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CCBU40 COMPACT CONTROLLER BOARD - PRODUCT AND WARRANTY INFORMATION Version 1.21
can then be read as a voltage on the “T°C” analog output of the supervisor connector. The CCBu40 integrates
a conditioner that provides a constant 1.613mA current to the PT1000 probe. Based on the voltage
measurement on the “T°C” output, the temperature in °C is computed as follows:
Temperature [°C] = (“T°C” output [V] – 1.613) x 161
Notes:
• When monitoring the sensor signals on the SX and SY outputs, it is recommended to use an
low pass filter to remove switching noise that can appear on those lines; This is also
recommended for temperature reading (if used) on the T°C.
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