All Weather Inc 8339, Руководство пользователя

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Model 8339 Ceilometer User’s Manual
37
7. TROUBLESHOOTING
7.1 USING THE STATUS MESSAGE
The first step in troubleshooting Ceilometer problems is consulting the output message’s status
message. This is a six-character hexadecimal code that follows immediately after the TR1 identifier in
the data string (see
Data Format on page 13). The status codes are identified in the table below.
Table 23. Ceilometer Status Codes
Status Code Meaning
800000 failure condition
400000 warning condition
200000 factory use
100000 dirty window alert
080000 automatic gain control (AGC) failure
040000 supply voltage fault
020000 laser temperature control warning
010000 missing pulse
008000 door open
004000 blower/heater ON
002000 reboot
001000 configuration failure
000800 laser power low
000400 not currently used
000200 not currently used
000100 control board failure—configuration failure
000080 optical module board failure
000040 receiver board failure
000020 blower/heater fault
000010 optical module heater failure
000008 optical module temperature low
000004 laser temperature control (Peltier device) failure
000002 laser temperature low
000001 laser temperature high
When more than one error is detected, the errors are summed and the result is output in the status
message. (For example, if the enclosure door was detected as being open (008000), the blower/heater
ON was detected (004000), and a control board fault was detected (000100), the resulting sum would
be 00C100 (C is the hexadecimal equivalent of 12). In this case, a failure condition would be present,
so the full status message would be 80C100).
The status message will generally provide a good indication of the source of the fault. Bear in mind
that not every warning or failure requires corrective action; some fault conditions will return to normal
on their own.