Flow rate of 30m / s. Pressure loss 4kPa. Also with the smoothness of the inner wall of the relevant. 4. Simple stability of vortex flow sensor structure. No wear, sports, displacement components, good stability. After two test cycle (4 years), their accuracy, repeatability and meter factor can still be close to the factory index. 5. Maintenance mass confusion eddy current probe is to convert pressure into an electrical signal (frequency signal), the detection frequency signal amplifier board is an integral formation of the probe pulse, sent with the probe frequency equivalent to the indicator. Replace the detector amplifier board does not affect the measurement accuracy and other indicators. Even replacement of the probe in accordance with technical requirements under the premise, but also to ensure the technical specifications. No adjustment in the test cycle, any component calibration sensor. 6. Vibration vortex flow sensors is generated by the vibration frequency signal. In a strong vibration environment, vibration generated when the signal is greater than the fluid to generate a signal. Detection amplifier board is unable to eliminate vibration signal. The sensor can not be accurately measured, since the vibration of this sensor is still no flow frequency output. This is the biggest drawback vortex sensor. Sensor for the media vortex flow sensors suitable for single-phase medium in the heating system. At the same time you can only choose superheated steam, saturated steam and a medium water metering. In the heating system air metering meter retail, power plant sent superheated steam. With the steam flow in the pipeline, declining air temperature measurement gauge, gradually becomes saturated steam superheated steam, the steam in the pipe ends or very small case. The steam will become wet saturated steam, soft drinks mixed media, even water. The vortex flowmeter mass flow formula Qru = 3600fp / K = Qv × p shows that the steam mass flow sensor output frequency depending on plant (pipe flow) and vapor density p, the meter factor K with the sensor is constant, the frequency of meals steam the amount of changes in the size, density p in superheated steam and saturated steam compressed air metering meter wholesale, with the pressure and (or) temperature changes, can look-up table. Wet saturated steam, soft drinks mixed media, no table can be found, could not get the density. Nor is a single-phase fluid medium. The actual use of saturated steam can only be measured at, in this great errors. Removing heat network pipeline run, run, drip, leak circumstances, a great loss comes from this situation. Handled well pipe loss can reach 25% -30%. If the heating pipes with the end of a continuous steam of large users. This situation can be avoided. Compressed air metering meter price | compressed air metering count | Guangzhou Guangzhou Sisson Sisson Automation provides automation control equipment Limited. Guangzhou Sisson Automation Equipment Co. (www.sisenauto.com) strong, credible, in Guangzhou flow meter industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangzhou Sisson automation into the brilliant and you work for a better future!