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sitrans th400SITRANS TH400

Fieldbus enabled


SITRANS TH400 is available either with PROFIBUS PA or FOUNDATION Fieldbus (FF). It is designed to support all common RTD, thermocouple, resistance and millivolt sensors. Setup is quick and easy with SIMATIC PDM(PA) or AMS and handheld communicator(FF). Due to its small size, the device allows flexible mounting options, even in a DIN Type B connection head.


Input Resistance thermometers, Thermocouples, Resistance-type sensors, DC sources
Output PROFIBUS PA (variant), Foundation Fieldbus (variant)


  • Linearization of the sensor values
  • High accuracy across entire ambient temperature range
  • Reduces plant noise
  • Alarm signal for sensor break or short-circuit
  • Electromagnetic compatibility (EMC) according DIN EN 61326 and NE21
  • Saves expensive compensation cables with internal reference junction
  • Galvanic isolation for accuracy and safety in thermocouple applications
  • Single- or dual-point trim
  • Custom characteristic curve for application of non-standard sensors
  • Difference- and average-measurement
  • Measuring value of second sensor for redundancy
  • Extensive diagnostics
  • Simulation mode
  • Explosion-protection for US, Canada and Europe
  • Rugged design, fully potted electronics