Magnum Venus Plastech Megaject RTM Pro Revison 7_0 User Manual
Page 31
Megaject RTM Pro Manual – Revision 7.00 – 13
th
APRIL 2006
machine early. It should be noted that this timer will continue to operate if the
injection is paused.
The resin volume set point (SP) value shows the target volume of resin, specified in
the recipe to inject. The actual volume that has been injected is shown below, and is
updated continuously throughout the injection.
The catalyst start the end percentages, defined in the recipe are shown. During the
injection the current catalyst ratio is also displayed for reference.
The head pressure set point defined in the recipe, shows the desired head pressure to
be maintained during the injection. Below this, the actual head pressure is displayed.
Resin flow rate gives the operator the opportunity to monitor the flow rate of the resin
during the injection.
At the right of the screen, below the recipe title is an indicator displaying HD. This
indicator is intended to inform the user at a glance that the machine is in head pressure
control mode. If temperature compensation was enabled within the recipe, a second
indicator would appear under the HD indicator containing the letters TC.
Figure 3.13 – Automatic injection using head pressure control
The GRAPHS button can be pressed to view process graphs of the injection
operation.
The VALUES button can be used to display a screen displaying a range of useful
operational parameters.
To return to the main menu without commencing the injection, the user may press the
CANCEL button.
To start the injection, press the START button. The sounder beacon will operate to
warn users of machine start up, and then the catalyst ratio arms will move the catalyst
pump to the start percentage value. The head valves will then move to the injection
position, selected sprues will open and the injection will start.