38*19mm Surface Mount PT100 resistance temperature detector (RTD)

Pt100 is a platinum thermal resistance whose resistance is proportional to the change in temperature. The relationship between the resistance of PT100 and temperature is: when the temperature of PT100 is 0 °C, its resistance is 100 ohms, and its resistance is about 138.5 ohms at 100 °C. Its industrial principle: When the PT100 is at 0 degrees Celsius, its resistance is 100 ohms, and its resistance will increase at a constant rate as the temperature rises.The resistance value and temperature of the metal thermal resistance can generally be expressed by the following approximate relationship, that is,Rt=Rt0[1+α(t-t0)] Where Rt is the resistance at temperature t; Rt0 is the corresponding resistance value at temperature t0 (usually t0 = 0 °C); α is the temperature coefficient. The relationship between the resistance and temperature of the semiconductor thermistor is Rt=AeB/t Where Rt is the resistance at a temperature of t; A, B depends on the constant of the structure of the semiconductor material.

1 No need to drill holes, does not damage the pipeline
2 Fits the surface, stable temperature measurement, quick response
3 Shockproof, aging-resistant, suitable for equipment vibration environments
4 Small size, easy to install, low cost
5 Works with transmitters to output 4-20mA, very convenient to connect to PLC
6 Suitable for conditions where insertion into liquid or gas is not possible

1. Temperature measurement of the outer wall of steam pipes and hot water pipes
2. Temperature measurement of motor, inverter, and electrical control box heat dissipation
3. Molds, heating platforms, aluminum plates, oven housings
4. Lithium batteries, new energy cabinets, energy storage equipment
5. Ducts, flue outer walls, HVAC units
6. High-voltage equipment, sealed tanks that cannot be drilled