The instrument is provided with three inputs for probes with SICRAM module: the probes have an electric circuit that communicates with the instrument; the sensor calibration data are saved in its permanent memory. All the SICRAM probes can be inserted in one of the inputs: they are automatically recognized when you switch the instrument on.
The main features of the instrument are:

• Logging: acquisition and memorization of data inside the instrument. Memory capacity: 64 different logging sections, with the possibility to set the acquisition interval of the samples. You can set the duration of the memorization and, with auto-start function; it’s possible to set the starting and finishing date and the hour of data memorization.
• The measurement unit of the temperature visualized sizes: °C, °F, °K.
• The system date and hour.
• The visualization of the maximum, minimum and medium statistic parameters and their cancellation.
• The transfer speed of the data through the serial port RS232.

HD32.2 instrument can contemporarily detect the following sizes:

• Globe thermometer temperature Tg.
• Wet bulb with natural ventilation temperature Tn.
• Ambient temperature T.

On the basis of the detected measurements, HD32.2 can calculate:

•  WBGT(in) index (Wet Bulb Glob Temperature: wet bulb and globe thermometer temperature) in presence or absence of solar irradiation.
•  WBGT(out) index (Wet Bulb Glob Temperature: wet bulb and globe thermometer temperature) in presence of solar irradiation.

These probes are requested for the WBGT measurement:

• Dry bulb temperature probe TP3207.2.
• Globe temperature probe TP3276.2.
• Natural ventilated wet bulb temperature probe HP3201.2.

HD32.2 is the portable version, mostly used in combination with a table stand (small tripod). For measurements during a longer period we suggest the version with a stable tripod HD32.3A.

The post HD32.2 – WBGT Index Measurement appeared first on Senseca.

Once mounted on its tripod VTRAP32.2A.3A , the instrument is suitable for long period measurements. It is provided with three inputs for probes with cables to be fixed on the dedicated holder HD32.2.7.1. The probes are provided with SICRAM module: they have an electric circuit that communicates with the instrument. The sensor calibration data are saved in its permanent memory. All the SICRAM probes can be inserted in one of the inputs: they are automatically recognized when you switch the instrument on.

The main features of the instrument are:

• Logging: acquisition and memorization of data inside the instrument. Memory capacity: 64 different logging sections, with the possibility to set the acquisition interval of the samples. You can set the duration of the memorization and, with auto-start function; it’s possible to set the starting and finishing date and the hour of data memorization.
• The measurement unit of the temperature visualized sizes: °C, °F, °K.
• The system date and hour.
• The visualization of the maximum, minimum and medium statistic parameters and their cancellation.
• The transfer speed of the data through the serial port RS232.

HD32.2A instrument can contemporarily detect the following sizes:

• Globe thermometer temperature Tg.
• Wet bulb with natural ventilation temperature Tn.
• Ambient temperature T.

On the basis of the detected measurements, HD32.2A can calculate:

•  WBGT(in) index (Wet Bulb Glob Temperature: wet bulb and globe thermometer temperature) in presence or absence of solar irradiation.
•  WBGT(out) index (Wet Bulb Glob Temperature: wet bulb and globe thermometer temperature) in presence of solar irradiation.

With the HD32.2A, following probes are requested for the WBGT measurement:

• Dry bulb temperature probe TP3207.
• Globe temperature probe TP3275.
• Wet bulb temperature probe with natural ventilation HP3201 or TP3204S.

A simple portable version is also available. See HD32.2.

The post HD32.2A – WBGT Index Measurement appeared first on Senseca.

The kit is composed of instrument, four AA 1.5 V batteries, instruction manual. The probes and cables have to be ordered separately.

The probes necessary for WBGT measurement are the following:

• Dry bulb temperature probes TP3207.2.
• Globe temperature probe TP3276.2.
• Natural ventilation wet bulb temperature probe HP3201.2.

The probes necessary for PMV and PPD measurement are the following:

• Relative humidity and temperature combined probe HP3217.2.
• Omnidirectional hotwire probe AP3203.2.
• Globe temperature probe TP3276.2.

The post HD32.3 – Data Logger for WBGT, PMW, PPD Measurement appeared first on Senseca.

The kit is composed of instrument, four AA 1.5 V batteries, instruction manual. The probes and cables have to be ordered separately.

The probes necessary for WBGT measurement are the following:

• Dry bulb temperature probes TP3207.
• Globe temperature probe TP3275.
• Natural ventilation wet bulb temperature probe HP3201 or TP3204S.

The probes necessary for PMV and PPD measurement are the following:

• Relative humidity and temperature combined probe HP3217R.
• Omnidirectional hotwire probe AP3203.
• Globe temperature probe TP3275.

The post HD32.3A – Data Logger for WBGT, PMW, PPD Measurement appeared first on Senseca.

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
• T_nw natural ventilation wet bulb temperature
• T_g globe thermometer temperature
• UR relative humidity
• V_a air speed
• CO₂ carbon dioxide
• P_atm 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.

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