Magnum Venus Plastech Megaject MKIV Revision 1_2 - Manual (Page 29)

Megaject MK IV Issue 1_2 25/11/2003 Page 29 of 31
CATAL Catalyst Monitoring System
The CATAL catalyst monitoring system provides a visual and audible indication of catalyst flow during
injection and recirculation.
Operation
Connect the Catal Power Supply to the Megaject. The connection is via the 5 pin DIN
socket located on the back of the Megaject control cabinet.
The Catal power supply is rated at 110 or 240v input, +/- 9V output. If you have the
incorrectly rated unit for your supply, please contact Plastech TT.
The catalyst flow monitor will operate only whilst the machine is pumping
Catalyst flow is indicated on the analogue gauge.
The sensor has been factory set to catalyst flow ranges typical in normal RTM
application i.e. 5kg/minute resin mix at 2% cat. ratio. When the flow range switch is
switched to ‘LOW FLOW’ position the system will indicate a catalyst flow as low as
6ml/minute (e.g. resin mix output of 1kg/minute at 0.5% catalyst). If indicating
towards the maximum level, move the range switch to ‘HIGH FLOW’. If meter
reading reaches top of meter, the sensor element may be moved upwards to
accommodate the higher flow. (see diagram).
It is not necessary to keep readjusting the sensor element. It is simply a coarse
adjustment setting depending on your normal output levels.
The operator can observe the flow rate of catalyst over a wide range of pump speeds
and percentage settings. The audible alarm can be set by turning the alarm setting
control clockwise from zero to a point just below the ‘running level’ (e.g. giving an
alarm when the catalyst flow drops below this setting).