Honeywell FS-SAO-0220M Safety Analog Output Modules

Its robust design and precise signal processing capabilities make it suitable for use in industries such as oil & gas, refining, petrochemicals, and power generation, where compliance with stringent safety standards (such as IEC 61508 and ISA S84) is critical.

Technical Specifications

Product Advantages

1. Dual-Channel Redundancy: Each FS-SAO-0220M module includes two independent analog output channels, providing high reliability and enabling redundancy in safety applications.

2. Integrated Diagnostics: Advanced self-diagnostic features monitor loop integrity, detect short circuits, and identify open loop failures in real-time, improving system reliability.

3. Compliance with SIL Standards: Certified for use in SIL2 and SIL3 environments, ensuring suitability for high-demand safety functions.

4. Robust Build for Harsh Environments: With extended temperature and humidity tolerances, the module is ideal for installation in extreme industrial conditions.

5. Flexible Mounting Options: Compatible with standard Honeywell FSC chassis configurations, allowing seamless integration into existing systems.

6. Fast Response Time: The module responds quickly (<20 ms), enabling tight control loops and rapid safety responses.

7. Electrically Isolated Outputs: Ensures no cross-interference between channels and protects the system from transient disturbances.

Applications

• Emergency Shutdown Systems (ESD)

  Drives final control elements like shutdown valves with analog positioning.

• Burner Management Systems (BMS)

  Outputs control signals to fuel valves or VFDs based on flame detection and safety logic.

• Boiler and Turbine Control

  Provides accurate control signals for steam or gas turbine modulation and operation.

• Compressor Anti-surge Systems

  Delivers fine-tuned control of anti-surge valves based on real-time process data.

• Chemical Dosing Control

  Adjusts analog pumps or dosing systems in critical chemical processes.

• Remote Terminal Units in Hazardous Areas

  Suitable for outputting control signals in Ex-rated enclosures in oilfields or offshore rigs.

Frequently Asked Questions (FAQ)

Q1: What type of signal does the FS-SAO-0220M output?

A1: The module provides a standard 4–20 mA analog output signal per channel, suitable for most industrial actuators.

Q2: Can this module be used in SIL3 safety functions?

A2: Yes, when installed in a redundant configuration, it meets SIL3 compliance per IEC 61508.

Q3: Is the FS-SAO-0220M hot-swappable?

A3: No, due to its role in safety-critical applications, the module should not be replaced while powered to maintain system integrity.

Q4: Does it support HART communication?

A4: No, this particular module does not have built-in HART capabilities. For HART, a separate compatible interface is required.

Q5: How are the output channels protected?

A5: Each output channel is galvanically isolated and has built-in diagnostics for open-loop, short-circuit, and load monitoring.

Q6: Can the module be used in hazardous areas?

A6: It is certified for installation in systems operating in hazardous environments, but should be placed within certified enclosures.

Q7: What chassis or rack is compatible with FS-SAO-0220M?

A7: It is designed for Honeywell FSC system racks, specifically the ones supporting safety I/O modules.

Q8: What’s the recommended power supply voltage?

A8: The nominal power supply is 24 VDC.

Q9: Does the module require calibration?

A9: No user calibration is typically required; it is factory-calibrated and self-monitoring.

Q10: How long is the expected service life of the FS-SAO-0220M?

A10: When operated within specified conditions, the module has an expected service life exceeding 5 years.