Krohne OPTITEMP TT 33 C/R universal 4–20 mA temperature transmitter

The Krohne OPTITEMP TT 33 C/R is a universal 4–20 mA temperature transmitter to be used with RTD and TC sensors. Available in head-mounted (TT 33 C) and rail-mounted (TT 33 R) versions, the product was designed according to the latest standards and user requirements, such as convenient configuration and safety over time. It is aimed at all industries that use process temperature assemblies in standard applications in harsh environments, such as chemicals, power generation, iron and steel.

Using Krohne’s ConSoft software, the 4–20 mA device can be easily configured from a PC in hazardous areas. Over its lifetime the transmitter provides a measuring accuracy of ±0.08°C or ±0.08% of span, and a drift of ±0.01°C per 1°C or ±0.01% of span per 1°C. This low-temperature drift makes regular calibration less necessary.

In terms of safety, the product is compliant to NAMUR recommendations (NE) 21, 43, 53 and 107, and features ATEX and IEC Ex approvals. Due to a robust construction, external influences such as ambient temperature, vibration (up to 10g, as may occur in OEM/machinery applications), moisture and electromagnetic waves are negligible.

The transmitter can provide correction for the measurement error of the system consisting of either the sensor itself or sensor and transmitter together. It also features a run time counter, tracking and backup of previous configuration, an ambient temperature log, and an output simulation for loop testing.