Gas releasing indicator—SHENZHEN HTI SANJIANG ELECTRONICS CO., LTD.

QM-ZSD-02E gas release alarm (hereinafter referred to as the gas release alarm) is a product used in conjunction with the fire alarm controller/gas fire extinguishing controller produced by our company. The gas release alarm is controlled by the microprocessor, can communicate with the controller in real time, and receive the control command sent by the controller. After receiving the start-up command of controller, the gas release alarm will be actuated, and “DO NOT ENTER! WHILE RELEASING GAS!” is displayed, and the harsh audible alarm signal will remind the field personnel not to enter the protective area. The gas release alarm is used as a sound alarm and flash alarm device in a gas fire-extinguishing protection area, and can be widely applied to places such as high-rise residential buildings, public places, hotels, entertainment places, factories, shopping malls,hospitals, schools, office buildings, stock exchanges and the like, and particularly suitable for places with low visibility or smoke generation.

Technical Parameters:

Executive standard	GB 26851-2011
Operating Voltage	Bus 24V (pulse modulation) + DC24V
Operating Current	static state: bus consumption current ≤ 500uA; in case of alarm: bus consumption current ≤ 4mA, DC24V consumption current ≤ 150mA
Service environment	temperature: 0℃ ~ +55℃ (±3℃), relative humidity: ≤ 95% (no condensation at 40℃± 2℃)
Flash frequency	1Hz~2Hz; light-emitting font surface brightness: 50cd/m2 ~300cd/m2; lighting and non-lighting time ratio: ≥ 3: 2
Acoustic pressure level	75dB ~120dB; modulation period: 0.2S ~ 5S
Weight	approximately 435 g,
Alarm temperature	indoor (non-residential)
Coding	electronic coding
Line system	four-wire system, no polarity signal two buses (L1, L2) +DC24V power line (no polarity-free during wiring)