Vaisala HMD70U Service Manual Page 147

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145
Technical Data
Ref. B210417EN-H ©Vaisala 2011
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
Δ
°C
°C
-0.7
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
0
0-60
-40
-20 20
40
60
80
-80
Wind
SPEED
range 0 ... 60 m/s
response time 250 ms
accuracy
0 ... 35 m/s ±0.3 m/s or ±3%,
whichever is greater
35 m/s ... 60 m/s ±5%
output resolutions and 0.1 m/s, 0.1km/h,
units 0.1 mph, 0.1 knots
DIRECTION
azimuth 0 ... 360°
response time 250 ms
accuracy ±3°
output resolution and unit
Air Temperature
Range -52 ... +60 °C (-60 ... +140 °F)
Accuracy for sensor at +20 °C ±0.3 °C (±0.5 °F)
Accuracy over temperature range (see graph below)
Barometric Pressure
Range 600 ... 1100 hPa
Accuracy ±0.5 hPa at 0 ... +30 °C (+32 ... +86 °F)
±1 hPa at -52 ... +60 °C (-60 ... +140
°F)
Output resolutions and units 0.1 hPa, 10 Pa, 0.0001 bar,
0.1 mmHg, 0.01 inHg
Relative Humidity
Range 0 ... 100 %RH
Accuracy ±3 %RH within 0 ... 90 %RH
±5 %RH within 90 ... 100 %RH
Output resolution and unit 0.1 %RH
General
Operating temperature -52 ... +60 °C (-60 ... +140 °F)
Storage temperature -60 ... +70 °C (-76 ... +158 °F)
Operating voltage 5 ... 32 VDC
Typical power consumption 3 mA at 12 VDC (with defaults)
Heating voltage 5 ... 32 VDC / 5 ... 30 VAC
RMS
)
Serial data interface SDI-12, RS-232, RS-485, RS-422,
USB connection,
Weight 650 g (1.43 lb)
Housing IP65
Housing with mounting kit IP66
Output resolutions and units 0.1 °C, 0.1 °F
Electromagnetic Compatibility
Complies with EMC standard EN61326-1; Industrial
Environment IEC standards IEC 60945/61000-4-2 ... 61000-4-6
Liquid Precipitation
RAINFALL
cumulative accumulation after the
latest automatic or manual reset
output resolutions and
units 0.01 mm, 0.001 inches
accuracy 5%*
RAINFALL DURATION
counting each ten-second increment
whenever water droplet is detected
output resolution and unit 10 s
RAIN INTENSITY
one-minute running average in
ten-second steps
range 0 ... 200 mm/h (broader range with
reduced accuracy)
output resolutions and
units 0.1 mm/h, 0.01 inches/h
HAIL
cumulative amount of hits against
the collecting surface
output resolutions and
units 0.1 hits/cm
2
, 0.01 hits/in
2
, 1 hits
HAIL DURATION
counting each ten-second increment
whenever hailstone is detected
output resolution and unit 10 s
HAIL INTENSITY
one-minute running average
in ten-second steps
output resolutions and
units
0.1 hits/cm
2
h, 1 hits/in
2
h,
1 hits/h
* Due to the nature of the phenomenon, deviations caused by
spatial variations may exist in precipitation readings, especially
in a short time scale. The accuracy specification does not include
possible wind induced errors.
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