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HMT330MIK Meteorological Installation Kit
 
HMT330MIK Meteorological Installation Kit
    Quantity in Basket: None
    Code: VIHMT330MIK
    Price: $1,640.00
    Shipping Weight: 12.00 pounds
     
     
    Support Bar & Shield for warmed Td probe:
    Support Bar & Shield for additional T probe or for non-warmed RH or Td probe:
    Support Bar mounting plate:
    Additional transmitter mounting plate:
    Static Pressure Head:
    Quantity:
     
    Vaisala HMT330MIK Meteorological Installation Kit
    Vaisala Instruments

    HMT330MIK Meteorological Installation Kit

    The Meteorological Installation Kit enables HMT337 and PTU307 to be installed outdoors to obtain reliable measurements for meteorological purposes. True humidity readings in condensing conditions In weather observations dew formation makes reliable humidity measurement difficult. When dew has formed on the humidity sensor, it is impossible to obtain a true reading until this dew evaporates. Both the PTU307 and HMT337 avoid this problem by warming the probe. When warmed, the relative humidity inside the probe stays below the ambient level. With an accurate temperature measurement, the ambient dewpoint can be calculated precisely. To obtain the ambient relative humidity, an additional probemeasures the ambient temperature, and the transmitter calculates the relative humidity from the dewpoint and temperature values.

    • For outdoor pressure, humidity and temperature measurements
    • Can be ordered in a variety of configurations
    • Used together with the HMT337 transmitter and PTU307 transmitter
    • Vaisala SPH 10/20 Static Pressure Head eliminates effectively pressure variations in the barometer caused by wind

    PDF File Brochure and Order Form

    HMT330MIK Dimensions
    HMT337 / PTU307 Features
    • Warmed probe provides true humidity readings in condensing conditions
    • Humidity measurement expressed as relative humidity and/or dewpoint temperature
    • Easy field calibration with the HM70 hand-held meter

    Open shield prevents microclimates
    The warmed humidity probe of the HMT337 / PTU307 is mounted in a shield which is open at the bottom to ensure steady air circulation to the sensor even in calm weather. In traditional radiation shields sleet or snow can accumulate on the shield and prevent the proper air circulation through the shield, and create a humid microclimate until the snow melts.

    Essential for critical weather measurements
    Obtaining a true humidity reading is particularly important e.g. in traffic safety: at airports and at sea as well as on the roads. It is essential, for example, in fog and frost prediction.

    HMT330MIK Graph
    After a period of 100 % relative humidity, the
    warmed probe measures the true humidity,
    whereas the non-warmed probe takes time
    to recover from the condensation.



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