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HD32.3TC – HD32.3TCA – Thermal Microclimate PMV-PPD / WBGT
Brand: Delta OHM S.R.L.
Thermal microclimate for the measurement of
- WBGT,
- PMV (mean predicted vote),
- PPD (predicted percentage of dissatisfied),
- DR (draught rate),
- TU (local turbulence intensity),
- HI (heat index),
- UTCI (Universal Thermal Climate Index),
- TEP (perceived equivalent temperature) indices,
- CO2,
- PM1.0, PM2.5 and PM10.
- Estimation of SARS-CoV-2 decay time on surfaces.
HD32.3TC is the portable version, mostly used in combination with a table stand (small tripod).
HD32.3TCA is the version that is being used with a stable tripod, suitable to be used for measurements during a longer period.
Technically the difference is simple: with the HD32.3TCA the sensors are being connected by a cable and a black globe of 150mm is used.
With the HD32.3TC the black globe is 50mm and the sensors are being connected directly on top of the instrument.
Both are fully according to the applicable ISO7730, ISO7726 and ISO7243 regulations.
- T dry bulb temperature
- Tnw natural ventilation wet bulb temperature
- Tg globe thermometer temperature
- UR relative humidity
- Va air speed
- CO2 carbon dioxide
- Patm atmospheric pressure
- PM1.0, PM2.5, PM10 particulate matter
A bright and clear touch display allows the calculated values for WBGT, PMV/PPD and TU to be directly visible.
The data are immediately available via “cloud” application accessible remotely via Wi-Fi connection.
The data logger has a large memory capacity for long lasting measurement cycles.
Moreover, the rechargeable battery guarantees a working autonomy of at least 24 hours.
Reference standard:
- ISO 7726 – Ergonomics of the thermal environment – Instruments for measuring physical quantities.
- ISO 7730 – Ergonomics of the thermal environment – Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria.
- ISO 7243 – Ergonomics of the thermal environment – Assessment of heat stress using the WBGT (wet bulb globe temperature) index.
- ASHRAE Standard 55 – Thermal Environmental Conditions for Human Occupancy.
- ASHRAE Standard 62.1-2019 – Ventilation for Acceptable Indoor Air Quality.
- ASHRAE Standard 62.1-2019 – Ventilation for Acceptable Indoor Air Quality.
The HD32.3TC and HD32.3TCA have additional possibilities compared to the HD32.3 and HD32.3A instruments – sale, repair and maintenance for the old series will of course stay available.
Features- Bright And Clear Touch Display
- High Memory Capacity
- Data Immediately Available
- Portable And Independent
- Fully Compliant With ISO Regulations ISO 7730 - ISO 7726 - ISO 7243
Specifications
Brand
Reference Rules
- ISO 7726
- Measurement of turbolence - ISO 7730
- Measurement of PMV/PPD - ISO 7730
- Measurement of WBGT - ISO 7243
Export Formats
- CSV - PDF
Display
- LCD 480x800 pixels
- Capacitive touch screen
Connectivity
- USB Host and Device
- RS-485 powered
- Wi-Fi
Storage Capacity
- 8 GB
Logging Interval
- From 1 second to 1 hour
Power Supply
- Li-lon battery
- rechargeable via USB
Autonomy
- 24 hours on Max. consumption
Working Temperature and RH
- -5…50° C
- 0…90 % RH No condensation
Protection Degree
- IP54
Instrument Uncertainty
- ± 1-Digit @ 20° C
Dimensions and Weight
- 185 x 90 x 40 mm - 500 g
Inputs
- 3 inputs for probes with SICRAM module
- 1 Input RS-485 with M12 8-Pole Connector for PMsense-P
- Measurement of PMV, PPD global comfort indices and of DR local discomfort index in moderate environment
- Measurement of WBGT index in severe hot environment
- Measurement of comfort conditions and indoor air quality, for example in schools, oces, factories, etc
- Sick building syndrome analysis
- Verification of the efficiency of Heating, Ventilation and Air Conditioning (HVAC) systems
- Building Automation