Kipp & Zonen LAS, Инструкция по эксплуатации

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Figure 28: Real time monitoring of LAS/XLAS measurements of “LAS” ( SLAVE ) data logger via the
COMBILOG support software (applies to LAS-RET system!).
Table 4: Symbol, measurement range and units of (optional) sensors of LAS-systems.
Sensors Symbol Unit Range
1 Air temperature upper level
(Derived from upper PT100) T+
o
C -20 to +50
o
C
2 Air temperature lower level
(Derived from lower PT100) T-
o
C -20 to +50
o
C
3 Relative humidity DRH % Default @ 50 %
9
4 Air pressure Pres hPa 600 to 1050 hPa
5 Wind speed U m s
-1
0 to 60 m s
-1
6 Wind direction WD or DWD
o
0 to 360
o
7 Soil heat flux plate 1
G
1
or HFP
1
-sn
××× W m
-2
-200 to +200 W m
-2
8 Soil heat flux plate 2
G
2
or HFP
2
-sn
×××
W m
-2
-200 to +200 W m
-2
9 Net radiation
Rn-sn
××× W m
-2
-250 to +1500 W m
-2
10 Resistance upper PT100
PT100-sn
××× Ω
80 to 120
Ω
11 Resistance lower PT100
PT100-sn
××× Ω
80 to 120
Ω
LAS/XLAS signals Symbol Unit Range
1 Scaled C
n
2
(= PUCn21000)
( C
n
2
= PUCn21000 * 1.10
-15
)
PUCn21000 m
-2/3
0.01 to 1000 m
-2/3
2 Standard deviation of PUCn21000 Std PUCn21000 m
-2/3
3 U
CN2
(expressed as a voltage)
( )
12 2
2
10
−
=
CN
U
n
C
Cn2 V -5 to 0 V
4 Standard deviation of U
CN2
(expressed as a
voltage)
Std Cn2 V
5 Signal strength (U
Demod
) Demod mV -1000 to 0 mV
6 Standard deviation of signal strength (U
Demod
) Std Demod mV
9
The LAS-BET and RET system are not supplied with a humidity sensor. Instead a default value of 50% is used
(the default value can be easily altered).