SRS Labs QMS 100 Series, Руководство пользователя

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3-22 Programming the RGA ECU
SRS QMS Gas Analyzer
3. The Burnt and Leak LED’s indicate specific filament problems and are turned on, in
addition to the Error LED, whenever the ionizer’s emission is internally shut down or not
established as requested.
4. Error Queries : Queering the Error Bytes with the Error Reporting commands.
The “Error Byte Definitions” section of this chapter describes the different error bytes used
to store the results of the internal checks. The “Error Reporting Commands” query the error
bytes and are used to quickly diagnose problems.
Important : The RGA Windows software supports all the Error Reporting commands and routinely
monitors the Error Bytes. Detected errors are immediately reported to the user and identified based on
Error Codes. See the RGA Troubleshooting chapter for recommended solutions to the problems.
The STATUS error byte is the gateway to error diagnosis:
Important: The RGA is free of detected errors as long as the STATUS byte is
clear (no bits set).
Each bit of the STATUS byte reflects the result of a different type of internal check . Each internal
check involves several different tests on a component of the RGA (See the RGA Troubleshooting
Chapter for details). The results of the specific tests are stored in check-specific error bytes . All error
bytes can be queried by the computer, using the Error Reporting commands, to find out which bits are
set.
STATUS 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) Internal 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) The Error Reporting command that queries the error byte.