Diagnostics and Troubleshooting
340 809480 Instruction Manual XPR300
How to measure coolant flow
It is necessary for power to be supplied to the cutting system to measure coolant flow. Use
extreme caution if you do diagnosis or maintenance tasks when the plasma power supply
remains connected to electric power.
Use the CNC or XPR web interface
1. Look at the CNC or XPR web interface to identify the coolant flow rate.
2. Make sure that the coolant flow rate is above 3.79 L/min (1 gal/min).
If the flow rate is outside of the correct range, an internal obstruction or
leak can be the cause.
Do a container test
1. Obtain an empty container that has a capacity of at least 3.79 liters (1 US gallon) and volume
measurements, if possible.
2. Remove the power from the cutting system. Refer to Remove the power from the cutting system
on page 240.
WARNING
ELECTRIC SHOCK CAN KILL
The plasma power supply contains dangerous electric voltages that can seriously injure or
kill you.
Even if the plasma power supply is turned OFF, you can still get a serious electric shock if
the plasma power supply remains connected to an electric power source.
Use extreme caution if you do diagnosis or maintenance tasks when the plasma power
supply remains connected to an electric power source and the outer cover or panels are
removed.
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