Specifications

6-1
SRS Residual Gas Analyzer
Chapter 6
Programming the RGA Head
This chapter describes how to program the RGA Head from a host computer using the
RGA Command Set and an RS232 Link.
In This Chapter
Introduction ............................................................................................................................................. 6-4
The RGA COM Utility .............................................................................................................................. 6-4
Intoduction .................................................................................................................................. 6-4
Communicating with a Head ..................................................................................................... 6-4
RS232 Interface ....................................................................................................................................... 6-6
LED Indicators......................................................................................................................................... 6-6
Command Syntax.................................................................................................................................... 6-7
Examples of command formats ................................................................................................ 6-7
Programming tips...................................................................................................................... 6-8
Communication Errors........................................................................................................................... 6-9
Command errors ....................................................................................................................... 6-9
Parameter errors........................................................................................................................ 6-9
Jumper Protection violation...................................................................................................... 6-9
Troubleshooting the RGA communications ...................................................................................... 6-11
Programming the RGA Head ............................................................................................................... 6-12
Initializing the RGA Head ......................................................................................................... 6-12
Programming the Ionizer ......................................................................................................... 6-13
Programming the Detector ...................................................................................................... 6-14
Setting up Analog Scans ......................................................................................................... 6-16
Setting up Histogram Scans.................................................................................................... 6-18
Single Mass Measurements..................................................................................................... 6-20
Total Pressure Measurements................................................................................................. 6-22
Storing information in the RGA Head..................................................................................... 6-23
Programming the Quadrupole Mass Filter............................................................................. 6-24
Error Checking the RGA .......................................................................................................... 6-25