Specifications

Calibration 5-3
2. Place a calibrated temperature meter, with a resolution of 0.1°C, in
close proximity to the CJC sensor of the NuDAM module.
3. Send command “Read CJC Status $(Addr)3” to read temperature
of CJC, then compare the temperature returned from the CJC
sensor with the calibrated temperature
4. If the difference is less than ±0.1°C, the CJC offset is correctly
calibrated, if it is greater or less, proceed to step 5
5. Send “CJC Offset Calibration $(Addr)9(+0000)” to set initial CJC
offset value to zero.
6. Repeat step 3, then proceed to step 7.
7. Send “CJC Offset Calibration $(Addr)9(Counts)” to correct the
CJC offset error.(counts is a 4-characters with a sign + or -,range
is 0000 to FFFF, each count equals approximately 0.0153 °C). (For
more detail, please refer the CJC Offset Calibration Command).
8. Repeat procedure 4 to procedure 7 if the CJC value still does not
conform to the ambient temperature.