3-9
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Setting the NC4 barrier air pressure
WARNING: Before setting the air pressure, ensure that the machine is safe to work on.
1. Ensure that electrical power is applied to the NCi-6 interface unit.
2. Monitor the set-up voltage as shown on pages 4-8 and 4-10.
3. Switch on the air supply.
4. Gradually increase the air pressure until a well dened laser beam is emitted from the transmitter and
the set-up voltage is near its peak.
5. Note the pressure on the pressure gauge and increase the pressure by an additional 0.05 MPa
(7.25psi). Check that the prole of the laser beam is circular.
NOTES:
If the air supply pressure varies while the machine is operating, the air pressure to the NC4 unit may need
to be increased to allow for this pressure uctuation.
For illustration of this set-up procedure, view the “Check air pressure” video guide in the NC4 mobile app.
Conversion table
MPa Bar psi
0.2 2 29
0.4 4 58
0.6 6 87
0.8 8 116
1 10 145
Regulator
Pressure gauge
Outlet
Inlet
Auto-drain
Purge air vent
Membrane dryer
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