【Instrument Novice】Seeking help regarding issues with the online urea concentration meter
Thread Content
Gentlemen: Can the concentration of urea be measured using a differential pressure densitometer? I consulted several companies online; those in Xi’an and Shandong said they could measure concentration. When I asked about the MH5300 model from Shanghai, they said it couldn’t measure concentration and could only measure density Can a differential pressure densitometer actually measure concentration? :(
To date, I have not heard of any manufacturer that can directly measure urea concentration (perhaps I am just not aware of such ones); generally, the density is measured to indirectly determine the urea concentration
Oh, Shanghai Menghui said the same thing – it’s only possible to measure the density and then compare it to determine the concentration! ! But others from Xi’an and Shandong say that the concentration can be measured directly! !
You can ask them what principle they use to measure the concentration, and see if they have any experience in this area. As far as I know, no manufacturers are able to determine it directly; the brand we use in our unit is American-made, and they can only measure density
Hello, I am from a manufacturer of density meters. For issues related to the density of ammonia water and urea, the optical density meters developed and produced by my company can solve these problems. If it’s convenient for you, feel free to add me on QQ: 137014839 to discuss further!
Hello, the concentration and density are determined by the differential pressure method by calculating P = density * g * H. Density obtained through inverse calculation based on the actually measured pressure and level values. So the accuracy will be relatively poor. The products of Fuji Industrial in Japan feature high measurement accuracy thanks to the calibration curve using the ultrasonic sound speed method. There are many successful use cases in China.