What is an RTD?
Resistance Temperature Detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes. They have been used for many years to measure temperature in laboratory and industrial processes, and have developed a reputation for accuracy, repeatability, and stability.
Why use an RTD instead of a thermocouple or thermistor sensor?
Each type of temperature sensor has a particular set of conditions for which it is best suited.
With a temperature range up to 850°C, RTDs can be used in all but the highest-temperature industrial processes. When made using metals such as platinum, they are very stable and are not affected by corrosion or oxidation. Other materials such as nickel, copper, and nickel-iron alloy have also been used for RTDs. However, these materials are not commonly used since they have lower temperature capabilities and are not as stable or repeatable as platinum.
All types of RTD (Resistance Temperature Detector) sensor that are made from Platinum. The Pt100 sensor has a resistance of 100 ohms at 0°C and is by far the most common type of RTD sensor. The Pt50 sensor has a resistance of 50 ohms at 0°C and the Pt1000 has
The flexible RTD sensor are constructed using thin film or ceramics wire wounded sensing bulb for fast responses. The RTD sensor can be constructed in different insulated material on in different length. Sensor are available with or without connectors.
Mineral Insulated RTD sensor with Pot Seal Type which allows the transition to with standard 2 meters silicon insulated extension cable which can be formed to shape to suit particular applications without impairing performance. Others cable types and length available upon request.
These semi rigid RTD sensors are ideal for all applications from simple temperature measurement to more arduous environments. Mineral Insulated can be formed to shape to suit particular applications without impairing performance. RTD sensor are incorporated with connecting plugs. Compatible RTD sockets, extension cables and adjustable compression fittings is available
Mineral Insulated RTD Sensor are made of a flexible, thin-walled insulated cable, in which the resistance-wires are embedded in compressed fire-resistant magnesium oxide. The good thermal transfer between the casing and the RTD sensing bulb enables short response times and excellent measuring accuracy. The vibration-resistant design guarantees a long operating
Metal Sheath RTD sensor are available with 10mmØ or 12mmØ, with general-purpose connection heads. Inside the head is a ceramic terminal block which makes the connections to the extension cables very easy. The sensors can be supplied as simplex, duplex or with optional 4 to 20 mA transmitter. The MgO-insulated
Industrial Screw-in metal sheath RTD sensor are the preferred choice for measuring low temperature in liquids and gasses for light industrial application. An important factor for selecting these RTD sensor is their ability to form reliable seals for vacuum and high pressure applications. Protection tubes made of stainless steel protect
This heavy-duty RTD sensor that can be used for measuring and regulating exhaust gas from diesel engines, turbines and compressors within stationary and marine applications. This temperature sensor is specially designed for heavy-duty applications up to 600 °C. All parts in contact with the media are made of stainless steel.
Nipple-Union-Nipple Assembly RTD Sensor Complete With Connection Head.
Sanitary RTD Sensors are designed for use in Sanitary or Hygienic Clean-in-Place applications in the Food, Dairy, Beverage and Bio-Pharmaceutical industries. Temperature probes can be built with terminal heads out of stainless steel, aluminium die-casting, or plastic. Various process connections are available to meet the different requirements of individual food/pharmaceutical