KTH-8 mining intrinsically safe key telephone products brand: Xuan Hai Electric Product Name: KTH-8 mine with intrinsically safe key telephone Ex-mark: Exd IIB T4 protection level: IP54Keywords: Mine key telephone, KTH- 8 mining intrinsically safe key telephone, KTH8 (Hotline: 18969798316 merchandise describes to KTH-8 mine with the security type key telephone Overview: KTH8 intrinsically safe explosion-proof digital telephone using modern electronic technology, fully integrated circuit is a high-performance, high-reliability communication terminal. supporting and the KTA17 safety coupler, and connected with the existing ground switch or scheduling switchboard communication system composed of coal mine production scheduling. KTH-8 poor working environment. mining intrinsically safe key telephone main features 1, KTH8 Intrinsically safe explosion-proof digital telephone, not only can be used in the coal mine, also can be widely used in other high-temperature, high humidity, heavy pollution, phone shell anti-static material, waterproof, dustproof, corrosion protection, protection grade IP56, suitable for extremely harsh environments, desktop Chief wall mount, using a newly developed electronic switching mechanism, phone no movable zero parts, the keyboard is fully sealed with a luminous touch of a button, the the ringing current call sound and light show, and there is an emergency call, hang up and redial button. 5, a call from the gain adjustment switch, according to the phone and scheduling Switchboard distance regulation sent by the then gain applies to coal mine long distance calls, bad wiring insulation the KTH-8 Mining button telephone intrinsically safe environmental conditions, ambient temperature: -5 ° C to +40 ℃; 2, the average relative humidity: ≤ 95% (25 ° C); Atmospheric pressure: 80kPa to 106kPa; noise: ≤ 75dB; 5 sexual mixture, but non-corrosive gases destroy insulation occasions. KTH-8 mining intrinsically safe telephone technical parameters 1, explosion-proof type: Mine intrinsically safe ExibI. dial-up: P / T compatible., structure: Guashi. 4, feed voltage: 44V ~ 60V. 5 intrinsically safe parameters: a) the maximum DC input voltage: ≤ 60V; b) The maximum DC input current: ≤ 34mA; c) maximum input ringing voltage: ≤ 60V, frequency (25 ± 3) Hz; d) Maximum input bell flow current: ≤ 38mA. 6, ringing loudness: ≥ 90dB (A) (then KTA17 safety couplers and 10 kilometers mine simulation users line distance phone meters testing). 7, the maximum communication distance: 10 km 8 Weight: 3.3kg. Share to: QQ space Sina microblogging Tencent microblogging All NetEase microblogging 0 ------ divider ------------------------ ---- Tip 1, all of the company's products are inspected after a formal inspection agency (third party), please do not question the quality of the product. 2, due to product modifications constantly updated, the Company can not ensure that customers receive the products and website pictures, appendix is ??exactly the same; Only to ensure genuine goods. Please confirm contact with my business before buying to buy. The products are delivered to third-party transportation does not guarantee not appear damaged during transport, such as after the arrival of dilapidated conditions, please do not hesitate to contact the company. 4, in strict accordance with the product manual install and use, to be installed by a professional electrician; year to the date of purchase, any product quality problems in the case of his natural by the company free maintenance. 5, any product technical issues please call the National Customer Service Hotline: 18969798316 (Wang)