4-20mA Signal Isolator TT236

Model TT236 is a two-wire signal isolator that isolates and converts a DC current or low voltage input to a proportional 4-20mA control signal. It supports both voltage and current input. Power is received from the output loop current or a DC supply when using a three-wire connection.

  • Multi-range ±20mA or ±500mV input
  • 4-20mA output (sink/source)
  • 12-32 V DC loop/local power

The Acromag Model TT236 is a 4-20mA Signal Isolator is a two-wire transmitter. It isolates and converts a DC current or low voltage input into a proportional 4-20mA control signal.  Additionally, a single unit supports both voltage and current input for extra flexibility. Furthermore, power comes from the output loop current or a DC supply when using a three-wire connection.

Firstly, high-voltage isolation separates the input from the output circuit. Plus, the isolation protects from surges, reduces noise, and eliminates ground loop errors. Set-up and calibration are also fast and easy.  For example,  a USB connection on your PC and Acromag’s Windows configuration software is all you need for set up.

Finally, The TT236 is a versatile temperature measurement device. This is a result of its advanced signal processing capabilities, variable range input, and convenient USB programming.  This signal isolator is also withstands harsh industrial environments and operates reliably across a wide temperature range with very low drift. It also features RFI, EMI, ESD, EFT, and surge protection plus low radiated emissions.

IMPORTANT: To prevent damage or errors from grounded PCs and surges Acromag strongly recommends using their USB-ISOLATOR when configuring a TT230 Series transmitter.

Other features of TT236 4-20mA Signal Isolator include:

  • Single unit supports unipolar and bipolar input ranges up to ±20mA or ±500mV DC
  • Accepts 0-20A AC input (with external sensor)
  • Space-saving 12.5mm unit with pluggable terminals for convenient wiring
  • High accuracy, linearity, stability, and reliability
  • User-selectable filtering (low, medium, high)
  • Supports sink or source output wiring
  • Supports reverse-acting (inverse) output
  • Selectable upscale or downscale operation for sensor errors and lead-break detection
  • 1500V input isolation
  • NAMUR-compliant output loop current
  • Shock (50g) and vibration (5g) resistant
  • Mounts on Type T DIN-rail
  • Wide ambient operation (-40 to 80°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals

 

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TT236-Current-milliVolt-Input-2-wire-Transmitter