Foxboro AD203MH High-Input Analog I/O Module – Product Description

Description / Overview

The Foxboro AD203MH is a high-input analog module designed for Foxboro I/A Series Distributed Control Systems (DCS). It integrates analog signal acquisition, conditioning, and communication in a compact module, ensuring precise and reliable measurements. Moreover, its rugged design supports continuous operation in demanding industrial environments.

Technical Data / Specifications

• Model: AD203MH

• Type: High-input analog module

• System Compatibility: Foxboro I/A Series DCS

• Number of Channels: Up to 32 analog inputs

• Supported Signals: Voltage (–32 V to +32 V), Current (–20 mA to +20 mA), RTDs, Thermocouples, Potentiometers

• Resolution: 16-bit

• Accuracy: ±0.1% of full scale

• Memory: 16 MB SDRAM, 32 MB Flash

• Input Voltage: 24 VDC (supports redundant supply)

• Power Consumption: Max 8.5 W per non-fault-tolerant module

• Configuration: Single processor; fault-tolerant requires dual modules

• Operating Temperature: 0 °C to +60 °C (32 °F to 140 °F)

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

• Humidity Range: 5% – 95% non-condensing

• Weight: 270 g

• Country of Origin: USA

• Application Areas: Oil & gas, chemical plants, refining, power generation, pulp & paper, water treatment

FAQ

Q1: How many channels does the AD203MH support?
A1: It supports up to 32 analog input channels for versatile process monitoring.

Q2: Which signal types are compatible with this module?
A2: It supports voltage, current, RTDs, thermocouples, and potentiometers.

Q3: Can the module be mounted on DIN-rails or panels?
A3: Yes, the module supports both DIN-rail and panel mounting configurations.

Q4: Is it suitable for fault-tolerant installations?
A4: Yes, dual modules can be configured for fault-tolerant operation.

Q5: What is the operating temperature range?
A5: It operates between 0 °C to +60 °C (32 °F to 140 °F) and stores safely down to –40 °C.