Temperature Transmitters

Temperature is the most important parameter to be measured in the process industry. Various types of temperature measurement devices are used for this purpose. Temperature transmitters are the most preferred temperature devices due to their measurement accuracy, excellent EMI protection, and galvanic isolation properties. The Transmitter Shop (TTS) provides branded temperature transmitters to its clients in the process industry.

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What Is a Temperature Transmitter?

A temperature transmitter is an industrial instrument that converts the signal from a temperature sensor —such as an RTD (Pt100) or thermocouple (Type K, J, T)  into a standard 4-20 mA output signal for transmission to a control system or data acquisition device. Unlike a bare sensor, a temperature transmitter conditions the signal electronically, providing accurate and noise-free readings even over long cable distances. Most modern temperature transmitters also support HART protocol, enabling two-way digital communication over the same 4-20 mA loop for remote configuration and diagnostics.

How Does a Temperature Transmitter Work?

A temperature transmitter works by receiving a low-level electrical signal from the connected sensor  a resistance value from an RTD or a millivolt signal from a thermocouple and converting it into a linear 4-20 mA current signal proportional to the measured temperature. The 4 mA represents the low end of the calibrated range and 20 mA represents the high end, allowing the receiving control system to calculate the exact temperature at any point. HART-enabled transmitters simultaneously carry a digital signal over the same two wires, which allows plant engineers to remotely access transmitter diagnostics, sensor health status, and configuration parameters without physically visiting the field device.


Types of Temperature Transmitters Provided by TTS

Following are the popular types of temperature transmitters in our inventory:

  • Explosion-Proof and Weather-Proof Temperature Transmitters: These temperature transmitters are made for harsh process environments. The explosion-proof, and weather-proof temperature transmitters feature external closures that are made from explosion-proof designated material or stainless steel. The external closure protects internal components. These transmitters provide accurate readings, and can be locally adjusted. 
  • DIN Rail Mounting Temperature Transmitters: These transmitters are also called panel mount transmitters, and are used across various industries. These transmitters are affordable, and can be paired with various sensors. Due to their DIN rail configurations, these transmitters can be easily mounted. We provide DIN rail mounting transmitters from the famous brand Foxboro. These transmitters can be easily paired with a variety of thermocouples and sensors.
  • Head Mounting Temperature Transmitters: These transmitters can be directly incorporated with the exterior housing, or sensor connection heads. The head mounting types of transmitters are very popular with our process industry clients due to their easy to install designs, and minimal wiring requirements. Most of the Rosemount temperature transmitters in our inventory are head, field, and DIN Rail mounting types.
  • Field Mounting Temperature Transmitters: These temperature transmitters are housed in their own exterior housing. This type of housing makes them ideal for external conditions, where extra protection may be required. These transmitters are usually located closer to sensors for better signaling.

Benefits of TTS’s Temperature Transmitters

Following are the few benefits that our customers accrue by ordering temperature transmitters from TTS:

  • Our inventory features only transmitters from the leading brands such as Honeywell, Rosemount, Foxboro, etc.
  • The temperature transmitters are backed with the manufacturer’s guarantee.
  • All temperature transmitters are guaranteed to provide accurate readings and tested for harsh temperature environments.
  • Our clients can avail new, as well as refurbished temperature transmitters from leading brands.

Applications of Temperature Transmitters

Our branded temperature transmitters are used in the following industries:

  • On-shore and Offshore Explorations
  • Power Plants
  • Chemical, Pharmaceutical, and Petrochemical Industries
  • Cement Processing Plants
  • Machine-building
  • Food and Beverage
  • Biotechnology

To know more about our branded temperature transmitters and other temperature measurement devices, you can contact us via phone on +1-888-964-8837. You can also send us an email at sales@transmittershop.com.

Frequently Asked Questions (FAQ's)

How do I select the right temperature range for a temperature transmitter?

Set the calibrated range 10–15% beyond your expected process minimum and maximum temperatures. Most HART transmitters like the Rosemount 644 allow remote re-ranging without removing the instrument from service.

What is the typical lifespan of an industrial temperature transmitter?

A well-maintained transmitter from a reputable manufacturer typically lasts 10 to 15 years. Regular calibration and proper installation significantly extend service life. TTS offers in-house calibration and repair to keep your instruments performing accurately.

Can a temperature transmitter work with any thermowell?

Yes, as long as the sensor fits correctly and the immersion length is adequate. TTS supplies both transmitters and matching thermowells, so you can source a complete compatible assembly from a single supplier.