DatasheetIn industries reliant on hydrogen, detecting its colourless gas and flame presents a critical safety concern. Unlike traditional multi-spectral flame detectors, which lack the capability to discern hydrogen flames, the Fgard H2 is optimised exclusively for hydrogen flame detection, ensuring your people and your facilities are kept safe.
The Fgard H2 delivers unparalleled performance, with a response time of just 4 seconds ensuring swift and reliable detection even in demanding industrial environments.
Its intelligent heated optics mean there is no condensation, ice, or water build up on the sensor, with advanced optical verification and automatic tests verify the cleanliness of the lens and electronic circuitry.
Designed to minimise the risk of false alarms, the Fgard H2 is setting a new standard in reliability, with a market-leading 5 year warranty period for a hydrogen flame detector. This commitment to quality is underscored by the endorsement of Factory Mutual (FM), validating the performance of Fgard H2 for complete peace of mind.
Fast Detection Time
- Fgard H2 delivers unparalleled performance, with a response time of just 4 seconds
- Can detect a 36-inch plume size hydrogen flame at a distance of 40 meters
- Provides swift and reliable detection even in demanding industrial environments
Reliability
- Setting a new standard in reliability, Fgard H2 comes with a market-leading 5 year warranty period for a hydrogen flame detector
- Endorsed by Factory Mutual (FM)
- Intelligent heated optics mean no risk of condensation, ice or water on the lens for unimpaired performance in all weather
Advanced Optical Verification
- Automatic test verifies cleanliness of the lens and electronic circuitry
- No need for reflector optical checks
- Large optical surface results in far fewer false alarms
Specifications
| Operating temp | -60°C to +85°C (-76°F to +185°F) |
| Storage temp | -60°C to +85°C (-76°F to +185°F) |
| Humidity | 0-100 % RH (Non-condensing) |
| Operating voltage | 24 Vdc Nominal – (Range 18 to 32 Vdc) |
| Power consumption | 3W minimum (without heater), 12 W maximum (with heater). |
| Speed of response | 2-5 seconds (Typical) at 40 m (131 feet) |
| Dimensions | 100 mm Dia x 200 mm (4” Dia x 8” L) |
| Material | Copper free aluminum or 316 stainless steel |
| Entry size | 3/4 inch NPT or M25 |
| Weight | Alu 5.5 lbs (2.5 Kg) / SS 13.2 lbs (6.0kg) |
| Outputs | Relay contacts (DPDT 2A at 30Vdc) – alarm and fault. 0-20mA plus fault alerts, HART® |
| Certifications | Class 1 Div 1 Groups B, C, D T4 Ambient –50°C to +85°C Class 1 Zone 1 AEx/Ex db IIC T4 Ambient –50°C to +85°C ATEX II 2 G Ex db IIC T4 IECEx Ex db IIC T4 Ambient –60°C to +85°C INMETRO Ex db IIC T4 – Pending PESO Ex db IIC T4 Ta= -60°C to +85°C – Pending |
| Performance approvals | FM 3260 EN 54-10 Ingress – IP67 /NEMA type 6P SIL2 – IEC 61508 |