Operation
3-8
Part 106913
−
04
E
2018 Nordson Corporation
Vent-Assist Air Pressure Adjustment
To maintain a neutral air pressure in the sieve so it can function properly, the
compressed air used to convey the reclaimed powder to the accumulator is
vented into the color module. Vent-assist air creates low pressure in the
vent tube and increases the air flow. Use the following procedure to adjust
the vent-assist air pressure.
NOTE:
The vent-assist air pressure regulator is located either on the sieve
pneumatic panel, or on the system pneumatic panel.
1. Disconnect the scrap hose from the sieve.
2. Secure a paper or plastic bag to the scrap port with a worm clamp, cable
tie, or rubber band.
3. Start the exhaust fan, sieve, and transfer pumps.
4. Watch the bag. If it inflates, increase the vent-assist air pressure. If it
deflates, decrease the vent-assist air pressure.
Daily Startup and Shutdown Procedures
Use these procedures for routine operation of your system.
Startup
1. Turn on the system electrical power and compressed air supply.
2. Walk around the booth and verify that the:
S
system equipment is connected to ground
S
flame detector system is on
S
skirt seal is securely fastened to the color module and base
S
transfer and feed hoses are connected to the pumps, accumulators,
and spray guns.
3. Turn on the exhaust fan. Set the transfer pump switch to AUTO. Set
the conveyor switch to NORM.
4. Turn on the automatic-gun master control unit and the manual-gun
control units.
5. Adjust the kV settings and the powder-pump air pressures, if necessary.
Refer to your spray gun and control unit manuals.
6. Start the conveyor and start spraying workpieces.
7. Check the air flow through the enclosure. Make sure the sprayed
powder is not being pulled from the spray guns and workpieces, or
escaping from the enclosure openings. Adjust the fan damper (Horizon
400 only) as needed. Air flow through each opening must be
maintained at 30 m/min (100 fpm), minimum.
Содержание HORIZON 200
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