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4-20mA Signal Splitters: 2-Wire Loop-Powered and 4-Wire AC/DC-Powered

Signal splitters receive 4-20mA process current inputs and provide two identical isolated 4-20mA output signals. Each channel operates independently and is isolated from the others to prevent interaction between channels. Galvanic isolation eliminates ground loops, reduces noise, and blocks transient signals. Acromag splitters are available in modular, 2-wire loop-powered and 4-wire AC/DC-powered models.

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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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    SP333: Four-Wire Thermocouple / milliVolt Splitter

    • Universal thermocouple or ±100mV input
    • 0-20mA, ±10V or 0-10V outputs
    • 6-32V DC external power
    The SP333 is a high-performance signal splitter that converts one millivolt or thermocouple input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP336: Four-Wire Current / milliVolt Signal Splitter

    • DC current and low voltage input
    • 0-20mA, ±10V outputs
    • 6-32V DC external power
    The SP336 is a high-performance signal splitter that converts one DC current or millivolt input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Power connects on a terminal block, a rail bus, or both for redundancy. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP337: Four-wire Process Voltage Input Signal Splitter

    • Multi-range ±1V, ±5V, or ±10V input
    • 0-20mA, ±10V or 0-10V outputs
    • 6-32V DC external power
    The SP337 is a high-performance signal splitter that converts one process-level DC voltage input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP338: Four-Wire High Voltage Input Signal Splitter

    • Multi-range ±15, ±75, or ±150V input
    • 0-20mA, ±10V or 0-10V outputs
    • 6-32V DC external power
    The SP338 is a high-performance signal splitter that converts one high-level DC voltage input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Click here to watch a short video highlighting the features of the Acromag SP Series.
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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
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2-Wire Loop-Powered & 4-Wire AC/DC-Powered Splitters Continued

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Acromag 4-20mA Signal Splitters are available in 2-wire loop-powered and 4-wire AC/DC-powered models. The loop-powered model runs on 12-50 VDC power from the output loop, has a built-in isolated excitation supply with short circuit protection, and can drive up to two field 2-wire process loops. The AC/DC-powered unit runs on 5-36 VDC SELV or 90-250 VAC with a low input burden that keeps voltage drop to less than 1.5 V for full-scale current and support wide 0 to 1000 ohm load range with no trimming required if the load varies. Current limiting safely limits output to 27 mA. The splitters are DIN-rail mountable and feature removable terminal blocks. Both units feature pluggable terminals, zero/span trim pots and power LEDs that make installation, maintenance, and long term service easy.

Signal Conditioning Whitepapers

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

Top 3 Best Practices for Grounding Your Electrical Equipment White Papers:

  1. Circuit grounding and Why it's Important
  2. How Ground Fault Circuit Interrupters Work & Protect Us from Shock
  3. Ground as a Voltage Stabilizer & Transient Limiter