Resistance thermometer - highly accurate temperature sensors
Trust on experts in resistance cermometers
We at Seikom Electronic offer a growing product portfolio of resistance thermometers for a wide variety of industrial requirements. Our selection is based on over 30 years of experience in the field of innovative measurement and control technology. With our expertise, we have reliable solutions for you and your very personal claim for different temperature measurement tasks. Take a look around our selection and find the right resistance thermometer for your specific requirements.
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What can you expect from resistance cermmeters?
Resistance thermometers are precise measuring devices used in industrial applications to measure temperatures. They are based on the principle that the electrical resistance of a material changes with the temperature. Typically, metals such as platinum, nickel or copper are used, whereby Platin is the first choice material here due to its chemical resistance and accuracy.
The measurement resistance is in the feelers. At this point, the electrical resistance is measured, which means that conclusions can be drawn directly on the ambient temperature.
What are the advantages of resistance thermometers?
Resistance thermometers score with their high accuracy and reliability. These remarkable properties are crucial wherever industry depends on an exact temperature control and it is about the safety and quality of the end product. Today they are therefore an indispensable component in industrial control and monitoring systems.
Further advantages of the smart Temperature sensor:
- Long -term stability with reduced necessity for frequent calibration and maintenance
- Typically designed for wide temperature ranges from –200 ° C to over 600 ° C
- Linear temperature resistance relationship, which simplifies temperature measurement and processing
- High robustness to environmental influences, even under rough industrial conditions
- Easy integration into existing industrial systems
- Compatibility with digital control systems using interface options such as 4-20 mA outputs or digital bus connections
What types of resistance cervix are there?
Basically, you can choose between different variants. The differences are mainly due to the use of the metal, but not exclusively. In addition to nickel resistance thermometers and copper resistance thermometers, you will also find thin-layer and thick layer resistance thermometers and wire-wound resistance thermometers. The most important are the platinum resistance thermometer PT100 and PT1000.
Platinum resistance thermometer (PT100 and PT1000)
The platinum option is one of the most widespread resistance core in industry. You use platinum as resistance material because it is very stable, precise and linear over a wide temperature range. The PT100 has a nominal resistance of 100 ohms at 0 ° C, while the PT1000 comes with 1000 ohms. They are particularly suitable for applications that require very high accuracy, such as in laboratories or in the manufacture of pharmaceutical products.
Nickel resistance thermometer
Nickel resistance thermometers are a cheaper alternative to platinum sensors and have good properties for standard applications. However, they have a slightly lower temperature range and are less stable than platinum thermometers.
Copper resistance thermometer
Similar to nickel, copper thermometers are popular due to their low price and good thermal properties. However, due to the oxidation of the metal at higher temperatures and the resulting drift, they are less stable than platinum and nickel sensors. Their use is usually limited to less critical and cost -sensitive applications.
Balco resistance thermometer
Balco sensors are a special type of resistance thermometer that use a alloy made of nickel and iron. They show good linearity and are robust compared to environmental influences. Balco resistance thermometers are particularly useful in industrial applications where strong vibrations and other mechanical influences can occur.
Thin-layer and thick layer resistance thermometer
The technologies used here allow production with very small dimensions and high response speed. Thin-layer thermometers are produced by steaming or spending platinum on a substrate, while thick-layer thermometers use a platinum paste that is applied to ceramic substrates and then burned. Both types are ideal for applications in which fast reaction times and miniaturization are required.
Wire -wrapped resistance thermometers
Wire -wrapped resistance thermometers use a finely wrapped wire made of a temperature -dependent material, mostly platinum that is mounted on a non -conductive material. They are characteristic of their very high accuracy and stability, but are also more expensive and susceptible to mechanical damage compared to other models. They are often used in scientific and high -precision applications.
Selection criteria for resistance thermometers
- Measurement area:The temperature range required for the application must be covered.
- Accuracy:Depending on the process requirements, sensors must be selected with the appropriate accuracy.
- Material construction:The materials must be suitable for use in the respective environmental conditions.
- Construction:From thin films to wire windings, the design should be selected for the specific application.
- Connection type:Whether with plugs, cables or head mounting, the connection options must match the installation environment.
- Certifications:Certificates such as ATEX for areas at risk of explosion may be required.
Areas of application of resistance thermometers
Resistance thermometers are used in a variety of industries and scenarios in which precise temperature measurement is required:
- Chemical industry:Monitoring process temperatures in reaction containers and distillation columns.
- Pharmaceutical industry:Ensuring precise temperature control in laboratories and in medication production.
- Food industry:Temperature monitoring in food production and storage for quality assurance.
- Oil and gas:Temperature measurement in funding and refinery processes.
- Energy generation:Monitoring of operating temperatures in cooling systems and turbines.
Which installation conditions have to be met for resistance thermometers?
- Installation location:Installation in representative measuring points to avoid temperature gradients that could affect the measurement result.
- Housing and protection:Protective covers are to be used to protect the sensors from mechanical damage and corrosive media.
- Environmental conditions:An installation scenario that minimizes extreme temperatures, vibrations and electromagnetic disorders.
We at Seikom Electronic cordially invite you to our extensive selection of resistance thermometers and Product categories To get to know that are tailored to your individual requirements. Our experienced team is at your side with a sound expertise on request to advise you on the selection of the optimal model that meets your specific needs.
Do not hesitate to contact us at any time without obligation. We attach great importance to treating every customer concerns personally and with the greatest care.
