Magnum Venus Plastech DP-1000 (EPO3) - Manual (Page 30)

APPENDIX A
OPTIONAL EQUIPMENT
Air-Assist Nozzle
The optional Air-Assist Nozzle can be provided with a pressure gauge and regulator on the front panel o the
unit. This nozzle includes a small mixing element which can be supplemented by inserting a standard
turbulent mixer into the front of the gun-head. An air line goes to the air-assist nozzle.
The nozzles available for the air-assist are different from the standard MVP H.I.S. nozzles (see Appendix B for
list).
If frothing is seen during application, the pressure is too strong and should be reduced. Increase pressure to
the air-assist nozzle from the front panel regulator labeled AIR ASSIST.
A properly adjusted air-assist nozzle distributes material evenly across the spray fan without excessive fuming
or misting. If air-assist adjustment does not produce a good pattern, increase the temperature at the in-line
heaters until the pattern improves.
Chopper
An optional Chopper for chopping fiberglass roving can be supplied with your EPO3 spray gun. The Chopper
is easily mounted to the top of the gun handle and is adjusted with two eccentric washers which can be turned
to vary the spray angle of the Chopper. The Chopper can also be adjusted up and down vertically to match the
fiberglass spray patter with the resin spray pattern. An ideally adjusted Chopper has glass distributed evenly
across the resin fan without excessive fly-away strands. Several spray tests on a paper target are necessary
to properly set the Chopper.
Digital Resin Meter
This meter uses an optical sensor
mounted on the fluid pump shaft which generates a “count” number. This
number can be easily translated to fluid flow by volume or weight.
The Digital Resin Meter can also be supplied optionally with an internal electric/pneumatic interface valve.
This valve can be used to automatically shut off the automatic H.I.S. gun-head. The gun-head can be
equipped with a pneumatic ON/OFF switch allowing you to press the ON switch and wait for the digital counter
to shut off the gun when the preset optical sensor count has been reached.
Nitrogen Accumulator Charging System
DANGER: Nitrogen Bottles Should Be Chained Securely!
When high operating pressures must be reached, it may be preferable to use the optional Nitrogen
Accumulator Charging System. This is a single stage regulator which can be attached to a standard dry
nitrogen bottle (see Figure 37).
To use the Nitrogen Accumulator Charging System, use the following procedure:
 Be sure the following controls are properly set:
1. MAIN PRESSURE regulator “OFF.”
2. MAI
N PRESSURE toggle switch “ON.”
3. RECIRCULATION regulator “OFF.”
4. RECIRCULATION toggle switch “ON.”
5.
Fluid pressure gauge (hardener pump) reads “0.”