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.
|Temperature range||20°C to 45°C|
|Target size||70 mm diameter|
|Emissivity||0.97 at ±0.02|
|Heating time||35 min|
|Size||230 x 225 x 115 mm|
|Power supply||12 V