I have a heatpump with a domestic hot water tank. The heatpump uses a 10k ohm NTC sensor to measure the temperature in the hot water tank.
I would like to couple this sensor to Loxone, for information purposes, but also to regulate when heating of the hot water tank is allowed.
I know which voltage corresponds to which temperature, but if I connect the analogue input and GND to the two wires of the sensor, the resistance measured by the heatpump changes, and thus the temperature readings are wrong.
Does anyone have an idea how to do this?
Thanks in advance!
Astrid