Hypertherm XPR300 - How to Set the Regulators; Set the N Regulator

Gas Connect Consoles
2
XPR300 Field Service Bulletin 809970 85
How to set the regulators
This procedure is for when the regulators need to be adjusted in the field.
The N
2
and Ar OptiMix gas connect console (078633) regulators are set at Hypertherm before the
regulators are installed into the gas connect console. The regulators are set in a dynamic condition,
when gas is flowing, with 7.9 bar – 8.6 bar (115 psi – 125 psi)
on the inlet and 6.9bar (100psi) on
the outlet. There is a 1.6 mm (0.063 inch) orifice downstream.
When to adjust regulators:
 If your N
2
Shield inlet (P4) pressure is above 7.5bar (110psi) or below 6.2bar (90psi).
 If your Ar Shield Inlet (P4) pressure is above 7.5 bar (110 psi) or below 6.2 bar (90 psi).
Set the N
2
regulator
1. Install one of the following sets of consumables:
 300 A O
2
/Air
 300 A N
2
/N
2
 300 A Mix/N
2
 170 A O
2
/Air
 170 A N
2
/N
2
 170 A Mix/N
2
2. Use the XPR web interface to load one of the following processes:
 2100 for the 300 A consumables
 2057 for the170 A consumables
3. Remove the cover from OptiMix gas connect console.
4. Pop the N
2
regulator knob up so the orange indicator is visible.
5. Go to Gas System in the XPR web interface.
N
2
Ar