Year1
- 工作温度：
- 0℃～40℃
- 大气压力：
- 86kPa～116kPa
- 贮存温度：
- -40℃～60℃
Introduction to specifications and parameters of coal mine oxygen meter
Explosion-proof form Mine intrinsically safe type
Explosion-proof Symbol
Operating environment conditions Operating temperature ℃ ~ ℃ Relative humidity
Atmospheric pressure ~ Storage temperature ℃ ~ ℃
Underground coal mines with the risk of methane or coal dust explosion
After tasting the sadness, swallow Only through bitterness can a fragile heart learn to be strong. As long as you have unchanging dreams, there will be hope ahead. Passing through the years, walking day and night, this road has been bumpy and bumpy, leaving deep and shallow footsteps. Looking back at dusk, this bumpy road is a picture of life. Spring goes and autumn comes, and it will never fade.
Introduction to the oxygen meter for coal mines
The oxygen meter for coal mines uses an electrochemical oxygen sensor, intelligent control by an embedded microcontroller, a four-digit display, and can be used for two purposes. It is compact and lightweight, easy to use and simple to operate. The instrument uses a membrane tact switch, which has good sealing performance and is accurate and reliable.
, structure
The oxygen meter mainly consists of a screw cap, digital tube, mask, operating buttons, alarm diode, alarm buzzer, circuit board, battery pack, battery cover, charging screw, electrochemical oxygen It consists of sensor, front shell, rear shell, nameplate and lifting ring.
, Working Principle
When the instrument is used to measure oxygen in the air, the electrochemical sensor directly reacts with the gas in the environment in a diffusion manner to produce a linearly changing voltage signal. After the signal is amplified by a linear amplifier, it is input into the /converter in the microcontroller and converted into a digital signal. After data processing by the microprocessor, the oxygen concentration is displayed by the digital tube. When the oxygen concentration is lower than the set alarm point, the instrument issues an audible and visual alarm. Signal. The instrument has battery low voltage alarm and automatic shutdown functions.
, Main purposes and scope of use
This instrument is widely used in coal mines to continuously monitor the concentration of oxygen in working environments where there are flammable, explosive and combustible gas mixtures, and to provide audible and visual alarms when the limit is exceeded.
It is a machine for detecting oxygen in the mine. The outer casing is made of cast iron. It is made by the most affordable manufacturer, Dehai Industrial and Mining.
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