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ED-HD32.1 Instrument for Studying and Measuring Heat Stress as Microclimate indexes as PMV, PPD, WBGT

The Thermal Microclimate EM-HD32.1 instrument it allows studying, measuring and controlling the Microclimate in the workplace, in compliance
with the following standards:
ISO 7726: Ergonomics of the thermal environment – Instruments for measuring physical
quantities.
ISO 7730: Moderate Thermal Environments – Determination of the PMV and PPD indices
and specification of the condition for thermal comfort.
ISO 7243: Hot environments. Estimation of the heat stress on working man, based on the
WBGT Index (Wet bulb Globe temperature).
ISO 7933: Ergonomics of the thermal environment – Analytical determination and interpretation
of heat stress using calculation of the predicted heat strain.
ISO 11079: Evaluation of cold environments – Determination of required clothing insulation
(IREQ).
ISO 8996: Ergonomics of the thermal environment – Determination of metabolic rate.
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, CO and CO2.
• Differential pressure with respect to the atmosphere (± 10mbar … ±2bar)

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Product Description

The Thermal Microclimate ED-HD32.1 instrument is manufactured it allows studying, measuring and controlling the Microclimate in the workplace, in compliance
with the following standards:
ISO 7726: Ergonomics of the thermal environment – Instruments for measuring physical
quantities.
ISO 7730: Moderate Thermal Environments – Determination of the PMV and PPD indices
and specification of the condition for thermal comfort.
ISO 7243: Hot environments. Estimation of the heat stress on working man, based on the
WBGT Index (Wet bulb Globe temperature).
ISO 7933: Ergonomics of the thermal environment – Analytical determination and interpretation
of heat stress using calculation of the predicted heat strain.
ISO 11079: Evaluation of cold environments – Determination of required clothing insulation
(IREQ).
ISO 8996: Ergonomics of the thermal environment – Determination of metabolic rate.
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, CO and CO2.
• Differential pressure with respect to the atmosphere (± 10mbar … ±2bar)
According to measurements performed, HD32.1, together with its specific software,
calculates the following parameters:
• tr : Mean radiant temperature
• PMV : Predicted Mean Vote
• PPD : Predicted Percentage Dissatisfied
• DR : Draught Rating
• tO : Operative temperature
• IS : Scharlau Index
• DI : Thom Index
• THI : Thermohygrometric Index
• RSI : Relative Strain Index
• SSI : New Summer Simmer Index
• HI : Heat Index
• H : Humidex Index
• Teq : Equivalent Temperature Index
To compute the calculation of these indexes, temperature and relative humidity of the
air have to be detected and the measured values to be inserted in the table “Discomfort
indexes”.
• 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
• FLD : Average Day Light Factor
The calculation of the FLD index requires light measurement (photometric probe
EM-LP471PHOT). Requires program “HD32.1 prog. C”
Three operating programs are already uploaded on the instrument and they can be used
according to the analysis:
EM-HD32.1 A operating program: Analysis of the Microclimate in moderate, hot and cold
environments.
EM-HD32.1 B operating program: Analysis of Discomfort in moderate environments.
EM-HD32.1 C operating program: Measurement of Physical Quantities for general purposes.
The EM-HD32.1 together with C operating program turns into a multifunction datalogger
instrument displaying maximum, minimum and average values. By connecting the probes, the instrument allows measuring temperature, temperature and relative humidity,
air velocity, flow, light (with photometric/radiometric probes), differential pressure
with respect to the atmosphere, CO and CO2.
TECHNICAL SPECIFICATIONS INSTRUMENT
Dimensions (Length x Width x Height) 220x180x50 mm
Weight 1100 g (with batteries)

Download

Manuals and Brochures here.  

HD32_1.pdf

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