Hardware Manual COMBILOG 1020
163
G. Algorithms for special meteorological parameters
Index of constants
SVP
= Saturation vapor pressure in hPa
VP
= Actual vapor pressure in hPa with air temperature TT
TT
= Dry bulb temperature in °C
HT
= Wet bulb temperature in °C
SP = Air pressure, reduced to average gravity and 0°C, at
station altitude; normally 1013.246 hPa is calculated
RF
= Rel. humidity in %
DT
= Dew point temperature in °C
(
)
C
HT
=
+
0 00066 1 0 00115
.
*
.
*
C
1
=
6.1078
C
2
= 17.84362
(at TT < 0°C)
C
2
= 17.08085
(at TT > 0°C)
C
3
= 245.425
(at TT < 0°C)
C
3
= 234.175
(at TT > 0°C)
Summary of Contents for COMBILOG 1020
Page 1: ...COMBILOG 1020 Datalogger Hardware Manual Version 3 09...
Page 2: ...Hardware Manual COMBILOG 1020 2 Issue 03 11 2005 Technical data are subject to change...
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Page 86: ...Hardware Manual COMBILOG 1020 86 Bild 8 1 Example Master Slave System...
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