Foxboro FBM204 RH914SY I/O Module

Overview

• 0-20 mA analog input/output module
• Four isolated analog input channels
• Four isolated analog output channels
• Interfaces field devices to fieldbus network

Technical Specifications

Input Channels

• Number: 4
• Range: 0-20.4 mA dc
• Accuracy: ±0.03% of span
• Temperature coefficient: ±50 ppm/ºC
• A/D conversion: Sigma-Delta converter
• Input impedance: 61.5 Ω nominal
• Integration period: Software configurable
• Common mode rejection: >100 dB at 50 or 60 Hz
• Normal mode rejection: >95 dB at 50 or 60 Hz
• Field device cabling distance: Depends on various factors
• Loop power supply protection: Galvanically isolated, current limited, and voltage regulated

Output Channels

• Number: 4
• Range: 0-20.4 mA dc
• Accuracy: ±0.03% of span
• Temperature coefficient: ±50 ppm/ºC
• Output load: 750 Ω maximum
• Output processing delay: 30 ms maximum
• Resolution: 13 bits
• Field device cabling distance: Depends on various factors

Power Requirements

• Input voltage range (redundant): 24 V dc ±5%, -10%
• Consumption: 7 W
• Heat dissipation: 3.5 W

Environmental Specifications

• Operating/storage temperature: -20 to +70°C
• Relative humidity: 5 to 95% (noncondensing)
• Altitude: -300 to +3,000 m
• Vibration: 7.5 m/s² from 5 to 500 Hz
• Contamination: Suitable for Class G3 (Harsh) environments

Physical Specifications

• Weight: 284 g (10 oz) approximate
• Dimensions: 102 mm (height) x 45 mm (width) x 104 mm (depth)
• Termination cables: Up to 30 m long, polyurethane or LSZH material

Construction

• Termination assembly material: Polyamide (PA), compression
• Field termination connections: Compression or ring lug types