USER'S GUIDE____________________________________________________________________
66 __________________________________________________________________ M211372EN-B
0
20
20
0
10
30
-10
-20
-30
10
30
40
50
60
40
Dewpoint
temperature
(°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
1109-009
Figure 24
DPT146 Dewpoint Measurement Accuracy
Table 15
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 16
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
