TTH300

What is a head-mount temperature transmitter used for?

A head-mount temperature transmitter is used to convert the signal from a connected temperature sensor into a stable process measurement signal for monitoring and control. The ABB TTH300 is designed for installation close to the sensor, which can help simplify field wiring and improve measurement reliability in industrial temperature applications.

Which sensor types can this device work with?

This transmitter can be used with a wide range of input types, including resistance thermometers such as RTDs, thermocouples, resistance inputs and millivolt inputs. That flexibility makes it suitable for many common process heating, cooling and general temperature measurement duties.

Can it handle two sensors at the same time?

Yes. This model can be configured for dual-sensor use, which is useful where a process requires comparison, averaging, differential measurement or a changeover strategy between two connected sensors.

Is sensor redundancy possible with this transmitter?

Yes, redundancy functions are one of the key advantages of this design. In suitable configurations, the unit can use two sensor inputs so that if one sensor becomes unavailable, the measurement strategy can continue according to the selected setup.

Can it help identify sensor drift or wiring faults?

Yes. The device includes diagnostic and monitoring functions that can help identify issues such as wire break, short circuit, excessive line resistance, sensor drift and other measurement-related irregularities. This can be valuable in applications where early fault indication is important.

Which communication options are available?

Depending on the version selected, the transmitter can be supplied for HART, PROFIBUS PA or FOUNDATION Fieldbus communication. This allows it to fit into a range of plant architectures, from conventional process loops through to digitally integrated instrumentation systems.

Is a local display available?

Yes, an optional LCD indicator is available for local viewing. The display can be fitted to the transmitter and adjusted to suit the mounting position, making it easier to read measured values and device information at the installation point.

Where can this transmitter be mounted?

It is primarily designed as a head-mount unit for installation in a temperature sensor head, but it can also be mounted in other arrangements such as the cover of a connection head or on a top-hat rail when the correct fixing accessories are used.

Is DIN rail mounting possible?

Yes. With the appropriate snap-on fixing set, the transmitter can be mounted on a 35 mm top-hat rail. This can be useful where the installation is being built inside a panel or field enclosure rather than directly in a sensor head.

Can it be used in hazardous-area applications?

Certain versions are intended for use in hazardous-area installations, subject to the exact approval and installation requirements of the selected variant. Because approvals and enclosure combinations can differ, the exact certification should always be checked against the ordered unit.

Does it offer local configuration and status information?

Yes. Depending on the version and fitted options, the device provides access to menus for configuration, measured range setup, display settings, communication parameters, process alarms, diagnostics and device information. This can make commissioning and routine checks more straightforward on site.

What kinds of applications is this transmitter typically used in?

This type of transmitter is commonly used in process industries where dependable temperature measurement is needed, such as chemical plants, food and beverage processes, utilities, water treatment, energy systems and general manufacturing. The ABB TTH300 is especially well suited where flexible sensor input options and field mounting are required.