Description

The FOXBORO FBM242 RH916TA is a high-density 4-channel analog input module designed for the FOXBORO I/A Series Distributed Control System (DCS), delivering precision signal acquisition in critical process control applications. This robust field bus module converts milliamp (4-20mA) and voltage (±1V to ±10V) signals from transmitters and sensors into digital data with 16-bit resolution, enabling real-time monitoring of temperature, pressure, flow, and analytical variables. The FOXBORO FBM242 RH916TA features channel-to-channel isolation (500V AC) and integral surge protection, ensuring signal integrity in electrically harsh environments like refinery boiler houses or chemical processing units. As part of FOXBORO’s FBM200 series, it supports hot-swap installation in FBM carriers and integrates seamlessly with CP60/CP70 control processors. The module’s “RH916TA” suffix denotes extended temperature tolerance (-40°C to +85°C) and ATEX-compliant construction, making the FOXBORO FBM242 RH916TA indispensable for safety instrumented systems (SIS) requiring SIL2 certification under IEC 61508.

FOXBORO FBM242 RH916TA

Technical Specifications

Main Features and Advantages

Precision Signal Conditioning: The FOXBORO FBM242 RH916TA incorporates auto-zero calibration and drift-compensated amplifiers, maintaining ±0.05% accuracy across its full operating temperature range. Each channel provides configurable burnout detection (up-scale/down-scale) and open-wire diagnostics for predictive maintenance.

Extreme Environment Resilience: Engineered with conformally coated PCBs and stainless-steel terminals, the module withstands 97% humidity and corrosive atmospheres. Its 50g shock resistance (per IEC 60068-2-27) ensures reliability in vibration-prone areas like compressor stations.

Smart Integration: Supports FOXBORO’s Charactermizer™ technology for automatic transmitter configuration and NAMUR NE107 diagnostics. When used with FBM228 carrier modules, the FOXBORO FBM242 RH916TA enables hot-swap replacement without process interruption. Redundant power inputs prevent single-point failures in safety loops.

Application Field

The FOXBORO FBM242 RH916TA is deployed in hydrocarbon processing for crude distillation column temperature monitoring, where its ±0.05% accuracy optimizes fractionation efficiency. In LNG liquefaction trains, it acquires cryogenic temperature data from RTDs at -162°C. Power generation applications include boiler drum level control via differential pressure transmitters, with the module’s NAMUR compliance enabling early leak detection.

Pharmaceutical batch reactors utilize its isolated channels for pH and conductivity measurements, ensuring FDA 21 CFR Part 11 data integrity. For water/wastewater treatment, the FOXBORO FBM242 RH916TA interfaces with chlorine analyzers in disinfection systems, with ATEX certification allowing installation in Zone 2 hazardous areas. Mining sector applications include slurry density monitoring in flotation cells, leveraging its vibration resistance.

Related Products

FOXBORO FBM217: 8-channel digital input module for same carrier

FOXBORO FBM231: 4-channel analog output companion module

FOXBORO P0926GU: FBM carrier baseplate for rail mounting

FOXBORO CP70: Control processor for I/A Series DCS

FOXBORO FBM228: Redundant carrier for high-availability systems

FOXBORO CBL01A: Field wiring harness kit

FOXBORO P0400SV: Surge protector for field wiring

FOXBORO FBM204: Thermocouple/RTD input variant

FOXBORO FBM242 RH916TA

Installation and Maintenance

Pre-installation preparation: Verify carrier compatibility (requires FBM228/P0926GU). Configure channel ranges via FoxDraw software before mounting. Use shielded twisted-pair cables with drain wires grounded at single point. Maintenance recommendations: Perform annual calibration verification using 0.02% accuracy source. Monitor “Channel Health” metrics in Foxboro Control Core software; replace if drift exceeds 0.1%. When handling the FOXBORO FBM242 RH916TA, avoid electrostatic discharge by using grounded wrist straps. In corrosive environments, clean terminals biannually with contact cleaner.