Explosion_proof Mining Telephone KTH_11

Other mining-electrical equipm
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  • Use scope
    KTH22 mining telephone is used for coal mine that contains explosive gases(methane and coal dust) and other bad environment.
    Product features
    1.Dialing mode:impulse and double audio frequency
    2.Struction form:wall-hung and desktop
    3.The telephone case uses anti-static materials and flame-retardant plastics; safe and reliable.
    4.The telephone adopts electromagnetic transmitter instead of carbon transmitter; long life, stable performance, low noise, good linearity
    span lang=EN-US>4, Use hinder burn antistatic ABS engineering plastics, adopt acid-proof rubber to annotate a type, waterproof and dustproof.
    Technology parameters
  • Communication distance Sendingel ectric level Pulsing rate Ring sound level
    Low frequency group High frequency group
    5km -9±3dBm -7±3dBm 10±1times/s ≥85dB