Campbell CS135, User Manual

Page: 50 / 70

CS135 Ceilometer
42
CR LF = Carriage Line Feed
LINE 4
scale
9
res
9
n
9
energy
9
lt
9
tr
9
ti _ bl
9
pulse
9
rate
9
sum CR LF
where
scale (5 characters) = 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 l/-) = 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 Line Feed
LINE 5
SSSSSSSSSSSSSSSSSSSSSSSSSSSSS........(2048 x 5 bytes) CR LF
The two-way attenuated normalised backscatter profile
(100000·srad·km)
-1
scaled by the Attenuated _ SCALE parameter. Each sample is coded with a
20-bit HEX ASCII character set; msb nibble and bit first, 2's complement.
The profile is not corrected for the tilt angle.
CR LF = Carriage Line Feed
NOTE