Quick-Start Operating Guide
Series 310 Glove Box
©
Copyright 2017
Terra Universal Inc. All rights reserved. •
Revised Feb. 2017
• Document No. 1788-10
v2.0tm
Terra Universal, Inc. • TerraUniversal.com • 800 S. Raymond Ave. • Fullerton, CA 92831 • TEL: (714) 578-6000 • FAX: (714) 578-6020
8
Vacuum Control Module Set-Up and Operation
Negative pressure applications involving the Vacuum Antechamber often incorporate Terra's Vacuum Control Module.
This module automatically adjusts the vacuum line to maintain a user-selected vacuum pressure.
The back panel of the Vacuum Control Module accommodates the following connections:
AUX POWER
Auxiliary power source for process equipment
VACUUM PUMP
Provides power for vacuum pump
SOLENOID
Provides power for solenoid valve
POWER
Provides system power (connect to 110VAC/60Hz or 220VAC/50Hz power supply)
Power receptacles may look different for 220VAC/50Hz models.
NOTE
The Vacuum Control Module automatically maintains a user-selected vacuum level by controlling a solenoid installed
on the vacuum line. A vacuum sensor, factory-installed in the processing chamber, senses the vacuum pressure.
When the pressure exceeds the set point, the control module closes the solenoid valve, thereby isolating the vacuum
pump. When the pressure falls below the vacuum pressure set point, the control module opens the solenoid valve,
allowing the pump to evacuate the chamber.
To adjust the vacuum set point on the Hasting 760 vacuum controller,
1. Turn power switch on.
2. Push the program button and down arrow momentarily.
3. Sp1 will flash.
4. Using the up-and-down arrows, adjust to desired vacuum setting.
5. Push program button once more.
6. sp2 will flash. sp2 contacts are inactive; do not adjust up or down arrows for sp2.
7. Push program button once more and you will be back in run mode.
8. Current vacuum will be displayed.
9. If you are above your vacuum setting on sp1, then the controller will switch external solenoid receptacle on.
10. If you are below the vacuum setting on sp1, then the controller will not switch on the external solenoid.
The pump should remain in operation during vacuum processing. Avoid turning the pump on and off, or
damage can result. When you have completed vacuum processing, always close the valve on the vacuum
line before turning off the vacuum pump. This will prevent the negative pressure inside a chamber from
drawing lubricant out of the pump (damaging the pump and contaminating the processing chamber). Refer
to QuickStart Guidelines.
CAUTION
To maintain negative pressure inside the glove box, the vacuum system must remain on.
NOTE
