Vaisala DM70 - Manual (Page 86)

USER'S GUIDE____________________________________________________________________
Absolute Humidity (DMP74A Probe
Recommended)
Measurement range (typical) 0.5 ... 100 g/m
3
(0.2 ... 40 gr/ft
3
)
Accuracy ± (0.2 g/m
3
+ 10 % of
reading)
± (0.1 gr/ft
3
+ 10 % of
reading)
Mixing Ratio (DMP74A Probe Recommended)
Measurement range (typical) 0.2 ... 100 g/kg
(2 ... 700 gr/lbs)
Accuracy ± (0.1 g/kg + 12 % of
reading)
± (0.8 gr/lbs + 12 % of
reading)
Relative Humidity (DMP74A)
Measurement range 0 ... 100 %
Accuracy at +20 ˚C
RH < 5 % ± (0.025 % RH + 17.5 % of
reading)
RH > 5 % ± (0.8 % RH + 2 % of
reading)
Measurement Environment
Temperature -10 ... +60 ˚C (+14 ... +140
˚F)
Pressure
DMP74A 0 ... 20 bar
a
(0 ... 290 psi
a
)
DMP74B 0 ... 20 bar
a
(0 ... 290 psi
a
)
DMP74C 0 ... 10 bar
a
(0 ... 150 psi
a
)
Sample flow rate No effect on the dewpoint
accuracy
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