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The OPTITEMP TT 51 C is a versatile, programmable 2-wire head-mounted temperature transmitter with HART® communication. This galvanically isolated device accommodates RTD elements, thermocouples (TC) or other inputs (mV and Ω) in various circuits. With a minimum measuring error of ±0.05% of span over 5 years, it ensures stability and reliability. The HART® transmitter provides extended diagnostic information, including open or short circuit monitoring, while the "SmartSense" function prevents measuring errors by monitoring insulation resistance.


  • High Precision & Universal: Dual sensor input for versatile applications.

  • Flexible Configuration: Software-based setup and maintenance via ConSoft, HART® protocol, or EDD.

  • Long-term Stability: Best-in-class accuracy with ±0.05% of span over 5 years.

  • Fast Response: Quick updates with a high-speed response time of 300 ms.

  • Reliability: Ensured by 50-point linearization and sensor drift detection.

  • Safety Features: Sensor break monitoring, error correction, and isolation resistance monitoring (SmartSense).

  • Rugged Design: Vibration-resistant up to 10 g, ensuring durability.

  • Galvanic Isolation: Protection up to 1500 VAC.

  • Compliance: Conforms to NAMUR standards (NE 43, NE 53, NE 89, NE 107) and EMC standards (EN 61326, NE 21).

  • Compatibility: Suitable for connection head B or larger.

  • SIL2 Certification: Meets safety integrity level 2 requirements.

  • Mounting Flexibility: Optional rail mounting kit available for DIN rail installation (DIN EN 60715).

  • Intrinsically Safe: ATEX and IECEx certified for use in hazardous environments (zone 0, 1, 2).

Krohne

OPTITEMP TT 51 C

Head-Mounted Temperature Transmitter

Krohne
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