Hypertherm XPR300, Инструкция по эксплуатации

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Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 311
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.
1. Look at the CNC or XPR web interface to identify the coolant flow rate.
2. Make sure that the coolant flow rate is between 3.79 L/min – 11.36 L/min (1 gal/min –
3 gal/min).

If the flow rate is outside of the correct range, an internal obstruction or
leak can be the cause.
3. Use an in-line flow meter (128933) to measure internal coolant flow:
a. Remove the right panel from the plasma power supply.
b. Find the coolant hose located between the heat-exchanger and coolant filter assembly.
c. Remove the coolant hose from the coolant filter assembly.

Use a container to catch coolant leaks.
d. Attach the in-line flow meter (128933) to the hose.
e. Look at the flow meter measurements. Make sure that the flow is between 3.79 L/min –
11.36 L/min (1 gal/min – 3 gal/min).

Coolant flow measurements from different parts of the cooling system,
can identify the location of an obstruction or restriction. You can use an
in-line flow meter to do this. In-line flow meters (128933) are available
from Hypertherm.
WARNING
The plasma power supply contains dangerous electric voltages that can
cause injury or death.
Even if the cutting system is turned OFF, you can still get a serious
electric shock if the cutting 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 electricity and the panels on
the plasma power supply are removed.