Potentiometer / Thermistor Input Transmitter TT234

The TT234 models is two-wire transmitters that isolates and converts a resistive 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 Acromag TT234 is a Potentiometer / Thermistor Input Transmitter.

Firstly, with a USB configuration, it isolates and converts Potentiometer / Slidewire Thermistor Inputs to a 4 to 20mA output. Power is received from the output loop current or a DC supply when using a three wire connection. The transmitter provides sensor excitation plus performs linearisation, lead wire compensation and lead break detection.

Secondly, Setup and calibration are fast and easy with a convenient USB connection to your PC and Acromag’s Windows configuration software. A USB Isolator for calibration.

Thirdly, advanced signal processing capabilities, variable range input, and convenient USB programming make this instrument a very versatile temperature measurement device. These transmitters can withstand harsh industrial environments and operate reliably across a wide temperature range with very low drift. They feature RFI, EMI, ESD, EFT, and surge protection plus low radiated emissions.

Features of the Potentiometer / Thermistor Input Transmitter TT234 includes:

  • Easy setup and digital calibration via USB with Windows configuration software
  • Interfaces 100-100kΩ potentiometer/slidewire and 100-1MΩ NTC thermistor/thermostat inputs
  • Customisable thermistor linearization table with preset curves for popular resistances
  • 1500V isolation between input/output circuits
  • Space-saving 12.5mm unit with pluggable terminals for convenient wiring
  • High accuracy, linearity, stability, and reliability
  • Supports normal or reverse-acting output
  • Supports sink or source output wiring
  • User-selectable filtering (none, low, med., high)
  • Fast response (as low as 11ms)
  • Selectable upscale or downscale operation for sensor errors and lead-break detection
  • NAMUR-compliant output loop current
  • Shock (25g) and vibration (4g) resistant
  • Wide ambient operation (-40 to 80°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals



Contact us for more information.


There are no reviews yet.

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