The PRI-5251CT automatic low temperature cold trap online water removal system is tailored for the high- precision observation of greenhouse gases (patent application pending), with a two-stage water removal function, which can achieve efficient water removal and fast deicing of the gas to be measured through alternate duplex mode, and the output water vapor concentration is less than 0.01%. The PRI-5251CT contains two first-stage low- temperature water removal units and two ultra-low temperature water removal units, which improve the efficiency of cold trap water removal and reduce the frequency of cold trap switching by twice dewatering; The optimized design of the cold trap tube volume is small, the gas consumption is low and the gas turnover rate is high, and the standard gas and the sample gas are undercooled trap, which can ensure the unified system error of calibration and sample measurement; It contains double pump and double channel active gas supply unit, which can purge and purify the next channel to be tested in advance and produce dry gas to realize seamless switching between different cold traps; Including pressure and flow balance design, can eliminate the measurement error caused by the pressure fluctuation caused by the switching of the solenoid valve between different channels.
       PRI-5251CT automatic cold trap online water removal system is a unique water removal solution for high precision greenhouse gas measurement, compatible with various brands of analyzers.
       PRI-ECO has been deeply engaged in the field of greenhouse gas scientific research and monitoring for 16 years, and has undertaken and participated in major instrument research and development projects awarded by the Ministry of Science and Technology (twice), Chinese Academy of Sciences and Beijing Municipal Science and Technology Commission. PRI-ECO has excellent instrument research and development, design and production capabilities, can provide a variety of high, medium and low precision greenhouse gas analyzers and spectral isotope analyzers. In the practice of providing customers with technical support and system solutions has accumulated rich experience, for the effectiveness assessment of domestic "double carbon" action, PRI-ECO has the strength to provide "scientific, accurate, complete and systematic" carbon measurement solutions.

Technical principle
       Single compressor automatic cascade refrigeration technology