Vaisala HMD70 User Manual
Page 15
HMD70U/Y Transmitters
U303en-1.1
Operating Manual
1997-07-31
11
6.3
General
Supply voltage range depends on the selected output signal.
When AC supply is used, an isolated source is recommended.
The current outputs require an optional output module,
part no.18945HM.
DC
AC
0...1 V
10...35 V
9...24 V
0...5 V
14...35 V
12...24 V
0...10 V
19...35 V
16...24 V
0...20 mA
(R
L
= 0
Ω
)
10...35 V
11...24 V
0...20 mA
(R
L
= 500
Ω
)
20...35 V
17...24 V
Factory setting 0...1V. Other outputs selectable by jumper connections.
An output change causes an error which is less than 0.5 %RH
without recalibration.
Operating temperature range:
electronics
-5...+55
°
C
sensor head
-40...+80
°
C
Storage temperature range
-40...+80
°
C
Housing:
sensor head
stainless steel
electronics housing
cast aluminium
Cable glands
bushing
for 7...10 mm (PG9) cable
(housing IP65/ NEMA 4),
part no 18941HM
or armoured cable glands
part no 10528HM
Sensor protection:
standard
membrane filter
(part no. 17039HM)
option
stainless steel sintered filter
(part no. HM46670)
Connections
screw terminals 0.5...1.5 mm2