XJH127 flameproof and intrinsically safe sound and light language alarm device, sound and light language warning device, corners alarm 
 1 Overview 
 XJH-127 mine explosion-proof and Intrinsically Safe sound and light language alarm device for use in underground coal mine gas and coal dust explosion hazard track flatfish, throttle up and down the depot and other places, when the motorcycle run to these needs alarm curves, switches at the beginning of language, such as: alarm: "The locomotive through the corners, pedestrian Please note". Throttle open, timely prompt "pedestrians, close the damper", "blasting the front, immediately withdraw the people allowed to enter. For the inclined shaft winch, language prompts are driving, are not allowed to pedestrians; used for the vertical shaft, the language prompt "signal is issued, no entry tank. This product is a mine explosion-proof and Intrinsically Safe equipment, including sensors, speakers, LED signal display circuit-based security circuit. Connected with the explosion-proof solenoid valve in the locomotive is to achieve automatic spray dust suppression. 
 (2) the work environment 
 2.1 Atmospheric pressure: 86 ~ 106kPa, the elevation is not greater than 2000M; 
 2.2 Ambient Humidity: not with 95% (+25 ° C); environmental temperature:? ℃ ~ to +40 ℃; 
 2.3 no significant vibration and shock of the occasion; 
 2.4 coal mine explosion mixture, but no destruction of the insulation corrosive gas and can prevent sewage or other liquid gets into the occasion; 
 2.5 The level of contamination: three; Installation category: III level. 
 3 Model and meaning 
 XJH -127 
 127 operating voltage 
 H combined 
 J Flameproof and Intrinsically Safe 
 X signal device 
 The main technical parameters and functions 
 4.1 The technical parameters 
 4.1.1 proof form: Mine flameproof and intrinsically safe type; 
 4.1.2 Explosion-proof mark: Exd [ib] i (150 ° C); 
 4.1.3 Power supply voltage: 127V; maximum working current: 0.2A; 
 4.1.4 Intrinsically safe output open-circuit voltage: 12V; maximum current: ≤ 1300mA; 
 4.1.5 audio sound level less than 85dB; light: red, green color, dark in visible within 20 meters; 
 4.1.6 Power adaptability: 75% ~ 110%; 
 4.1.7 Cable Type: MMYUR; maximum cable length: 2000m; 
 4.1.8 The distributed inductance: to ≤ 800μH/km; distributed capacitance ≤ 0.06μf/km; 
 4.1.9 Dimensions: 220 × 190 × 180mm Weight: 15kg. 
 4.2 The main features 
 Alarm device terminal "sensor" between when the trigger signal (high) and alarm devices, the light is green and safe by identifying the trigger signal (low); between terminal "sensor", locomotives trigger sensor green light off and display the red "traffic, are not allowed to pedestrians" light font, and constantly quoted language voice prompts Voice locomotive through the corners, pedestrian Please note that "; voice and luminous font warning delay time for 15 seconds ± 5 seconds delay time is up, the red alarm device off and restore the light-emitting solid green tips logo, the voice stopped. 
 4.3 When used to throttle or other alarm, as long as the sensor is given <0.5V low voltage signal, this device in a timely manner language Tip: pedestrians, close the throttle "," blasting the front, immediately withdraw the people, no entry ". Character dot matrix display. The user requirements, the subtitles can be compiled, at the same time in the intermittent time can play MP3 or other publicity warning greetings subtitles. 
 XJH127 flameproof and intrinsically safe sound and light language alarm device corners alarm