Foxboro FBM202 (P09261Q) Isolated Thermocouple/mV Module

Product Overview

The FBM202 (Part Number: P09261Q) is a high-precision analog input module engineered for the Foxboro I/A Series Distributed Control System (DCS). Specifically designed to interface directly with thermocouples and low-voltage millivolt (mV) signals, the FBM202 (Model: P09261Q) eliminates the operational complexity and cost of external signal converters or transmitters.

Featuring eight isolated channels, this module provides superior noise immunity and protects system logic against ground loops and electrical interference. It is an essential component for critical temperature monitoring in high-thermal environments, supporting a wide range of thermocouple types including B, E, J, K, N, R, S, and T. With integrated Cold Junction Compensation (CJC) and open-circuit burnout detection, the FBM202 (P09261Q) ensures deterministic data acquisition for mission-critical industrial processes.

Detailed Technical Specifications

The FBM202 P09261Q is built to maintain signal integrity under extreme industrial conditions.

• Manufacturer: Foxboro (by Schneider Electric)

• Model Number: FBM202

• Part Number: P09261Q

• Product Type: Thermocouple/millivolt (mV) Input Module

• System Compatibility: Foxboro I/A Series DCS

• Input Channels: 8 isolated channels

• Measurement Range: –200 mV to +200 mV DC

• Supported Sensors: Thermocouple Types B, E, J, K, N, R, S, T

• Accuracy: ±0.1% of span

• Signal Resolution: 0.01 mV

• Common Mode Rejection: 120 dB at 60 Hz

• Response Time: 2 seconds (typical)

• Isolation: Channel-to-channel and channel-to-system isolation

• Operating Temperature: –40 °C to +80 °C

• Storage Temperature: –40 °C to +85 °C

• Relative Humidity: 5% to 95% (non-condensing)

• Power Requirement: 24 V DC (supplied via Fieldbus backplane)

• Weight: 284 g

• Safety Features: Burnout (open circuit) detection and reverse polarity protection