Description

The FOXBORO E69F-TI2-S is a dual-channel terminal interface block designed for use with FOXBORO I/A Series® distributed control systems (DCS), specifically supporting analog input function blocks such as the FBM207 and FBM242. It provides a robust, screw-terminal wiring interface for 4–20 mA field signals—often from smart HART transmitters—while delivering electrical isolation, surge suppression, and seamless connectivity to the I/O module above.

As a passive yet critical component of the I/O infrastructure, the FOXBORO E69F-TI2-S ensures signal integrity, simplifies maintenance, and enhances system reliability in oil & gas, power, chemical, and pharmaceutical applications.

Application Scenarios

At a North Sea offshore platform, intermittent signal drift from pressure transmitters on separator vessels caused false level alarms and unnecessary process trips. Investigation revealed corrosion in legacy spring-clamp terminals exposed to salt-laden air. The engineering team replaced all analog input bases with the FOXBORO E69F-TI2-S, leveraging its sealed screw terminals and enhanced common-mode noise rejection. Within weeks, signal stability improved by over 95%, and maintenance crews praised the clear labeling and tool-accessible terminals during storm-season inspections. In environments where every milliamp counts, the FOXBORO E69F-TI2-S isn’t just a connector—it’s a guardian of measurement fidelity.

 

Technical Principles and Innovative Values

Innovation Point 1: True HART Transparency – The FOXBORO E69F-TI2-S preserves full HART digital communication integrity between field devices and asset management systems (e.g., AMS Suite), with minimal signal distortion—enabling remote calibration and diagnostics without bypassing the terminal block.

Innovation Point 2: Dual-Use Flexibility – Each FOXBORO E69F-TI2-S supports either one dual-channel FBM or two single-channel modules in redundant architectures, maximizing panel density while maintaining 1:1 channel mapping for troubleshooting clarity.

Innovation Point 3: Field-Proven Noise Immunity – Engineered with high common-mode rejection ratio (CMRR > 100 dB), the terminal block filters out ground loops and EMI from VFDs or radio transmitters—critical in electrically noisy plants like refineries or steel mills.

Innovation Point 4: Maintenance-First Design – Screw terminals are accessible without removing the I/O module, and color-coded labels (e.g., “+”, “–”, “SHLD”) reduce wiring errors during commissioning or loop checks—cutting startup time by up to 25%.

Application Cases and Industry Value

A U.S. ethylene cracker plant upgraded its temperature monitoring system by installing over 300 FOXBORO E69F-TI2-S blocks paired with FBM242 modules across reactor and quench trains. The new interface eliminated cross-talk between adjacent thermocouple-derived 4–20 mA signals—a chronic issue with older terminal strips. During a planned turnaround, technicians completed loop verification 40% faster thanks to the intuitive terminal layout and secure clamping. Over three years, the site reported zero I/O-related process deviations linked to field wiring.

In a European biopharma facility under FDA 21 CFR Part 11 compliance, the FOXBORO E69F-TI2-S was selected for its audit-friendly traceability and stable signal performance in cleanroom HVAC control. The consistent 4–20 mA response ensured precise humidity and differential pressure control—critical for sterility. Validation engineers noted that signal repeatability improved from ±0.5% to ±0.1% after the upgrade.

Related Product Combination Solutions

FOXBORO FBM207: 8-channel isolated analog input module – mounts directly onto FOXBORO E69F-TI2-S

FOXBORO FBM242: 16-channel non-isolated AI module – cost-effective for dense monitoring with E69F-TI2-S base

FOXBORO E69F-TI1-S: Single-channel version – for mixed I/O or space-constrained panels

FOXBORO P0916YD: I/O carrier chassis – houses multiple E69F-TI2-S blocks in a rugged backplane

FOXBORO SYMPLUS Workbench: Configuration software – auto-maps channels wired to E69F-TI2-S terminals

Rosemount 3051: HART pressure transmitter – commonly connected to FOXBORO E69F-TI2-S in process loops

FOXBORO FBM237: Thermocouple input module – uses different terminal block (E69F-TT1-S), listed for reference

Schneider Electric EcoStruxure™ Asset Advisor: Cloud service – can ingest HART data routed through E69F-TI2-S for predictive analytics

Installation, Maintenance, and Full-Cycle Support

Installing the FOXBORO E69F-TI2-S begins with securing it to a DIN rail inside a certified I/A Series I/O chassis. Field wires are inserted into labeled screw terminals—torqued to 0.6 Nm—and shield drains are connected to the dedicated grounding point to minimize noise. The I/O module (e.g., FBM207) then snaps vertically onto the terminal block, establishing both power and signal paths via gold-plated contacts.

Maintenance is streamlined: if an I/O module fails, it’s removed without disturbing field wiring. Technicians can perform live loop tests at the terminal screws using standard multimeters or HART communicators. After exposure to harsh conditions (e.g., chemical splashes), the block can be cleaned with isopropyl alcohol—its polycarbonate housing resists degradation.

We provide comprehensive lifecycle support for the FOXBORO E69F-TI2-S, including compatibility verification, obsolescence management, and counterfeit screening. Every unit we supply undergoes visual and continuity inspection to ensure terminal integrity and correct labeling. With deep expertise in FOXBORO I/A Series architecture and global logistics, we keep your DCS I/O layer reliable—from commissioning to decommissioning.

Contact us for a customized solution—whether you’re expanding an existing I/A Series system, modernizing legacy terminals, or securing long-term spares for critical process control, the FOXBORO E69F-TI2-S delivers precision, durability, and peace of mind in every connection.