Vaisala DPT146 - Manual (Page 64)

User's Guide _______________________________________________________________________
62 ___________________________________________________________________ M211372EN-D
1109-009
Figure 24 DPT146 Dewpoint Measurement Accuracy
Table 16 Operating Environment
Property Description / Value
Operating temperature of electronics -40 … +60 °C (-40 ... +140 °F)
Pressure 0 … 50 bar (0…725 psi)
Relative humidity 0 ... 100 %
Measured gases Air/non-corrosive gases
Sample flow rate No effect on measurement accuracy
Table 17 Outputs
Property Description / Value
Analog outputs (2 channels)
current output 0 … 20 mA, 4 … 20 mA
voltage output 0 … 5V, 0 …10V
Accuracy of analog outputs ± 0.01 V / ± 0.01 mA
Digital output RS-485, non-isolated, Vaisala protocol
Connector 4-pin M8
0 20
20
0
10
30
-10
-20
-30
10 30 40 50 60
40
D
ew
po
in
t
te
m
pe
ra
tu
re
(°
C
)
Temperature of measured gas (°C)
-40 -30 -20 -10 70 80
-40
-50
-60
Not recommended for
continuous measurement
Dewpoint measurement low limit
-70
Accuracy not specified
Accuracy
±2 °C Td
-80