KXB-2A alarm -KXB-2A mine audible voice alarm system (under the road, not ..

KXB-2A alarm -KXB-2A mine audible voice alarm system (under the road, pedestrians are not allowed) to bring man show KXB-2A Mine language sound and light alarm device is mainly used for coal mine gas containing spaces for transport roadway entrance, exit or Sanchakou light and sound alarm at the RBI, but also for other sound and light alarms. KXB-2A Mine language sound and light alarm device, in addition to function with a dot and dot indication of the lights, but also with voice prompts, to conform to the latest "Coal Mine Safety Regulations" requirements. 1.3. Device under the following conditions: Exd [ib] Ⅰ 2 · Use of environmental conditions: KXB-2A alarm -KXB-2A mine audible voice alarm system type explosion-proof type: Mine explosion-proof and intrinsically safe, explosion-proof mark should be able to work properly: a temperature: -5 ℃ ~ + 40 ℃; b humidity:.. ≤95%; c atmospheric pressure:. 80kPa ~ 106kPa; d Environmental Noise:. ≤75dB e have a mixture, but no damage to insulation. corrosive gas. 3. Dimensions and Weight Dimensions: 323 × 275 × 233 (L × W × H) Weight: 15.5㎏; 4 · KXB-2A alarm -KXB-2A mine audible voice alarm system structural characteristics and working principle 4.1 means one of two chambers separated intrinsically safe explosion chamber and the chamber, the chamber is equipped with explosion-proof power board, the safety chamber equipped with lights and speakers, an integrated circuit with a voltage comparator, a high degree of electrical optocoupler devices inspiration , modular design. High-speed processor, reliable performance, digital power amplifier, good sound quality without noise. Overall reasonable layout, small size and light weight. 4.2 The device has three states, one standby; second RBI state; the third is an alarm condition. Standby green light, red light while the speaker power siren when RBI. Alarm flashing red light, the speaker "is not allowed pedestrian traffic" and other language alarm. 5 · KXB-2A alarm -KXB-2A mine Technical features sound and light voice alarm 5.1 electro-acoustic performance 5.1.1 Audio mode: emergency alarm signals and warnings with voice, sound 5.1.2 Loudness: Environment Noise is generally not more than 75dB, the signal strength is not less than the sound level 85dB. 5.2 Electrical characteristics 5.2.1 Supply voltage: AC127V. 5.2.2 Current: When AC127V Working current ≤90mA. 5.3.1 Light signals a non-alarm status: Steady green light signal. b alarm status: red light flashing. c Audio Loudness: ambient noise is generally not more than 75dB, the signal intensity of the sound level of not less than 85dB d optical signal visibility: visible light signal intensity in the dark at 40m and voice to select the operating mode 4.5 4.5.1 RBI work: (DIP switch is in the OFF state) KXB-2A alarm -KXB-2A mine audible voice alarm system functions as follows: a standby status: Steady green light signal b RBI states: "play a little" alarm red light, speaker It emits a continuous electric siren. c alarm states: "playing two" points or "points" above (intervals of not more than 3 seconds) Alarm flashing red light, the speaker "is not allowed to pedestrian traffic" and other language alarm (continuous alarm sounds). Table 2 Select the alarm language. 4.5.2 contact work :( DIP switch is in the ON state) is triggered by the relay contacts. Language alarm, according to Table 2 Select the alarm language. a contact Open: Steady green light signal. b Contact closed: Red flashing (1: 1 Blinking) Speaker "is not allowed to pedestrian traffic" and other language alarm until the contact is opened. (No delay). Language selection function via DIP switch (8421 yards) to achieve see language Select Menu 2. 4.5.3 Alarm delay adjustment mode of operation: Yes Table 1 selection. Longest delay time: minutes 30 seconds 30 seconds +1 2 + 4 + 8 + 16 + 32 + = 64 minutes. Table 1 DIP-bit value N = 1 N = 2 N = 3 N = 4 N = 5 N = 6 min time S = 1 minute and 30 seconds S = 2 S = 4 S = 8 S = 16 S = 32 Table 2 Dial code switch (1 on, 0 off) Languages ??12,341,111 is traffic, pedestrians are not allowed! 1000 bucket into the well head, covers the door open! 1011 malfunctions, downtime! 0011 in front of the station, ready to get off the throttle 1101 has been opened, pay attention to safety, shut the throttle! 0101 locomotive by turning, pedestrian safety! 1001 in front of the shooting, be permitted to enter! 0001 to the front of the car, pay attention to safety! 0110 pedestrian access to the track, traffic safety! 1010 ready to drive, pay attention to safety! 0010 bucket into the well head, covers the door open! Other voice can be customized according to customer demand. 6. Installation 6.1 users may need to select the cable diameter 10mm mine rubber cables 3 × 1.5mm2. 6.2 Installation Precautions; power supply leads ABC terminals; all online alarm supply terminals of the same name must be in phase sequence. ⑴ RBI working method: A and B terminals to terminals AC127V power supply, A terminal and C terminal external explosion-proof button, the button is pressed once to "play a little", press the "play two o'clock." Work status, see 3.3.2. ⑵ Contact Working method: A and B terminals to terminals AC127V power supply, A terminal and C terminal external control contact, when the contact is closed, the alarm device will sound an alarm when the contact is open, an alarm system to stop the alarm . 7. Failure Analysis 7.1 silent, no light should check fuses and power circuits. 7.2 Flashing red alarm None Languages: lead-off speaker, speaker or speech block damage. 7.3 RBI silent state is not converted: Check the C line and optocoupler. 7.4 RBI sound, the state is not converted: Check connection wires. 7.5 Long-term RBI: Check if there is interference (A Phase C if there is a short circuit). 7.6 Long-term alarm: first check work, then check the optocoupler.