B
Series explosion-proof sound and light alarm
1. Overview
B series explosion-proof sound and light alarms (alarms for short) are non-coded alarms, suitable for installation in explosive gas environments containing grade II (IIB) temperature groups. When an accident or fire occurs at the production site In case of emergency, the control signal sent from the fire alarm controller activates the audible and visual alarm circuit and sends out audible and visual alarm signals to complete the alarm purpose. The alarm can also be used in conjunction with the manual alarm button to achieve simple sound and light alarm purposes. The alarm can be used with fire alarm controllers from any manufacturer at home and abroad. Heron explosion-proof sound and light alarm uses ultra-bright luminous tubes, which are clearly visible. The decibel is above!
This product complies with the requirements of Part B Electrical Equipment for Explosive Gas Atmospheres: General Requirements, Part B Electrical Equipment for Explosive Gas Atmospheres: Explosionproof Type, and Part B Electrical Equipment for Explosive Gas Atmospheres: Intrinsically Safe Types. It has passed the inspection by the state-designated inspection unit and obtained the explosion-proof certificate.
2. Scope of application
. Explosive gas mixture hazardous locations: District, District
. Explosive gas mixture: Class II, IIB, II. Temperature group:
Three. Technical parameters
Temperature range: ℃～+℃
Relative humidity: % non-condensing
Atmospheric pressure: ~
Power supply voltage.
Operating current during alarm: ()
Sound intensity: ~B
Protection level:
Weight:
4. Product Features
.The shell is made of aluminum alloy die-casting, and the surface is sprayed with high-voltage electrostatic spray
.Toughened glass cover, stainless steel exposed fasteners, the protective grille is galvanized and sprayed with plastic on the surface, double anti-corrosion
.The tempered glass cover has strong impact resistance and is available in red, yellow, blue and other colors
5. Precautions
It is strictly prohibited to dismantle with electricity in flammable and explosive places.
Do not damage the flameproof surface during installation and keep it clean. The fastening screws of the flameproof surface should be tightened evenly, and be careful not to include foreign matter on the flameproof surface.
After long-term use, the performance of the alarm must be checked regularly to see if it is intact. If it fails or is damaged, it must be repaired by professionals.
Fanguang manufacturer specializes in BJJ series explosion-proof sound and light alarm lights