Vaisala HMP140 User Manual
Page 17
HMP140A SERIES
U175en-1.5
Operating Manual
1999-12-08
13
6.3
General
Power supply
current outputs:
20...35 VDC
17...24 VAC
min.
12 +
R
L
(ohm)
50
0...1 V
9...35 VDC
9...24 VAC
0...5 V
15...35 VDC
12...24 VAC
0...10 V
20...35 VDC
16...24 VAC
Current consumption
6...10 mA + output currents
Electrical connections
screw terminals for 0.5 - 1.5 mm
2
wires (AWG
15...20), stranded wires recommended
Alternative analogue
output signals (scalable)
0...20 mA (4...20 mA)
0...1 V, 0...5 V, 0...10 V
NOTE! Output scales correspond to 0…100 %RH and -40…+60°C.
External loads for
current outputs
< 500
Ω
0...1 V
> 1 k
Ω
(to ground)
0...5 V
> 5 k
Ω
(to ground)
0...10 V
>10 k
Ω
(to ground)
Operating temperature range
for electronics
-20...+60
°
C
with display option
0...+50
°
C
Storage temperature range -40...+80
°
C
Operating humidity range
0...100 %RH
Bushing
for
∅
7...10 mm cables
Sensor protection
standard
membrane filter, part no. 17039HM
option
plastic grid, part no. 17038
Cable length of HMP143A
standard
2.5 m
maximum
100 m (user extendable, see Appendix 3)
Housing material
ABS plastic
Housing classification
IP65 (NEMA 4)