User`s guide

Chapter 1 Introducing the Voyager™ Biospectrometry™ Workstations
1-26 PerSeptive Biosystems
1
Vacuum pumps Two vacuum pumps create the vacuum environment:
• Fore pump—Creates a vacuum in the sample loading
chamber, creates a lower-than-atmospheric-pressure
condition before the turbo pump starts, and provides
backing pressure to the turbo pump.
• Turbo pump—Creates a high vacuum condition in the
main source chamber.
Vacuum is maintained in the chambers by valves that isolate
the chambers.
Vacuum gauges The Voyager-DE Biospectrometry Workstation includes two
vacuum gauges:
• BA1 (Bayard-Alpert Gauge)—Monitors pressure in the
main source chamber. Called BA1 on Vacuum Gauge
Panel.
• TC2—Monitors pressure in the sample chamber.
Readings from the vacuum gauges are displayed:
• On the Vacuum Gauge Panel. See Section 1.5.4,
Vacuum Gauge Panel.
• In the System Status Control page in the Instrument
Control Panel. See Section 2.9, Checking System Status.