Overview
The FBM228 (P0922QS) is a high-precision analog input module for the Foxboro I/A Series. It acquires 4–20 mA signals from pressure, temperature, flow, and other field instruments. With 8 independent channels, each with galvanic isolation, it ensures signal integrity against noise, ground loops, and surges. The rugged housing withstands vibration and wide temperature variations.

Key Specifications

• Input Channels: 8 isolated analog inputs

• Signal Range: 4–20 mA DC

• Resolution: 15-bit

• Accuracy: ±0.05% FS

• Input Impedance: 250 Ω

• Isolation: Channel-to-channel and channel-to-earth

• Loop Power: Supports external 24 V DC

• Power Consumption: ≤5 W

• Operating Temperature: -20 to 70 °C

• Vibration: 7.5 m/s² (5–500 Hz)

• Dimensions : 102 × 45 × 104 mm 

• Interface: Compatible with RH928X series termination assemblies

Typical Applications

• Petrochemical: High-integrity pressure monitoring

• Power Generation: Turbine lubrication oil pressure and temperature

• Water Treatment: Remote flow meter integration

• Manufacturing: Chemical dosing and batch control

FAQ

Q1: Does the module provide internal loop power?
A: No. Loop power must come from an external 24 V DC supply or powered termination assembly.

Q2: Can it be mounted in a 19-inch rack?
A: Yes, via DIN rail or Foxboro modular mounting hardware.