Product Name: Explosion-proof LED big screen Overview Explosion levels: Ex dIIBT4; Operating temperature range: -40 ℃ - + 80 ℃; Working voltage: 220VAC ± 10% 50Hz; consumption: less than 55W; Electrical Interface: 2 G3 / 4 " (inside); Weight: about 40kg; Dimensions: 1120mm × 320mm × 170mm (height × width × thickness); a communication mode: RS-485 interface, the maximum transmission distance of 1.2km standard ModBusRTU agreement flameproof LED electronic display. is designed with oil quantitative filling control systems, electronic weighing system and other facilities, for explosive hazardous areas, site display device can be widely used in petroleum, chemical, pharmaceutical and other dangerous places with explosive gases. AW-LED type explosion-proof electronic display is designed with oil quantitative filling control systems, electronic weighing system and other facilities, on-site for explosive hazardous areas of the display device can be widely used in petroleum, chemical, pharmaceutical and other explosive gases dangerous places. Notice Important AW-LED-type flameproof electronic display with lifting structure, please note that when installing the display should avoid direct sunlight, try to avoid the rain, so as not to affect the application performance and service life. AW-LED type explosion-proof electronic display can be RS232 communication interface point between the PC and display of data transmission, RS485 communication bus may also be used for data transmission PC, each display connected to the communication bus are received from PC serial signals emitted by the device corresponds to the number of signals to be received by and ultra-high brightness LED graphic character dot matrix display visual distance is 15m above technical parameters are displayed in the number of characters: 12 English 12 letters or numbers, can display six characters; Explosion levels: Ex dIIBT4; Operating temperature range: -40 ℃ - + 80 ℃ ;. Operating voltage: 220VAC ± 10% 50Hz; consumption: less than 55W; Electrical Interface: 2 a G3 / 4 "(inside); Weight: about 40kg; Dimensions: 1120mm × 320mm × 170mm (height × width × thickness); communication:. RS-485 interface, the maximum transmission distance of 1.2 km standard ModBusRTU agreement. Hardware architecture AW-LED type flameproof electronic display by the switching power supply, control panel and LED dot matrix display 3-part Chinese character that comes with the control panel boards.