USER'S GUIDE____________________________________________________________________
72 __________________________________________________________________ M210482EN-D
LINES 15 ... 19
Lines 12 to 16 display the transmitter and receiver settings of the CL31.
Transmitter Pulse Len
= Pulse length, long in normal use (100 ns)
Inlaser
= Controls the peak laser power
Pulse Cnt
= Pulse count, the number of pulses during
a single measurement cycle, 16384 by
default
Pulse Frq
= Laser pulsing frequency (10.0 kHz)
Receiver Gain
= High by default, may be low in fog or
heavy snow
Bandwidth
= Narrow by default
Smpl Rate
= Receiver signal sampling rate, defines the
vertical resolution of the measurement.
Default is 15 MHz which corresponds to
a 10 m resolution.
21ST LINE
Line 21 displays the window contamination status and outlaser settings
of the CL31. The estimated transparency of 90 % to 100 % means that
the window is clean. It is recommended that the window is cleaned
whenever there is a window contamination warning, that is, the
transparency is estimated as 70 % or lower.
Outlaser is the laser pulse energy measured with CLM311 Laser Monitor
Board. The value underneath the outlaser value (on line 17) refers to the
percentage of the laser power relative to the factory setting. The
embedded software will maintain this value between 95 % and 105 %.
22ND LINE
Line 22 displays the background radiance value of the CL31. The
background radiance varies according to the background illuminance
condition and temperature. The following values, outlaser percentage, is
described above.
24TH LINE
Line 24 displays the tilt angle in degrees from vertical. Humidity
measurement is visible if the option is activated.
LINES 26 ... 29
Lines 26 to 29 display temperature values in degrees centigrade. These
values are used for the automatic control of the internal heaters and the
blower, and for status monitoring.
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