The MSA FlameGard 5 UV/IR Flame Detector is designed to detect fires while maintaining excellent immunity to false alarms. It provides alarm outputs directly from the detector, and the FlameGard 5 UV/IR-H2 model is specifically designed for hydrogen fire detection.
Note: This product is obsolete and has been replaced by the FL500.
The detector monitors both ultraviolet (UV) and infrared (IR) spectral ranges to accurately detect fires while reducing false alarms caused by lightning, arc welding, hot objects, and other radiation sources.
The electronics are housed in an explosion-proof aluminium enclosure, with an optional stainless steel version available for harsh environments.
Modbus and HART communication provide alarm status, fault information, troubleshooting, and programming capabilities without requiring additional wiring.
The built-in COPM self-test automatically checks the optical path and electronic circuitry every minute to ensure reliable operation.
| Parameter | Specification |
|---|---|
| Field of View | Oval cone of view (100° horizontal and 90° vertical). 50% of on-axis distance horizontally FoV can extend to 120° (±60°). |
| Sensitivity | Low: 65 ft (20 m), Medium: 130 ft (40 m), High: 195 ft (59 m), Very High: 275 ft (84 m) to 1 ft² (0.1 m²) n-Heptane fire. Configurable via Flame Manager. |
| Response Time | Typically 5 seconds, maximum 10 seconds. Under specific conditions, approximately 3–5 seconds. |
| Operating Voltage | 24 VDC nominal (18–32 VDC), regulated. |
| Power Consumption | 1.8 W (nominal), 2.4 W (alarm), 12 W maximum (heater ON, 100% duty cycle). |
| Output Relays | Alarm, Fault, and Auxiliary: SPDT (NO/NC), de-energized/energized, latching/non-latching, rated 2 A at 32 VDC. |
| Analog Output | 4–20 mA (Source, Sink, or Isolated). Refer to technical manual for wiring configuration. |
| Digital Communications |
Modbus: RS-485 FP2: RS-485 or USB (Honeywell Proprietary Protocol) HART 7 over 4–20 mA |
| Operating Temperature | -55°C to +75°C (-67°F to +167°F). North America: -50°C to +75°C (-58°F to +167°F). |
| Storage Temperature | -55°C to +85°C (-67°F to +185°F). North America: -50°C to +85°C (-58°F to +185°F). |
| Humidity Range | 0% to 99% Relative Humidity. |
| Cable / Conduit Entries | 2 × M25 or 2 × ¾" NPT. |
| Enclosure Materials | Low copper aluminum with marine-grade paint or electropolished CF8M stainless steel. |
| Enclosure Type | IP66 / IP67 (Type 4X). |
| Hazardous Location Certifications |
ATEX: II 2 G Ex db IIC T5 Gb; II 2 D Ex tb IIIC T135°C Db IP66/67 IECEx: Ex db IIC T5 Gb; Ex tb IIIC T135°C Db IP66/67 cFMus: Class I, Div 1 Groups A, B, C, D Class II/III, Div 1 Groups E, F, G, NEMA 4X INMETRO, CU-TR*, CCC* |
| Performance Certifications |
FM 3260 EN 54-10: Class 1 (Medium, High & Very High Sensitivities), Class 2 (Low Sensitivity) |
| Safety Certification | IEC 61508 SIL 2 certified by TÜV SÜD. |
| Marine Certifications | Maritime Type Approved to ABS, Lloyd's, BV, DNV, MED, USCG. |
| Weight (Excluding Accessories) | Aluminum: 1.7 kg (3.7 lb); Stainless Steel: 3.4 kg (7.4 lb). |
12 litre can with push button and spray straw for quick and easy bump checking. Not suitable for calibration.
| Part Number | Gas Mixture |
|---|---|
| G1-H2S-25-N-12 | 25ppm H2S |
| G1-CO-100-N-12 | 100ppm CO |
| G1-O2-18-N-12 | 18% O2 |
| G4-QUAD-5-12 | 25ppm H2S, 100ppm CO, 2.2% CH4, 18% O2 |
| G5-QUINT-3-12 | 25ppm H2S, 100ppm CO, 2.2% CH4, 0.5% CO2, 18% O2 |
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