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Temperature transmitters for industrial applications

Temperature transmitters

Temperature transmitters for all industrial applications

The task of a temperature transmitters is to transform the sensor signal into a stable and standardized signal. However, modern transmitters using digital technology are more than just that: they are intelligent, flexible and offer high measurement accuracy. They are a crucial component of the measurement chain capable of improving safety and and efficiency in your process.

Our iTEMP® series temperature transmitters at a glance:

Portfolio description

Our iTEMP® temperature transmitter offering covers a large selection of models, housings, approvals and communication standards:

  • DIN rail mounted temperature transmitters for panel installation

  • Temperature transmitters for direct installation in thermometer Form B terminal heads

  • Field housings for direct connection in process areas

  • Temperature transmitters for hazardous areas

  • Secure Bluetooth® interface option for remote parametrization

  • Seamless system integration with common communication protocols​

Temperature transmitter iTEMP TMT142B with Bluetooth® ©Endress+Hauser

Temperature transmitters such as the iTEMP TMT142B enable wireless Bluetooth® parametrization in the field

iTEMP TMT82 temperature transmitter  2-channel devices for hazardous areas and SIL applications ©Endress+Hauser

Temperature transmitters housing variants include terminal head form B or top hat rail (DIN rail) mounting

Temperature transmitters for industrial applications

iTEMP TMT72 temperature transmitter ©Endress+Hauser

Smart temperature transmitters enable device health and sensor failure diagnostics for fast troubleshooting

The configurable transmitters not only transfers converted signals from resistance thermometers (RTD) and thermocouples (TC), they also transfers resistance (Ω) and voltage (mV) signals. In order to obtain the highest measurement precision, linearization characteristics for every type of sensor are stored in the transmitter.

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

  • Safe operation in hazardous areas, international approvals such as FM, CSA, ATEX, NEPSI, IECEx

  • Diagnostics information according to NAMUR NE 107

  • Sensor-transmitter matching for higher measurement accuracy

  • Sensor monitoring functions increase reliability of the measurement point

  • Tool-free wiring with push-in terminal technology

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