Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 91)

INSTALLATION
3-42 HPR260 Auto Gas Instruction Manual
5
Gas requirements
The customer must furnish all gases and gas-supply regulators for the system. Use a high-quality, 2-stage pressure
regulator located within 3 m (10 ft) of the selection console. See gas regulators in this section for recommendations.
See Section 2 for gas and flow specifications.
Note: Oxygen, air and nitrogen are required for all systems. Nitrogen is used as a purge gas.
Caution: Gas supply pressures not within the specifications in Section 2 can cause poor cut
quality, poor consumable life and operational problems.
If the purity level of the gas is too low (or too high in the case of methane) or if
there are leaks in the supply hoses or connections,
• Cut speeds can decrease
• Cut quality can deteriorate
• Cutting thickness capability can decrease
• Parts life can shorten
Setting the supply regulators
1. Turn OFF the power to the system. Set all gas
regulator pressures to 8 bar (115 psi).
2. Turn ON the power to the system using the remote
ON/OFF switch or the CNC.
3. Set to Test Preflow.
4. While gas is flowing adjust the supply regulator for the
shield gas pressure to 8 bar (115 psi).
5. Turn OFF Test Preflow.
6. Set system to Test Cutflow.
7. While gas is flowing adjust the supply regulator for the
plasma gas to 8 bar (115 psi).
8. Turn OFF Test Cutflow.