Specifications ______________________________________________________________________
Vaisala _________________________________________________________________________ 54
Calculated variables (typical ranges)
With HMP361 probe
dewpoint temperature
-40...+60 °C
mixing ratio
0...160 g/kg d.a.
absolute humidity
0...160 g/m
3
wet bulb temperature
0...+60 °C
With HMP363, HMP364, HMP365 & HMP368
dewpoint temperature
-40...+100 °C
mixing ratio
0...500 g/kg d.a
absolute humidity
0...600 g/m
3
wet bulb temperature
0...+100 °C
Outputs
Two analog outputs
Two wire 4...20 mA
(one standard, one optional)
Typical accuracy of analog
Outputs at +20 °C
±0.05% full scale
Typical temperature dependence
of analog outputs
0.005% / °C full scale
RS232C serial output for service use
connector type RJ45
only in safe area
Output connections via safety barriers
Classification with current outputs
EU (94/9/EC, ATEX100a)
II 1 G EEx ia IIC T4
PTB 00 ATEX 2112 X
Safety factors:
Ui=28 V, Ii=100 mA, Pi =0.7 W
Ci=1 nF, Li=0 H
Environmental
specifications:
Tamb = -20...+60 °C
Pamb = 0.8...1.1 bar
Dust classification:
II 1 D (IP65 T= 70
°
C)
(with protection cover)
VTT 04 ATEX 023X
U.S.A. (FM)
Classes I, II, III
Division 1: Groups A-G
Division 2: Groups A-D, F and G
FM Project ID:3010615
Safety factors:
Vmax=28VDC,Imax=100mA,Ci=1nF, Li=0,
Pi=0.7 W, T
amb
= 60 ºC, T5
