Hypertherm HSD130 HySpeed Plasma - Manual (Page 172)

MAINTENANCE
5-26 HySpeed HSD130 RHF Instruction Manual
Gas leak test procedure (standard system)
The fuel-gas system has 2 automated leak test modes. See Automated diagnostic tests in this section.
Leak test for a standard system (no fuel-gas console)
1. Turn ON the power to the system.
2. After the initial gas purge, move the process selection switch to SET.
3. Adjust the air supply regulator to 5.5 bar (80 psi).
4. Adjust the O
2
supply regulator to 5.5 bar (80 psi).
5. Move the process selection switch to RUN.
6. Disconnect the off-valve cable (1x3)
from the rear panel of the power supply.
7. Move the process selection switch to SET.
8. Turn off the oxygen and the air at the supply.
9. Monitor the plasma pressure and the shield pressure displays for 10 minutes. The pressure should not decrease
more than 0.7 bar (10 psi) in 10 minutes.
10. When the test is complete, reconnect the 1x3 cable, move the process selection switch to RUN, and reset the
incoming gas supply pressures.
1 X 3