Siemens Automation and Drives (A&D) has developed two new temperature
transmitters, which use a two-wire system and are designed for rail
mounting: the Sitrans TR200 and Sitrans TR300. Sitrans TR200 is configured using a PC, whereas Sitrans TR300 can be parameterized
via a Hart interface. Both devices feature a diagnostics LED, which indicates the function status. In this way, open circuits or short circuits can be quickly detected and corrected especially in the case of a large number of measuring points. The temperature transmitters have a measuring input for resistance thermometers or thermocouple elements and, in addition, can evaluate resistance-based sensors
and millivolt signals. The new transmitters are thus suitable for universal use in all sectors. The mounting rail system also offers the advantage that the measuring points can be set up centrally away from
any harsh environmental conditions. The devices are thus simple to access and can be easily protected against heat and vibration.
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