When the SG500 senses the presence of gas it sends a 4-20mA signal to the detector proportional to the level of gas.
Suitable or boiler rooms, kitchens, car parks, aircraft hangers, factories and shopping centres.
When the SG500 senses the presence of gas it sends a 4-20mA signal to the detector proportional to the level of gas. The detector then operates a pre-alarm relay - used for remote sirens or visual indicators. If the level of gas continues to rise then the main alarm relay is activated to break the electrical supply to a safety shut off valve and is fixed at 20% LEL of natural gas.
Features and benefits:
110 x 50 x 35 mm
2 years, extendable to 3 years when registered at www.duomo.co.uk/product-warranty/
Ingress protection (minimum)
To BS EN 60529, IP30.