Overview
The SG50-F-IR3-AS10 is Teledyne’s Spyglass triple-spectrum infrared flame detector, designed for industrial fire detection where reliability and speed are critical. This detector offers reliable detection of hydrocarbon and non-hydrocarbon fires, including hydrogen, hydrogen/methane blends, ammonia, and silane. The fixed-mount configuration with stainless steel housing (electro-polished 316) delivers NEMA 4X/6P protection suitable for harsh industrial environments, refineries, manufacturing facilities, and hazardous zones.
Key Features
- Triple-Spectrum IR Detection: Analyzes three distinct infrared wavelengths simultaneously, providing optimized hydrocarbon fire detection and industry-leading false alarm immunity.
- Fast Response: 40ms detection time for fast burst or explosion, with detection distances up to 100 feet for hydrogen fires.
- Operational Outputs: 3 relays (Alarm, Auxiliary, Fault) with SPST volt-free contacts rated 2A at 30 VDC; 0-20mA stepped current output in 3-wire and 4-wire configurations; HART rev 7.0 and Modbus RTU compatible.
- Self-Diagnostics: Built-in-Test (BIT) for automatic and manual self-test of window cleanliness and overall detector operation.
- Rugged Construction: IP66 & 68 rated enclosure with -55°C to +85°C operating temperature range, rated for up to 99% RH non-condensing humidity.
Technical Specifications
| Parameter | Specification |
| Detection Technology | Triple Infrared (IR3) |
| Operating Temperature Range | -55°C to +85°C (-67°F to +185°F) |
| Storage Temperature Range | -55°C to +85°C |
| Humidity Rating | Up to 99% RH, non-condensing |
| Enclosure Rating | IP66 & IP68 (2m, 24hr immersion) |
| Housing Material | Stainless Steel 316, Electro-Polished |
| Dimensions (Detector) | 140 x 90 x 90 mm (5.51 x 3.54 x 3.54 inches) |
| Weight (Detector) | 3.0 kg (6.6 lbs) |
| Weight (Tilt Mount) | 1.5 kg (3.3 lbs) |
| Field of View | 90° Horizontal, 75° Vertical |
| Relay Outputs | 3 SPST volt-free relays, 2A at 30 VDC (Alarm, Auxiliary, Fault) |
| Analog Output | 0-20mA stepped current, 3-wire and 4-wire configurations |
| Communication Protocols | HART 7.0, Modbus RTU, RS-485 |
| Compliance | FMus, FMc, ATEX, IECEx, UKEX, NFPA33 |
| Sensitivity Levels | 5 ranges: Extreme, High, Medium, Low, Very Low |
| Time Delay | 0–30 seconds adjustable |
Typical Applications
- Oil and gas refineries and processing plants
- LNG and hydrogen production facilities
- Chemical manufacturing and storage areas
- Power generation plants and substations
- Automotive spray paint booths (NFPA33 compliant)
- Machinery enclosures and equipment protection
- Hazardous area monitoring in ATEX-regulated zones
Compatibility & Replacements
Compatible With
- Fire alarm control panels supporting 0-20mA, relay, and HART inputs
- Building management systems (BMS) with analog and digital inputs
- PLC and DCS systems with HART communicator modules
- Modbus RTU networks via RS-485 interface
- Any control logic accepting volt-free relay contact signals
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or Teledyne before ordering. The SG50-F-IR3-AS10 variant designation indicates specific output and mounting configurations; ensure your control system supports the output type (0-20mA, relay, HART) prior to replacement.
Works With
- HART Communicator software for configuration and diagnostics
- Modbus RTU master devices and industrial networks
- Legacy fire alarm systems with analog and relay input cards
- IEC 61508 safety-critical instrumentation systems
- Teledyne flame simulator kits for testing and commissioning
