Heat Flux Plate HFP01

HFP01 measures heat flux through the object in which it is incorporated or on which it is
mounted, in W/­m2
The sensor in HFP01 is a thermopile. This thermopile measures the temperature difference across the ceramicsplastic composite body of HFP01. A thermopile is a passive sensor; it does not require power. Using HFP01 is easy. It can be connected directly to commonly used data logging systems. The heat flux in W/­m² is calculated by dividing the HFP01 output, a small voltage, by the sensitivity. The sensitivity is provided with HFP01 on its calibration certificate.
A typical measurement location is equipped with 2 or more sensors. HFP01 is the world’s most popular sensor for heat flux measurement in the soil as well as through walls and building envelopes.

Unique features and benefits
• low thermal resistance (essential for use on walls and windows)
• large guard area (required by the ISO 9869 standard)
• low electrical resistance (low pickup of electrical noise)
• high sensitivity (good signal to noise ratio in low-flux environments such as buildings)
• robustness, including a strong cable
• IP protection class: IP67 (essential for outdoor application)