The JC-5 formaldehyde detection instrument adopts the principle of high-sensitivity electrochemical sensors, combined with microcontroller technology and network communication technology to collect air samples from the detection site. Formaldehyde in the air is absorbed by phenol reagent solution, and reacts to generate pyrazine. Quinine is oxidized by high-speed iron ions in acidic solution to form blue-green compounds. According to the depth of the color, directly measure the color on site.
Due to the significant relationship between the detection values of indoor pollution and the temperature, humidity, air pressure, etc. of the detection environment, according to normal detection, the detected values often deviate from expectations. It can quickly detect six types of indoor pollutants, including formaldehyde, benzene, ammonia, toluene, xylene, and TVOC. It can display the date, detection time, and temperature and humidity data of the detection site. The left side is a Chinese display LCD screen, the right side is a sampling timing operation, and the middle is a thermal printer. It can quickly sample and analyze in real time on site, and print the detection date, time, temperature, humidity, execution standards, formaldehyde content, and whether it is qualified as a report. Formaldehyde detection adopts the national standard phenol reagent spectrophotometric method, using imported photoelectric sensors with high detection accuracy and low detection limit, which solves the disadvantages of zero drift of the electrochemical formaldehyde detector sensor and easy interference from other chemical gases during sampling.