Krohne OPTITEMP TT 53 2-wire temperature transmitter

The Krohne OPTITEMP TT 53 is a universal programmable 2-wire temperature transmitter for resistance (RTD) and thermocouple (TC) elements. Aimed at the chemical, oil and gas and power generation industries, it features HART 7 communication, NAMUR NE 107 diagnostics and Ex approvals.

Available in both compact (C) and rail-mounted (R) versions, the transmitter can be programmed via PC or HART handheld, or wireless by using the OPTITEMP Connect mobile app for iOS and Android devices. The app can communicate with OPTITEMP TT 53 via the built-in near-field communication (NFC) or the optional OPTITEMP TT-CON BT configuration kit, a small Bluetooth modem. From a mobile device, the user can program, configure and monitor the transmitter and, for example, set mA outputs, perform an output simulation, view actual supply voltage, check the runtime counter and the current or historical process/ambient temperature log. Via HART 7 communication, some of these readings can also be made available to a PC.

The robust design of the OPTITEMP TT 53 offers vibration resistance up to 10g, a fast step response time and a high accuracy (±0.08% of span; max. ±0.08K), resulting in a high long-term stability (max. drift ±0.02% of span/year). With ATEX and IECEx approvals, the transmitter is suitable for use in hazardous areas. It also offers extended diagnostic information according to NAMUR NE 107, such as device error, sensor break monitoring and wiring conditions. It is also compliant to NAMUR recommendations NE 21, 43 and 53.