User manual VAISALA HMW40-50 DATASHEET

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Manual abstract: user guide VAISALA HMW40-50DATASHEET

Detailed instructions for use are in the User's Guide.

 [. . . ] Box 26,  FI-00421 Helsinki,  FINLAND Tel: +358 9 894 91 Fax: +358 9 8949 2485 Email: industrialsales@vaisala. com www. vaisala. com/HMDW4050

HMW40/50 and HMD40/50 Wall and Duct Mount Transmitters for HVAC Applications
Features/Benefits

· · · · · · · · · ·
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. 

Specially designed for building energy management systems 10 . . . +140 °F) operating range for duct units -5 . . .  [. . . ] This means great savings in overall maintenance costs. The sensor is also insensitive to dust as well as most chemicals. 

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. 

In energy management systems,  the accurate measurement of relative humidity and temperature is essential for optimum control of the environment. 

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Vaisala Instruments Catalog 2009
Ref. A

HMD/W40/50

HUMIDITY

Technical Data

Relative humidity
Measurement range ( for which accuracy is specified) Operating range HMD40/50 HMW40/50 Accuracy at +20 °C (+68 °F) Stability Temperature dependence Sensor 10 . . . 90 %RH better than ±3 %RH ±2 %RH over 2 years <±1. 5 %RH from -10 . . . 140 °F) INTERCAP® Sensor,  part no. 15778HM

Sensor protection standard membrane filter,  part no. DRW010522 Housing material ABS plastic Housing classification (HMD40/50) IP65 (NEMA 4) Electromagnetic compatibility Complies with EMC standard EN61326-1,  Generic Environment

Wiring
HMD40/50 wiring diagram HMW40/50 wiring diagram

Temperature (40Y and 50Y)
Measurement range HMD40/50 HMW40/50 Total accuracy at +25 °C Temperature dependence Sensor -10 . . . +131 °F) ±0. 3 °C (±0. 54 °F) 0. 01 °C/°C (0. 01 °F/°F) Pt 1000 IEC 751 class B

General
Output signal for relative humidity (equals 0. . . 100 %RH) HMD/W40 4 . . . 10 V Output signal for temperature HMD/W40 4 . . . 140 °F) HMW40Y,  HMW50Y equals -5 . . . 131 °F) Load resistance >20 kohm Power supply HMD/W40 10 . . .  [. . . ] HMW40/50

HMD40/50

INTERCAP® is a registered trademark of Vaisala Specifications subject to change without prior notice. © Vaisala Oyj Vaisala Instruments Catalog 2009
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