GC-4295 Portable Mine Gas Chromatograph for Coal Mines

The GC-4295 is a portable gas chromatograph that requires only one carrier gas, with no need for fuel gas or auxiliary gas, and features a built-in carrier gas cylinder. It is suitable for use in inert gas fire prevention and extinguishing operations to assess the development status of sealed fire zones and the degree of fire extinction, enabling tracking and understanding of inerting conditions in the work area, providing support for firefighting measures, and offering scientific data for reopening fire zones.

1. The chromatograph features an electric automatic ten-port valve injection system, ensuring excellent retention time accuracy and more precise data.  

2. Built-in automatic negative pressure sampling device.

3. Large-screen touch LCD industrial control computer with one-key startup function.

4. The data workstation directly reads peak area data and concentration values for each component.

5. Three-channel design: Channel A detects O2, N2, CH4, and CO2; Channel B detects C2H4, C2H6, C2H2, C3H8, and H2S; Channel C detects H2 and CO.

6. Minimum detection limits: O2, N2, CH4, CO2 ≤0.1%; H2, CO minimum detection limit ≤5ppm; C2H4, C2H6, C2H2, C3H8, H2S minimum detection limit ≤0.05ppm; Quantitative repeatability: ≤3%.