Specifications

4 Appendix C
SRS Residual Gas Analyzer
How does the PPM100 interface to
the SRS RGA?
A very important feature of the PPM100 controller is that it eliminates the requirement to connect the
SRS RGA to a host PC computer. The RGA is instead connected directly to the PPM100 controller
through its standard RGA-RS232 serial interface port and all data is displayed on the front panel of the
controller.
Warning! PPM100 is not compatible with third-party residual gas analyzers
A menu-driven user-interface allows the PPM100 operator to easily program all required RGA Setup
parameters from the controller’s front panel- i.e. no RGA Windows software interface is required.
Note that the PPM100 is a standalone instrument - there is no need to connect the controller itself to an
external computer to access its full performance and functionality.
Figure 2. Back panel of the PPM100 controller. Connect the SRS RGA to the
RGA RS-232 (DB-9) connector using a standard serial communication cable.