Optitemp TT 51 temperature transmitter from Krohne is especially designed for use in the chemical industry. In keeping with industry requirements, the transmitter guarantees accurate measurements over the long term and superior reliability. For use in safety-related applications, the Optitemp TT 51 features SIL2 approval as per IEC 61508. It also features an electronic system that boasts a long-term measuring error of just 0.05 % of the span. SmartSense insulation monitoring allows to detect moisture in the measuring insert. If the measuring insert (and the sensor element) absorbs moisture, the electrical isolation resistance immediately decreases, resulting in a measurement error. A second, redundant sensor can be connected to the Optitemp TT 51 transmitter by way of a dual input. In addition to the isolation monitoring of both sensors, measurement errors between the sensors can be detected via the integrated sensor drift detection feature. The transmitter is either mounted directly to the measuring insert (head-mounted transmitter) or it is installed separately in a control cabinet as a rail-mounted transmitter.
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