GB3836.1-2010 Electrical Equipment for Explosive gas Environments -- Part 1: General Requirements
GB3836.2-2010 Electrical Equipment for Explosive Gas Environment -- Part 2: Flameproof type "D"
GB12476.1-2013《Electrical equipment for The Environment with Combustible dust - Part 1 / Part 5: General requirements, Enclosure protection type "tD"》
National anti-explosive electric products quality supervision and inspection center, 【 CNEX 】explosion-proof marks for Exd Ⅱ CT6Gb/ExtD A21 IP68 T80 ℃.
Applicable to factories with A and B Ⅱ Ⅱ, Ⅱ c-class T1 ~ T6 group of combustible gases and vapors in mixture with air to form explosive place of 0, 1 zone and 2 zone, and the formation of combustible dust in mixture with air of 20, 21, 22 area explosive dangerous location.Such as petroleum, chemical industry, wharf, oil depot, ship, drilling platform, gas station, mine, port, aerospace, military industry, medicine, steel, fireworks production, machinery, food processing and storage sites.
● Compact size, light weight, flexible installation
● 5 megapixels 1/2.5"CMOS sensor, 1.3 megapixels /2 megapixels effective, coupled with a faster digital processor, can quickly compress larger and clearer images;
● Match the advanced operating system video compression algorithm, make the image transmission more smooth and display more clear and exquisite;
● Support remote image access through a browser (Internet Explore), support dynamic IP address, to facilitate the network transmission of images;
● Photosensitive performance is greatly improved, and the minimum illumination is as low as color 0.001Lux@F1.2;
● The latest fourth-generation wide dynamic technology, the dynamic range is greater than 75dB, the effect improvement is very obvious;
●3D digital noise reduction technology, increase the noise reduction processing of the original signal, the image at night is clean and bright;
● Automatic day and night conversion, clear and detailed color lifelike high-quality picture;
● Aviation grade high-strength polycarbonate explosion-proof ball cover, light pass rate is higher than 93%;
● Aluminum alloy surface adopts special anodic process to form a high strength protective film, which is firm and wear-resisting, and will never fade.