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You Are Here: About Company » Products Categories » lighting and accessories » KTH-33 Mining Explosion-proof Phone
KTH-33 Mining Explosion-proof Phone
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.
Main Features
1)the material of the telephone is Aluminum with beautiful appearance and the mechanical strength high.
2)adopt the new type keyboard.
3)adopt international general integral circuit, with merits of signal accurate , voice clear, work stable.
4)with functions of double audio frequency and impulse signal sending.
5)with features of explosion-proof, anti-moisture, volume small, weight light, solidity, durability, maintenance convenient.
Main Technical Data
1) Condition of usage:
Environment temperature: -5~40°C
Environment moisture:<=95%(+25°C)
Atmospheric pressure(86~106)kpa
Related device: KTA104coupler
2)Intrinsically safe parameters
|
Item |
KTH106-1Z |
|
Max inputting voltage(V) |
DC60 |
|
Max inputting current(mA) |
20 |
|
Max voltage of bell(V) |
AC56V |
|
Max current of bell(mA) |
10 |
3)index electric and audio
|
Length of mining artificial line
|
0KM |
5KM |
10KM |
|
Value of sending signal (SLR) |
>-2 |
<=15 |
<=18 |
|
Value of receiving signal (SLR) |
>=-8 |
<=2 |
<=2 |
|
Sheltering Value of side voice pressure(STMR) |
>=3 |
>=8 |
>=5 |
Sound grade:>=80dB
Impulse break-make ratio:1.6±0.2:1
Impulse velocity :10±1times/second
Frequency of double audio
|
High audio frequency Data& sign Low audio frequency |
1209 |
1336 |
1477 |
|
697 |
1 |
2 |
3 |
|
770 |
4 |
5 |
6 |
|
852 |
7 |
8 |
9 |
|
941 |
* |
0 |
# |
Frequency error<=1.5%
Low frequency electrical level:-9dBm±3dB
High frequency electrical level:-7dBm±3dB
In the frequency combination, high frequency electrical level should be low frequency electrical level higher about 2±1dB
4)dimension
5)weight:4.4KGS
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