Foxboro FBM202 P0916AC Thermocouple/mV Input Module

Description

The Foxboro FBM202 P0916AC is a DIN rail-mounted passive termination assembly designed to interface eight isolated thermocouple/mV analog input signals with an FBM202 module within the Foxboro I/A Series and Foxboro Evo DCS platforms. The P0916AC termination assembly incorporates a 4-wire 100 ohm platinum RTD (IEC 751, Class B) to provide cold-junction reference temperature compensation for accurate thermocouple measurements. Each input channel on the associated FBM202 module provides galvanic isolation from other channels and ground, supporting standard thermocouple types B, E, J, K, N, R, S, T, and millivolt input signals. Signal processing involves per-channel Sigma-Delta A/D conversion, upscale thermocouple burnout detection, and configurable integration periods. The P0916AC termination assembly connects to the baseplate-mounted FBM202 module via a removable Type 2 termination cable, conveying field signals to the module and communicating via the redundant 2 Mbps module Fieldbus to Fieldbus Communication Modules or Control Processors.

Features

• Eight-channel field I/O feedthrough connection with channel-to-channel galvanic isolation
• Integrated 4-wire 100 ohm platinum RTD (IEC 751, Class B) for reference junction compensation
• Compression screw terminal connections accepting 0.2 to 4 mm2 (24 to 12 AWG) field wiring
• Polyvinyl chloride (PVC) housing construction rated for -20 to +50 degC operating temperatures
• Passive feedthrough interface supporting Type 2 termination cables up to 30 m in length
• DIN rail mounting design compatible with 32 mm and 35 mm DIN rails
• High-accuracy performance utilizing per-channel Sigma-Delta A/D conversion on the FBM202

Applications

• Thermocouple signal interfacing for DCS temperature loops
• Process temperature monitoring with cold junction compensation
• Millivolt input processing for industrial automation systems
• Replacement and upgrade of Foxboro 100 Series FBM02 field wiring setups

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• DIN Rail Mounting: Mount the P0916AC termination assembly on standard 32 mm or 35 mm DIN rails.
• Cable Connection: Connect the 25-pin D-subminiature end of the Type 2 termination cable to the TA and the 37-pin D-subminiature end to the FBM202 baseplate slot.
• Field Wiring: Insert field wiring into compression screw terminals accepting 0.2 to 4 mm2 (24 to 12 AWG) solid or stranded conductors.
• Hazardous Area Limits: Ensure field wiring voltages do not exceed 30 V ac or 60 V dc to prevent electrical safety code violations and shock hazards.
• Environmental Enclosure: Install in appropriate enclosures when operating in Class G3 harsh environments to comply with environmental ratings.

Compliance and Certifications

• UL/UL-C: UL/UL-C listed as suitable for use in Class I, Groups A-D, Division 2, temperature code T4 hazardous locations.
• ATEX / CENELEC: CENELEC (DEMKO) certified EEx nA IIC T4 for use in Zone 2 potentially explosive atmospheres.