20
Purging valve
A
B
Figure 8. How to close the purging valve of the Pressure Gauge.
To close the gauge, pull the knob up and rotate it counterclockwise. Push the knob down to
lock it. Open valve on gas supply tank. Adjust Pressure Gauge by pulling the knob up and
rotating it clockwise until the pressure reaches the desired value (See Figure 9).
A
B
C
Figure 9. Pressure gauge using.