Water-cooled heat flux sensor SBG01

calibration

SBG01 is a water-cooled sensor that measures heat flux. Since its introduction in 2008, SBG01 has rapidly become the sensor of choice for fire testing. The most common applications are to test reaction to fire and fire resistance. The sensor also serves as a calibration reference standard for test equipment, including flammability and smoke chamber tests. SBG01 complies with the requirements of most common ASTM and ISO standard test methods. The sensor of choice for fire testing SBG01 is the preferred choice for fire testing, capable of measuring heat fluxes from (5 to 200) x 10³ W/m². Equipped with a black absorber and water-cooled, the sensor is designed to measure heat flux from strong radiative sources. Using an open detector, SBG01 is also sensitive to convective heat flux—a contribution that is often overlooked. Application in environments with lower than 20 x 10³ W/m² irradiance levels, or with significant heat transfer by convection, is possible but requires a careful evaluation of the measurement uncertainty. SBG01’s thermopile sensor generates an output voltage proportional to the incoming heat flux. The sensor is cooled, usually via tap water, which keeps the sensor body relatively cool despite temperatures of the surrounding air and the radiant source reaching 1000 °C and higher. SBG01 is available in 6 models, each with a different rated measurement range and with a different calibration reference irradiance level. There are several optional body designs, with the standard body equipped with a smooth cylindrical body and flange (model SBG01). Another common option is a smooth cylinder body without a flange (model SBG03).