description

for temperature sensing accuracy, there is nothing like a Platinum RTD. Resistance Temperature Detectors (RTDs) are temperature sensors that contain a resistance that changes the value of the measured resistance that changes the temperature, basically a kind of thermistor. in this sensor, the resistance is actually a small strip of Platinum with a resistance of 100 ohms at 0 ° C, hence the name PT100. compared to most NTC / PTC thermistors, the type of RTD PT is much more stable and accurate (but also more expensive) PT100's have been used for many years to measure temperature in laboratory and industrial processes, and have developed a precision reputation (better than thermocouples), repeatability and stability.

however, to get you the accuracy and accuracy of your PT100 RTD you should use an amplifier that is designed to read the low resistance. better still, it has an amplifier that can be adjusted automatically and compensate the resistance of the connection cables. if you are looking for a great RTD sensor, today is your lucky day, because we have a beautiful our RTD Sensor Amplifier with the breakout MAX31865 for use with any 2, 3 or 4 wire PT100 RTD!

we have made several MAXIM amplifiers and are excellent-but thermocouple thermocouples do not have the best accuracy or precision, for when the readings should be as good as it can be. the MAX31865 takes care of all your RTD needs, and can even compensate for 3 or 4-wire RTDs for greater accuracy. connect to it with any microcontroller via SPI and read the resistance ratio of the internal ADC. we put a 430Ω 0.1% resistor resistance as a reference of the break. we have a sample code that calculates the temperature depending on the resistance for you.

we even made the 5 V breakout compatible, with a 3.3 V regulator and level switch, so you can use it with any For Arduino or Microcontroller.