TESTO 6681 Instruction Manual page 123

Basic Explanation
settings
Setting the absolute pressure and selection of the H
evaporation process for the parameter °Ctm).
Absolute The absolute pressure is included in the calculation of the
pressure following units:
-
-
-
The calculation of the mixture dewpoint unit °Ctm is
H2O2 process
dependent upon the type of the evaporation process:
-
-
-
P2A software
°C or °F
tdA tdA
g/kg or gr/lb
ppm /% vol.
V
with passive vaporization: H
via H O water)
2 2
with active vaporization: H
over a heated metal plate ( with evaporated H
Input field: Entering the weight proportion of the liquid
H O compared to water in %.
2 2
- 3.3 Using the software 123
O solution evaporates (
2 2
O solution is evaporated
2 2
O
2 2
O )
2 2