HTabsOverviewPart number: 7.1417.10.000 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) Heat Flux Plate HFP01 - 7.1417.10.000.pdf SpecificationMeasurement Parameter: Heat FluxSpecification: Part number: 7.1417.10.000 Heat flux Measuring range -2000 ... 2000 W/m² Sensitivity 60 µV/W/m² Typ. signal output -120 ... +120 mV Sensor type Thermocouples Impedance 1 ... 4 ê Accuracy ±3 % Time response 4 min Temperature coefficient 0.1 %/K General Ambient temp. -30 ... +70 °C Electr. connection 5 m cable Protection IP 67 Dimension Ø 80 x 5.4 mm Weight 0.2 kg Further InfoDocuments: Heat Flux Plate HFP01 - 7.1417.10.000.pdf