The temperature sensor is located in the CNR 1 body. It will not measure the exact temperature of
the CG 3, unless the whole instrument is in thermal equilibrium. Errors however are minimised in
the design by making solid metal connections between the sensors and the temperature sensor. At
all times the temperature sensor will give a very good approximation of the CG 3 temperature, and
at all times the deviation between the temperatures of the two CG 3's will be small.
Relatively small errors occur when the CNR 1 is not in thermal equilibrium. This happens for
example when the heater is on, or when the sun is shining. When the heater is on, the largest
expected deviation between real sensor temperature and Pt-100 reading is 2 degrees. This results
in a worst case error for the CG 3 of 10 Watts per square meter. When the sun is shining, the
largest expected deviation between real sensor temperature and Pt-100 reading is again 2 degrees.
This results in a worst case error for the CG 3 of 10 Watts per square meter.