HMD82 Humidity, Dew point, Wet bulb, Enthalpy and Temperature Sensor for HVAC, Duct Model, Current Loop, 3% accuracy - Vaisala Online Store

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HMD82 Humidity, Dew point, Wet bulb, Enthalpy and Temperature Sensor for HVAC, Duct Model, Current Loop, 3% accuracy

The 2-wire HMD82 transmitter measures relative humidity and temperature in ventilation ducts. Optional outputs dew point, wet bulb temperature and enthalpy can be easily selected by a single dip switch or can be ordered preconfigured. The transmitter combines easy installation and reliable operation with low requirement for maintenance

The HMD82 transmitter is optimized for easy installation. It contains no separate small parts that can get lost. All connectors are clearly labeled and the connectors are within easy reach. The transmitter is well suited to variable duct sizes.

The excellent stability of the sensors and high quality materials ensure that the HMD82 transmitter requires minimal maintenance. If needed, the Vaisala INTERCAP® sensor can be easily exchanged in the field with practically no downtime.

You can choose an optional display.

Analog outputs are preset at the factory to:

  • Channel 1: 4 ... 20 mA = 0 ... 100% RH
  • Channel 2: 4 ... 20 mA = -40 ... +60 °C (-40 ... +140 °F) T

The package includes:

  • HMD82 transmitter
  • Installation instructions on the inside cover of the box

HMD82 Humidity, Dew point, Wet bulb, Enthalpy and Temperature Sensor for HVAC, Duct Model, Current Loop, 3% accuracy
HMD82 Duct-Mount Humidity and Temperature Transmitter for Building automation Applications, Loop-Powered
Standard delivery time for single unit: 1 week
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Warranty: 24 months
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Detailed information

Measurement parameter(s)Relative humidity
Temperature
Dew point temperature*
Enthalpy*
Wet bulb temperature*
Measurement range0 ... 100 % RH
-40 ... +60 °C (-40 ... +140 °F) T
-40 ... +60°C (-40 ... +140 °F) Dew Point / Wet Bulb
-40 ... +460 kJ/kg (-10 ... +190 BTU/lb) Enthalpy
Measurement accuracy±3.0 % RH (0 ... 90 % RH)
±5.0 % RH (90 ... 100 % RH)
Operating temperature-40 ... +60 °C (-40 ... +140 °F) without display
-5 ... +60 °C (-23 ... +140 °F) with display
Operating voltage20 ... 28VDC at 600 Ohm load
10 ... 28VDC at 0 Ohm load
Analog outputs4 ... 20 mA
Housing classificationIP65
Links See full specifications on Vaisala.com
Download user guides and other product documents on Vaisala.com


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