How do we connect the CNR4 to the LOGBOX SD?

Please connect the instruments (2x Pyranometer and 2x Pyrgeometer) as “single ended”, 24Bit Bipolar at a range of 78mV to:

  • AIN1 and AIN6
  • AIN2 and AIN6
  • AIN3 and AIN6
  • AIN4 and AIN6

Please connect the Thermistor to:

  • Vref and AIN 5

Please connect the 10K reference resistor to:

  • AIN5 and GND

NB: Please do not forget to enter the correct Polynomials for the Thermistor and the instruments. 

The PT100 cannot be connected on the LOGBOX SD in combination with all four instruments as this will result in a shortage of analog inputs.