Several Methods of Verifying Insertion Flow Meters

Abstract: The information on several methods of calibrating the plug-in flow meter is provided by the excellent flow meter and flow meter production and quotation manufacturers. There are several methods for verifying the insertion flowmeter: 1. The flowmeter method The so-called flowmeter method is a method of verifying only the measuring head of the point flow type insertion flow sensor, and using the measuring head as a flowmeter. For the frequency output type measuring head (such as insertion. More flowmeter manufacturers select models and price quotations, you are welcome to inquire. The following are the details of several methods of calibrating insertion flowmeters. Several methods of calibrating insertion flowmeters Method: 1. Flowmeter method The so-called flowmeter method is a method of checking only the measuring head of the flow type insertion flow sensor, and using the measuring head as a flowmeter to check. For the frequency output measuring head (such as inserting Type turbine and insertion type vortex flowmeter), first measure the instrument coefficient of the measuring head on the calibration device, and then determine the velocity distribution coefficient according to the fluid and pipeline conditions at the application site. The flow meter method has many advantages, it should be the point The main method of flow type plug-in flowmeter calibration should be widely used. 2. Flowmeter method calibration equipment and calibration method The calibration method is as follows: the flowmeter measuring head is firmly fixed on the measuring car, and the measuring car is on the measuring car. The moving speed of the moving measuring vehicle on the tracks on both sides of the water tank represents the standard flow rate of the water flow, and the relationship between the flow rate and the instrument signal can be obtained by changing various vehicle speeds, so as to determine the flow rate instrument coefficient of the measuring head. If the flowmeter manufacturer does not have a straight open groove And the low-speed wind tunnel, you can also use the circular tube flow standard device for the calibration of the measuring head, but the velocity distribution coefficient and blocking coefficient of the test section of the circular tube flow standard device must be determined. Type flow sensor, including measuring head, insertion rod, insertion mechanism, converter and measuring pipe for calibration, that is, the insertion type flowmeter is regarded as a full-tube flowmeter and the meter coefficient is obtained by calibrating on the flow standard device. The calibration equipment and method are exactly the same as the calibration of the full-tube flowmeter. It will not be introduced here. 4. The biggest advantage of the flowmeter method The calibration equipment can be small and medium-sized, and there is no need to build a large-scale flow standard device. Therefore, both the construction cost of the calibration device and the daily calibration cost of the instrument are relatively low. The insertion flowmeter calibrated by the tachometer method is a variety of Among the large-diameter flowmeters, it is the flowmeter with the lowest production cost and the lowest operating cost. Using the flowmeter method to verify the plug-in flowmeter will make the production cost of the meter very high, and some large-diameter meters cannot even be verified at present. As a brand high-quality flowmeter manufacturer, Jinyuan Instruments main products: sewage flowmeter, electromagnetic flowmeter, steam flowmeter, gasoline flowmeter, turbine flowmeter, ultrasonic flowmeter, balance flowmeter, steam flowmeter, etc., professional customization , Integrity bargaining! Welcome new and old customers to consult and purchase, we will serve you with sincerity! Our factory is located in the beautiful town of Lotus Township named by Premier Zhou Enlai, surrounded by three lakes, Sunrise Doujin: Jinhu, if you need Come to our factory to inspect and observe, you are also welcome to appreciate the scenery of the three rivers, the ten-mile river, the morning drum and the bell in our small town, and enjoy the nostalgic fishing interest, fresh lake delicacies, and fragrance of forest baths in our small town! The above is the whole content of this article, you are welcome to inquire Our manufacturer's flowmeter selection, quotation, etc. 'Several Methods for Verifying Insertion Flowmeters'

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