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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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    ST133: Isolated Transmitter; Thermocouple/mV Input

    • TC type J, K, T, R, S, E, B, and N or ±100mV input
    • 1500V isolation
    • 4 to 20mA DC output
    • USB-configured
    The ST133 is a low-cost two-wire transmitter that isolates and converts a millivolt or thermocouple sensor input to a proportional 4-20mA control signal. Power is received from the output loop current. The transmitter performs signal linearization, cold-junction compensation, and lead-break detection functions.    
    Select options This product has multiple variants. The options may be chosen on the product page
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    ST13C-SIP

    • Configuration software
    • USB isolator
    • Two USB cables
    • One kit recommended per customer
       
    Select options This product has multiple variants. The options may be chosen on the product page
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    TT234: Potentiometer / Thermistor Input, Two-Wire Transmitter

    • Potentometer / slidewire, thermister input
    • 4 to 20mA output (sink / source)
    • 12-32V DC loop / local power
    • USB configuration
    The TT234 model is a space-saving two-wire transmitter that isolates and converts a resistive sensor input to a proportional 4-20mA signal. Power is received from the output loop current or a DC supply when using a three-wire connection. Click here to watch a short AcroMaggie video highlighting the TT230 Series.
    Select options This product has multiple variants. The options may be chosen on the product page
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    TT235: Isolated RTD Input, Loop Power, 2-Wire Transmitter

    • Selectable RTD or linear resistance input type or 0-500 ohm input
    • 4-20mA output (sink/source)
    • 12-32V DC loop/local power
    • USB configuration
    The TT235 model is a space-saving two-wire transmitter that isolates and converts an RTD sensor input to a proportional 4-20mA signal. Power is received from the output loop current or a DC supply when using a three-wire connection. Click here to watch a short AcroMaggie video highlighting the TT230 Series.
    Select options This product has multiple variants. The options may be chosen on the product page
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    TT334: Potentiometer / Thermistor Input, Four-Wire Transmitter

    • Potentiometer / slidewire input
    • Universal current/voltage output
    • 12-32V DC local/bus power
    • USB configuration
    The TT334 model is a space-saving four-wire transmitter that isolates and converts a resistive sensor input to a proportional control signal. DC current and voltage output are both supported on a single model. Click here to watch a short video highlighting the TT330 Series.
    Select options This product has multiple variants. The options may be chosen on the product page
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    TT335: Isolated RTD Input, DC Local/Bus Power Transmitter

    • Selectable RTD or linear resistance input type or 0-500 ohm input
    • Universal output (source)
    • 12-32V DC local/bus power
    • USB configuration
    The TT335 model is a space-saving four-wire transmitter that isolates and converts an RTD sensor input to a proportional control signal. DC current and voltage output are both supported on a single model. Click here to watch a short video highlighting the TT330 Series.  
    Select options This product has multiple variants. The options may be chosen on the product page
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    TTC-SIP: Software

    • Software Interface Package for Acromag DT, ST, TT Series Transmitters and SP, uBSP Series Signal Splitters.
    • Includes configuration sofware CD-ROM (5040-xxx), isolator (USB-ISOLATOR) and two USB cable (4001-112, 4001-113) (Recommend one kit per customer.)
    • Easy setup and digital calibration via USB with Windows configuration software.
    • Download the configuration software only - from the Software Tab
    Select options This product has multiple variants. The options may be chosen on the product page
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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
    Select options This product has multiple variants. The options may be chosen on the product page
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    250T-TC, 350T-TC, 450T-TC Loop, DC, or AC-Power Transmitter

    • J, K, T, E, R, S, B Thermocouple Input
    • DC Voltage or DC Current Output
    These models convert sensor inputs to proportional process current or voltage output signals. Excellent accuracy and stability ensure reliable measurements in harsh industrial environments.    
    Select options This product has multiple variants. The options may be chosen on the product page

Temperature Transmitters - Continued

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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.

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