Phone: 253-927-6186

HD32.1 Thermal Microclimate Data Logger, controller.
HD32.1 Thermal Microclimate Data Logger, controller allows studying, measuring and controlling the Microclimate in the workplace, in compliance with the following standards:
UNI EN ISO 7726: Ergonomics of the thermal environment - Instruments for measuring physical quantities. UNI EN ISO 7730: Moderate Thermal Environments - Determination of the PMV and PPD indices and specification of the condition for thermal comfort.
UNI EN ISO 27243: Hot environments. Estimation of the heat stress on working man, based on the
WBGT Index (Wet bulb Globe temperature).
UNI EN ISO 7933: Ergonomics of the thermal environment - Analytical determination and interpretation of heat stress using calculation of the predicted heat strain.
UNI ENV ISO 11079: Evaluation of cold environments - Determination of required clothing insulation (IREQ).
UNI EN ISO 8996: Ergonomics of the thermal environment - Determination of metabolic rate.

Microclimate Data Logger, controller.

Model  Description 
HD32.1  HD32.1 Thermal Microclimate Data Logger, controller.

Three operating programs are uploaded on the instrument and they can be used according to the analysis:
HD32.1 A operating program: Analysis of the Microclimate in moderate, hot and cold environments.
HD32.1 B operating program: Analysis of Discomfort in moderate environments.
HD32.1 C operating program: Measurement of Physical Quantities for general purposes.

The HD32.1 together with C operating program turns into a multifunction datalogger instrument displaying
maximum, minimum and average values.
By connecting SICRAM probes, the instrument allows measuring temperature, temperature and relative
humidity, air velocity, flow, light (with photometric/radiometric probes).

Thanks to specific software: Moderate Environments, Hot environments, Cold environments and Discomfort, as well as specific probes, the instrument can perform the following measurements:
• Globe temperature
• Natural wet bulb temperature
• Ambient temperature
• Atmospheric pressure
• Relative Humidity
• Air velocity
• Air temperature at the height of the head (1,7m subject standing; 1,1m subject sitting).
• Air temperature at the height of the abdomen (1,1 m subject standing; 0,6m subject sitting).
• Air temperature at the height of the ankles (0,1 m).
• Temperature at the floor level.
• Net radiation temperature.
• Net radiation.
• Radiant temperature asymmetry.
• Illuminance, luminance, PAR, irradiance.

According to measurements performed, HD32.1, together with its software, calculates the following parameters:
• tr : Mean radiant temperature
• PMV : Predicted Mean Vote
• PPD : Predicted Percentage Dissatisfied
• DR : Draught Rating
• tO : Operative temperature
• teq : Equivalent temperature
• WBGTIndoor : Wet bulb Globe temperature
• WBGTOutdoor : Wet bulb Globe temperature in the presence of radiation
• SWp : Sweat rate
• Ep : Predicted evaporative heat flow
• PHS : Tre - Water loss - Dlim tre - Dlimloss50 - Dlimloss95
• IREQ : Required clothing insulation
• DLE : Duration Limit Exposure
• RT : Recovery time
• WCI : Wind chill index
• PDv : Percentage Dissatisfied due to vertical temperature difference (head-ankles)
• PDf : Percentage Dissatisfied due to floor temperature
• PDΔ : Percentage Dissatisfied due to radiant asymmetry

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Hotek Technologies, Inc
tel: 253-927-6186