KTH108 Mine Underground Explosion-proof Digital Landline Waterproof Telephone
KTH108 mine intrinsically safe automatic telephone
1、 Scope of use KTH108 mine intrinsically safe automatic telephone is produced according to Q001-2010 standard. It is a dual-audio telephone, which can form a coal mine safety communication system network with the associated equipment KTA type mine telephone coupler and the dispatching console or switch whose output signal meets the requirements. It can be widely used in the environment where there is corrosive gas and steam mixed with methane and coal dust but not enough to damage metal and insulation. Its explosion-proof sign is "Exibi". The DC feed voltage of the telephone is 48V. The telephone can be used together with the common electricity and automatic telephone exchange through the telephone coupler to form the mine wired communication system.
2、 Model meaning (A, B, C...) improved feature code (automatic) design (modification) serial number telephone mining communication equipment
3、 Main features: 1. The telephone shell is made of DMC molded plastic, with beautiful appearance.
2. Adopt domestic new key number plate.
3. The internal circuit of the telephone adopts the international general integrated circuit, which has the advantages of accurate signal sending, clear communication and stable operation.
4. With dual audio signal sending function,
5. The whole machine is shockproof, moisture-proof, small in size, solid, durable and easy to maintain.
4、 Requirements for transportation and storage: 1. The packaged telephone can be used for water, land, air and other transportation modes under the condition of avoiding direct rain and snow.
2. The packaged telephone shall be able to be stored for one year in an environment with a temperature of - 10 ℃~+40 ℃, a relative humidity of not more than 90%, and no harmful gases to metal and insulation. See Table 2 for electro-acoustic indicators: the length of the mine simulation line is 0km, 5km, 10km, the transmitted loudness rating value (SLR) ≥ 2 ≤ 15 ≤ 18, the received loudness rating value (RLR) ≥ - 8 ≤ 2 ≤ 2, the side sound pressure masking rating value (STMR) ≥ 3 ≥ 8 ≥ 5
3. Ring sound level: ≥ 85dB.
4. Refer to Table 3 for the frequency of the dual tone dial. The frequency error is ≤ 1.5%. Low frequency group level: - 9dBm ± 3dB High frequency group level: - 7dBm ± 3dB In the frequency combination, the high frequency component level should be 2 ± 1dB higher than the low frequency component level
5. Operating weight: about 2kg
6. Communication distance: ≤ 10km, cable model and specification: MHYV1 * 2 * 7/0.37.
7. Overall dimension: 268mm×180mm×92mm
1、 Scope of use KTH108 mine intrinsically safe automatic telephone is produced according to Q001-2010 standard. It is a dual-audio telephone, which can form a coal mine safety communication system network with the associated equipment KTA type mine telephone coupler and the dispatching console or switch whose output signal meets the requirements. It can be widely used in the environment where there is corrosive gas and steam mixed with methane and coal dust but not enough to damage metal and insulation. Its explosion-proof sign is "Exibi". The DC feed voltage of the telephone is 48V. The telephone can be used together with the common electricity and automatic telephone exchange through the telephone coupler to form the mine wired communication system.
2、 Model meaning (A, B, C...) improved feature code (automatic) design (modification) serial number telephone mining communication equipment
3、 Main features: 1. The telephone shell is made of DMC molded plastic, with beautiful appearance.
2. Adopt domestic new key number plate.
3. The internal circuit of the telephone adopts the international general integrated circuit, which has the advantages of accurate signal sending, clear communication and stable operation.
4. With dual audio signal sending function,
5. The whole machine is shockproof, moisture-proof, small in size, solid, durable and easy to maintain.
4、 Requirements for transportation and storage: 1. The packaged telephone can be used for water, land, air and other transportation modes under the condition of avoiding direct rain and snow.
2. The packaged telephone shall be able to be stored for one year in an environment with a temperature of - 10 ℃~+40 ℃, a relative humidity of not more than 90%, and no harmful gases to metal and insulation. See Table 2 for electro-acoustic indicators: the length of the mine simulation line is 0km, 5km, 10km, the transmitted loudness rating value (SLR) ≥ 2 ≤ 15 ≤ 18, the received loudness rating value (RLR) ≥ - 8 ≤ 2 ≤ 2, the side sound pressure masking rating value (STMR) ≥ 3 ≥ 8 ≥ 5
3. Ring sound level: ≥ 85dB.
4. Refer to Table 3 for the frequency of the dual tone dial. The frequency error is ≤ 1.5%. Low frequency group level: - 9dBm ± 3dB High frequency group level: - 7dBm ± 3dB In the frequency combination, the high frequency component level should be 2 ± 1dB higher than the low frequency component level
5. Operating weight: about 2kg
6. Communication distance: ≤ 10km, cable model and specification: MHYV1 * 2 * 7/0.37.
7. Overall dimension: 268mm×180mm×92mm
