Campbell Scientific CS135 Lidar Ceilometer User Manual
Page 43

User Guide
35
h2 (5 characters) = 2nd Height 
If detection status is 2, 3 or 4 h2 = Second highest cloud base reported 
If detection status is 5 h2 =
H
ighest signal received
If detection status is 0, 1, or 6 h2 =
"/////"
 
h3 (5 characters) = 3rd Height 
If detection status is 3 or 4 h3 = Third highest cloud base reported 
If detection status is 0, 1, 2, 5 or 6 h3 =
"/////"
 
h4 (5 characters) = 4th Height 
If detection status is 4 h4 = Highest cloud base reported 
If detection status is 0, 1, 2, 3 or 5 h4 = "/////" 
 
flags (12 characters in 3 groups of 4, space separated) = Alarm or warning information. 
Refer to Message 001 for a breakdown of the flags. 
 
CR LF = Carriage Return and Line Feed 
 
 
 
 
LINE 3 
scale9res9n9 energy9lt9ti_bl9pulse
9
rate9sum CR LF
 
where 
 
scale (5 characters) = Attenuated_SCALE parameter, %, 0 ... 99999. 100% is default 
 
res (2 characters) = Backscatter profile resolution in metres. 
 
n (4 characters) = Profile length 2048 
 
energy (3 characters) = Laser pulse energy, %. 
 
lt (3 characters including leading +/-) = Laser temperature, degrees C 
 
ti (2 characters) = Total tilt angle, degrees
bl (4 characters) = Background light, millivolts at internal ADC input (0 ... 2500) 
 
pulse (4 characters) = Pulse quantity x 1000 (0000-9999) 
 
rate (2 characters) = Sample rate, MHz, (00-99) 
 
sum = Sum of detected and normalized backscatter, 0 ... 999. Multiplied by scaling factor times 
10
4
. At scaling factor 100 the SUM range 0 ... 999 corresponds to integrated backscatter 0 ... 0.
srad
-1
.
 
CR LF = Carriage Return + Line Feed 
