Acromag remote I/O modules feature signal conditioners and network I/O  for a broad range of monitoring and control operations where controllers communicate with instrumentation on the plant floor or in the field. Signal Conditioners include signal transmitters, signal isolators, 4-20mA signal splitters, limit alarms and computation modules. These signal conditioners input voltage, current, thermocouple, RTD, frequency, thermistor, load cell, potentiometer, and discrete sensors. These signal conditioners output DC voltage and current, relay, frequency, pulse width modulation and display/readout. Ethernet remote I/O modules communicate via Ethernet/IP, Modbus TCP/IP, Modbus UDP/IP, and Profinet.  

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    801A Universal TC/RTD/mV Input Intelligent Alarm

    • Thermocouple (J, K, T, R, S, E, B, N), RTD (Pt, Ni, Cu), millivolt (±100mV DC), resistance (0 to 500 ohms) input
    • Single or dual mechanical relay alarm outputs
    • 10-36V DC power
    • Software configured
    • Multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection)
    • On/off controller capability
             
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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
       
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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
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    822A Dual Thermocouple/mV Input Intelligent Alarm

    • 2 input channels, thermocouple (types J, K, T, R, S, E, B, N), or millivolt (±100mV DC) input
    • Dual mechanical relays output
    • 10-36V DC power
    • Software configured; multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection); on/off controller capability
       
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    832A Dual RTD Input Intelligent Alarm

    • 2 input channels, RTD (Pt, Ni, Cu) input
    • Dual mechanical relay outputs
    • 10-36V DC power
    • Software configured; multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection); on/off controller capability
         
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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
     
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    892M, 894M: DC Voltage/Current Output Math Module

    • 2 or 4 input channels, 0 to 20mA DC, 0 to 10V DC (selectable ranges)
    • 0 to 20mA DC, 0 to 10V DC (selectable ranges) output
    • 10-36V DC power
    • Software configured, computes arithmetic operations, evaluates conditional and Boolean arguments, executes track & hold functions
     
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    895M, 896M: DC Input, Frequency Output Math Module

    • 0 to 20mA DC, 0 to 10V DC (selectable ranges), 896M 2 channels input
    • 0 to 10KHz, 0 to 36,000 counts/hr Frequency output, 896M 2 channels
    • Solid-state relay (60V DC @ 500mA) control output
    • 10-36V DC power
    • Software configured, ideal for integrator/totalizer applications, computes arithmetic operations, conditional arguments, track & hold functions
     
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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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Signal Conditioning Selection Guide Videos

Welcome to our Signal Conditioning Selection Guide Videos. As a business with many helpful products to offer, we know it can be difficult to find which one you need. This quick selection guide should help point you in the right direction. Choose which video corresponds to your power needs, and the guide will show you which Acromag modules will work with your input.

Learn more in this whitepaper: What is Ethernet/IP?

Output Loop Powered Transmitters Video

DC Powered Transmitters Options Video

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Alarms