FS24X-911-21-1 Honeywell Triple IR Flame Detector New

Global PLC Spare HUB's Insight

• The Honeywell FS24X-911-21-1 represents the pinnacle of WideBand IR™ technology in optical flame detection.
• Utilizes multi-spectrum Triple IR (IR3) sensors combined with "FireBulls" logic to reject false alarms like welding or sunlight.
• Rated for extreme sub-zero temperatures (-60°C), making it the primary choice for LNG and high-risk petrochemical sites.
• Integrates 200-foot detection range with a robust aluminum IP66 housing for maximum field reliability.

Configuration Breakdown

• Model: FS24X-911-21-1
• └── FS24X (Triple IR Multi-Spectrum Family)
•     ├── -9 (90° FOV / -60°C Extended Temp Range)
•     ├── 1 (Outputs: Fault, Alarm, Aux Relays, 4-20mA, Modbus)
•     ├── 1 (Approvals: FM, cFM, ATEX, IECEx Class I, Zone 1)
•     ├── -2 (Material: Copper-Free Aluminum)
•     └── 1 (Conduit: 3/4" NPT Entries)

Technical Specifications

• Brand: Honeywell
• Model: FS24X-911-21-1
• Sensing Range: 200 Feet (1 sq. ft. Heptane Fire)
• Field of View: 90° Horizontal / 80° Vertical
• Voltage: 18 to 32 VDC
• Analog Output: 0-20mA (Source or Sink)
• Temperature Range: -60°C to +85°C (-76°F to +185°F)
• Enclosure Rating: IP66 / NEMA 4X
• Mounting: 1/4 inch Diameter Holes
• Conduit Entries: Two (2) 3/4 inch NPT
• Shock/Vibration: Meets Mil Spec 810C Standards

Diagnostic Capabilities

• Current Loop Diagnostics: 2mA signals a "Dirty Lens" condition for proactive maintenance.
• Fault Logic: 0mA signals a critical system or hardware failure.
• Internal Heater: Prevents window icing and condensation to ensure clear optical paths.
• Digital Monitoring: Modbus RTU registers provide real-time hardware status and event logs.

Shipping and Warranty

• Logistics: Fast global transit via FedEx, UPS, or DHL.
• Dispatch Lead Time: 24-48 Hours for in-stock units.
• Guarantee: Professional 12-Month quality warranty.
• Packaging: Original factory-sealed packing with industrial anti-static protection.

Frequently Asked Questions (FAQ)

• Is the FS24X-911-21-1 solar-blind?
  Yes, the IR3 technology is designed to ignore solar radiation, preventing false trips from direct or reflected sunlight.
• Does it require a separate heater control?
  No, the heater is integrated and self-regulates to prevent condensation in cold or humid environments.
• What type of cable should be used for installation?
  Engineering experience recommends 12-22 AWG stranded conductors; avoid solid core wire in vibrating industrial environments.
• Can I interface this with a PLC via Modbus?
  Absolutely, this model supports Modbus RTU, allowing the PLC to read specific fault codes and alarm status.
• What is the typical response time?
  Under typical conditions, the unit responds to a verified fire signature in 2 to 5 seconds.

Selection and Purchasing Guide

• Confirm the hazard zone classification; this unit is rated for Class I, Zone 1 environments.
• Evaluate the FOV requirements; the 90° cone of view is optimized for long-range, focused detection.
• Check the conduit entry requirements; ensure your cable glands match the 3/4" NPT threading.
• Contact our team for bulk pricing on safety-instrumented system (SIS) upgrades.

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