NTC Thermistor with KC868-COLB

[ahcdias]

I'm testing a NTC Thermistor with analog input of COLB.
An NTC 103AT in series with a 10k resistor.
Both connected to +5V and input A1.

The voltage measured at input A1 is different from the calculated one (VA1 = 10k x 5/(RThermistor + 10k).
It seems that the A1 input impedance is low and influences the circuit.
Can you help me with that?

Thanks!

[admin]

can you take a photo of your wire. you can draw on a paper.

[ahcdias]

photo attached

[admin]

you need NTC adapter board convert to 0-5V, like this , i found in amazon:
https://www.amazon.com/thermistor-voltag...B01N7FK3JG
also there are many adapters can be chosed.