What is it?
The SST52 is a SMART temperature transmitter that uses a microprocessor to convert temperature readings from a Pt100 (3-wire) resistance thermometer into a standard 4–20 mA signal with HART® communication. It includes local configuration via four pushbuttons and an LCD display for direct reading.
Where is it used?
The SST52 is designed for industrial temperature measurement in applications involving liquids, gases, or steam. It is suitable for chemical processes, energy plants, pipelines, and environments requiring intrinsically safe instrumentation, including ATEX zones 0, 1, and 2. It can be installed locally or remotely using a thermowell or extension probe.
How does it work?
A Pt100 temperature sensor detects the process temperature. This value is sent to the transmitter’s Spriano measuring cell, which converts it into a digital reading. The microprocessor then produces a 4–20 mA output signal and HART® data. The SST52 also provides automatic temperature compensation, adjustable damping, configurable range settings, and local or remote setup. The LCD screen displays the current temperature.
What problems does it solve?
The SST52 provides a stable and accurate temperature measurement without the drift or manual recalibration issues common in older analog systems. It improves installation and maintenance through remote HART configuration and local pushbutton adjustments. Its robust construction (IP66 housing) and intrinsic-safety certification make it suitable for harsh or hazardous environments, ensuring reliable performance even under extreme temperatures and high humidity.
