HBC-4301 Operators Manual - Novatech Controls

5.2 Vacuum / Pressure setup
Fig. 5 Vacuum / Pressure Setup Screen
5.2.1 Vacuum Pump #1
This pump has the same pumping capacity as vacuum pump #2. It can be turned on and off
from the PC or the control case. The vacuum level can be monitored by using either of the
external vacuum sensors.
For more details on the specifications of the vacuum pumps see chapter 7, Vacuum Pumps.
5.2.2 Vacuum Pump #2 Control
The pump can be controlled in three ways:
1. Manual Control - Set the pump drive level to a value between 0 and 100%
2. Automatic Control, Fixed Vacuum - Set a vacuum pressure level. The HBC-4301
will control the pump #2 drive to maintain the vacuum level using the Control
Sensor.
3. Automatic Control, Zone Control- The vacuum will follow the vacuum profile set in
the Control Functions Menu, Zone Temperature Profiles. The operator can set the
vacuum level for each stage of the temperature profile.
The pump can also simply be turned on and off. When the screen is selected the space bar
can be used to toggle the pump #1 on and off. If the Tab key is pressed before the space bar
the pump #2 will be toggled on and off.
The vacuum can be displayed in Kilopascals (kPa), Inches Hg, Atmospheres or bars.
The pressure can be displayed in Kilopascals (kPa), PSI or bars.
The external inputs must be Enabled before the measurement will be displayed or graphed.
The vacuum or pressure tick box selection must match the selection in the HBC-4301 control
case.
See chapter 9.4, Monitoring the vacuum / pressure for more details.
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