User Guide
Landcal Blackbody Source
Type P1600B2
Page 17
6.4 Control Thermocouple
The thermocouple which controls the furnace temperature is situated close to
the furnace heating elements, which will be at a higher temperature than the
target cavity. The difference between controller set point temperature and
target cavity temperature can be as high as 20°C / 40°F at 1500°C / 2700°F.
In these cases, if a target temperature of 1500°C / 2700°F is required, it is
necessary to adjust the controller setpoint to 1520°C / 2740°F.
The temperature indication on the controller must not be used as an accurate
measurement of target cavity temperature.
