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Signal Converters and Process Transmitters

Process signal transmitters and signal converters isolate, filter, amplify, and convert sensor signals to 4-20mA current or 0-10V signals for interfacing with controllers and other instrumentation. Select from 2-wire loop-powered 4-20mA transmitters, or 4-wire AC/DC-powered transmitters. Acromag offers 3- and 4-wire models with 4-20mA transmitters or voltage transmitters. DIN-rail and field-mount versions are available. Process transmitter configuration is easy with Windows® software, Agility® mobile app pushbuttons, switches, or pots for span/zero settings, depending on the series.

Showing 17–32 of 34 results

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    811A, 812A: Intelligent Alarm; DC Voltage/Current Input

    • ±100V or 0 to 22mA DC input ranges or 2 input channels, ±100V or 0 to 22mA DC input ranges (AC current with optional sensor)
    • Single or dual mechanical relays
    • 10-36V DC power
    • Software configured; multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection); on/off controller capability
    IntelliPack alarms compare inputs against user-defined limit set-points to control built-in relays.  
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    811T: DC Voltage/Current Input Intelligent Transmitter

    • ±100V or 0 to 22mA DC input ranges (AC current with optional sensor)
    • 0 to 20mA DC, 0 to 10V DC output
    • Mechanical relay alarm (25V @ 5A)
    • 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.
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    841T: DC Frequency/Pulse Input Intelligent Transmitter

    • 0 to 50KHz, 0 to 65535 pulses input
    • 0 to 20mA DC, 0 to 10V DC output
    • Mechanical alarm relay (25V @ 5A)
    • 10-36V DC power
    • Software configured; pulse counter; signal averaging; 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.
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    Agility™ Config Tool (Tethered)

    • Tethered Agility™ Config Tool mobile application
    • For Acromag SP Series Signal Splitters and most TT Series Transmitters
    • Download available on Google Play for free.
    • Download Windows configuration software from the software tab below.
    Read more
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    DT337: Medium DC Voltage Input Four-Wire Dual Transmitter

    • Dual channels
    • ±1V, ±10V inputs
    • 0-20mA, ±10V outputs
    • 6-32V DC local/bus power
    The DT337 model is a four-wire dual transmitter that isolates and converts process-level DC voltage inputs to proportional control signals. Each channel supports DC current or voltage output.

    Click here to watch a short video highlighting the features of the DT337.

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    DT338: High DC Voltage Input Four-Wire Dual Transmitter

    • Dual channels
    • ±15V, ±150V inputs
    • 0-20mA, ±10V outputs
    • 6-32V DC local/bus power
    The DT338 model is a four-wire dual transmitter that isolates and converts high-level DC voltage inputs to proportional control signals. Each channel supports DC current or voltage output. Click here to watch a short video highlighting the features of the DT338.
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    ST131: Transmitter, RTD Input, Loop-Powered

    • 100 ohm Pt RTD or 0-900 ohm input
    • 4 to 20mA DC output
    • 9-32V DC from output loop power
    • USB-configured
    The ST131 is a low-cost two-wire transmitter that converts a 100 ohm Platinum RTD sensor input to a proportional 4-20mA signal. Power is received from the output loop current.
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    ST132: Thermocouple/milliVolt Input Head-mount Transmitter

    • Universal thermocouple (8 types) or ±100mV input
    • 4-20mA output
    • Loop-powered, 7-32V DC
    The ST132 is a low-cost two-wire transmitter that 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.  
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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.    
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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.
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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
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    TT237: Voltage Input, Loop-Power, 2-Wire Transmitter

    • Multi-range ±1V, ±5V or ±10V input
    • 4-20mA output (sink/source)
    • 12-32 V loop power
    The TT237 model is a space-saving two-wire transmitter that isolates and converts a process level DC voltage input to a proportional 4-20mA control signal. A single unit supports multiple voltage input ranges for extra flexibility. Power is received from the output loop current or a local DC supply when using a three-wire connection. Click here to watch a short AcroMaggie video highlighting the TT230 Series.
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    TT238: High Voltage Input, Loop-Powered, 2-Wire Transmitter

    • Multi-range ±15V, ±75V or ±150V DC input
    • 4-20mA ouput (sink/source)
    • 12-32 V DC loop power
    The TT238 model is a space-saving two-wire transmitter that isolates and converts a high level DC voltage input to a proportional 4-20mA control signal. A single unit supports multiple voltage input ranges for extra flexibility. Power is received from the output loop current or a local DC supply when using a three-wire connection. Click here to watch a short AcroMaggie video highlighting the TT230 Series.
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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.
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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
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    TT337: Voltage Input, DC Power Transmitter

    • Multi-range ±1V, ±5V or ±10V input
    • Universal current/voltage output
    • 12-32V DC
    • 12-32V DC local/bus power
    The TT337 model is a space-saving four-wire transmitter that isolates and converts a process level DC voltage input to a proportional control signal. Click here to watch a short video highlighting the TT330 Series.
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Signal Conditioners, Transmitters and Converters Continued

Green Separator Line

Acromag high-performance signal conditioner products include process transmitters, 4-20mA signal isolators, limit alarms, signal splitters, and math computation modules. These products isolate, amplify, filter, condition, and convert measured signals from sensors and other instruments. The enhanced signal is ready for interfacing to your PLC, DCS, display, recorder, or other process control instrumentation.

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.

See all signal conditioners and transmitters to choose the best solution for your application.

Signal Conditioning Functions:

  • Signal converter, linearizer, averager
  • Integrator, totalizer
  • Pulse counter, frequency measurement
  • Arithmetic calculation, Boolean logic
  • Limit alarm relay trip, window range, deviation, rate-of-change, peak/valley detection

Learn More About Transmitters

As your I/O experts, Acromag is here to help! Below are our most popular whitepapers related to our Signal Conditioning products. Find more application notes, white papers and support here: https://www.acromag.com/support/

  • Best Whitepapers About Transmitters

Best Whitepapers About Transmitters: