The pressure gauge for oxygen cylinder cannot be adjusted. After the switch of the oxygen cylinder is turned on, the pressure gauge and the oxygen cylinder are connected. The pressure in the oxygen cylinder is directly applied to the pressure gauge, and the pressure gauge directly displays the measured pressure on the dial., So you can intuitively understand how much oxygen is left in the oxygen cylinder.

It is impossible to control the pressure gauge for oxygen cylinder by adjusting the oxygen cylinder switch, but if the oxygen cylinder switch is turned on too small, the pressure in the cylinder may not be fully applied to the pressure gauge, which will cause the pressure gauge to display abnormally. Obviously there is a pressure of 10Mp. However, only 1Mp is displayed on the table, which makes the user mistakenly believe that the oxygen has been used up. Therefore, the oxygen cylinder switch needs to be turned on at least 180 to 360 degrees.