Vaisala LT31 - LT31 System; Status Codes; Table 13 Status Codes; Table 14 LT31 Overall Status (Byte Number 21)

User's Guide ______________________________________________________________________
164 _________________________________________________________________ M210667EN-C
Status Codes
LT31 System
For decoding the status, see Table 13 below.
Table 13 Status Codes
Byte Number Description
21 LT31 overall status
22 LT31 MOR status
23 LT31 power supply
24 LT31 auto-calibration
25 LT31 window contamination
26 LT31 alignment
27 LT31 reserved for future extension
28 LT31 reserved for future extension
29 LT31 transmitter status
30 LT31 transmitter -> main transmitter module
31 LT31 transmitter -> window transmitter module
32 LT31 transmitter -> measurement CPU
33 LT31 transmitter -> misc.
34 LT31 receiver status
35 LT31 receiver -> master CPU status
36 LT31 receiver -> main receiver module
37 LT31 receiver -> window transmitter module
38 LT31 receiver -> measurement CPU
39 LT31 receiver -> misc.
40 PWD status
For decoding the overall status, see Table 14 below.
Table 14 LT31 Overall Status (Byte Number 21)
Code Explanation Comment
0 OK
I Indication of
abnormal
situation
AC off, operating on battery.
Auto-alignment in process.
W Warning Examples:
Window contamination reached
warning level.
Transmitter LED aging.
Backup battery voltage low.
A Alarm Examples:
Communication error in LT31 system.
Internal monitoring alarm signal
exceeded limit.
E Error Examples:
Transmitter, receiver, PWD (if
configured) or LM21 (if configured) is
missing.
S Service User interface has been opened.