The sensor is used in a refrigeration plant (small one), when I connect wires it was already charged.
analog input value is 240 min, 320 max. Wika sensor 0-10 bar.
int sensorValue = 0;
int analogPin = A1;
int pressure = 0;
float voltage;
void setup() {
sensorValue = analogRead(analogPin); // the system is on pressure, so this is an initial pressure
voltage =sensorValue*(4.4/1023);
pressure = (voltage - 0.88)*10/(4.4 - 0,88); // I am using voltage to convert than analog values
Pressure values are not changing reasonable, they are way small which don't correspond to R134a table
Note: I cant get minimum analog values at 0 bar and I cant simulate 10 bar.