Campbell Scientific CS135 Lidar Ceilometer - Manual (Page 57)

User Guide
49
LINE 2
S WA9h1
9
h2
9
h39flags CR LF
where
S (1 character) = message status:
0 = No significant backscatter
1 = One cloud base detected
2 = Two cloud bases detected
3 = Three cloud bases detected
4 = Full obscuration determined but no cloud base detected
5 = Some obscuration detected but determined to be transparent
/ = Raw data input to algorithm missing or suspect
WA (1 character) = Warning or alarm status:
0 = No alarm or warning
W = Warning
A = Alarm
h1 (5 characters) = 1st Height
If detection status is 1, 2 or 3 h1 = Lowest cloud base reported
If detection status is 4 h1 =
Vertical visibility as calculated
If detection status is 0 or 5 h1 = "/////"
h2 (5 characters) = 2nd Height
If detection status is 2 or 3 h2 = Second highest cloud base reported
If detection status is 4 h2 =
H ighest signal received
If detection status is 0, 1 or 5 h2 = "/////"
h3 (5 characters) = 3rd Height
If detection status is 3 h3 = Highest cloud base reported
If detection status is 0, 1, 2, 4 or 5 h3 =
"/////"
flags (12 characters) = Alarm or warning information.
Same as for messages 101 – 106
CR LF = Carriage Return + Line Feed
LINE 3
__d_h1h1h1__d2_h2h2h2__d3_h3h3h3__d4_h4h4h4__d5_h5h5h5 CR LF
(note spaces)
where
d (1 character) = Data available