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Zhengzhou Huazhi Technology Co., Ltd

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No. 238 Tongbai South Road, Zhengzhou City

WTC3 gas outburst parameter measuring instrument

NegotiableUpdate on 07/21

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Nature of the Manufacturer: Producers

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Overview

WTC3 gas outburst parameter measuring instrument

Product Details

WTC3 gas outburst parameter measuring instrumentproduct overview

WTC3 gas outburst parameter measuring instrumentThe measuring instrument can simultaneously and continuously detect the concentration and pressure of methane and carbon dioxide gases in coal seam boreholes. The measuring instrument uses an 8-bit microcontroller as the control unit and high-precision detection components, with high sensitivity and fast response speed. The screen adopts a wide temperature range 128 * 64 LCD, with clear and reliable display. By detecting the gas pressure inside the coal seam borehole, it is possible to determine whether there is a risk of gas outburst. In addition, it can also detect the concentrations of methane and carbon dioxide gases inside the borehole, which is only used as an auxiliary judgment and does not have the function of gas concentration exceeding the limit alarm.

WTC3 gas outburst parameter measuring instrumentComposition of models and their representative significance

W Gas

T stands out

C tester

Number of measurement parameters: 3 types

WTC3 gas outburst parameter measuring instrumentExplosion proof type and explosion-proof mark

Explosion proof type: mining essential and explosion-proof type

Explosion proof mark: ExibdI

WTC3 gas outburst parameter measuring instrumentDimensions and Quality

Dimensions: (178 × 74 × 33) mm

Weight: 0.75kg (including battery)

WTC3 gas outburst parameter measuring instrumentwork environment

In coal mines with explosive methane hazards:

a) Temperature: 0-40 ℃;

b) Relative humidity: ≤ 98% (25 ℃);

c) Atmospheric pressure: 80? kPa～116kPa；

d) Wind speed: ≤ 8m/s;

e) The storage temperature ranges from -40 ℃ to+60 ℃.

f) In a place without dripping water.

WTC3 gas outburst parameter measuring instrumentMain basic functions and technical indicators

a) The measuring instrument adopts natural diffusion sampling method.

b) The display value of the measuring instrument should have three or more valid readings, expressed as a percentage volume ratio, and able to indicate the positive or negative value of the displayed value. Resolution: methane 0.01% CH4, carbon dioxide 0.01% CO2, pressure 0.01 MPa.

c) The measuring instrument should have the functions of power on self-test, power on battery voltage display, and automatic undervoltage shutdown.

d) The charger that comes with the measuring instrument should have a charging indicator and anti overcharge function.

e) The measuring instrument is equipped with comprehensive evaluation indicators D and K for calculating gas outbursts.

f) The measurement parameters, measurement range, and division values of the measuring instrument should meet the following requirements:

(1) Carbon dioxide: 0.00? %CO2～5.00? %CO2 resolution, methane 0.01% CO2 resolution;

(2) Pressure: 0.00MPa~10.00MPa Division value: 0.01MPa;

(3) Methane: 0.00? %CH4~4.00% CH4 resolution methane 0.01% CH4;

WTC3 gas outburst parameter measuring instrumentBasic error

Measurement parametersmeasuring range Basic error

CH4 gas: （0.00～1.00）%CH4、±0.10％CH4

（1.00～3.00）%CH4、± 10% of the true value

(3.00-4.00)% CH4 ±0.30％CH4

CO2 gas: （0.00～0.50）%CO2、 ±0.1%CO2

(0.50-5.0)% CO2 ± (0.05+5% of the true value)

Pressure: (0.01~10.00) MPa、±2％FS

WTC3 gas outburst parameter measuring instrumentWorking principle

After signal amplification and A/D conversion, the output of the measuring instrument is sent to the CPU for processing. The pressure, carbon dioxide, and methane concentration values are displayed on the LCD screen. When the CPU is in a normal detection state, it simultaneously monitors battery voltage, displays time in a timely manner, alarms, and keyboard inputs, and takes corresponding actions. During charging, a three-stage charging management system is adopted, with the entire charging process monitored and indicated by the CPU, and automatically stopped when fully charged.