Overview of explosion-proof digital clock digital clock digital clock-proof, explosion-proof quartz, explosion-proof wall clock (referred to as a digital calendar) intrinsically safe explosion-proof digital information calendar made of advanced integrated circuits, powered by BBK-T-proof transmitter is connected to 220V AC power. The explosion-proof wall-mounted digital clock is suitable for containing flammable gas mixture 1 and Zone 2 areas, ⅡA, ⅡB, ⅡC category explosive atmospheres, such as petroleum, chemical, oil depots, steel, coking, mining and other enterprises. Explosion-proof digital clock technical parameters 1. Ambient temperature: -20 ℃ ~ 60 ℃ ;. Relative humidity: 45% to 80%; Atmospheric pressure: 80 ~ 100kpa 2. Ex-mark: ExibⅡCT6; Power supply voltage: AC220V ± 20%, 50 ~ 60Hz 3. Power: ≤6W; timing accuracy ± 1S / day; calendar data storage: 50 years 4. Automatic identification Gregorian calendar, the lunar calendar, leap year, the size of the month, day, time and temperature display 5. accurate temperature: -9 ℃ ~ + 50 ℃, temperature measurement error ≤1.5 ℃ 6.LED Drive mode: Dynamic; Time Format: 12-hour countdown Lunar Calendar 7.5 group set alarm within 24 hours after the self-setting automatic memory, set alarm 1-4 alarm for the day, every day alarm; 5 for five days set alarm system alarm, alarm, Monday through Friday, and on Saturdays, Sundays, no alarm. 8. The whole point of alarm time: 7: 00-21: 00; calendar year / month LED: 1 inch red; calendar day LED: 1 inch red 9. Time LED: 1.8 inch red; Lunar LED: 0.5 inch red 10. Auto Brightness adjustment: Brighter time 7:00 ~ 22:00, darker hours: 22:00 - 7:00 proof digital clock, wall clock explosion, explosion calendar