Magnum Venus Plastech Megaject RTM Pro Revison 7_0 - Manual (Page 38)

Megaject RTM Pro Manual – Revision 7.00 – 13
th
APRIL 2006
Sequence Step Autosprue 1 Autosprue 2 Autosprue 3 Autosprue 4
1 FLUSH FLUSH FLUSH FLUSH
2 FLUSH
3 FLUSH
4 FLUSH
5 FLUSH
6 FLUSH FLUSH FLUSH FLUSH
Table 4.0 – Four autosprue flush sequence
For single autosprue operation or for use without autosprue the single sprue flush
duration is used.
4.3. Catal Alarm
The Catal configuration screen can be seen in Figure 4.3 and allows the user to adjust
the threshold of the Catal alarm. On each complete stroke of the catalyst pump, the
maximum output from the Catal transducer in the outlet line from the catalyst pump is
recorded and compared with the Catal threshold value. If this reading falls below this
threshold an alarm is raised.
Figure 4.3 – Catal configuration screen
The reading from the Catal has no units, and is an indicator of flow. The full range of
this unit has been calibrated to give a range of 0-100%. It must be remembered that
depending on the percentage of catalyst used and flow rate, the value of this threshold
will vary and it should be set to accommodate the lowest catalyst percentage at the
lowest flow rates being used. This value should be set by monitoring the Catal graph
during an injection to get an indication of what setting should be used.
If the threshold is set to 0, an alarm will never be generated. This value should only be
used for maintenance procedures, which may include determining an appropriate
threshold value.