Portable ultrasonic flowmeter quotation | The difference and comparison between plug-in electromagnetic flowmeter and portable ultrasonic flowmeter, which one is better

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What are the manufacturers of gas relay calibration stations? What are the advantages of all of them? Do you want to give an example? Thank you, heroes There are currently two main gas relay calibrators produced in China. One is Wuhan Hengxin Guoyi Technology Co., Ltd. (referred to as Guoyi) fully automatic gas relay calibrator, and the other is a portable gas relay calibrator produced by Kunming Zhongchao Power Equipment Co., Ltd. These two companies have already occupied 80% of the domestic market share. Now lets compare these two types of calibrators. Firstly, from the perspective of testing principles: the purpose of testing is the same: 1. flow rate tester 2. volume test 3. sealing test. The testing method is different. Flow rate testing: Guoyi Company uses ultrasonic flow meters at a price of 5500 yuan, while CSL uses flow meters at a price of 300 yuan. The characteristics of ultrasonic flowmeter are high price, good repeatability, and high accuracy that can reach two decimal places. The characteristics of flow meters are: cumbersome installation, low accuracy (± 0.5), and affordable price. Volume testing: Guoyi uses a liquid level measuring device. The pressure sensor used in the Chinese Super League measures the sealing performance through the pressure sensor, and then automatically calculates the volume parameters through the CPU. Its advantage is that only one pressure sensor can obtain the technical parameters of the volume seal. The structure is simple, the cost is low, and if the sealing performance is not accurate, the volume will inevitably be inaccurate. However, the volumetric performance of the National Instrument uses a separate liquid level measurement device, and the sealing performance uses a pressure sensor. Each parameter adopts a different sampling method, which avoids mutual influence during testing. Each value is tested independently, and the testing accuracy is guaranteed. 2、 The operation method emphasized by Guoyi Company is fully automatic testing, with one click operation and a 6-inch color LCD screen with touch function. The LCD screen has precision display function and time countdown during testing waiting time, and there is no need to train operators. It is a foolproof operation. The Chinese Super League emphasizes that it is portable, with a 128 * 64 blue screen, button operation, manual operation, and requires specialized training for operators. 3、 In terms of weight, Guoyi Company uses a control panel with four rollers underneath for easy movement, weighing 85KG. Zhongchao adopts a split design. Host weighs 15KG, accessories weigh 55KG, making it easier to move. 4、 The Chinese Super League has been on the market for over 10 years, while Guoyi Shiren Company has only been on the market for three years. 4、 In terms of price, Guoyi has three pricing methods: high, medium, and low-end. The Chinese Super League company only has one model, and the price difference between Guoyis low-end and the Chinese Super League companys is not significant. In summary, the selector compares the principles, difficulty of operation, testing accuracy, volume, weight, and price comprehensively. This data is sourced from Baidu Maps, and the final result is subject to the latest data from Baidu Maps.

2. May I ask which company to choose for importing portable ultrasonic flow meters?

Of course, I chose the ultrasonic flow meter produced by the British company Palmisan. It is imported with original equipment

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