Duct Refrigerant Sensor (DFGS-REF)
The New Flamefast Duct Refrigerant Sensor allows for accurate monitoring of a wide range of refrigerant gases from a single unit. Using highly stable infra-red technology and full temperature compensation on all gases, it can be used for detection, rather than just for alarm conditions like semi-conductor sensors.ccurate monitoring of a wide range of refrigerant sensors from a single unit.
Top Key Features
- 24V AC/DC Power Supply
- Universal Refrigerant sensor
- Pre-calibrated for all gases
- Fully temperature compensated
- Traffic Light LCD readout
- UK Manufactured
Overview
The New Flamefast Duct Refrigerant Sensor allows for accurate monitoring of a wide range of refrigerant gases from a single unit. Using highly stable infra-red technology and full temperature compensation on all gases, it can be used for detection, rather than just for alarm conditions like semi-conductor sensors.ccurate monitoring of a wide range of refrigerant sensors from a single unit.
To calibrate, only 1,000ppm R1234ze is required, then simply select your target gas from the calibration menu.
The full list of gases monitored is:
| - R404a | - R407f | - R227 |
| - R134a | - R1234yf | - R22 |
| - R125 | - R449a | - R513a |
| - R407a | - R507 | - R422d |
| - R417a | - R123 | - R1233zd |
| - R448a | - R410a | - R407c |
| - R32 | - R452b | - R1234ze |
With a BACnet MS/TP interface, a 0-10V and relay output, the refrigerant sensor in one of the most versatile units available, all housed in a robust duct enclosure for monitoring supply or return air systems.
Key Features
- 24V AC/DC Power Supply
- Universal Refrigerant sensor
- Pre-calibrated for all gases
- Fully temperature compensated
- Traffic Light LCD readout
- BACnet MS/TP over RS485
- Latching function with Reset input
- Volt Free Contact output
- Analogue output
- Calibration and ‘End of Life’ reminders
- Mounts onto any standard single gang junction box or conduit box
- 180mm Duct Probe (other lengths on request)
- UK MANUFACTURED
Dimensions
| Height: | 158 mm |
|---|---|
| Width: | 112 mm |
| Depth: | 58 mm |
| Probe Length: | 180 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) | ||||
| IP Rating: | IP66 (external to duct) | ||||
| Housing Material: | PC/ABS | ||||
| Colour: | Grey/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 |
| Set-points | Alarm1 / Alarm 2 / Relay |
| Range | Analogue Output |
| Display | Gas Concentration / Formula |
| Refrigerant Gas Type | See Manual |
Quality and Reliability as Standard
Part Numbers & Options / Accessories
| Part No | Description | Range | Life (years) |
| DFGS-REF | Duct Universal Refrigerant Sensor | 2,000ppm | 5 |
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