Refrigerant Sensor (FGS-REF)
The New Flamefast 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 then just for alarm conditions like semi-conductor sensors.
Top Key Features
- 24V AC/DC Power Supply
- Universal Refrigerant sensor
- Pre-calibrated for all gases
- Fully temperature compensated
- Traffic Light LCD readout
- BACnet and Modbus
- UK Manufactured
Overview
The New Flamefast 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 then just for alarm conditions like semi-conductor sensors.
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, whilst providing the signature Flamefast Traffic Light display, all in an aesthetically pleasing housing.
Key Features
- 24V AC/DC Power Supply
- Universal Refrigerant sensor
- Pre-calibrated for all gases
- Fully temperature compensated
- Traffic Light LCD readout
- BACnet and Modbus
- 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
- UK MANUFACTURED
Dimensions
| Height: | 125 mm |
|---|---|
| Width: | 86 mm |
| Depth: | 36 mm |
Technical Specifications
| Power Supply: | 24V AC/DC ± 10% | ||||
|---|---|---|---|---|---|
| Power Consumption: | 100mA | ||||
| BACnet / Comms Output: | BACnet MS/TP and Modbus RTU Baud: 9600, Addresses: 32 Customisable through App with USB | ||||
| 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: | IP40 | ||||
| Housing Material: | PC/ABS | ||||
| Colour: | Pure White (RAL9010) | ||||
| Approval: | CE, UKCA |
Installer Selectable Options
| Failsafe option | Energise / De-energise Relay 0-10V / 2-10V |
| Alarm Latching | Enable/Disable |
| Audible Alarm | Enable/Disable |
| Refrigerant Type | See Manual |
| THROUGH APP | |
| LCD Backlight | Enable/Disable |
| Auto Zero Calibration | Enable/Disable |
| Set-points | Alarm1 / Alarm 2 / Relay |
| Range | Analogue Output Scaling |
| Display | Gas Concentration / Formula |
| BACnet Properties | Identifier, Description, Location |
NEED THE REQUIREMENTS?

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Part Numbers & Options / Accessories
| Part No | Description | Range | Life (years) |
| FGS-REF | Universal Refrigerant Sensor | 2,000ppm | 5 |






