Stanford Research Systems RGA100, Operating Manual And Programming Reference

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Error Byte Definitions 6-69
SRS Residual Gas Analyzer
Error Byte Definitions
The Error Bytes described in this section store the results of the firmware-driven checks
built into the RGA Head. Use the Error Reporting commands to query the value of the
bytes.
Important : No errors are present as long as all bits in the Error Bytes are cleared.
The RGA Windows software supports all the Error Reporting commands and reports the
errors detected based on their Error Codes.
The RGA Troubleshooting chapter identifies the different problems based on their Error
Codes and suggests possible causes and solutions.
Bit Internal Check
(a)
ERROR Byte
(c)
Query
(d)
7 not used N.A. N.A.
6 24V External P/S
(b)
PS_ERR EP?
5 Electrometer
(b)
DET_ERR ED?
4 Quadrupole Mass Filter
(b)
QMF_ERR EQ?
3 Electron Multiplier CEM_ERR EM?
2 not used N.A. N.A.
1 Filament FIL_ERR EF?
0 Communications RS232_ERR EC?
(a) RGA component checked. Each check involves several tests on the component.
(b) Checks automatically performed upon a power-on-reset
(c) Error bytes that store the results of the tests for each type of internal check.
(d) Error Reporting command that queries the error byte.
STATUS Error Byte : General Status byte. Each bit corresponds to a different type of
internal check.