WBGT measurement with natural wet bulb temperature probe

Related instruments Temperature & humidity, Thermal comfort

An earlier post showed WBGT measurement with a combined temperature and humidity probe. With this configuration, the natural wet bulb temperature is calculated.

Shown below is a configuration of the same HD32.3TC instrument with a wet bulb temperature probe. In this case, the wet bulb temperature is directly measured, in compliance to ISO 7243.

HD32.3TC can be configured in various ways for thermal comfort, indoor air quality and microclimate analysis. Please refer to the data sheet of HD32.3TC for more details.

50 mm globe thermometer for thermal comfort applications

Related instruments Temperature & humidity, Thermal comfort

Shown above is a 50 mm diameter globe thermometer, with Class A 4-wire PT100 sensor. The model is Delta Ohm TP876.1.I. An alternative model with 150 mm diameter (TP875.1.I) is also available. Refer to the instrument datasheet for more information.

For the working principle of globe thermometers, please refer to this article.

Thermal comfort data logger for PMV/PPD/WBGT/turbulence measurement

Related instruments Temperature & humidity, Air speed & wind, Thermal comfort

Shown below are two sets of Delta Ohm HD32.3TC thermal comfort data loggers, with the following features:

  • For PMV/PPD/WBGT/turbulence measurement (ISO 7726, 7730 and 7243)
  • 4 quantities measured: air temperature, humidity, speed and globe temperature
  • Portable
  • With large touch screen
  • With built-in Li-ion battery (chargeable via USB)
  • With voice recording and camera function
  • With wi-fi connection for FTP upload

Visit our thermal comfort instrument page for more products.

With the 3 probes connected (globe thermometer probe, combined temperature & humidity probe, and air speed probe), it is possible to display either PMV/PPD results or WBGT (both indoor and outdoor) results, as shown below:

PMV/PPD result page
WBGT result page