Sheathed RTD Sensor for Temperature Measurement
Product Description
A sheathed RTD is a robust, integrated temperature sensor manufactured through a specialized process that combines a sensing element (such as platinum wire), insulation material, and a metal protective sheath.
It is one of the most commonly used and reliable contact temperature sensors in industry, particularly suited for harsh environments. Its core temperature measurement principle is the same as that of a standard RTD: both operate based on the characteristic that the electrical resistance of a metal conductor changes with temperature.
WINNERS supplies high-quality sheathed RTDs. Our PT100 RTDs utilize a thin-film sensing element, offering a compact size, fast response, cost-effectiveness, and excellent long-term stability.
Working Principle of Sheathed RTDs
An RTD measures temperature by utilizing the property that the electrical resistance of a metal conductor changes predictably with temperature. As the temperature varies, the resistance value exhibits a highly linear relationship to the temperature. By accurately measuring this resistance, the corresponding temperature value can be precisely determined.
Features of Sheathed RTDs
• High mechanical strength and fast response time
• Resistant to pressure and corrosion, with excellent long-term stability
• Flexible design for versatile installation
Applications of Sheathed Thermocouples
• Power Industry: Temperature measurement in power plant boilers, steam pipelines, and turbine exhaust systems.
• Petrochemical Industry: Temperature monitoring of reactors, cracking furnaces, pipelines, and storage tanks.
• Metallurgical Industry: Temperature control in blast furnaces, hot blast stoves, and steel rolling production lines.
• Mechanical Equipment: Overheat protection for engines, bearings, gearboxes, etc.
• HVAC (Heating, Ventilation, and Air Conditioning): Water and air temperature measurement in central air conditioning systems.
• Laboratories & Scientific Research: Applications requiring high-precision and highly stable temperature measurement.
Temperature Range and Accuracy
|
Temperature Range & Accuracy |
|||
|
Type |
Measurement Range |
Accuracy Class A |
Accuracy Class B |
|
PT100 |
-200℃ to +500℃ |
±0.15℃ |
±0.3℃ |
Sheathed RTD Selection Guide
RTD Type: PT100
Accuracy: ±0.15℃ / ±0.3℃
Number of Elements: Single / Dual
Process Connection: Threaded or Flange, Removable or Fixed
Sheath Material: 304, 316L, 321 Stainless Steel
Sheath Diameter (mm): φ2, φ3, φ4, φ5, φ6, φ8
Length or Insertion Depth: Customizable
Connection Head Type: Splash-Proof, Waterproof, Round Quick-Connect, Flat Quick-Connect, Handle Type, With Compensation Cable
For more details about our sheathed RTD products, please feel free to contact us. We will respond to you promptly.
