RTD Input Four-Wire Dual Transmitter DT335

The DT330 series signal conditioners provide two independent I/o channels in one unit.

The DT335 model is a 4 wire dual transmitter. It isolates and converts RTD or linear resistance sensor inputs to a proportional 4-20mA control signal. Each channel supports DC current or voltage output. Optional DIN Rail bus delivers primary or redundant power to multiple units

The Acromag DT335 is a RTD Input Four-Wire Dual Transmitter.

Firstly, it contains dual channels and accepts RTD (Pt, Ni, Cu) at 0-4500 ohm inputs. Providing 0-20 mA or ±10V Outputs using 6-32V DC local/bus power.

Secondly, the high voltage isolation separates all input and output circuits from each other. Therefore, the isolation protects from surges, reduces noise and eliminates group loop errors. However, to prevent group loop error between a grounded PC and a grounded input signal, Acromag recommends use of a USB isolator. Setup and calibration is easy. It has a convenient USB connection to your PC and Acromag’s Windows configuration software. Or it can be set up with Android App and your mobile devices.

Finally, with advanced signal processing capabilities, variable input/output range and USB programming make this instrument versatile. It can withstand harsh industrial environments and operate across a wide temperature range with very low drift.  Also it features RFI, EMI, ESD, EFT and surge protection as well as low radiated emissions.

Other features of the RTD Input Four-Wire Dual Transmitter DT335 include:

  • Operate as a dual transmitter, a single transmitter, or a signal splitter
  • Easy configuration via USB with Windows software or Agility™ app for Android
  • Independently adjustable and scalable input and output ranges
  • Also selectable RTD and linear resistance input types: Pt 100/200/500Ω, Ni 120Ω, Cu 10Ω, 0-4500Ω
  • Supports 2, 3, and 4-wire sensor connections
  • Selectable current and voltage output ranges: 0-20mA, 4-20mA, ±5V, ±10V, 0-5V, 0-10V DC
  • High accuracy, linearity, stability, and reliability
  • User-selectable filtering (none, low, med., high)
  • Selectable up/downscale break detection
  • As well as bus power, local power, or both (redundancy)
  • Space-saving 17.5mm unit with pluggable terminals for convenient wiring
  • 1500V input isolation, 5-way, (power/input/output)
  • Wide ambient operation (-40 to 70°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX/IECEx Zone 2


Finally, for more information, contact us.


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