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HBZ Explosion-proof Telephone
Wenzhou Boshi Electric Technology Co., Ltd.
www.chinabozz.com
0086-0577-57106111,57104321,62873166
Use scope
It 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
Technology parameters
|
Communication distance(km) |
Frequency(Hz) |
Operating voltage(V) |
Bell current voltage(25Hz,V) |
Ring sound level(dB) |
|
15 |
300-3400 |
52 |
56 |
85 |
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