Hypertherm XPR300 User Manual

Diagnostics and Troubleshooting
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344 809480 Instruction Manual XPR300
4. Locate the pilot arc relay (CR 1) and remove the dust cover .
5. Have a second person close (push in) the contact on the pilot arc relay.
6. Measure the ohms between the nozzle and the workpiece. Less than 3 ohms is good. A value
greater than 3 ohms indicates a faulty connection between the torch and ignition console, or
between the ignition console and the power supply, or between the power supply work lead and
workpiece.
4
5
5
6
(+)
21
(-)
22

Hypertherm XPR300 Specifications

General

Cutting Current	300 A
Duty Cycle	100% at 300 A
Technology	X-Definition Plasma
Gas Supply	Oxygen, Nitrogen, Air
Cutting Capacity (Mild Steel)	38 mm (1.5 in)
Severance Capacity (Mild Steel)	75 mm (3 in)
Pierce Capacity (Mild Steel)	50 mm (2 in)
Input Voltage	200–480 V, 3-PH, 50/60 Hz