Reliable heat-stress assessment starts with the natural wet bulb temperature. This probe family measures the wet bulb value required for WBGT analysis and supports evaluations in the presence or absence of solar radiation when used with the specified globe and dry bulb temperature probes.
The Pt100 sensor covers 4 °C to 80 °C with Class A accuracy and 0.1°C resolution, giving technical teams a clear basis for ISO 7726 and ISO 7243 related measurements. The SICRAM module stores calibration data and enables automatic probe recognition on compatible instruments, reducing setup work during field measurement.
For practical use on site, the family includes versions for different instrument setups: HP3201 with 2 m cable and 110 mm stem, and HP3201.2 without cable and 170 mm stem. Both use a 15 cc tank with 96 hours autonomy at RH=50%, t = 23°C, helping users run WBGT measurements without frequent water refilling.
The probe measures natural ventilation wet bulb temperature as one of the required inputs for WBGT calculation.
The integrated Pt100 sensor measures across 4 °C ... 80 °C with 0.1 °C resolution and Class A accuracy.
The SICRAM module stores sensor calibration data and communicates the probe parameters to compatible instruments.
HP3201 includes a 2 m cable and 110 mm stem. HP3201.2 is the version without cable and has a 170 mm stem.
The 15 cc tank supplies distilled water to the wick and supports 96 hours autonomy at RH=50%, t = 23°C.
| Measuring principle |
RTD
|
|---|---|
| Temperature sensor |
Pt100, Class A
|
| Temperature range |
4...80 °C
|
| Resolution temperature |
0.1 °C
|
| Temperature drift |
0.003 %/°C (@ 20 °C)
|
| Cable |
0 m
|
|---|---|
| Connection |
8-pole female DIN45326, DIN45326
|
| Probe Diameter |
14 mm
|
| Probe length |
170 mm
|
