Siemens SITRANS TR300 Rail Transmitter


  • Measures temperature with a linear output signal
  • Consistent performance – High accuracy across entire ambient temperature range
  • Reduces plant noise
  • Alarm signal for sensor break or short-circuit according NAMUR 43
  • Electromagnetic compatibility (EMC) according DIN EN 61326 and NE21
  • Galvanic insulation 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
  • Extensive diagnosis: e.g. drag indicator and time meter
  • Set of output current for simulation
  • Explosion protected versions for Europe
  • Rugged design, potted electronics, Explosion protected versions for Europe

Siemens SITRANS TR300 Rail Transmitter equipped with HART protocol, is compatible with standard resistance thermometers, thermocouples, and proficient at evaluating resistance sensors and MV signals. Configuration is straightforward and fast, whether through SIMATIC PDM or a handheld device. This instrument is designed with user-friendliness in mind, allowing you to directly and continuously read the 4-20mA loop value with a multimeter without disrupting the signal.


Input Resistance thermometers, thermocouples, resistance-type sensors, DC sources
Output 4 … 20 mA, HART
Ambient temperature -40 … +85 °C (-40 …185 °F)
Approvals ATEX
Certificates EAC Ex (GOST), NEPSI


Siemens SITRANS TR300 Rail Transmitter_DpstarGroup