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Introduction to Explosion proof Mobile Phone KT267-S1
KT267-S1 mining intrinsic safety mobile phone adopts intrinsic safety explosion-proof technology, has been tested and certified by explosion-proof organizations, and issued explosion-proof certificates and coal safety certificates; Suitable for communication in environments such as coal mines, underground mines, tunnels, etc.
Explosion proof mobile phone KT267-S1 parameters
Environmental temperature: 0 ℃ to+40 ℃; Relative humidity:<90% (+25 ℃); Atmospheric pressure: 80kPa to 106 kPa; Mechanical environment: occasions without vibration and impact; Can be used in explosive environments containing methane and coal dust, but in mixtures of corrosive gases that do not damage insulation; Do not use in environments with strong electromagnetic fields or electromagnetic shielding for mobile phones; Environmental noise: not exceeding 65dB. 4.1 Operating voltage and current: a) Operating voltage: DC3.7V; b) Working current: ≤ 600mA; c) Standby current: ≤ 50mA. 4.2 Battery parameters: a) Battery type: Lithium manganese oxide polymer; b) High open circuit voltage of battery: DC4.2Vc) Short circuit current of battery: 3.0A; 4.3 Wireless transmission parameters; a) Communication protocol: GSM/TD; b) Modulation method: QPSK; c) Working frequency: Reception: 2010MHz~2025MHz; Transmission: 1880MHz to 1900MHz; d) Emission field strength (dBm/m): -10 to -45; e) Receiving sensitivity (dBm/m): ≤ -80. 4.4 Ringing loudness (dB A): ≥ 70. 4.5 Main functions: a) Voice call and SMS functions; b) Status summary display, with Chinese and English interfaces; c) Signal strength detection and caller ID display; d) Support hands-free; e) Phone number record; f) Electricity display; g) Call records.