TMA-210-P is a portable micro-water analyzer introduced by the CMC. It uses the principle of electrolyzed water molecules to generate hydrogen and oxygen through a phosphorus pentoxide sensor. This sensor consists of a glass cylinder and two parallel electrodes. The specific application is to select the electrode material (usually made of platinum or rhodium metal wire), and a thin layer of phosphoric acid H3PO4 film is applied between the two electrodes. The electrolytic current that appears between the two electrodes makes the acid. The water is decomposed into H2 and O2. The final product of this process is phosphorus pentoxide, and P2O5 is a highly hygroscopic substance, so it absorbs water from the sample gas. Through a continuous electrolysis process, the water content of the sample gas and the electrolysis Establish a balance between the moisture content, the electrolysis current is proportional to the moisture content in the sample gas, the signal is processed by the instrument’s internal signal amplifier, and then displayed and read out. This principle is suitable for the analysis of Xe, Ar, Kr, He, D2, F2, N2, H2, O2, O3, HBr, PH3, SF6, Freon, C2H2, CO2, CH4, Natural gas, especially suitable for high-purity acid gases such as Cl2, Measurement of trace moisture in gases such as HCl, SO2, H2S (except for a few gases that will react with phosphoric acid).
The problem of TMA-210-P application analysis is that the sample gas must be processed by the sampling system before entering the sensor during the measurement. Because the process gas is under abnormal working conditions. Impurities or moisture and lye may enter the flowmeter or sensor. We do it every time. First deflate briefly through the three-way valve. Prevent entry of impurities. If it has entered, it needs to be purged with high purity gas or cleaned by liquid.