Foxboro’s Optical Temperature Transmitter

Wednesday, November 2, 2016 @ 03:11 PM gHale


Schneider Electric launched Foxboro RTT15S Optical Temperature Transmitters, a new family of temperature transmitters that features a large, backlit LCD display with optical configuration buttons – operable through the glass cover of the unit’s explosion-proof housing – that enable users to configure and operate the transmitter even in hazardous locations without the need for process shutdown.

 Foxboro RTT15S family of temperature transmitters features a large, backlit LCD display with optical configuration buttons that enable users to locally configure and operate the transmitter even in hazardous locations without the need for process shutdown.

Foxboro RTT15S family of temperature transmitters features a large, backlit LCD display with optical configuration buttons that enable users to locally configure and operate the transmitter even in hazardous locations without the need for process shutdown.

Model RTT15S temperature transmitters are microprocessor controlled, use the HART version 5 or 7 communication protocols, and can receive input signals from thermocouples, resistance temperature detectors (RTDs), and ohm or millivolt sources.

Their microprocessor-based electronics minimize ambient temperature effects while delivering high accuracy, repeatability, and linearization of input signals. An advanced automatic calibration routine continuously checks zero and full-scale outputs of these transmitters against factory-calibrated voltage signals stored in non-volatile memory. If needed, adjustments can occur automatically without interrupting transmitter output signals.

In addition to three configuration buttons, the RTT15S optional LCD display has a selectable red or white backlight, five lines of text or symbols, configurable bar graphs, intuitive menus, and scrolling help text in seven major languages – English, German, Spanish, French, Italian, Swedish, and Danish. The configurable backlight can end up programmed to change colors or flash upon diagnostic error detection. In applications where the optional LCD display and explosion-proof housing are not required, the RTT15S is available as a basic module that can end up configured remotely using PC-based Device Type Manager (DTM) software or a handheld controller.

Other user-configurable features on the RTT15S family include low and high out-of-range values (between 3.5 and 23 mA); sensor error detection, with output values based on shorted and open sensor conditions; and direct selection of error detection using NAMUR 43 values. These features, together with a range of transmitter packages, high-durability sensors, and other options, make the RTT15S easy to mount, install, configure, and operate reliably for a long life.



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