New! 2 or 4-Wire USB-Configured Isolators and Transmitters

New! 2 or 4-Wire USB-Configured Isolators and Transmitters

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The TT230 and TT330 series of space-saving, 2 or 4-wire transmitters and isolators are offered for a range of inputs with sink/source 4-20mA output compatibility. Using isolation, these transmitters protect from surges, noise, and ground loop errors.

New! USB-Configured High-Density Ethernet I/O

New! USB-Configured High-Density Ethernet I/O

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The BusWorks XT series of Ethernet I/O modules support Modbus TCP/IP, Ethernet/IP, Profinet and i2o peer-to-peer communication protocols. They monitor and/or control up to 16 discrete or analog devices per unit with a variety of inputs and outputs supported.



2-Wire Loop-Powered Isolators

Models get power from the 4-20mA output or input loop (sinks or sources current). Typical uses are as a current repeater or to drive resistive loads

651T and 250T models are ideal for applications that require an isolator with a power supply in series with the output signal. Power is obtained from the output loop. The isolator must control current draw from the power supply in the output loop which is the 4-20mA signal. Since output and power share the same two wires, this type of isolator can be placed anywhere between the field sensing device and the PLC/DCS or monitoring device. Usually, the isolator is located close to the field device. Since both the input and output signal are 4-20mA, location of the device is not critical.

670T and 270i models are useful when adding and isolating a monitoring instrument to an existing current loop. When adding a field device such as a recorder or display, no additional power source is required for the added loop or for the isolator. The isolator's output is powered by the input loop power and drives passive loads only.

  • 1500 Series

    1500 Series 2-Wire Loop-Powered 4-20mA Isolators, Field-Mount

    See 151T Transmitters

  • Model Number

    Description

  • 151T

    Transmitter, Loop-Powered Universal Input (TC, RTD, mV, ohms) • Thermocouple (J, K, T, E, R, S, B, C, N, U), RTD (Pt, Cu, Ni), -15 to 115mV DC, 4 to 20mA DC, 0 to 500 ...

  • TT200 Series

    TT200 Series 2-Wire Loop-Powered 4-20mA Isolators, Rail-Mount
  • Model Number

    Description

  • TT236*

    Transmitter/Isolator, Current/Millivolt Input, Loop-Powered • Multi-range ±20mA or ±500mV input • 4-20mA ouput (sink/source) • 12-32 V ...

  • 600 Series

    600 Series 2-Wire Loop-Powered 4-20mA Isolators, DIN Rail-Mount
  • Model Number

    Description

  • 650T

    651T / 652T: Isolator, Single/Dual Channel • 4 to 20mA DC input • 4 to 20mA DC output • Output loop powered • Low cost isolator • Up to two ...
  • 670T

    671T / 672T / 674T: Isolator, Single/Dual/Quad Channel • 4 to 20mA DC input • 4 to 20mA DC output • Input loop powered • Low-cost ...

  • Flat Pack Series

    Flat Pack Series 2-Wire Loop-Powered 4-20mA Isolators, DIN Rail-Mount
  • Model Number

    Description

  • 250T-DC

    250T-DC: Transmitter, Output Loop Power • DC voltage or current input • DC voltage or DC current ouptut • Excellent accuracy and stability ensure ...
  • 270i

    270i: Isolator, Input Loop Power • 4-20mA DC input • 4-20mA DC output • 1500V AC peak isolation DC prevents ground loops   The 270i accepts a ...