Pt100 Temperature Sensor Connection Diagram. It is called a pt100 because at 0 deg c it will measure 100 ohms. The information contained in 1 4 14 are for the adafruit max31865 board pt100 pt100 sensors 4a.
The rtd pt100 and pt1000 are available in a similar range of tolerances and both can have similar temperature coefficients depending on the purity of the platinum used in the sensor. Wiring diagram pictures detail. It is in simple terms a resistance that changes with temperature.
When comparing the pt100 vs pt1000 in terms of resistance keep in mind that resistance value readings for the pt1000 will be higher by a factor of ten than.
A1b1 a2b2 and c1c2. A1b1 a2b2 and c1c2. It is called a pt100 because at 0 deg c it will measure 100 ohms. When wiring with two wires first jumper across a1 and b1and a2 and b2 respectively then connect pt100 sensors and to the rtd module according to the following diagram on the left.
