Specifications

Appendix D

SRS Residual Gas Analyzer

The VI takes a few moments before the scan begins in order to perform some initialization tasks on the

RGA. After this time, you should see a trace corresponding to the partial pressures detected by the RGA

as its mass filter is swept. If the trace does not appear after thirty seconds or you get an error, use the

RGA COM program supplied with your RGA to verify communications are set up correctly. Make sure

the power to the RGA is on (check the power LED), verify the COM port setting is correct, and test the

cabling.

Concepts from the example:

Within LabVIEW, view the block diagram of SRSRGAa Simple Analog (press Control-E if you are

already looking at the front panel of the VI). The next figure shows this block diagram.