Thermometers and transmitters for the process industry
Endress+Hauser offers a complete assortment of compact thermometers, modular thermometers, thermowells, measurement inserts, transmitters and accessories for all types of process industries such as Oil & Gas, Chemicals, Food & Beverage, Life Sciences, Primaries & Metal, Power & Energy.
Our Manufacturers
Resistance Temperature Detectors
Temperature Measurement with Resistance Temperature Detectors (RTD)
Heating, destiling, evaporating, sterilizing, cooling and freezing – Temperature is the most measured parameter in the process industry, food production and in the production of pharmaceuticals, in order to ensure the quality of products and the safety of the plant.
Worldwide the temperature measurement using RTDs has established itself as the dominating technology.
Thermowells & Protection Tubes
Thermowells & Protection Tubes
Thermowells & protection tubes for temperature sensors in different industrial applications
The thermowell is the process wetted part of the thermometer. Basically, thermowells are divided into protection tubes constructed from welded tubes and thermowells made of drilled barstock material.
In many cases thermometers cannot be placed directly into the medium but need protection from rough process conditions. Furthermore the thermowell makes sure that an exchange of the measurement insert is possible without interrupting the process.
RTD – Resistance temperature detectors: Measuring principle
The RTD sensor changes the electrical resistance with a change in temperature. They are suitable for the measurement of temperatures between -200 °C and approx. 600 °C and stand out due to high measurement accuracy and long-term stability. The sensor element most frequently used is a Pt100. As a standard, Endress+Hauser RTD sensors fulfill the IEC 60751 accuracy class A.
TC – Thermocouples: Measuring principle
A thermocouple is a component made of two different metals connected with each other at one end. An electrical potential (thermoelectric force) is caused due to the Seebeck effect at the open end if the connection and the free ends are exposed to different temperatures. With the help of the so-called thermocouples reference tables (see IEC 60584) the temperature at the connection (measuring junction) can be concluded.
Thermocouples are suitable for temperature measurement in the range of 0 °C to +1800 °C. They stand out due to the fast response time and high vibration resistance.
Benefits
Increases the life cycle of the measurement insert through protection against process influence
Possible measurement insert exchange under process conditions
Mechanical stability against pressure and flow
Multipoint Temperature Sensors
Multipoint Temperature Sensors
Multipoint assemblies with RTD and thermocouple sensors allow for reliable temperature measurement and safe operation in critical applications, ranging from low to high pressure process reactors as well as for storage tanks. Our standardized and engineered products are designed to customer specifications and provide detailed temperature profiles for optimized process control, increasing plant availability, efficiency and safety.
Material selection, mechanical design, heat treatments and construction technics are the latest state-of-the-art in terms of product optimization.
Thermocouples
Thermocouples
Cable probes for different applications
Compact RTD and TC thermometers with non-detachable cable for plug-in or screw-in connection. Cost efficient sensors for use in many processes and laboratory applications.
A cable probe is easy to install and provide a high operational safety due to reliable and accurate temperature measurement in common processes.
Portfolio description
Cable probes are specially suited to temperature measurement in machinery, laboratory equipment and plants in gaseous or liquid medium like air, water, oil, etc.
Without additional thermowell the probe sheath is directly in contact with the process medium. This enables the cable probe to detect rapid temperature changes fast and accurate.
In the process automation two measurement principles for temperature have asserted themselves as a standard:
RTD – Resistance temperature detectors: Measuring principle
The RTD sensor changes the electrical resistance with a change in temperature. They are suitable for the measurement of temperatures between -200 °C and approx. 600 °C and stand out due to high measurement accuracy and long-term stability. The sensor element most frequently used is a Pt100. As a standard, Endress+Hauser RTD sensors fulfill the IEC 60751 accuracy class A.
TC – Thermocouples: Measuring principle
A thermocouple is a component made of two different metals connected with each other at one end. An electrical potential (thermoelectric force) is caused due to the Seebeck effect at the open end if the connection and the free ends are exposed to different temperatures. With the help of the so-called thermocouples reference tables (see IEC 60584) the temperature at the connection (measuring junction) can be concluded.
Thermocouples are suitable for temperature measurement in the range of 0 °C to +1800 °C. They stand out due to the fast response time and high vibration resistance.
Benefits
High flexibility through user-specific insertion lengths and variable process connections
Fast response time
Cost efficient