Products Introduction】

   When testing the performance of a supercharger, air flow is one of the most important parameters of supercharger and compressor performance. Measurement of air flow rate many methods, such as orifice plate type, nozzle type, thermal type, etc., but these methods have the formation of the signal of the flow obstruction, and the flow obstruction and supercharger and other mutual loads, so the measurement of these methods is unscientific, and the measured data is not the mass flow rate, need to be technicians and then do the data processing, the only double-button line flowmeter has no throttling device, simple structure, measurement, and can maintain long-term Accuracy unchanged.

   In the experimental research, we have to use some instruments to test the object under study, but at the same time we use the instrumentation in the connection with the object under test, then the interaction occurs. The concept of input and output impedance is reflected in the electronic circuit between one part and the other, between one amplifier and the next. We use the instrument itself and the object to be measured interact with each other and produce measurement errors; in addition, people operate these instruments and the existence of human error generated by the use of scientific research data experimental value deviates from the real value or theoretical value, that is, the experimental data is not true. In the flow measurement, people want to get the signal to set up the orifice plate, microcone and so on throttle parts, no doubt the impact of the fluid input to the booster, and the size of these throttle parts themselves and increase the size of the comparator, the experimental conditions of scientific experiments and the conditions of the booster on-line are not the same, if we can not carry out empirical or theoretical calculations of the corrections, then the experimental data is not true and inaccurate, so the ideal measurement programme Is the supercharger before nothing can be measured, double-button wire sensor is such an ideal sensor.

   As shown in the figure above double button wire sensor, its calibre and supercharger inlet calibre is the same, the general length of the double button wire sensor is 2.5d, so there will be no installation of the measuring device to the whole system to bring error.

   Double new line inlet part of the profile line shape for the double new line, the outlet part of the cylindrical tube, this shape is more suitable for the shape of the air flow rate, and its flow field is uniform, gas flow loss is small, the measurement of the flow rate is very high.

【Specifications Parameters】

Measuring range: 0-5000 (m3/h)

Accuracy grade: 0.5%

Nominal diameter: DN200 (mm)

Universal medium: air

【Performance indicators】

1、Range：0~10kg/s Optional

2、Display unit: kg/s or kg/min

3、Accuracy: better than 1%

4、Output：4-20ma

5、Power supply: 220vac

6、 Calibre: standard and non-standard dn20~dn400

7、Connection: flange type, using pressure of 1mpa

8、Gas line length: <10m

9、Electrical signal output cable length <2km

10、The distance between sensor and display instrument is several metres to several hundred metres, cable connection.

11、Materials:1）Aluminium and stainless steel for small calibre;2）Double-sided glass fiber reinforced plastic for large calibre.

12、Protection standard: ip65

13、Differential pressure meter accuracy: ±0.1% f.s.