HMI Operation
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NOTE:
The current Purge Timer time is shown in the
bottom text box below the Purge Timer button.
Calculating the Purge Timer Setting
If the shot size is larger than the mixer volume, set the
timer for one-half the gel time of the material. If the shot
size is smaller, use the following formula to determine
the Purge Timer setting.
For example, with mixer volume = 13.3cc, shot size =
10cc, gel time = 10 minutes, use the following equation.
Dwell / Alarm Timer
This changes the duration that the audible alarm is
active prior to the purge shot being initiated.
To change the Dwell Timer, perform the following steps.
1. Select the Dwell Timer button. A numeric keypad
appears.
2. Enter the desired Dwell Timer time in seconds. Use
the “.” button to enter tenths of seconds.
3. Press the
button. The new Dwell Timer time
appears in the Dwell Timer field.
NOTE:
The current Dwell Timer time is shown by
<000.0.
Purge Shot Size % button
This button shows the Shot Size volume in percent of
stroke. This volume is dispensed during the ratio check.
To change the Purge Shot Size % volume, perform the
following steps.
1. Select Purge Shot Size % button. A numeric keypad
appears.
2. Enter the desired material shot size volume.
3. Press the
button. The Purge Timer screen
appears. The new shot size percentage appears in
the Purge Shot Size % field.
Number of Strokes During Purge button/indicator
This displays the number of strokes used during the
purge shot.
For example, if the purge shot size is set at 150%, Num-
ber of Strokes During Purge displays “2” and Amount
Per Stroke % displays “75”.
Amount Per Stroke %
This displays the percent of the stroke used during a
shot.
For example, if the shot size is set at 150%, Number of
Strokes During Purge displays “2” and Amount Per
Stroke % displays “75”.
Always set the dwell/alarm timer to a value that will
give the user adequate warning that the machine is
about to dispense a purge shot.
Gel Time X Shot Size
2 X Mixer Volume
= Timer Setting
10 min X 10 cc
2 X 13.3 cc
100 cc*min
26.6 cc
= 3.76 min
=