Loop Power RTD 2-Wire Transmitter TT235

This space saving transmitter isolates and converts a RTD sensor input to a proportional 4-20mA signal. Power is received from the output loop current or a DC supply when using a three wire connection.

The transmitter provides sensor excitation and include linearisation, lead wire compensation and lead break detection functions

The Acromag TT235 is a loop power RTD Input 2-Wire Transmitter.

Firstly, it accepts selectable RTD or linear resistance input type or 0-500 ohm inputs. Producing 4 to 20 mA proportional output using 12-32V DC from local/loop power. It is also USB configured.

Secondly, setup and calibration are fast and easy. Simply by using the USB Connection to your PC and Acromag’s Windows configuration software. This temperature instrument is versatile with its advanced signal processing capabilities, variable range input and convenient USB programming. Therefore, designed to withstand harsh industrial environments and operate across a wide temperature range with low drift. It features RFI, EMI, ESD, EFT and surge protection plus low radiated emissions. In order to prevent damage or errors from grounded PCs and surges, Acromag strong recommends use of a USB Isolator when configuring the TT230 Series transmitter.

Other features of the Loop Power RTD 2-Wire Transmitter TT235 include:

  • Easy setup and digital calibration via USB with Windows configuration software
  • Selectable RTD or linear resistance input type: Pt RTD (100Ω, 200Ω, 500Ω, or 1000Ω), Ni RTD (120Ω), Cu RTD (10Ω), or Resistance (0-450Ω)
  • 1500V isolation between input/output circuits
  • Space-saving 12.5mm unit with pluggable terminals for convenient wiring
  • Also high accuracy, linearity, stability, and reliability
  • Supports normal or reverse-acting output
  • Supports sink or source output wiring
  • As well as user-selectable filtering (none, low, med., high)
  • Fast response (as low as 22ms) S
  • electable upscale or downscale operation for sensor errors and lead-break detection
  • NAMUR-compliant output loop current
  • Shock (25g) and vibration (4g) resistant
  • As well as a wide ambient operation (-40 to 80°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals


Finally, for more information, contact us.


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.