1. Instrument characteristics: repeatability, linearity, category, total flow category, data signal frequency characteristics, response speed, working pressure damage, etc;

2. Fluid mechanics features: temperature, working pressure, relative density, viscosity, chemical corrosion, cavitation, crud, phase mixing, change, conductivity, sound speed, heat transfer coefficient, specific heat capacity, isentropic index value; br < 3, installation standard: pipeline layout orientation, liquidity orientation, distance between upstream and downstream connecting pipe sections of inspection parts, pipeline specification, maintenance room space

The advantages of the bar flowmeter are described briefly, such as switch power supply, grounding device, auxiliary machine equipment (filter device, degasser), installation, etc;

The selection of bar flowmeter is based on the principle of velocity difference method to measure the liquid flow in the circular steel tube. This series of instruments adopt the digital design scheme of digital transmission, digital reception, digital analysis, digital output and so on. The measurement, inspection and operation of instruments are reliable and more suitable for the requirements of industrial production on the spot. Converter mode: wall hanging type, plate antique type, integrated type; controller mode: plug-in type, pipe type, external clamp type.

● micro power consumption and digital design scheme. The whole equipment adopts micro power hardware configuration and software development to carry out digital transmission of ultrasonic data signals

Digital acceptance and digital analysis achieve the digital design scheme of * *, and the power consumption of the whole equipment is less than 0.3w. The power consumption of the whole equipment of rechargeable battery power supply system can only be 0.1MW.

In addition, the function of management method is designed. The instrument of this series of products can view the operation data information of the instrument at any time in the previous ten years at any time. Special metrological verification and management methods. Analysis and construction science adopted in software development to ensure the metrological verification function

● convenient maintenance features. By adopting speed control response technology, the series of instruments can automatically eliminate the zero deviation in the whole process of measurement, and the converter and controller can be removed and replaced at will in the whole process of maintenance, without harming the measurement degree.

● air bar type flowmeter. The data information of the instrument is input and displayed in the whole process of measurement. All Chinese characters are displayed, so that the operator can actually operate without using the manual

● plug in ultrasonic flowmeter: installation and maintenance are not stopped. Adopt the porcelain controller, use the special punching equipment of our company to carry out the installation without stopping work. Generally, it is mono measurement, so as to improve the measurement degree, and three channels can be selected..

● pipeline type ultrasonic flowmeter: it needs to cut off the pipeline for installation, but the maintenance will not be stopped after that. Can choose mono or tri channel controller.

● external clamp type ultrasonic flowmeter: it can be used for fixed and moving measurement. The special coupling agent (silica gel or high temperature long chain polymer vegetable oil with dry solid indoor temperature) shall be used for installation, and the pipeline shall not be damaged during installation.