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HMD60/70 Humidity and Temperature Transmitters for Ducts in HVAC Applications

Vaisala HUMICAP® Humidity and Temperature Transmitters HMD60/70
Vaisala HUMICAP 40 Years!

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    Overview

     Overview

      The duct mounted Vaisala HUMICAP® Humidity and Temperature Transmitters  HMD60 and HMD70 are designed for monitoring relative humidity and temperature in building energy management systems.
      The combination of high accuracy, stability and reliable operation, make these products the ideal choice for demanding applications.

      HMD60/70 series includes the following products:
      • HMD60Y RH+T transmitter, current output
      • HMD60U RH transmitter, current output
      • HMD60T T transmitter, current output
      • HMD70Y RH+T transmitter, voltage output
      • HMD70U RH transmitter, voltage output
      • HMD70T T transmitter, voltage output
      Technical Specifications

       Technical Specifications

      60 series: 2-wire, 4 to 20 mA output

       

      Duct mount

      RH only         HMD60U
      RH and T       HMD60Y

       

      70 series: 3-wire, variable voltage output

       

      Duct mount

      RH only         HMD70U
      RH and T       HMD70Y

       

      Relative humidity measurement


      ​Accuracy at +20°C




      ​HMD60/70 ​±2%RH (0...90%)
      ±(2% + 1% of reading)  (90...100%RH)

      ​Measurement range

      ​    Sensor ​Vaisala HUMICAP® 180

      ​     


      Temperature measurement (Y models only)


      ​HMD60Y and HMD70Y

      ​    Measurement range ​-20 ... +80 °C (-4 ... +176 °F)

      ​     Accuracy at +20°C ​+/- 0.2°C

      ​Sensor
      ​Pt1000 RTD Class F0.3 IEC 60751









      Operating environment


      ​Operating temperature

      ​    electronics ​-5 ... +55 °C (+23 ... +131 °F)

      ​     sensor head (duct mount) ​-20 ... +80 °C (-4 ... +176 °F)

      ​Storage temperature ​-40 ... +80 °C (-40 ... +176 °F)

      Inputs and outputs


      ​Operating voltage

      ​     60 series ​10 ... 35 VDC (RL=0 ohm)

      ​     70 series ​20 ... 35 VDC (RL=500 ohm)

      ​            0 ... 1 V ​10 ... 35 VDC/ 9 ... 24 VAC

      ​            0 ... 5 V ​14 ... 35 VDC/12 ... 24 VAC

      ​            0 ... 10 V ​19 ... 35 VDC/ 16 ... 24 VAC

      ​Power consumption at 24 VAC

      ​     HMD70U ​10 mA (typical)

      ​      HMD70Y ​12 mA (typical)

      Mechanics

       

      Housing
           sensor head (duct mount)
           electronics (duct mount)
          


      stainless steel
      cast aluminum

       

      For complete specifications, please see the brochure or user guide in "Documents".

      Related Services
      • On-Site Calibration 
      • On-site calibration helps you maximize both reliability and profitability by minimizing costly equipment downtime and ensuring compliance with relevant regulations and standards. Our expert engineers can also replace a range of components, carry out minor repairs, and provide the latest upgrades.
      • Warranty 
      • All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment. With Vaisala’s extended warranty, you get free repair or replacement for five years.
      • Repair Services 
      • Vaisala repair services include fault tracing and repair or replacement of failed components, as well as final testing to ensure your equipment is functioning properly. Repairs can be carried out on site or at one of our service centers.
      • Service Center Calibration 
      • Regular calibration ensures that your Vaisala equipment continues to provide accurate, high-quality data. We offer traceable, standards-compliant calibration services for almost all Vaisala products and partner with world-class couriers for rapid, trouble-free return of your equipment.
      • Spare Parts 
      • Get rapid access to the spare parts you need to maximize the uptime of your equipment and ensure reliable and accurate operation. In addition to standard spare part delivery, we also offer an express service where parts are shipped within one business day.
      Documents