The Krohne OPTITEMP TT 51 R a universal, programmable high-performance 2-wire rail-mounted temperature transmitter with HART® communication. The galvanically isolated dual input device works with RTD elements, thermocouple (TC) elements or other inputs (mV and Ω). The device is available in 2-, 3- or 4-wire circuit. It also features the option of a 4-wire circuit for two Pt100 inputs. The transmitter stands for proven stability, reliability as well as high accuracy and boasts a minimum measuring error of ±0.05% of span in 5 years. The transmitter offers extended diagnostic information (e.g. open or short circuit monitoring etc.). Its unique “SmartSense” function allows insulation resistance monitoring to prevent measuring errors. The OPTITEMP TT 51 R is SIL2 approved (IEC 61508) and thus the ideal solution for use in Safety Instrumented Systems (SIS). The temperature transmitter is also available as intrinsically safe. As an added bonus, the ConSoftTM configuration software makes the transmitter start-up particularly simple. The temperature transmitter is designed to be mounted on a DIN rail. A dedicated head-mounted version is available with the OPTITEMP TT 51 C.
Features
Highly precise, completely universal digital device, with dual sensor input
Configuration, installation and maintenance via software ConSoftTM, HART® protocol or EDD
Optional redundant 4-wire circuit for 2 x Pt100
Best in class for long-term stability: ±0.05% of span in 5 years
Fast response time, high speed update (300 ms)
High reliability due to 50-point linearisation, sensor drift detection and sensor backup
Sensor break monitoring, failure detection and error correction
Isolation resistance monitoring (SmartSense): fail-safe up to 95% relative air humidity
Rugged design: vibration-resistant up to 10 g
Galvanic isolation: 1500 VAC
Conforms to NAMUR in accordance with NE 43, NE 53, NE 89, NE 107
Conforms to EMC in accordance with EN 61326 and NE 21 SIL2 certified as per IEC 61508
Can be configured via ConSoftTM while staying connected with a sensor installed in hazardous areas
Designed for installation on a rail (in accordance with DIN EN 60715)
Available as intrinsically safe: ATEX, IECEx (zone 0, 1, 2)
