Product Description 
 The JH-1A oxygen breathing apparatus calibration device can be used to test the positive pressure oxygen respirator, negative pressure oxygen breathing apparatus, and the technical performance of the mixed gas respirator also can test the performance of the components of the various types of respirators group. 
 JH-1A the oxygen respirator check device technical parameters 
 Water column measuring range of the meter (-1100 ~ 1200) Pa 
 Water column of the partition of the scale 10 Pa 
 The measuring range of the flowmeter (0.35 ~ 3.5) L / min 
 The accuracy of the flowmeter 2.5 
 Pressure gauge measuring range (0 ~ 2.5) MPa 
 Pressure gauge accuracy of 2.5 
 Air pump pumping speed (8 to 12) L / min 
 Input voltage AC 220V 
 Dimensions 380 x 264 x 150 mm 
 Weight 11kg