Products

Temperature Transmitters: A Guide to choosing the correct Temperature Transmitter

What is a Temperature Transmitter?

A temperature transmitter is a device that converts the analog output signal from a temperature sensor, typically a thermocouple or RTD (Resistance Temperature Detector) Pt100, into a standard and easily readable value. These transmitters convert thermocouple or RTD signals into various outputs, including 4-20 mA, 0-5 V, or to digital protocols like HART. They are available as either head mounting (at the end of a sensor) or DIN rail mounted with a wide range of features as shown below:

Popular Thermocouple and RTD Transmitters

Thermocouple Transmitter - Linearised Head Mounting

Temperature Transmitter - Thermocouple Head MountedLinearised head mount thermocouple transmitter

RTD Pt100 Linearised Head Mounting Transmitter

Temperature Transmitter - RTD Pt100 Head MountedLinearised head mount Pt100 transmitter

Universal Input Fully Isolated Head Mounting Transmitter

Temperature Transmitter - Universal Head Mounted Linearised & isolated head mount transmitter with universal input

Universal Input Slimline DIN Rail Mounting Transmitter

Temperature Transmitter - Universal DIN Rail MountedLinearised & isolated slimline DIN Rail mount transmitter with universal input
RTD Pt100 Slimline DIN Rail Mounting Transmitter Temperature Transmitters - RTD Pt100 DIN Rail MountedLlinearised Slimline DIN Rail mounted Pt100 Transmitter High Precision DIN Rail
Voltage/Current Output
Thermocouple Transmitter
Temperature Transmitters - High Precision Thermocouple DIN Rail MountedLinearised & isolated slimline DIN Rail Voltage/Current output thermocouple transmitter
High Precision DIN Rail
Voltage/Current Output
RTD Pt100 Transmitter
Temperature Transmitters - High Precision RTD Pt100 DIN Rail MountedLinearised & isolated slimline DIN Rail Voltage/Current output RTD Pt100 transmitter
HART Protocol Thermocouple and RTD Transmitter Head Mounted HART Transmitter Head mounting transmitters that can be set by a HART communicator or other HART related software. HART Protocol Thermocouple and RTD Transmitter DIN Rail Mounted HART TransmitterDIN Rail mounting transmitters that can be set by a HART communicator or other HART related software. ATEX Approved Thermocouple and RTD Transmitter Head Mounted ATEX Transmitter ATEX approved head mounting transmitters, ideal for a wide range of applications where ATEX approval is required.ATEX Approved Thermocouple and RTD Transmitter DIN Rail MountedATEX Transmitter ATEX approved DIN Rail mounting transmitters, ideal for a wide range of ATEX approved applications.Thermocouple and RTD Transmitter DIN Rail Voltage/ Current Output with DisplayProvides a 0-10V DC, 0-1V DC, 4-20mA or 0-20mA output signal with display RTD Transmitter DIN Rail Voltage/Current Output Thermocouple with DisplayIsolated DIN Rail mounting transmitter that provides a 0-10V DC, 0-1V DC, 4-20mA or 0-20mA output signal with display Thermocouple and RTD DIN Rail Mounting TransmitterMicroprocessor based, high accuracy, scaleable DIN Rail mounting transmitters Low Cost Thermocouple and RTD DIN Rail Mounting TransmitterLow cost DIN Rail mounting transmitters

How Do Temperature Transmitters Work?

Temperature transmitters work by taking the analog signal generated by a temperature sensor (emf for a thermocouple or resistance for an RTD) and converting it into a standardised output. A simplified explanation of the process is detailed below:

  1. Signal Acquisition: The transmitter collects the voltage or resistance signal from the temperature sensor.

  2. Signal Conditioning: It then processes and conditions the signal (e.g. cold junction compensation for thermocouples) to ensure accuracy and stability.

  3. Output Signal Generation: The transmitter generates a standardised output signal, such as 4-20 mA, or 0-5Vdc which is proportionate to the temperature measurement. For example, the transmitter can be programmed to give a linearised 4-20mA output over a range of 0ºC to 100ºC where 4mA represents 0ºC and 20mA represents 100ºC.

  4. Signal Transmission: This standardised output signal can then be transmitted over long distances (useful for thermocouple signals to eliminate volt drop errors) as part of a 2 wire loop to instrumentation, data loggers, temperature controllers or PLCs.

Applications for Temperature Transmitters

Temperature transmitters are used for various applications in a wide range of industries, including:

  1. Industrial Processes: For precise temperature control and monitoring in manufacturing and chemical processes.

  2. HVAC Systems: To monitor and regulate heating, ventilation, and air conditioning systems.

  3. Scientific Research: In laboratories and scientific experiments.

  4. Energy Management: In energy-efficient and cost-effective temperature control solutions.

  5. Petrochemical / Oil and Gas: ATEX approved transmitters are available for a wide range of uses within the Oil and Gas Industry.

Summary

Temperature transmitters play a pivotal role in maintaining accurate temperature measurement and control in various industries. Their ability to convert sensor signals into standardised outputs, along with their many features and benefits, makes them an essential component in temperature management systems.

For more information on temperature transmitters, specific applications, or assistance in choosing the right transmitter for your application, please contact one of our experienced engineers on 01895 252222 or use the Live Chat button.

Need advice on choosing a temperature transmitter?

Contact one of our experienced engineers on
01895 252222 or use the Live Chat button.


BACK TO TOP
Products

Contact Us

About TC

FREE Guide

Privacy Policy

Terms and Conditions

Sitemap
FREE Wallchart Guide to
Thermocouples and RTD Sensors


Join over 500,000 engineers and buyers who have already received our FREE 74 page A3 Guide to Thermocouple and Resistance Thermometry

Company Name
  Address 1
Your Name
  Address 2
Title / Dept.
  County / Region / State
Email
  Postcode / ZIP Code
Telephone
  Country
Company Name
Your Name
Title / Dept.
Address 1
Address 2
County / Region / State
Postcode / ZIPCode
Country
Email
Telephone

We will only ever use the information you provide to occasionally contact you regarding our products and we will never disclose your details to a third party. Our privacy policy can be viewed here



I agree to the terms and conditions listed in the Privacy Policy

View our ISO 90001/2008 Certficate
View our ISO 90001/2008 Certficate







Thermocouple Sensors
Mineral Insulated Thermocouples
Thermocouples with Mini Plug
Thermocouples with Terminal Head
Thermocouples with Cable
High Temperature Thermocouples
General Purpose Thermocouples
ATEX/IECex Thermocouple Sensors
Ceramic Thermocouple Sensors
Fast Response Thermocouple Sensors
Autoclave Thermocouple Sensors
Surface Measurement Thermocouple Sensors
FEP Insulated Thermocouple

Platinum Resistance Thermometers
Mineral Insulated RTD Pt100 Sensors
Rigid Stem RTD Pt100 Sensors
Hand Held RTD Pt100 Sensors
Surface Measurement RTD Pt100 Sensors
RTD Pt100 Sensors with Cable
RTD Pt100 Sensors with Mini Plug
Autoclave RTD Pt100 Sensors
RTD Pt100 with Terminal Head
ATEX/IECex Platinum Resistance Thermometers
Fast Response RTD Pt100 Sensors
Air Temperature RTD Pt100 Sensors
Magnetic RTD Pt100 Sensors
Cable
PVC Single Pair Thermocouple Cable
PFA Single Pair Thermocouple Cable
Fibreglass Single Pair Thermocouple Cable
PVC Multipair Thermocouple Cable
PFA Multipair Thermocouple Cable
Fibreglass Multipair Thermocouple Cable
PVC RTD Pt100 Cable
PFA RTD Pt100 Cable
Fibreglass RTD Pt100 Cable

Miniature Thermocouple Connectors
Mini Thermocouple Connectors – 220ºC Rated
Mini Thermocouple Connectors – 350ºC Rated
Mini Thermocouple Connectors – 650ºC Rated
Mini Thermocouple Connector Accessories
Mini Thermocouple Connector Panels
Mini Three Pin Connectors

Standard Thermocouple Connectors
Standard Thermocouple Connectors – 220ºC
Standard Thermocouple Connectors – 350ºC Rated
Standard Thermocouple Connectors – 650ºC Rated
Standard Thermocouple Connector Accessories
Standard Thermocouple Connector Panels
Standard Three Pin Connectors
Instrumentation
Hand Held Indicators
Panel Indicators
Temperature Transmitters
Temperature Controllers
Temperature Programmers
Temperature Calibrators
Chart Recorders
Multi Channel Indicator
DIN Rail Mounted Transmitters
Head Mounted Transmitters
ATEX/IECEx Rated Transmitters
Dry Block Calibrator
Temperature Dataloggers

Temperature Accessories
Compression Fittings
Pressure and Vacuum Feedthroughs
ATEX/IECEx Compression Fittings

Calibration
UKAS Calibration Services

Pressure
Pressure Gauges
Pressure Transmitters


© 1998- TC Ltd., P.O. Box 130, UXBRIDGE, UB8 2YS, United Kingdom
Tel.: 01895 252222, Email: info@tc.co.uk
© 1998- TC Ltd., P.O. Box 130, UXBRIDGE, UB8 2YS, United Kingdom
Tel.: 01895252222, Email: info@tc.co.uk