Are hydrogen analyzers such as the KM1550 pure imported brands from the German company HLPLANAR?

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Are hydrogen analyzers such as the KM1550 pure imported brands from the German company HLPLANAR? Are German brands such as HLP\HNP, American brand STC, and German brand BOSH all imported brands of gas analyzers? The following is the response from an engineer at North China Electric Power Design Institute: There is indeed a company named HLPLANAR in Germany, and this company has been acquired by MEAS Corporation, the world’s largest publicly traded sensor manufacturer based in the United States. However, the German HLPLANAR company does not produce hydrogen analyzers at all; its main products are rotary sensors, vibration sensors, etc. The so-called HLPLANAR hydrogen analyzers, oxygen analyzers for hydrogen, and hydrogen analyzers for oxygen used in China actually utilize the TCS208F thermal conductivity sensors produced by the German company Gerhard R. Wagner. These analyzers are made using operational amplifier circuit boards developed by some domestic companies, and strictly speaking, they are actually domestic-made analyzers ； The thermal conductivity chip used is from Germany. In recent years, many companies in China (such as those in Zhengzhou, Changzhou in Jiangsu, and some companies in Shanghai) have been using this so-called Hailip analyzer to pass it off as a purely imported brand. This is a huge loss for power plant owners, as they pay the price of imported analyzers only to end up with domestic ones, and spare parts can only be purchased from a few companies at relatively high prices. We now hope that electricity users will summarize which are the truly pure-import analytical instruments in the power industry The following is what power design engineers know: For pure-import analyzers used to monitor the purity of hydrogen in hydrogen generator sets, there are brands such as GE’s Panametrics from the United States (model XMTC6211) and Honeywell from the United States (model 7866). As for pure-import online and portable analyzers used to monitor oxygen and hydrogen levels in hydrogen at hydrogen production stations, there are models like Hach K1550 from the United Kingdom (note that counterfeit versions are now available in China), GE Panametrics’ OXY.IQ and XMTC6221, ADV’s GPR2500 from the United States, TELEDYNE’s B series, Siemens from Germany, ABB from the United States, and Smiths from the United Kingdom. For pure-import online analyzers used to monitor the dew point of hydrogen at hydrogen production stations, there are options from GE’s Panametrics, Vaisala from Finland, Michell from the United Kingdom, DeepTech from the United States, and SHAW from the United Kingdom. For hydrogen detectors, there are the Honeywell Impulse XP from the United States, as well as those made by Shin Cosmos in Japan (these devices use foreign components and are assembled domestically). Please share information on other brands of fully imported analyzers as well! ! ! Make sure it is purely imported original. . Stop deceiving the power industry owners any longer.