The 988 is a low cost Blackbody source introduced to meet customer requirements for a simple, cost effective but high accuracy calibrator for the calibration of thermal imagers and infrared thermometers used at temperatures around ambient.
A 70 mm diameter ridged plate is heated or cooled with an internal solid state thermoelectric heat pump. The temperature of the plate can be set from 20°C to 45°C with a resolution of 0.01°C.
Evaluation showed the advantages of fitting a stainless steel tube around the plate to give better uniformity and less sensitivity to draughts and ambient temperature effects.
Key features:Ambient temperature spherical Blackbody source: 20°C to 45°CEmissivity: 0.97 at ±0.02Controller resolution: 0.01°CTemperature range20°C to 45°CTarget size70 mm diameterStability±0.2°CAccuracy±0.2°CEmissivity0.97 at ±0.02Heating time35 minGeneral specificationsSize230 x 225 x 115 mmWeight4 kgDisplayResolution: 0.01°CPower supply12 V
60 Watts