Temperature Transmitters for Signal Conditioning

Temperature transmitters convert thermocouple, RTD, and low-level temperature sensor signals to 4-20mA, 0-10V, or other DC voltage/current outputs. Acromag offers temperature transmitters in head-mount and DIN-rail form factors. Some temperature transmitters have software-configured universal input to convert a broad range of temperature sensor and other signals with a single unit. Many options to choose from -  head mount temperature transmitter, DIN-rail temperature transmitter, universal programmable transmitter browse the options below.  

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    801T: Universal Input Intelligent Temperature Transmitter

    • 0 to 20mA DC, 0 to 10V DC output
    • Mechanical relay (25V @ 5A) alarm
    • 10-36V DC power
    • Software configured
    • Performs linearization, square root extraction, and optional limit alarm functions
    These transmitters isolate and convert sensor inputs to noise-free, proportional DC current or voltage output signals. An optional relay output adds a local limit alarm function.  
    $375$520
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    250T-RB, 350T-RB, 450T-RB Loop, DC, or AC-Power Transmitter

    • Platinum RTD or Copper RTD (resistance temperature sensor) Input
    • DC Voltage/Current Output
    $460$535
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Temperature Transmitters - Continued

What is a Temperature Transmitter For Signal Conditioning?

A temperature transmitter is an electrical instrument that interfaces a temperature sensor for example a thermocouple, RTD, or thermistor sensor to a measurement or control device like a PLC, DCS, PC, loop controller, data logger, display, recorder, etc.

Typically, temperature transmitters isolate, amplify, filter noise, linearize, and convert the input signal from the sensor then send or transmit a standardized output signal to the control device. Common electrical output signals used in manufacturing plants are 4-20mA or 0-10V DC ranges. For example, 4mA could represent 0°C and 20mA means 100°C. 

Temperature Transmitter Inputs

A thermocouple sensor is a pair of dissimilar metal wires joined at one end. The junction produces a low level voltage proportional to the difference in temperature between the open and closed ends. 

An RTD or Resistance Temperature Detector is a passive circuit element whose resistance increases with increasing temperature in a predictable manner.