Gas automatic negative pressure sampler

Product Introduction
The gas automatic negative pressure sampler (hereinafter referred to as the sampler) collects gas samples from the underground air of coal mines, and then carries them to the surface for qualitative and quantitative analysis of oxygen, nitrogen, carbon dioxide, methane, etc. in the gas samples through instruments such as gas chromatography. It is a fundamental work to ensure the normal safety production of coal mines. For many years, the conventional method for collecting air samples underground in coal mines has been the manual double ball bladder sampling method, which has many disadvantages such as high labor intensity, poor sample authenticity, and insecurity. The gas automatic negative pressure sampler is a new product that replaces manual sampling methods. It has a series of advantages such as real sample collection, easy operation, labor-saving, time-saving, safety, compact size, and convenient portability, and is highly welcomed by coal mine workers in the defense front. This product is also suitable for collecting gas samples from flammable and explosive places in industries such as petrochemicals and coalfield geology research.

Technical Parameter
Export gas flow rate>22L/min; Error: ± 2L/min;
Working environment temperature: -10+40 ℃; Relative humidity: 95% RH (+25 hours); Atmospheric pressure: 80kPa-106kPa;
Battery pack open circuit voltage U0: 7.0V;
Short circuit current of battery pack I0:2.3A;
Working voltage: 6.0V;
Working current: 840.00mA;
Dimensions (length x width x height): 215mm x 130mm x 110mm;
Weight: 1.6Kg.