Vaisala HMDW80 Series [HMD83D] Duct-Mount Humidity and Temperature Transmitter

HMD83 Humidity, Dew point, Wet bulb, Enthalpy and Temperature Sensor for HVAC, Duct Model, Voltage Outputs, 3% accuracy.
The 3-wire HMD83 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. The transmitter combines easy installation and reliable operation with low requirement for maintenance.

The HMD83 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 HMD83 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: 0 ... 10 V = 0 ... 100% RH
  
• Channel 2: 0 ... 10 V = -40 ... +60 °C (-40 ... +140 °F) T