Thermocouple transmitters convert Type J, K, T, E, R, S, B, or N thermocouple sensor input signals to 4-20mA or 0-10V DC outputs for interfacing to controllers or other instrumentation.

Showing all 11 results

  • Compare

    DT233: Thermocouple/milliVolt Input Two-wire Dual Transmitter

    • Dual channels
    • Universal thermocouple, mV input
    • 4-20mA outputs (sink/source)
    • 7-32V DC loop/local
    The DT233 model is a dual two-wire transmitter that isolates and converts millivolt or thermocouple sensor inputs to proportional 4-20mA control signals. Power is received from the output loop current.
    Read more
  • Compare

    DT333: Thermocouple/milliVolt Input Four-wire Dual Transmitter

    • Dual channels
    • Universal thermocouple, mV inputs
    • Isolated current or voltage outputs
    • 6-32V DC local/bus power
    The DT333 model is a four-wire dual transmitter that isolates and converts millivolt or thermocouple sensor inputs to proportional control signals. Each channel supports DC current or voltage output.
    $370
    Select options
  • Compare

    TT233: Thermocouple/Millivolt Input Two/Three-Wire Transmitter

    • Universal TC type J, K, T, R, S, E, B, N or ±100mV input
    • 4-20mA ouput (sink/source)
    • 12-32 V DC loop/local power
    The TT233 model is a space-saving 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 or a DC supply when using a three-wire connection.
    $195
    Select options
  • Compare

    TT333: Thermocouple/milliVolt Input Four-wire Transmitter

    • Universal thermocouple / millivolt input
    • Universal current / voltage output
    • 12-32V DC local / bus power
    The TT333 model is a space-saving four-wire transmitter that isolates and converts a millivolt or thermocouple sensor input to a proportional control signal. DC current and voltage output are both supported on a single model.
    $265
    Select options
  • Compare

    VPM3000 Series: Universal Transmitter / Alarm with Display

    • Big, bright display
    • 4-20mA, ±10V, thermocouple, or RTD input
    • 4-20mA, Modbus serial, or alarm relay output options
    Acromag VPM3000 Vertu™ digital panel meters are among the most versatile on the market and able to operate as a transmitter and/or alarm to satisfy a wide variety of process and temperature applications.
    $345$545
    Select options
  • Compare

    655T, 656T: Single or Dual Channel, Thermocouple/milliVolt Input, Loop-powered Transmitter

    • TC (types J, K T, R, S, E, B, N), ±1V DC, selectable range/type input
    • 4 to 20mA DC output
    • 12-50V DC from output loop power
    • DIP-switch configuration, signal linearizer, push-button calibration
    $285$510
    Read more
  • Compare

    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
    Read more
  • Compare

    ST132: Thermocouple/milliVolt Input Head-mount Transmitter

    • Universal thermocouple (8 types) or ±100mV input
    • 4-20mA output
    • Loop-powered, 7-32V DC
    $140
    Select options
  • Compare

    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
    $165
    Select options
  • Compare

    uB37, uB47: Thermocouple Field Input Module

    • Bluetooth® wireless configuration option
    • Thermocouple field input
    • Voltage host output
    $120$240
    Select options
  • Compare

    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
    $465$545
    Select options

Thermocouple Temperature Transmitters

Important Thermocouple Information

The most important thing to remember about the TC is it that it’s the temperature difference between ends that produces the charge imbalance that drives the small voltages, not the junction of the two dissimilar metals that form the thermocouple circuit.

While you can form your own TC circuit with different combinations of two conductors, standard TC types using specific metals and alloys are available that produce larger, stable, and predictable output voltages relative to applied thermal gradients. These standard types have their voltage over temperature tabulated in TC type tables relative to a cold junction at 0°C and 0.000mV.

These TC voltages could have been referenced to another temperature than 0°C, but 0°C was chosen because it is easily reproducible within ±0.2°C using a mixture or slurry of ice and water. By holding the cold junction at 0°C, the temperature of the other end directly corresponds to its thermoelectric voltage found by look-up in the standard TC type table.

If you'd like to discuss Acromag's thermocouple solutions with a sales engineer please call or complete the form below for a call back.

  • This field is for validation purposes and should be left unchanged.