Hardware Manual COMBILOG 1020
164
Saturation vapor pressure
( )
SVP TT
C e
C TT
C
TT
=
+
1
2
3
*
*
by
MAGNUS
(1)
Actual vapor pressure VP
(
)
(
)
VP
SVP HT
C SP
TT HT
=
−
−
*
*
by
SPRUNG
(2)
Rel. humidity RF from dry- and wet bulb temperature
( )
RF
VP
SVP TT
=
*100%
(3)
Dew point temperature DT
a)
Dew point from psychrometric measurement (dry- and wet
bulb
temperature)
DT
C
VP
C
C
VP
C
=
−
3
1
2
1
* ln
ln
(4)
b)
Dew point from rel. humidity and air temperature
DT
C
RF
SVP
C
C
RF
SVP
C
=
⎛
⎝
⎜
⎞
⎠
⎟
−
⎛
⎝
⎜
⎞
⎠
⎟
3
1
2
1
0 01
0 01
ln . *
*
ln . *
*
(5)
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...
Page 4: ...Hardware Manual COMBILOG 1020 4...
Page 6: ...Hardware Manual COMBILOG 1020 6...
Page 12: ...Hardware Manual COMBILOG 1020 12...
Page 86: ...Hardware Manual COMBILOG 1020 86 Bild 8 1 Example Master Slave System...
Page 169: ...Hardware Manual COMBILOG 1020 169...
Page 170: ...Hardware Manual COMBILOG 1020 170...