The Duomo GS300M is a wall or panel mounted microprocessor based gas detector control. It can be configured to meet customer requirements. The following parameters can be changed using on board dip switches: Number of Sensors: Selectable from 1 -3. Type of Gas to be sensed: Selectable - Explosive or toxic.
Main Alarm delay period: Selectable - 3 or 20 seconds. Main Alarm relay action: Selectable - latching or auto reset. The GS300M has two plug in terminal blocks. One is for the incoming mains supply and alarm circuit wiring and the second is for connecting the sensor wiring. This reduces the chance of incorrect site wiring. The printed circuit board has an overload light which indicates when a short circuit or an overload has occurred on the sensor wiring.
- Microprocessor Control
- Wall or panel mounted
- 3 Zone Protection
- 4-20mA Signal Input
- Measuring Range 0-20%LEL
- IP44 Protective Rating
- EN50194 for Explosive Gases
- EN50291 for Toxic Gases
- 3 Year Guarantee
Duomo is recognised within the Gas industry for providing a comprehensive range of low cost, high reliability gas detection for many applications. We have installed and commissioned Natural Gas and Carbon Monoxide sensors in applications such as boiler rooms, kitchens, car parks, aircraft hangars, factories and shopping centres. The GS300M is the command centre for the complete range of Duomo Gas Sensors. All Duomo products are manufactured to meet relevant European Normatives and proposals for explosive and toxic gases.
When the remote sensors detect the presence of the Target Gas, a 4-20mA signal is sent to the detector, proportional to the level of gas. The GS300M then operates a pre-alarm relay - used for remote sirens or visual indicators, If the level of gas continues to rise then the second pre alarm is actuated. In the case of explosive gases, when the level of gas reaches 20%LEL, the main alarm relay is activated to break the electrical supply to the Gas Safety Shut Off Valve. The GS300M also has a seperate volt free sensor fault relay.This actuates if the correct return signal is not sensed by the Detector.The GS300M can be configured to detect explosive and/or toxic gases.
Please note that the delivery status of this product is:
In Stock| Free Delivery** |
| Royal Mail: items up to 1.5KG | £3.95+Vat |
| Parcelforce 48 Hour* (Usually two working days) | £5.75+Vat |
| Parcelforce 24 Hour* (Usually next work day) | £8.50+Vat |
* £6.00+Vat Surcharge will be added for orders from the Scotish Highlands and the Isle of man
** for orders over £100.00+Vat within the UK and Ireland
For delivery charges to Europe and the Rest of the World please
