Formaldehyde (molecular formula: HCHO), also known as formaldehyde, is a simple aldehyde, usually a flammable, colorless and irritating gas. Soluble in water, alcohol and ether. 35~40% formaldehyde solution is called formalin. Formaldehyde is an important organic raw material, mainly used in the plastic industry (such as phenolic resin, urea-formaldehyde plastic - electric jade), synthetic fiber (such as synthetic vinylon - polyvinyl formal), leather industry, medicine, dyes, etc. But the smell is irritating to people and very harmful to human body. The harm of formaldehyde is related to factors such as the exposure time and the age, sex, and physical fitness of the exposed population. It has a greater impact on infants, the elderly, and women. The formaldehyde Detector is a new indoor formaldehyde concentration monitoring instrument. This product uses a new imported electrochemical sensor and a high-precision operational amplifier chip, which can directly convert the formaldehyde concentration signal in the air into an electrical signal in real time and continuously. Through the microcomputer data After processing, the LCD digital display reflects the measurement results. It breaks the bottleneck of traditional formaldehyde Detectors requiring professional operation and high detection costs, and can automatically provide 24-hour uninterrupted real-time monitoring of indoor formaldehyde concentration.
Biaozhi GM8801 formaldehyde Tester can quickly detect indoor formaldehyde gas, and can display the date, detection time, temperature and humidity data of the detection site. It has the characteristics of simple structure, small size, easy to carry and use, and intuitive picture. It can be widely used in on-site quantitative and qualitative detection of formaldehyde in the air of living rooms, indoors, residential areas, public places, living places and factories and mines. The portable indoor air formaldehyde on-site Detector is designed according to the principle of the national standard GB/T18204.26-2000 "Phenol Reagent Colorimetric Method for the Determination of Formaldehyde in the Air of Public Places".
4. Operating Instructions
1. Switch machine
Press the power button to turn on, long press the power button to turn off.
2. Reading of formaldehyde concentration value After starting up, the screen will display the countdown of 30 seconds to display the current environmental formaldehyde concentration value and temperature and humidity value. Before the end of the 30-second countdown, any button operation on the other buttons except the backlight button is invalid. The measured formaldehyde content value will be displayed on the LCD display with four expressions:
