Zb127 mining flameproof and intrinsically safe speakers wholesale of high quality and low price speakers

Zb-127 mine flameproof and intrinsically safe speaker product introduction zmjt056
Zb127 mine flameproof and intrinsically safe speaker adopts mine flameproof and intrinsically safe design, which is suitable for the environment with gas but no corrosive gas
For example, it is used for safety signal indication and warning in coal mines or other mines, underground, inclined roadway, drift and other occasions
Zmjt056 uses AT89C2051 as the main control chip for program control, which can produce the language prompt and beep alarm required on site

Working conditions of zb-127 mine flameproof and intrinsically safe speaker
Zb-127 mining flameproof and intrinsically safe speakers are used under the following environmental conditions:
A
Temperature: - 5 ℃ & mdash& mdash; + 40℃；
B
Average relative humidity: no more than 95% (+ 25 ℃)
C
Atmospheric pressure: 80kPa;
D
Occasions with explosive mixture but without damaging insulating gas;
The worst storage and transportation conditions that zb-127 mining flameproof and intrinsically safe speaker can withstand are:
A
High temperature: + 60 ℃;
B
Low temperature: - 40 ℃;
C
Average relative humidity: 95% (+ 25 ℃)
D
Vibration acceleration: 50M / S2;
E
Impact: peak acceleration 500 / S2

Parameters of zb-127 mine flameproof and intrinsically safe speaker
Model: zb127-yx (KB)
Function introduction: half duplex intercom, playing background music, dot, alarm, etc;
External power supply: ac127v;
Rated working current: & le; 400mA。
Explosion proof type: intrinsically safe exd[ib]i