Nordson EFD ValveMate 7140, Руководство по эксплуатации

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Testing the Spray Valve
1. Set tank pressure. For low viscosity, low pressures and high viscosity,
higher pressure.
2. Using the Mode button on the ValveMate controller, place the
controller in the PURGE mode. In PURGE mode, Actuating Air can be
selected independently of Nozzle Air by following “How to purge with or
without nozzle air” on page 6. Pu1
will purge without nozzle air. Pu2
will purge with nozzle air.
3. Place a container under the spray valve and press the CYCLE button
to open the spray valve and flow material until all air is purged from the
system. Adjust the tank pressure, or valve stroke knob to set a flow rate
that is not too low or too high. A good starting point for a fine spray is one
drop of fluid per second. For heavier spray, increase the drop rate just
below where the flow becomes a steady stream. Adjust flow using a
combination of tank pressure and valve needle stroke.
4. Set nozzle air pressure regulator to 10 psi (0.7 bar).
5. Using the PURGE mode again, actuate the spray valve and observe the
spray Press mode and place controller in SETUP mode. Using the
or
buttons, set a spray time of .05 seconds.
6. Press the CYCLE button to initiate a spray cycle. Increase or decrease
the time or tank pressure to arrive at the desired deposit size. The primary
control of deposit size is the valve open time. Final time setting may
be different for each valve as this is the way we compensate for minor
variations in tubing length or tolerance stack up.
7. The system is now ready to be initiated by the machine controls when
the machine is started.