With the regulator adjusting knob turned fully counterclockwise, place both hands on the cylinder valve and open it slowly, allowing the pressure to rise gradually in the regulator.
调整器的调节钮逆时针旋死后，两只手放在钢瓶阀门上，慢慢地开启，使调整器内的压力逐渐增加。
2
Turn the adjusting knob clockwise and establish the required use pressure by referring to the low-pressure gauge. Make sure that the cylinder valve is easily accessible.