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RGA100/200/300 Residual Gas Analyzers

probe. The ECU can easily be removed from the probe forhigh-temperature bakeouts. multi-channel, continuous-dynode electron multiplier (EM)offers increased longevity and stability, and can also be replaced by the user SRS RGAs have a built-in degassing feature. Using electronimpact desorption, the ion source is thoroughly cleaned, greatly reducing the ionizer’s contribution to background noise. Afirmware driven filament protection feature constantlymonitors (675 Hz) for over pressure. If over pressure is detected, the filament is immediately shut off, preserving its life.Aunique temperature-compensated, logarithmic electrometerdetects ion current from 10  a first for RGAs. Along-life, dual thoriated-iridium (ThO Useful Features Unique Filament Design
2 /Ir) filament is usedfor electron emission. Dual ThO
2 /Ir filaments last muchlonger than single filaments, maximizing the time between filament replacement. Unlike other designs, SRS filamentscan be replaced by the user in a matter of minutes. The RGAsystems are supported with a real-time Windowssoftware package that runs on PCs. The intuitive graphicaluser interface allows measurements to be made quickly and easily. The program is fully interactive, giving the usercomplete control of the graphical display. Screens can be split for dual-mode operation, scales can be set to linear or log format, and data can be scaled manually or automatically. Data is captured and displayed in real time or scheduled for acquisition at a given time interval for long-term data logging. Features include user-selectable units (Torr, mbar, Pa and A), programmable audio and visual alarms, and comprehensive on-line help. Communication with computers is made via the RS-232interface. Analog and histogram (bar) scans, leak detection, and probe parameters are all controlled and monitored through a high-level command set. This allows easy integration into existing programs. RGA Windows Software
− 7 to 10
−1 5 amps in a single scan,with better than 2 % precision. This huge dynamic range means you can make measurements of small and large gas concentrations simultaneously. Complete Programmability Dual ThO
2 /Ir filament AFaraday cup detector is standard with all SRS RGAs,allowing partial pressure measurements from 10 Continuous Dynode Electron Multiplier
− 5 − 11 Torrto 5 × 10 Torr. For increased sensitivity and faster scan rates, an optional electron multiplier is offered that detectspartial pressures down to 5 RGAWindows software  Analog mode Continuous dynode electron multiplier × 10
− 14 Torr. This state-of-the-art,

Stanford Research Systems phone: (408)744-9040 www .thinkSRS.com