Precautions for operating semiconductor gas flow controllers?
Release time：
18 Feb,2023
Summary
With the continuous advancement of science and technology, all walks of life have also developed greatly. The development prospects of semiconductor gas flow controllers are also very good, so the demand is increasing, and there are more and more manufacturers on the market. As a manufacturer, it is also very necessary for us to tell you about the precautions for operating semiconductor gas flow controllers? Interested partners can come and have a look.
Before using this semiconductor gas flow controller, many problems have accompanied everyone. Therefore, to use it better, you need to understand some of its knowledge points. First of all, you should understand that a semiconductor gas flow controller is a product that can control a certain amount of gas, especially suitable for controlling the flow rate of multiple processes and controlling the ratio of different gases. Now this product has a wide range of applications and a wide range of working pressures. Our company's products can be used from vacuum to 10MPa; it can be used for various gaseous media (including some corrosive gases such as HCL); the flow rate range is wide. However, when using it, remember that if the working conditions of the semiconductor gas flow controller change (such as changes in substances, large changes in working temperature, etc.), the instrument needs to be zeroed. At the same time, the instrument hose needs to be horizontally assembled and calibrated with a level. Otherwise, it may increase the influence of changing operating conditions on zero drift. The sound card frame of the high-pressure flow meter cannot vibrate and swing, so it cannot be used on ships. Or perform relational calculations on a large amount of data with a pressure range of 0-100kg/cm2 and a flow rate of 0-7 standard liters/hour (gas), and use the relatively smaller rule of two to find the linear regression equation and its correlation. All rλ values are in the range of 0.999～0.9999.
Of course, semiconductor gas flow controllers currently have good linearity. However, the larger the total linear flow rate and the wider the range, the more serious the discrete system is, so it is generally also recommended to limit the range to 0-4 standard liters/hour (gas) to ensure good linearity. In order to accurately measure large flow rates while ensuring linearity, the separation principle can be used to expand the measurement range of the instrument. By using a bypass pipe, Venturi tube, and seal in combination, its measurement range can be expanded to tens, hundreds, thousands of standard liters per hour, and up to tens of thousands of standard cubic meters. The semiconductor gas flow controller also uses the thermal diffusion principle during operation. Thermal diffusion technology is a technology with good performance and high stability under strict conditions. Of course, there are also some other typical sensor components, including 2 thermocouples (platinum RTD), one is a speed sensor, and the other is when 2 RTDs are placed in the medium, the semiconductor gas flow controller is heated to a stable temperature higher than the ambient temperature. This is a formal manufacturer. Friends who want to order this product may choose here. I believe it will not disappoint you. The price here is reasonable, and the quality is guaranteed.
After the introduction of the above content, we have also understood the precautions for operating the semiconductor gas flow controller. Other knowledge points will be updated in the next issue. If you have time, remember to come and watch. There are customer service staff here 24 hours a day to receive you. Over the years, the company has been committed to the expansion and development of domestic and foreign markets, adopting both online e-commerce platforms and offline physical sales.
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