BSJ-1 explosion-proof phone 
 Mobile phone BSJ-1 explosion-proof explosion-proof phone 
 Working conditions: 
 Containing the dangerous sites with explosive air mixture: Ⅱ A, Ⅱ B, Ⅱ C 
 Sites with explosive air mixture: 1 & 2 
 Temperature class: T1-T3 
 Ambient air temperature: -20 ℃ ~ 40 ℃, relative humidity less than 95% 
 Explosion-proof grade: Exib Ⅱ CT3 
 Atmospheric pressure is 80Kpa ~ 106Kpa. 
 Phone main parameters: 
 Phone has a clock, call history, sound settings, phone book, messaging and other functions; 
 Mobile working voltage ≤ 4.2V, phone standby current ≤ 6uA. 
 Standby time 70-120 hours of talk time 2hr / hour 
 Transmission distance phone network may be based on 
 Mobile phone battery parameters: 750mAh 3.6V Li-ion battery overcharge protection voltage: 4.3V 
 Over-discharge protection voltage: 2.3V ≤ 50MΩ resistance 
 Please contact me: 15154721835 
 QQ: 1136189162 
 The company also operates: couplers, expanding broadcast telephone, industrial anti-noise telephone, cell phone explosion, HDB-2 Explosion-proof telephones, magnet-type telephones, speakers, explosion of connections around the pipe, threading box, low voltage cable connection box , mining intrinsically safe junction box circuits, high voltage cable boxes, cable boxes communication, DSB explosion-proof motor terminal box, terminal, explosion-proof latch, explosion-proof latch switch, high voltage cable connector, explosion-proof electric hoist button, separate type control button, the button switch, explosion proof fire alarm button, the button switches the safety circuits, relays, communication relays, electromagnetic relays, vacuum contactor, magnetic amplifiers, repeaters, sound and light combination of signal devices, RBI device, pull point devices, bells, bells batter, control transformers, high voltage fuses, detonators, pneumatic frame pillar drill, coal drill, bolt rig, rock drill, DTH drilling rigs and other mining machinery .