User manual VAISALA DMW19 DATASHEET

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Manual abstract: user guide VAISALA DMW19DATASHEET

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

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

DMW19 Wall Mount Dewpoint Transmitter for Indoor Applications
Features/Benefits

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Designed for demanding building automation applications and other wall mount indoor applications where dewpoint measurement is needed Dewpoint measurement range -20. . . +55 °C Td (-4. . . +131 °F Td) Accuracy ±2 °C Td Vaisala HUMICAP® Sensor for excellent accuracy and long-term stability,  negligible hysteresis and resistance to dust and most chemicals.  [. . . ] Customized calibration and maintenance contracts for the DMW19 are available on request. 
The Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM70 is an easy and fast way to confirm the performance of DMW19 on site. 

Proven Vaisala HUMICAP® Sensor Technology
The operation of DMW19 is based on Vaisala HUMICAP® Sensor. The dewpoint is calculated from relative humidity and temperature. The patented Vaisala HUMICAP® Sensor is insensitive to dust,  particulate dirt and most chemicals. This results in high accuracy,  excellent long-term stability and negligible hysteresis. 

DMW19 is suitable for demanding building automation and other wall mount indoor dewpoint measurements. 

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Vaisala Product Catalog 2005
Ref. A

DMW19

DEWPOINT

Technical Data

Dewpoint temperature
Measurement range Accuracy -20. . . +55 °C (-4. . . +131 °F) ±2 °C (±3. 6 °F) (See the graph below)

Wiring

Response time Humidity sensor Temperature sensor

15 s Vaisala HUMICAP® 180 Pt 100 IEC 751 1/3 class B -5. . . +60 °C (+23. . . +140 °F) -40. . . +80 °C (-40. . . +176 °F) 0. . . 95 %RH operating and storage 4. . . 20 mA 0. . . 1 V 0. . . 5 V 0. 002 mA 0. 3 mV 0. 005% of span/°C 12. . . 35 VDC 11. . . 28 VAC

Operating environment
Operating temperature Storage temperature Relative humidity

Outputs
Analog output (scalable)

Dimensions
Dimensions in mm. 

Resolution for current output Resolution for voltage output Typical temperature dependence

General
Operation voltage with voltage output Operation voltage with current output 20. . . 35 VDC / 19. . . 28 VAC with RL500 ohm 17. . . 35 VDC / 16. . . 28 VAC with RL50 ohm Supply current 10 mA + load current Load for voltage output min. 500 ohm Connections screw terminals 0. 5. . . 1. 5. mm2 Housing Housing classification Weight ABS plastics IP33 110 g HM70 hand-held humidity and temperature meter 211917ZZ

Options and Accessories
For field check Connection cable for HM70

Electromagnetic compatibility
Complies with EMC standard EN61326-1:1997 + Am1:1998 + Am2:2001; Generic Environment. 

HUMICAP® is a registered trademark of Vaisala.  [. . . ] © Vaisala Oyj

Vaisala Product Catalog 2005
Ref.  [. . . ]

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