Product Short Description
Product Name: Safety Manager 16-Channel Safety Analog Input Module
Product Overview: The FS-SAI-1620MA (internal reference FC-SAI-1620m V1.4) is a high-density, safety-certified analog input module within the Honeywell Safety Manager architecture. It provides 16 galvanically isolated channels for interfacing with 4–20 mA transmitters and other analog field sensors, supporting SIL-3 safety requirements for Emergency Shutdown (ESD) and Fire & Gas (F&G) systems.
Description
Technical Specifications:
- Manufacturer: Honeywell
- Model: FS-SAI-1620MA / FC-SAI-1620m
- Hardware Version: V1.4
- Input Type: Analog (0–20 mA / 4–20 mA)
- Number of Channels: 16 isolated channels
- A/D Converter: 16-bit per channel
- Dimensions: 2 cm × 19 cm × 12.8 cm
- Weight: 0.14 kg
- Country of Origin: USA
- Loop Power: Configured via FTA (Sink or Source depending on FTA model)
Key Features: 16-bit A/D conversion per channel for high-fidelity acquisition; comprehensive internal self-test diagnosing component drift and converter failures; galvanic isolation and differential input filtering for superior EMI immunity; ultra-slim 2 cm form factor for maximum I/O density; hot-swappable redundancy (in redundant pairs, live replacement supported).
Working Principle: Each channel’s 4–20 mA signal is isolated and converted by a dedicated 16-bit ADC. Continuous self-diagnostics detect open-wire, short-circuit, out-of-range (<3.8 mA or >21 mA) and transmitter faults, raising alarms to the Safety Manager logic solver which executes safety decisions.
Application Scenarios: Safety Instrumented Systems (SIS); ESD and F&G systems; pressure, temperature, flow and level acquisition for Safety Manager; offshore platforms and modular skids where I/O density and availability are critical.
Installation Requirements: Install in Safety Manager chassis; pair with appropriate FTA (e.g., FTA-T-14 for analog input) to define loop-power sink/source; verify software revision in Safety Builder supports V1.4; for redundancy, install as a redundant pair to enable hot-swap.
Usage Notes: V1.4 is generally backward-compatible with earlier V1.x versions; confirm firmware support for specific hardware features; loop-power distribution depends on the paired FTA — refer to the wiring diagram.
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