Duct Gas Sensor (DFGS)
The Flamefast Duct Mounted Gas Sensor provides is one of the most versatile gas sensors available on the market.
With an Analogue and Relay output, as well as a BACnet MS/TP interface, the DFGS can connect directly into most third-party controllers, all housed in a robust duct enclosure for monitoring supply or return air systems.
Top Key Features
- 24 AC/DC Power Supply
- Pre-calibrated
- Traffic light LCD readout
- Volt free contact output
- UK Manufactured
Overview
The Flamefast Duct Mounted Gas Sensor provides is one of the most versatile gas sensors available on the market.
With an Analogue and Relay output, as well as a BACnet MS/TP interface, the DFGS can connect directly into most third-party controllers, all housed in a robust duct enclosure for monitoring supply or return air systems.
The broadband Pellistor and Infra-red Hydro-carbon sensors can be calibrated to suit most combustible gases with the option to factory callibrate and rename the sensor for the specific gas. Flamefast can also offer a full range of toxic gas sensors, including H2S, HCN and many more (please contact for details).
Key Features
- 24 AC/DC Power Supply
- Pre-calibrated
- Traffic light LCD readout
- Volt free contact output
- BACnet MS/TP over RS485
- Latching function with Reset input
- Analogue output
- Simple configuration and calibration
- Calibration and ‘End of Life’ reminders
- Oxygen Sensors monitor Enrichment and Depletion as standard
- 200mm Duct Probe
- UK MANUFACTURED
Dimensions
| Height: | 152 mm |
|---|---|
| Width: | 110 mm |
| Depth: | 50 mm |
| Probe Length: | 200 mm |
Technical Specifications
| Power Supply: | 24V AC/DC ± 10% | ||||
|---|---|---|---|---|---|
| Power Consumption: | 100mA | ||||
| BACnet: | MS/TP over RS485 Baud: 9k6, 19k2, 38k4 or 76k8 127 Address (1/10th Load) Full specification available on request | ||||
| Analogue Outputs: | 0/2-10V Full scale linear | ||||
| VFC Output: | SPDT - 1A @ 24V Max | ||||
| Audible: | 60dB @30cm | ||||
| Operation Conditions: |
| ||||
| Sampling Method: | Diffusion | ||||
| Warm-up Time: | 60 Seconds (24 Hours for full stability) | ||||
| Response Time (T90): | < 60 Seconds (Adjustable) | ||||
| Housing Material: | PC/ABS | ||||
| IP Rating: | IP66 (external to duct) | ||||
| Colour: | Black/Clear | ||||
| Approval: | CE, UKCA |
Installer Selectable Options
| LCD backlight | Enable/Disable |
| Failsafe option | Energise/De-energise Relay |
| 0-10V or 2-10V | |
| Alarm Latching | Enable/Disable |
| Audible Alarm | Enable/Disable |
| Auto Zero Calibration | Enable/Disable |
| Alarm1, Alarm 2 & Relay Set-points | |
| Analogue Output Range | |
| Display Gas Concentration or Formula | |
Quality and Reliability as Standard
Part Numbers & Options / Accessories
| Part No | Gas | Range | Typical Life (years) |
| DFGS-NG | Natural Gas (Methane) | 100% LEL | 5 |
| DFGS-LPG | Propane | 100% LEL | 5 |
| DFGS-H2 | Hydrogen (LEL) | 100% LEL | 5 |
| DFGS-HC | Hydro-carbon (Pellistor) | 100% LEL | 5 |
| DFGS-IRHC | Hydro-carbon (Infra-red) | 100% LEL | 5 |
| DFGS-SF6 | Sulfur Hexafluoride | 1,000ppm | 5 |
| DFGS-CO2 | Carbon Dioxide | 5% | 5 |
| DFGS-CO | Carbon Monoxide (Plant/Carpark) | 200ppm | 5 |
| DFGS-NO2 | Nitrogen Dioxide | 5ppm | 3 |
| DFGS-NH3 | Ammonia | 100ppm | 3 |
| DFGS-CL2 | Chlorine | 5ppm | 3 |
| DFGS-H2e | Hydrogen (Electrochemical) | 2,000ppm | 3 |
| DFGS-SO2 | Sulphur Dioxide | 5ppm | 3 |
| DFGS-O2 | Oxygen | 25% | 5 |
OTHER GASES AVAILABLE ON REQUEST
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