Low price Prefabricated Waterproof PT100 RTD Temperature Detector Sensor

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 Removable and replaceable chip, no need to replace the whole unit if damaged, saving money
2 Thick and strong tube wall, resistant to high pressure and vibration
3 Higher temperature resistance, up to 500℃~550℃
4 Waterproof and dustproof, durable in industrial environments
5 Compatible with instruments, PLCs, and temperature transmitters
6 Multiple installation methods, highly versatile

1. Power Industry (Most Common)
Boiler furnace, flue, air preheater, turbine pipeline temperature measurement
Generator set cooling water, oil system, hot air duct
High temperature, high pressure, strong vibration; suitable for prefabricated thickened protective tubes

2. Chemical / Petroleum / Natural Gas
Reactors, heat exchangers, distillation columns, high-pressure process pipelines
Acid-base media, high-temperature oil and gas, sealed tanks
Waterproof, explosion-proof, corrosion-resistant, and stable

3. Metallurgy / Heat Treatment / Kilns
Industrial electric furnace, annealing furnace, drying kiln, heat treatment production line
High-temperature air ducts, metal heating equipment
Can use high-temperature resistant materials (2520, 310S) for higher temperature resistance

4. HVAC / Thermal / Heating Pipelines
Heat exchange stations, steam pipelines, main hot water pipes, boiler rooms
High-pressure hot water and steam require pressure-resistant and vibration-resistant structures

5. Water Treatment / Environmental Protection
Aeration tanks, biochemical tanks, reclaimed water, circulating water pipelines at wastewater plants
Dosing systems; for corrosive conditions, choose 316L protective tubes

6. Food / Pharmaceutical (General Industrial Pipelines)
Steam sterilization, hot water pipelines, raw material storage tanks
No clamps needed; ordinary threaded prefabricated assembly is sufficient

7. Mechanical Equipment / Automation
Air compressors, ovens, waste heat equipment, large unit oil temperature and water temperature
Strong vibration, poor installation environment; prefabricated anti-vibration and durable

8. Buildings / Large Factories
Central air conditioning units, chilled water, cooling water, heat source units
Fixed installation, long-term online monitoring