Honeywell STT17F temperature transmitter

Honeywell STT17F temperature transmitter

Product Overview

The Honeywell STT17F is a FOUNDATION Fieldbus smart temperature transmitter from Honeywell’s STT170 economy-tier family, designed for cost-effective temperature monitoring applications across industrial process environments. The STT17F converts low-level signals from RTD and thermocouple sensors into digital FOUNDATION Fieldbus communications, enabling reliable temperature measurement over long distances through electrically noisy plant environments.-17

The STT17F is part of the STT3000 series of microprocessor-based smart temperature transmitters. Honeywell’s STT3000 product line helps processing manufacturers, OEMs, and EPC contractors achieve reliable, accurate, and stable temperature measurement across a wide range of monitoring, control, and safety applications. The STT170 series—which includes the STT17F—offers three performance tiers (economy, mid-tier, and high-tier) to provide optimal combinations of price and performance for different process application needs.-3

Compared to direct-wired temperature sensor monitoring points, the STT17F delivers increased accuracy, safety, and reliability while also significantly reducing wiring costs. The STT17F automatically linearizes temperature signal output within user-defined upper and lower limits, and users can program high and low alarm points that trigger upon sensor failure.-27

Key Technical Specifications — Honeywell STT17F

Block Structure:

2× AI Blocks – Analog Input function blocks for measurement processing

1× PID Block – Proportional-Integral-Derivative control block for closed-loop control

Link Active Scheduler – Supports basic or link active scheduler functionality for bus arbitration

The STT17F operates as a fully registered FOUNDATION Fieldbus device with FieldComm Group, carrying registration date of January 2, 2015. The device’s block structure includes one Resource Block (RB), two Analog Input (AI) blocks, one Proportional-Integral-Derivative (PID) block, and three Transducer Blocks (TB).-7

Performance & Operational Characteristics

Accuracy & Stability
The STT17F delivers digital accuracy of ±0.1°C for Pt100 and Ni100 RTD inputs, providing high-precision temperature measurement suitable for critical process monitoring and control applications. The transmitter’s performance across thermocouple input types varies by thermocouple type; consult detailed specifications for specific T/C accuracy figures.-17

Galvanic Isolation
The STT17F provides galvanic isolation between circuits capable of withstanding a test voltage of 500 Vac for one minute. While the sensor circuit is not infallibly isolated from the input circuit, this isolation level ensures adequate protection for most industrial installations.-5

Programmable Features
The STT17F supports programmable high and low limit alarm points. Upon sensor failure, the transmitter can be configured to output upscale or downscale values in accordance with NAMUR NE43 specifications, ensuring predictable fail-safe behavior for process control systems.-27

Configuration & Integration

The STT17F is configured using a FOUNDATION Fieldbus communicator, not the STT17C PC-based configuration tool (which is designed for STT171, STT173, and STT17H models). This distinction is important: the STT17F uses native FOUNDATION Fieldbus configuration methods rather than the HART-focused STT17C toolkit.-1

The STT17F supports the following FOUNDATION Fieldbus capabilities:

Link Active Scheduler (LAS): The STT17F can function as either a basic or link active scheduler device for bus arbitration on the FOUNDATION Fieldbus segment

Function Block Linking: Supports linking between function blocks for advanced control strategies

Alarms & Events: Full support for alarm and event reporting to host systems

Trending: Built-in trending capability for historical data logging

FISCO Certification: Intrinsically safe operation certified under FISCO (Fieldbus Intrinsically Safe Concept) model

The STT17F is fully registered with FieldComm Group, ensuring interoperability with all FOUNDATION Fieldbus-compatible host systems, distributed control systems (DCS), and asset management platforms. The device’s PID block enables standalone closed-loop control directly on the fieldbus segment without requiring host controller intervention for basic control loops.

Environmental & Installation Specifications

Hazardous Area Installations
For safe installation of the STT17F in hazardous areas, the transmitter must be installed by qualified personnel familiar with national and international laws, directives, and standards applicable to explosive atmospheres.-5

Ingress Protection Requirements
The STT17F must be mounted in an enclosure to provide a degree of ingress protection of at least IP20. In explosive atmospheres caused by air/dust mixtures, the STT17F may only be installed when mounted in a metal enclosure Form B according to DIN 43729 that provides ingress protection of at least IP6X in accordance with EN 60529. Cable entries and blanking elements must be suitable for the application and correctly installed.-5

High Ambient Temperature Installations
For ambient temperatures ≥60°C (140°F), heat-resistant cables shall be used with a rating of at least 20°C above the ambient temperature.-5

Special Conditions for STT17F-BN
The STT17F-BN variant requires the transmitter to be mounted in an enclosure providing ingress protection of at least IP54 per EN 60529. Provisions must be made to prevent the rated supply voltage from being exceeded by more than 40%.-5

Applications

The STT17F is ideally suited for a wide range of cost-effective temperature monitoring and control applications:

Oil & Gas: Process temperature monitoring, pipeline temperature control

Chemical Processing: Reactor temperature measurement, exothermic reaction monitoring

Power Generation: Boiler temperature monitoring, auxiliary system control

Pharmaceuticals: Cleanroom temperature monitoring, bioreactor temperature measurement

Food & Beverage: Process temperature monitoring, cold chain management

General Industrial: Equipment temperature monitoring, OEM machinery integration

Safety Systems: SIL-rated installations requiring FOUNDATION Fieldbus integration

The STT17F helps end users and Original Equipment Manufacturers (OEMs) achieve reliable and accurate temperature measurement in a cost-effective manner. When ordering the STT17F, users can combine it with Honeywell temperature sensors and thermowells to form complete, installation-ready temperature measurement assemblies.-13-27

Ordering Information

The STT17F is a fully registered FOUNDATION Fieldbus device delivered factory-calibrated and ready for immediate installation in DIN Form B head mount or DIN rail configurations. Each STT17F undergoes rigorous quality testing before shipment to ensure compliance with Honeywell’s STT3000 performance standards.

For bulk pricing, expedited delivery options, or technical pre-sales consultation regarding the STT17F FOUNDATION Fieldbus temperature transmitter, please contact our sales team.