WT-1 Gas Diffusion Velocity Tester Technical Manual
I. Product Overview
The WT-1 Gas Diffusion Velocity Tester is a new generation of coal mine safety detection equipment, designed for accurately measuring the initial gas emission rate (ΔP) of coal and the gas diffusion velocity (ΔD) within 60 seconds. This device utilizes imported high-precision sensors and achieves full-process monitoring through a computer-automated control system, effectively eliminating human operational errors.
II. Technical Parameters
Specification Item Parameter Value
ΔP Measurement Range 0-100 kPa (Full Scale)
ΔP Measurement Error ≤90 Pa
ΔD Measurement Range 0-50 mL/min (Full Scale)
ΔD Measurement Error ≤0.9 mL/min
Data Acquisition Accuracy 16-bit AD Conversion
Test Chamber Volume 7.6 mL Standard Test Cylinder
III. Core Functions
1. Automated Testing System:
o Integrated Solenoid Valve Control (Model VX24V-5G2)
o Pressure Sensor Accuracy <10 Pa
o Automatic Generation of Test Curves and Data Reports
2. Dual Detection Modes:
o Measurement of Initial Gas Emission Rate (ΔP) from Coal
o Continuous Monitoring of Diffusion Velocity (ΔD) for 60 Seconds
IV. Application Fields
This device is suitable for:
? Prediction of Coal and Gas Outburst Risks
? Assessment of Coal Mine Safety Levels
? Research on Coal Adsorption Characteristics
? Formulation of Mine Gas Control Plans

Zhengzhou Aidi produces and supplies coal drill cuttings desorption instruments, deep-hole sampling devices, pressure gauges, geological exploration desorption instruments, borehole flowmeters, mine gas extraction and outburst prevention equipment, true density testers for coal, gas content determinators, automatic initial gas emission rate testers, diffusion velocity testers, coal gas pipeline parameter analyzers, and borehole pulverized coal circulation devices.