Product Description 

 The methane test calibration units is developed based on the line labeled MT28-2005 and the requirements of the technical conditions of light interference methane determination. The instrument is a national initiative, has twelve calibration function. The test is accurate, stable performance and easy maintenance, widely used in the coal mine safety system instrument repair school work. It is one of the necessary equipment in the security instrument repair centers, research institutions and teaching laboratories. 

 Technical parameters 


 Water column pressure calibration: (710MM) 7kpa 
 Standard gas sample with: 0.5-95% CH4 
 Impact test 
 Stability test 
 High and low temperature test -10-40 ℃ 
 Tightness test (710MM water column) 7kpa 
 Diffusion test 
 The plate-tube negative pressure test 
 Drying tube positive pressure test