Stanford RGA Residual Gas Analyser

The new 120, 220 and 320 amu residual gas analyzers from SRS offer increased mass range, better performance, and new capabilities like built-in analog I/O. Building on the previous RGA100 series, SRS continues to offer unmatched value with the RGA120 series. Each RGA system comes complete with a quadrupole probe, electronics control unit (ECU), and a real-time Windows software package that is used for data acquisition and analysis, as well as probe control.

Features:

• 120, 220, and 320amu systems
• Built-in I/O ports, relay and GPIO
• Easy peak tuning
• 5 x 10^-14 Torr detection limit
• New RGASoft Windows software
• Hybrid electrometer for improved baseline sensitivity
• USB, RS232 and Ethernet interfaces

Rugged Probe Design
The probe consists of an ioniser, quadrupole mass filter and a detector. The simple design has a small number of parts which minimises outgassing and reduces the chances of introducing impurities into your vacuum system. The probe assembly is rugged and mounts onto a standard 2 ¾ " CF flange.

Compact Electronics Control Unit
The densely packed ECU contains all the necessary electronics for controlling the RGA head. It is powered by either an external +24VDC (2.5A) power supply or an optional, built-in power module which plugs into an AC outlet. LED indicators provide instant feedback on the status of the electron multiplier, filament, electronics system and the probe. The ECU can easily be removed from the probe for high temperature bakeouts.

Unique Filament Design
A long-life, dual thoriated-iridium (ThO₂/Ir) filament is used for electron emission. Dual ThO₂/Ir filaments last much longer than single filaments, maximising the time between filament replacement. Unlike other designs, Stanford filaments can be replaced by the user in a matter of minutes.