ABB TTF300.S3.C.2.H.BF-C4.C Field-Mount Temperature Transmitter

Overview

The ABB TTF300.S3.C.2.H.BF-C4.C is a field-mount temperature transmitter from ABB’s TTF300 series, engineered in proven two-wire technology to accept resistance thermometers, thermocouples, and direct resistance signals up to 5000 Ω, converting the sensor input into a standardized 4-20 mA signal with HART communication. The transmitter can measure one or two sensor inputs simultaneously, giving process engineers redundancy or differential temperature measurement capability from a single field-mounted device.

As the official authorized partner and exclusive regional representative for ABB in the Sultanate of Oman, Seven Star LLC proudly supplies the ABB TTF300.S3.C.2.H.BF-C4.C transmitter with full manufacturer traceability, calibration certification, and documented warranty support. Process facilities across Muscat, Sohar, and Salalah rely on Seven Star LLC to source genuine ABB temperature instrumentation, avoiding the accuracy drift and unsupported firmware associated with grey-market transmitters.

Measurement Principle

The ABB TTF300.S3.C.2.H.BF-C4.C accepts the raw electrical signal from a connected RTD or thermocouple sensor, linearizes the input according to the sensor type’s characteristic curve, and applies cold-junction compensation for thermocouple inputs before converting the linearized temperature value into a proportional 4-20 mA output signal. HART communication is superimposed on the same two-wire loop, allowing bidirectional digital communication for configuration, diagnostics, and secondary variable transmission without requiring additional wiring.

Because the transmitter continuously monitors sensor health, including detecting drift, open-circuit, and short-circuit conditions, it provides diagnostic information that a bare sensor loop cannot offer on its own, alerting maintenance teams to a developing sensor fault before it causes a control loop upset. The practical consequence for plant operators is a temperature measurement point with 0.1 K accuracy and continuous self-diagnostic monitoring, reducing both the risk of undetected sensor failure and the maintenance effort required to verify loop health.

Engineering Design of the ABB TTF300

The ABB TTF300.S3.C.2.H.BF-C4.C is housed in a field-mount enclosure rated for hazardous area installation per the approvals defined in the specific order code, with a digital front panel local display and interface supporting on-site configuration without requiring a separate handheld communicator. Input/output redundancy and sensor matching capability allow the transmitter to be configured for dual-sensor applications, where one sensor can serve as a backup or where differential temperature measurement is required across two points.

The transmitter’s terminal compartment accommodates standard RTD and thermocouple wiring configurations, and its wide sensed temperature range of -200°C to +850°C covers the vast majority of industrial process temperature measurement requirements from cryogenic service through high-temperature process streams. This broad application range, combined with HART/PROFIBUS PA/FOUNDATION Fieldbus protocol options depending on the ordered configuration, makes the TTF300 platform adaptable to a wide variety of plant control system architectures.

Key Features

The ABB TTF300.S3.C.2.H.BF-C4.C combines precision measurement with continuous diagnostics, and the following features summarize why process engineers specify this transmitter for critical temperature loops:

• Two-wire HART technology delivers 4-20 mA output with superimposed digital communication on the same loop.
• Accepts RTD, thermocouple, and direct resistance inputs up to 5000 Ω for broad sensor compatibility.
• Dual-sensor input capability supports redundancy or differential temperature measurement applications.
• Continuous sensor diagnostics detect drift, open-circuit, and short-circuit conditions before they cause control upsets.
• Measurement accuracy of 0.1 K supports demanding process control and custody-transfer applications.
• Wide sensed temperature range of -200°C to +850°C covers cryogenic through high-temperature process service.
• Digital front panel local interface simplifies on-site configuration without a separate communicator.
• Hazardous area approval options support installation in classified process environments.

Industrial Applications

The ABB TTF300.S3.C.2.H.BF-C4.C is deployed across refinery process units, petrochemical reactors, and power generation steam systems where accurate, continuously diagnosed temperature measurement is essential to safe and efficient operation. In Oman, this transmitter platform is commonly specified for refinery distillation column temperature profiling, power plant boiler and turbine temperature monitoring, and district cooling plant chilled water temperature control loops.

As the officially authorized partner for ABB, Seven Star LLC distributes the TTF300 series to EPC contractors and plant instrumentation teams throughout the Sohar and Salalah economic zones, supporting both new project specification and like-for-like transmitter replacement on existing ABB temperature measurement points across Muscat. The transmitter’s diagnostic capability and measurement accuracy make it a preferred specification for critical temperature control across the GCC’s energy and process industries.

Technical Specifications

The table below summarizes the key operating parameters of the ABB TTF300.S3.C.2.H.BF-C4.C temperature transmitter.

Call To Action

As the authorized partner for ABB in Oman and the GCC, Seven Star LLC supports formal RFQ submissions, holds regional warehouse stock for rapid dispatch, and can provide the full technical datasheet for the ABB TTF300.S3.C.2.H.BF-C4.C transmitter on request. Contact the Seven Star LLC instrumentation division for genuine ABB temperature instrumentation and application engineering support across Muscat, Sohar, and Salalah.