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Honeywell
Honeywell FS24X Plus Flame Detector
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Triple-IR flame detector. Hydrocarbon/H2; to 60 m class; SIL2-oriented. RFQ + engineer selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Approvals
ATEX, IECEx, cFMus, INMETRO, SIL2, FM3260, EN54-10; marine options
Type
Triple IR (IR3) flame detector — FS24X Plus
Detection
Hydrocarbon and hydrogen fires; WideBand IR solid-state sensors
Field Of View
90° cone (120° at 50% on-axis range)
Sensitivity
Low 15 m / Medium 30 m / High 45 m / Very High 60 m to 0.1 m² n-Heptane
Response Time
Typically ≤5 s (max 10 s FM witnessed)
Fits hydrocarbon or hydrogen fire duties where you need a Honeywell FS24X Plus triple-IR detector with HART/Modbus and SIL2-oriented approvals.
Key advantages
- IR3 detector — Triple IR (IR3) flame detector — FS24X Plus
- Fuels — Hydrocarbon and hydrogen fires; WideBand IR solid-state sensors
- Sensitivity steps — Low 15 m / Medium 30 m / High 45 m / Very High 60 m to 0.1 m² n-Heptane
- Outputs — 4–20 mA; Alarm/Fault/Aux relays; HART; Modbus RS-485; USB
- Approvals (published) — ATEX, IECEx, cFMus, INMETRO, SIL2, FM3260, EN54-10; marine options
Typical applications
- Hydrocarbon process flame detection with IR3 WideBand sensors.
- Hydrogen fire detection duties where FS24X Plus is specified.
- SIL2 / FM3260 / EN54-10 oriented projects needing HART or Modbus.
Selection guide
- Sensitivity — Low 15 m / Medium 30 m / High 45 m / Very High 60 m to 0.1 m² n-Heptane
- FOV — 90° cone (120° at 50% on-axis range)
- Supply — 24 VDC nominal (18–32 VDC)
- Temperature — −55 to +75 °C (−50 to +75 °C North America)
- Approvals needed — confirm ATEX/IECEx/cFMus/INMETRO/SIL2/marine options on order.
Common mistakes
- Claiming every approval without the ordered certificate package.
- Ignoring North America temperature window (−50…+75 °C) vs global (−55…+75 °C).
- Under-specifying Aux relay logic for the suppression panel.
When to RFQ / what to tell us
- Fuel (hydrocarbon/hydrogen), distance, sensitivity.
- Required approvals; HART/Modbus/USB needs; quantity; ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 103758 |
| Brand | Honeywell |
| Model | FS24X Plus |
| Product type | Flame Detector |
| Type | Triple IR (IR3) flame detector — FS24X Plus |
| Detection | Hydrocarbon and hydrogen fires; WideBand IR solid-state sensors |
| Field of view | 90° cone (120° at 50% on-axis range) |
| Sensitivity | Low 15 m / Medium 30 m / High 45 m / Very High 60 m to 0.1 m² n-Heptane |
| Response time | Typically ≤5 s (max 10 s FM witnessed) |
| Supply | 24 VDC nominal (18–32 VDC) |
| Outputs | 4–20 mA; Alarm/Fault/Aux relays; HART; Modbus RS-485; USB |
| Operating temperature | −55 to +75 °C (−50 to +75 °C North America) |
| Approvals (published) | ATEX, IECEx, cFMus, INMETRO, SIL2, FM3260, EN54-10; marine options |
Documents
FAQ
Q: Response time? A: Typically ≤5 s (max 10 s FM witnessed) per OEM.
Q: FOV? A: 90° cone (120° at 50% on-axis range).
Q: What should I send for a quote? A: Fuel, distance, approvals, outputs, quantity.
Links
| Parameter | Value |
|---|---|
| Approvals | ATEX, IECEx, cFMus, INMETRO, SIL2, FM3260, EN54-10; marine options |
| Type | Triple IR (IR3) flame detector — FS24X Plus |
| Detection | Hydrocarbon and hydrogen fires; WideBand IR solid-state sensors |
| Field Of View | 90° cone (120° at 50% on-axis range) |
| Sensitivity | Low 15 m / Medium 30 m / High 45 m / Very High 60 m to 0.1 m² n-Heptane |
| Response Time | Typically ≤5 s (max 10 s FM witnessed) |
| Supply | 24 VDC nominal (18–32 VDC) |
| Outputs | 4–20 mA; Alarm/Fault/Aux relays; HART; Modbus RS-485; USB |
| Operating Temperature | −55 to +75 °C (−50 to +75 °C North America) |
| Document | FS24X Plus datasheet + user manual 1701M5001 |