

A heat flux sensor is a thermopile, an electronic device that translates thermal energy into an electrical voltage proportional to the temperature gradient across its thermocouples’ hot and cold junctions.
EKO Instruments offers a selection of thin substrate heat-flux sensors in a range of different sizes and thicknesses, an ideal option for research and engineering applications as well as manufacturing control and monitoring processes.
The HF-30S is a thin foil extra-large heat-flow sensor covering 30 x 30 cm². Its size ensures properly averaged thermal conductivity results on adequate, flat surfaces without the potential risk of local hot spot effects or thermal bridges.
Key Features:
| Response time 95% | 28 Sec |
|---|---|
| Sensitivity (Approx.) | 100 µV/W/m² |
| Thermal resistance | 0.0016 °C/(W/m2) |
| Electric Resistance (Room Temp.) | 400 to 800 Ω |
| Operating temperature range | -20 to 120 °C |
| Cable length | 10m ( 20m / 30m ) |
| Dimensions mm | 300 (L) x 300 (W) x 0.5 (H) |
| Weight (without cable) | 0.1 kg |
| Substrate | Glass epoxy |
| Cladding | Epoxy |
| Ingress protection | – |