Hypertherm XPR300, Instruction Manual

Page: 265 / 402

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 265
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Alert
Low psi-Line A • The Line A pressure (P5) is
less than 75% of the setpoint
for 200 milliseconds, for any
process; or
• P5 is less than 75% of the
P21 sensor reading for 450
milliseconds, for a mixed-fuel
gas process; or
• P5 is less than 75% of the
P7 setpoint for 450
milliseconds, for a F5
process.
1. Review the diagnostic code
history for previous
pressure-related codes. Previous
codes can indicate where to look
for flow or pressure problems.
2. Make sure that the inlet gas
pressure for Line A (P1) or
Line B (P2) are in the correct
range (7.93 bar – 7.24 bar /
115 psi – 105 psi) during gas
flow.
3. If the measurement is too high or
too low, use the regulators to
adjust the pressure for the
Line A/Line B gas or F5 gas to
the correct range.
4. Examine the consumables:
• Make sure that the correct
consumables are installed.
• Make sure that there is no
damage or excess wear.
5. Replace incorrect consumables
or consumables that have
damage or excess wear.
6. Use the gas volume monitors
located near the pressure
transducers to look for gas leaks.
Diagnostic
code number
and category
Diagnostic code
name
Description Corrective action