In order to ensure the normal operation of the instrument and achieve accurate measurement, it is very important to select the instrument correctly. The following aspects must be considered in the selection of diesel flowmeter.

(1) Selection of detection methods: While various detection methods have their inherent advantages, they also have their own shortcomings. Therefore, the advantages should be taken into account when selecting.

The thermal type has the advantages of high sensitivity, large range ratio, and the disadvantages of poor corrosion resistance and dirt resistance, so it is suitable for measuring general gases; Especially when the flow in the pipe is small and the side flow in other ways is difficult, the thermal type may be competent.

Piezoelectric type is relatively dirt resistant, has strong corrosion resistance, and has high detection sensitivity. Its disadvantage is that its resistance to system shock and vibration is poor, and it is suitable for most occasions.

The disadvantage of magnetic sensing type is that it has low sensitivity and small measuring range, but its outstanding advantages are high temperature resistance and corrosion resistance, so it is an ideal instrument when there is corrosive medium in the side measurement.

(2) Selection of flow measurement range: various forms and types of flow instruments have their own measurement range, and the instrument must be within its own measurement range to work normally. Therefore, when selecting the flow range, it must be ensured that the allowable measuring range of the instrument must cover the actual flow range before use, and it shall not be forced.

(3) In order to make the diesel flowmeter work under good characteristics, the flowmeter with small nominal diameter shall be selected as far as possible.