FBM21

Basic Information

Model: FBM21

Manufacturer: Foxboro / Schneider Electric

System: I/A Series DCS

Type: 8 Channel Isolated Analog Input Module

Signal Type: 4–20mA / 0–20mA

Status: Legacy original spare part

Specifications

Channel Quantity: 8 isolated analog input channels

Input Signal Range: 0–20mA / 4–20mA configurable

Resolution: 16-bit

Accuracy: ±0.03% full scale

Input Impedance: 61.5 Ω

Isolation: Channel-to-channel and channel-to-ground galvanic isolation

CMRR: Over 100 dB at 50/60 Hz

NMRR: Over 95 dB at 50/60 Hz

Power Supply: 24VDC

Power Consumption: ≤ 6 W

Operating Temperature: -20°C to +70°C

Storage Temperature: -40°C to +85°C

Humidity: 5%–95% non-condensing

Environmental Rating: ISA S71.04 Class G3

Key Features

8 fully isolated analog input channels.High precision 16-bit conversion for process signal measurement.Compatible with standard 4–20mA field transmitters.Strong noise rejection for industrial interference environment.Support hot swap in redundant system.Legacy classic I/O module for I/A Series DCS system.

Application

Collect analog signals of pressure, flow, level and temperature transmitters.Widely used in chemical, petrochemical, power, oil & gas and water treatment process control systems.