- Variable temperature 30°C to 550°C
- Extremely high emissivity > 0.995
- 65 mm diameter cavity
- The BB976 Portable Blackbody Calibration Source allows for calibration of non-contact infrared thermometers over the temperature range 30°C to 550°C. It is suitable for use as a primary radiation source for infrared thermometers.
- Laboratory performance and low uncertainty calibrations are ensured by the combination of high emissivity and excellent temperature uniformity.
- The digital temperature controller allows the block temperature to be set to any value from 30°C to 550°C.
- A separate, built-in temperature indicator and included platinum resistance thermometer provide traceability of the true radiance temperature.
- A three point traceable calibration certificate is included. UKAS calibration of the resistance thermometer is available, as is radiometric calibration.
- Uniformity of the block is ensured by using distributed heating technology. For the smallest of uncertainties, the BB976 may be used with optional ITS-90 Fixed Point Cells, Gallium 29.7646°C, Indium 156.5985°C, Tin 231.928°C and Zinc 419.527°C. The cells are provided with a certificate of metal purity.