Technical Data - Vaisala HMD70U Operating Manual

TECHNICAL DATA

Relative humidity
Measurement range
Accuracy at 20 °C
Temperature dependence
Response time (90%)
at +20 °C in still air
Humidity sensor
Temperature (Y model only)
Measurement range
Accuracy
Linearity
Temperature sensor
General
Supply voltage range depends on the selected output
signal. When AC supply is used, an isolated source is
recommended. The current
optional output module, part no. 18945HM.
0...1 V
0...5 V
0...10 V
0...20 mA (R L = 0 Ω)
0...20 mA (R L = 500 Ω)
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.
4
HMD70U/Y Operating Manual
0...100 %RH
15 s with membrane
filter
INTERCAP 15778HM
-20...+80 °C
better than 0.1 °C
Pt 1000 IEC 751class B
outputs require an
DC AC
10...35 V 9...24 V
14...35 V 12...24 V
19...35 V 16...24 V
10...35 V 11...24 V
20...35 V 17...24 V
Operating temperature range:
electronics
sensor head
Storage temperature range
Housing:
sensor head
electronics housing
Cable glands
bushing
or armoured cable glands
Sensor protection:
standard
option
Connections
Electromagnetic compatibility
The emission and immunity tests have been
performed according to standard EN 61326-1:1997 +
Am 1:1998, Electrical equipment for measurement,
control and laboratory use- EMC requirements; Light
environment.
Emissions:
Test
Radiated interference
Immunity:
Test
Electrostatic discharge
Electrical fast transients
RF-radiated fields
*GSM-field immunity
(*additional test)
GUARANTEE
Vaisala issues a guarantee for the material and
workmanship of this product under normal operating
conditions for one year from the date of delivery.
Exceptional operating conditions, damage due to
careless handling or misapplication will void the
guarantee.
Vaisala Oyj
Vanha Nurmijärventie 21,
FI-01670Vantaa, Finland
M210277EN-C
-5...+55 °C
-40...+80 °C
-40...+80 °C
stainless steel
cast aluminium
for 7...10 mm (PG9)
cable (housing IP65/
NEMA 4),
part no 18941HM
part no 10528HM
membrane filter
(part no. DRW010525)
stainless steel sintered
filter
(part no. HM46670)
screw terminals
0.5...1.5 mm 2
CISPR16, class B
Setup according to
EN/IEC 61000-4-2
EN/IEC 61000-4-4
EN/IEC 61000-4-3
ENV50204:1995,
criteria A