Siemens SITRANS TF320/420 Field Transmitter


  • High availability during measuring
  • High reliability and long-term stability
  • Prevention of production downtime due to measuring failures
  • Best cost-benefit-ratio for the plant management
  • Cost reduction due to  predictive maintenance
  • High sensor accuracy
  • NE107 conform diagnostic alarms
  • SIL 2/3 certification
  • Extended temperature range up to -50°C

Siemens SITRANS TF320/420 Field Transmitter is compatible with standard resistance thermometers and thermocouples and can also handle resistance-type sensors and millivolt signals. Configuration can be accomplished conveniently and swiftly through SIMATIC PDM, a handheld communicator, or the optional display with push buttons. Both temperature transmitters, SITRANS TF320 and TF420, are synonymous with reliability, precision, and durability.


Input Resistance thermometers, thermocouples, resistors, potentiometers, DC voltage sources
Display with push buttons Rotatable in 90° steps
Output 4…20mA (SITRANS TF320), HART 7 (SITRANS TF320/420)
Material Aluminum
Stainless steel CF3M/1.4409 similar to 316L (dual chamber enclosure)


Siemens SITRANS TF320-TF420 Field Transmitter_DpstarGroup