Acromag remote I/O modules feature signal conditioners and network I/OÂ 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.
TT236: Current / milliVolt Input Two-Wire Transmitter
Multi-range ±20mA or ±500mV input
4-20mA ouput (sink/source)
12-32 V DC loop/local power
The TT236 model is a space-saving two-wire transmitter that isolates and converts a DC current or low voltage input to a proportional 4-20mA control signal. A single unit supports both voltage and current input for extra flexibility. 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.
TT239: Frequency / Pulse / PWM Input, 12-32V DC Loop Power, 2-Wire Transmitter
Multi-range 0Hz to 100KHz frequency input
Multi-range 0Hz to 3KHz PWM input
4-20mA output (sink/source)
12-32V DC power
The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle. 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.
TT339: Frequency / Pulse Input, 12-32V DC Local/Bus Power Transmitter
Multi-range 0Hz to 100KHz input
Universal current/voltage output
12-32V DC local/bus power
The TT339 model is a space-saving four-wire transmitter that isolates and converts a frequency or pulse input to a proportional control signal. DC current and voltage output are both supported on a single model. An optional DIN rail bus can deliver primary or redundant power to multiple units without wiring.
Click here to watch a short video highlighting the TT330 Series.
DT236: Current / milliVolt Input Two-Wire Dual Transmitter
 Dual channels
 ±20mA, ±500mV inputs
4-20mA outputs (sink/source)
7-32V DC loop power
The DT236 model is a dual two-wire transmitter that isolates and converts DC current or low voltage inputs to proportional 4-20mA control signals. Power is received from the output loop current or a DC supply when using a three-wire connection.
Click here to watch a short video highlighting the features of the DT236.
NT2620: Ethernet RTD/Resistance Input Modules with Discrete I/O
4 RTD/resistance inputs
2 discrete I/O
Ethernet I/O plus Expansion I/O
Multi-protocol support
NT2620 modules offer 4 RTD/resistance inputs and 2 bidirectional discrete digital I/O channels. Each input can support RTD or resistance sensor types. NTE Ethernet models provide a network interface to monitor temperature levels.
Click here to watch a short video highlighting the benefits of the NT1620.
VPM2000 Series: Loop-Powered Isolator / Alarm with Display
Loop-powered Process Meter
4-20mA input/output
Solid-state relays
Non-incendive, intrinsically safe
These loop-powered 1/8 DIN digital panel meters provide a convenient and informative display of any 4-20mA signal. A dual line display shows the process value on the top line and the units or a tag on the bottom line. Alternatively, you can display the input in one scale on the top line (e.g. height) and another scale on the bottom (e.g. volume).
Click here to watch a short video highlighting the VPM2000 Series.
These units receive 4-20mA process current inputs and provide isolated 4-20mA output signals. Each channel operates independently and is isolated from the others to prevent interaction between channels.
These units receive 4-20mA process current inputs and provide isolated 4-20mA output signals. Power is derived from the input signal current. Each channel operates independently and is isolated from the others to prevent interaction between channels.
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.
i2o peer-to-peer available for Modbus TCP/IP 6-channel only
These modules provide an isolated Ethernet network interface for up to six input channels. Differential inputs eliminate ground noise and each terminal block includes a cold junction compensation (CJC) sensor for more precise temperature measurements. Multi-range inputs accept signals from a variety of sensors and devices. High-resolution, low noise, A/D converters deliver high accuracy and reliability.
i2o peer-to-peer available for Modbus TCP/IP 6-channel only
These modules provide an isolated Ethernet network interface for up to six input channels. Multi-range inputs accept signals from a variety of sensors and devices. High-resolution, low noise, A/D converters deliver high accuracy and reliability. Three-way isolation further improves the system performance.
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.