Description
Foxboro FBM208
Technical Specifications
- Module Series: 200 Series FBM.
- Signal Type: 4-20 mA Analog Input/Output.
- Communication: Redundant 2 Mbps Module Fieldbus.
- Power Supply: 24 VDC backplane power.
Functional Features
- High-Precision Conversion: Advanced A/D and D/A converters for accurate signal handling.
- Channel Isolation: Galvanic isolation to prevent ground loops and noise interference.
- Hot-Swappable: Supports online maintenance without process interruption.
- Diagnostic Feedback: Real-time reporting of open wire, short circuit, and over-range conditions.
Application Scenarios
Extensively used in chemical reactors, power plant boiler control, and water treatment filtration systems for precise continuous process regulation.
Performance Parameters
- Accuracy: ±0.05% of span.
- Operating Temperature: 0°C to 60°C.
Material Composition
Rugged extruded aluminum enclosure with conformal-coated internal PCBs.
Structural Characteristics
- Dimensions: Standard 200 Series FBM size.
- Termination: Dedicated Termination Assembly (TA) for field wiring.
Working Principle
Conditions 4-20 mA field signals, converts them to digital values for the controller, and converts digital control outputs back to 4-20 mA signals to drive final control elements.
Installation Requirements
- Use shielded twisted-pair cables for analog signals.
- Ensure proper grounding of shields at the TA.
- Mount in a well-ventilated cabinet.
Precautions for Use
- Verify signal type and range configuration before commissioning.
- Do not apply external voltage to analog input terminals.
- Handle with ESD-safe practices.
