- Temperature difference sensors: tested for 0.1 °C accuracy requirements
- Superior heat flux sensor, stable: waterproof (IP67), corrosion-proof
- Continues measuring when others give up: high sensitivity amplifier + high sensitivity sensors
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TRSYS01 is a high-accuracy system for on-site measurement of thermal resistance, R, thermal conductance, the Λ-value, and thermal transmittance, the U-value, of building envelopes. TRSYS01 is mostly used for measurements according to standard practices of ISO 9869 and ASTM C1155 / C1046. The system is equipped with high-accuracy electronics, two heat flux sensors of model HFP01 as well as two pairs of matched thermocouples. The two measurement locations provide redundancy, leading to a high level of confidence in the measurement result. The high accuracy of the heat flux sensors and temperature difference measurements ensures that TRSYS01 continues measuring when other systems no longer perform; in particular at very low temperature differences across the wall. -
SR05 is a solar radiation sensor that is applied in most common solar radiation observations. Model version SR05-A1 complies with the spectrally flat Class C specifications of the ISO 9060 standard, and offers analogue millivolt output. LI19 is a high accuracy handheld read-out unit / datalogger. The SR05-LI19 combination is well suited for mobile measurements and short term datalogging. LI19 displays the measured radiation and stores measured data. Once programmed with the sensitivity of SR05, the display will show the actual value of the solar radiation in W/m².- The system is supplied in a practical transport case, for easy transport and protection during field measurement campaigns LI19 may also be used with other pyranometers and heat flux sensors
- Operation of SR05-LI19 is easy
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HFP03 is an ultra sensitive sensor for measurement of small heat fluxes in the soil as well as through walls and building envelopes. The total thermal resistance is kept small by using a ceramics-plastic composite body. See also model HFP01: putting several HFP01 sensors electrically in series is an alternative for using HFP03.
- HFP03 is specifically suitable for measurement of small flux levels
- The total thermal resistance is kept small by using a ceramics-plastic composite body
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HFP01SC self-calibrating heat flux sensor™ is a heat flux sensor for use in the soil. It offers the best available accuracy and quality assurance of the measurement. The on-line self-test verifies the stable performance and good thermal contact of sensors that are buried and cannot be visually inspected and taken to the laboratory for recalibration. The self-test also includes self-calibration which compensates for measurement errors caused by the thermal conductivity of the surrounding soil (which varies with soil moisture content), for sensor non-stability and for temperature dependence.
- Low thermal resistance
- 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)
- Robustness, including a strong cable (essential for permanently installed sensors)
- IP protection class: IP67 (essential for outdoor application)
- Incorporated film heater for self-testing
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HFP01 is the world’s most popular sensor for heat flux measurement in the soil as well as through walls and building envelopes. The total thermal resistance is kept small by using a ceramics-plastic composite body. The sensor is very robust and stable. It is suitable for long term use on one location as well as repeated installation when a measuring system is used at multiple locations. If measuring in soil, in case a more accurate measurement is needed the model HFP01SC should be considered.
- 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)
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FHF05 is the product range to start looking if you consider measuring heat flux. Models are available in five different dimensions and sensitivities. All FHF05’s are flexible, have an integrated temperature sensor and have thermal spreaders to reduce thermal conductivity dependence. Rated temperature range is from –70 to +120 °C. FHF05 measures heat flux from conduction, radiation and convection. Optionally, black BLK and gold GLD stickers are available for all five models to separately determine heat transport by radiation and convection. In case the FHF05 series does not match your needs, have a look at other heat flux sensor models for special applications.- flexible (bending radius ≥ 7.5 x 10-3 m)
- low thermal resistance
- wide temperature range
- fast response time
- large guard area
- integrated type T thermocouple
- robustness, including connection block, for strain relief
- IP protection class: IP67 (essential for outdoor application)
- integrated thermal spreaders for low thermal conductivity dependence
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A next-level sensor from the world market leader in heat flux measurement, FHF04SC is a combination of our standard model FHF04 heat flux sensor and a heater. The heater allows the user to perform self-tests, verifying sensor functionality and stability during use, without having to remove the sensor. FHF04SC is ideal for high-accuracy and long-term heat flux measurement, construction of calorimeters, (zero heat flux) core temperature measurement and thermal conductivity test equipment.- Flexible (bending radius ≥ 15 x 10⁻³ m)
- Low thermal resistance
- Wide temperature range
- Fast response time
- Integrated type T thermocouple
- Robustness, including metal connection block, may be used as strain relief
- IP protection class: IP67 (essential for outdoor application)
- Integrated thermal spreaders for low thermal conductivity dependence
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FHF04 is the latest standard model for general-purpose heat flux measurement. Significantly thinner and more flexible, FHF04 replaces earlier models FHF01 and FHF02. FHF04 is very versatile: it has an integrated temperature sensor and thermal spreaders to reduce thermal conductivity dependence. It is applicable over a temperature range from –70 to +120 °C. FHF04 measures heat flux from conduction, radiation and convection. Optionally, black BLK and gold GLD stickers are available to separately determine heat transport by radiation and convection.- flexible (bending radius ≥ 7.5 x 10⁻³ m)
- low thermal resistance
- wide temperature range
- fast response time
- large guard area
- integrated type T thermocouple
- robustness, including wiring with strain relief block
- IP protection class: IP67 (essential for outdoor application)
- integrated thermal spreaders for low thermal conductivity dependence
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Want to study energy transport / heat flux in detail? Hukseflux helps taking your measurement to the next level: provide your heat flux sensors with radiation-absorbing black and radiation-reflecting gold stickers. You can then measure convective + radiative flux with one, and convective flux only with the other. Subtract the two measurements and you have radiative flux. GLD and BLK stickers are available for sensor models FHF04, FHF04SC, FHF03 and HFP01. They are designed to be applied by the user to the sensor; see the user manual and installation video for instructions.- Makes it possible to perform convective and radiative heat flux measurements
- Available as accessory for FHF04, FHF04SC, FHF03 and HFP01 heat flux sensors
- Designed to be applied by the user