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HMW40/50 and HMD40/50 Wall and
Duct Mount Transmitters for HVAC Applications
The two and three-wire Vaisala
INTERCAP
®
Humidity and
Temperature Transmitters HMD/W40
and HMD/W50 are designed for use
in energy management systems in
buildings. They combine excellent
stability with easy installation and
reliable operation. The HMD40/50
are for duct installations and the
HMW40/50 for wall installations.
Low maintenance costs
The HMD40/50 humidity transmitters
use Vaisala INTERCAP
®
Sensor -
the world’s rst interchangeable
capacitive humidity sensor. The
transmitters require no recalibration
if the sensor is changed. This means
great savings in overall maintenance
costs. The sensor is also insensitive
to dust as well as most chemicals.
Vaisala INTERCAP
®
Humidity and Temperatur e Transmtters HMD/W40/50 are
competitively priced and require no routine maintenance – a smart choice for your
HVAC/EMC applications.
Measures both humidity
and temperature
The 40/50 series is available as
humidity and temperature (Y), or
humidity only (U) transmitters. The
transmitters measure humidity with
a ±3 %RH accuracy and a ±1 %RH
stability per year.
Selectable functions
(HMD/W50)
The HMD/W50 transmitters feature
selectable output signals of 0 to 1 V
and 0 to 10 V. They can be powered
by either AC or DC voltage.
Features/Benefits
▪
Specially designed for building
energy management systems
▪
10 ... 90 %RH measurement
▪
-10 ... +60 °C (+14 ... +140 °F)
operating range for duct units
▪
-5 ... +55 °C (+23 ... +131 °F)
operating range for wall units
▪
4 ... 20 mA 2-wire output
(HMD/W40)
▪
Selectable voltage 3-wire
output (HMD/W50)
▪
Combines excellent stability
with easy installation and
reliable operation
▪
No recalibration
▪
Fully interchangeable Vaisala
INTERCAP® Sensor is easy to
replace
▪
Low cost
In energy management systems, the
accurate measurement of relative
humidity and temperature is essential
for optimum control of the environment.
Technical data
Relative humidity
Measurement range
(for which accuracy is specified)
10 ... 90 %RH
Operating range
HMD40/50 0 ... 100 %RH
HMW40/50 0 ... 90 %RH
Accuracy at +20 °C (+68 °F) better than ±3 %RH
Stability ±2 %RH over 2 years
Temperature dependence <±1.5 %RH from -10 ... +60 °C
(+14 ... 140 °F)
Sensor INTERCAP
®
Sensor, part no. 15778HM
Dimensions
Dimensions in mm.
INTERCAP
®
is a registered trademark of Vaisala
Temperature (40Y and 50Y)
Measurement range
HMD40/50 -10 ... +60 °C (+14 ... +140 °F)
HMW40/50 -5 ... +55 °C (+23 ... +131 °F)
Total accuracy at +25 °C ±0.3 °C (±0.54 °F)
Temperature dependence 0.01 °C/°C (0.01 °F/°F)
Sensor Pt 1000 IEC 751 class B
General
Output signal for relative humidity (equals 0...100 %RH)
HMD/W40 4 ... 20 mA
HMD/W50 0 ... 1 V & 0 ... 10 V
Output signal for temperature
HMD/W40 4 ... 20 mA
HMW50 0 ... 1 V & 0 ... 10 V
HMD50 0 ... 10 V
HMD40Y, HMD50Y equals -40 ... +60 °C (-40 ... 140 °F)
HMW40Y, HMW50Y equals -5 ... +55 °C (+23 ... 131 °F)
Ref. B210945EN-A ©Vaisala 2010
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
Power supply
HMD/W40 10 ... 28 VDC
HMD/W50 for 0 ... 1 V output: 12 ... 35 VDC/12 ... 24 VAC
for 0 ... 10 V output: 15 ... 35 VDC/15 ... 24 VAC
Electromagnetic compatibility: Complies with EN61326-1,
Generic Environment
Current consumption
HMD/W50 6 mA typical
Operating temperature range
HMD40/50 -10 ... +60 °C (+14 ... +140 °F)
HMW40/50 -5 ... +55 °C (+23 ... +131 °F)
Storage temperature range -40 ... +60 °C (-40 ... +140 °F)
Operating humidity range
HMD40/50 0 ... 100 %RH
HMW40/50 0 ... 90 %RH
Housing
Material ABS plastic
Classification (HMD40/50) IP65(NEMA 4)
Colour(HMW40/50) NCS0502-G50Y
HMD40/50
HMW40/50
- HUMIDITY / DEW POINT / 1
- Vaisala – at your service 3
- Building Automation 5
- Cleanrooms and Chambers 5
- Humidity 7
- 37.5 (1.48) 9
- 78.5 (3.09) 9
- 98.5 (3.88) 9
- Ø 12 (0.47) 9
- 120 (4.72) 10
- 170 (6.69) 10
- 41 (1.61) 10
- Duct installation kit 11
- Temperature Transmitters 12
- Transmitter 15
- Indoor Applications 17
- Chambers 22
- Vaisala INTERCAP 23
- Humidity and Temperature 23
- Probe HMP60 23
- Vaisala HUMICAP 24
- Probe HMP110 24
- HMI41 Indicator and 26
- HMP46 High Temperature Probe 26
- Performance 29
- Interchangeable Probe 29
- Available Options 29
- Technical Data 30
- HMK15 Humidity Calibrator 31
- DTR500 Solar Radiation and 33
- Precipitation Shields 33
- The Vaisala HUMICAP 36
- Transmitter Series HMW80 37
- HVAC Applications 39
- WITH OPTIONAL CURRENT MODULE 40
- **0 … 20 mA (R 40
- 1/8"-27 NPT 41
- Ensure dry 43
- OEM Applications 46
- Transmitter Series for Oil 51
- Moisture in Oil 51
- Prevent it 53
- Transmitter for Oil 54
- 0 ... 2 % 57
- Demanding OEM Applications 59
- GMM111 Carbon Dioxide Module 60
- Demand-controlled Ventilation 62
- GMM20W Carbon Dioxide Module 65
- GML20 and GML20T 66
- Process Measurements 67
- Humidity and 68
- Measurement 68
- Environments 68
- Hazardous Areas 69
- PTU300 Models 70
- Barometric Pressure 70
- Reliable and accurate 72
- HVAC solutions 72
- Take the lab to the field 74
- Standard PTB330TS 75
- PTB210 Digital Barometer 76
- Wind Measurement 81
- Vaisala Service Oering 82
- Vaisala Service Offering 82
- Your Warranty 83
- PRICE LIST 84
- DMT132 Dewpoint Transmitter 85
- Datasheet – front 85
- Vaisala Filters 89
- Vaisala Filters continued 89
- Order Guides 90
- Note: The Universal AC 91
- For high temperatures 92
- For high humidities 93
- For wall mounting 95
- For general use 96
- With Two Standard Chambers 101
- For Pressurized Processes 103
- DMT345 Dewpoint Transmitter 104
- DMT152 Dewpoint Transmitter 105
- DMT242 Dewpoint Transmitte 106
- For pressurized pipelines 108
- GMT221 and GMT222 CO 109
- Transmitters 109
- OMT355 Oxygen Transmitter 110
- 1 Transmitter type 111
- (-40...+140 °F) 112
- (-4...+140 °F) 112
- (+32...+140 °F) 112
- Order Guide 114
- Features/Benefits 115
- Technical data 116
- 3 Cable length 1.0 m 117
- PTB110 Barometer 118
- WXT520 Weather Transmitter 119
- Vaisala Contact Information 121
- ACCURATE 122
- For more information, visit 123
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