HD-P900 portable high-sensitivity detection of formaldehyde gas detection equipment formaldehyde detector formaldehyde

I. Introduction HD-P900 formaldehyde detection equipment is used to detect airborne formaldehyde gas content of the instrument, formaldehyde detector we use an alarm value, the alarm value customers can set up their own, but can also come to our side in accordance with national criteria to set the alarm value, when the content of the value of formaldehyde in the air reaches the alarm will send alarm. Second, detection of formaldehyde Notes itself is a highly volatile gas, so we have to shut the doors and windows during testing, to detect when the space to standard closing time for the detection of formaldehyde in accordance with state regulations about 8 hours When so measured concentrations to stabilize, but the HD-P900 formaldehyde detector models are high sensitivity detector, closing time is 1-2 hours you can reach directly into testing. Some people in the room the smell of formaldehyde taste, but the results can not be detected, the taste and smell of formaldehyde measured are two completely different concepts, smell the smell of formaldehyde gas concentration is greater than the value of explanation was not detected or not Alarm description is less than the resolution, but also a highly volatile formaldehyde gas, if coupled with good ventilation, smell the formaldehyde smell is certainly undetectable result, so the test you want to meet the above conditions can not be blind detection . Third, the testing process to be detected ① first closed space, the longer the better, because gas is a highly volatile formaldehyde gas; ② followed by formaldehyde detection equipment to open, and then prompts the instrument to operate preferably before the test instrument in a relatively ventilation or outdoor minutes, followed by detection; ③ After the test is completed the instrument on a relatively clean air ventilation, place a little while on the line to release the inside formaldehyde gas. Fourth, the technical parameters of the measured gas Gas Detected Detection principle Electrochemical formaldehyde detection principle catalytic combustion principle principle principle of infrared light ion principle PID sampling Sampling Method pump-priming, flow rates up to 1L / min, pump suction size ten stalls Adjustable Range Measure Range 0-10ppm, 20ppm, 50ppm, 100ppm (range optional) Resolution Resolution 0.01ppm, 0.1ppm, 1ppm depending on the specific sensor and range may be precision Precision 2% FS (more precisely optional) signal output Signal Output USB interface to high-speed data transmission, you can download and print data (optional) Response Time Response Time ≤10S Recovery Time Recovery Time ≤10S Repeatability Repeatability ≤ ± 1% linearity error Linearity error ≤ ± 1% Zero drift Zero shift ≤ ± 1 % (FS / years) display technology Display LCD dot matrix display technology Manipulation Language Operating language support in English gas unit Gas unit supports multiple gas unit switching display Operating temperature Temperature -40 ℃ ~ 70 ℃ Operating Humidity Humidity 0-95% RH Explosion grade Explosion-Proof ExiaⅡCT4 protection Degree of protection IP66 Alarm Alarm mode sound, light, vibration hours Operating time 100 hours (off pump) Dimensions Dimensions 205 * 75 * 32mm Weight 300g weight V. Features 1. Imported sensor, sensitivity high; 2. Alarm can be set according to their own customers; 3. The dot matrix liquid crystal display technology, clear and accurate; 4. To restore the factory settings function; 5. the pump suction size ten stalls adjustable; 6. With temperature and pressure compensation if you have any needs or questions can always contact customer service online or call 18853178077 or 0531-58675676 QQ: 1349192507 to let us know.