Vaisala DPT146 Guide de l'utilisateur Page 64

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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
1
0
3
0
-
1
0
-
20
-
30
1
0
30
4
0 5
0 6
0
4
0
Dewpoint t
emperature (°C)
Te
m
pe
r
at
ure
of m
eas
ured g
as
(
°C
)
-
40
-
30
-
20
-1
0
70
80
-4
0
-50
-
6
0
N
ot
r
ec
om
m
en
de
d
f
o
r
c
o
nt
in
u
ou
s m
e
as
ur
e
m
e
n
t
D
ew
po
i
nt
m
ea
su
r
em
en
t
lo
w l
i
mi
t
-
70
Ac
cu
r
ac
y
not specified
A
cc
ur
a
cy
±2
°
C T
d
-
8
0
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