HBZ (G) K-1 mine intrinsically safe key telephone products brand: Xuan Hai Electric Product Name: HBZ (G) K-1 mine with the security type key telephone Ex-mark: Exd IIB T4 Protection Level: IP54Keywords: explosion-proof telephone mine Kin phone, the HBZ (G) K-1 Intrinsically Safe key telephone hotline: 18969798316 Introduction HBZ (G) K-1 mine with intrinsically safe keys phone original model: of HBD (K -1) Scope: The product features an explosive gas mixture of dangerous places: 0, Zone 1 and Zone 2 explosive gas mixture: IIA, IIB, IIC ● temperature groups: T1-T6 indoor, outdoor the phone is intrinsically safe type, with ordinary telephone communications with downhole. Associated equipment BOH-type explosion-proof coupler supporting connection with the switch, composed of explosion-proof communication system. HBZ (G) K-1 mine Intrinsically Safe button telephone, uses and characteristics: HBZ (G) K-1 explosion-proof telephone, its proof grade i, it OBDK-1 type (DDK-1 type) coal mine mine telephone coupler automated telephone dispatch communication system. This machine is suitable in environments with explosive mixture using two HBZ (G) K-1 mine button telephone with intrinsically safe circuits and structural characteristics: 1, the use of electromagnetic microphone instead of the carbon microphone with a long life stable performance, low noise, linearity and good overcome a the carbon microphone longstanding quality problem. 2, the shell is made of FRP molding flame retardant materials. 3, the unit has a clear voice, the bell rang and high shock leak-proof, good looks, small size, light weight, safe and reliable, etc.. HBZ (G) K-1 mine intrinsically safe key telephone conditions of use: 1, temperature: -10 ° C - +40 ℃ Relative Humidity: 45% -95%, atmospheric pressure :86-106KPa 4 Environmental Noise: 75dB 5, switch feed voltage: 48 ± 4V 6, ringing lose put voltage: AC60-100V, 25Hz four HBZ (G) K-1 mine with intrinsically safe key telephone main performance: 1 electro-acoustic parameters: send parameters equivalent: ≤ +18 dB receiver parameters equivalent: ≤ +5 dB sidetone parameters equivalent: ≤ +8 dB the ringing sound level: ≥ +85 dB 3, the native frequency combination table, frequency offset does not exceed: ± 1.5%. The high-frequency group digital low-frequency group H1 H2 H3 H4 1209 1336 1477 1633 L1 697 1 2 3 L2 770 4 5 6 L3 852 7 8 9 L4 941 ☆ 0 # 4 Send level: low frequency group: -8 ± 1.8dB high frequency group: -6 ± 1.8dB level difference: 2 ± 0.8dB five HBZ (G) K-1 mine intrinsically safe key telephone use: 1, the outside line L1, L2, then intrinsically safe output of coupler as the calling user , can hear a dial tone after off-hook dialing a number each made the eyes and ears of the machine should be able to hear the tone. 2, when you want to talk with the dispatcher stations, pick up the phone to hear the dial tone, just press the # key can be. , Maintenance and overhaul of: 1, according to the conditions of use, to avoid the telephone by strong vibration, shock and water washout. 2, the telephone intrinsically safe line to ensure the normal work or shorted, broken fault state, can not produce enough to detonate or burning spark energy and temperature. 3, the circuit part silicone seal repair work is quite simple, when the work is bad, just replace the the entire seal amplifier can.