An audible and visual alarm is an electronic product that serves as a warning or warning to take certain actions through sound, light, air pressure, and other means to avoid or prevent the occurrence of an event. Alarm is divided into mechanical alarm and electronic alarm. With the advancement of technology, mechanical alarms are increasingly being replaced by advanced electronic alarms, which are often used in areas such as system failures, safety precautions, transportation, medical assistance, emergency relief, induction detection, and are closely related to social production. For example, door magnetic sensors and gas induction alarms. What is a sound and light alarm specifically introduced to you by Siemens fire alarm manufacturers? What are the functions and effects of sound and light alarms?

Sound and light alarm (also known as sound and light alarm) is an alarm signal device used in high-risk areas to send warning signals to people through sound and various lights. The explosion-proof sound and light alarm is suitable for equipment in explosive gas environments containing Class IIC and T6 temperature groups. It can also be used in Zone 1 and Zone 2 explosion-proof places with explosion-proof requirements in professions such as petroleum and chemical industries, and can also be used outdoors. Non coding type can be used in conjunction with fire alarm controllers from any domestic or foreign manufacturer. When an incident or emergency situation such as a fire occurs at the production site, the control signal sent by the fire alarm controller activates the sound and light alarm circuit, generating sound and light alarm signals, and completing the alarm intention. It can also be used in conjunction with manual alarm buttons to achieve simple sound and light alarm intentions. Explosion proof products must comply with the requirements of the GB3836 series of specifications (satisfied with GB3836.1-2000 "General Requirements for Explosion proof Electrical Equipment for Explosive Environments" and GB3836.2-2000 "Explosion proof Electrical Equipment for Explosive Environments" d "), and have been determined by a nationally designated testing organization and obtained an explosion-proof qualification certificate. The alarm shell is made of all stainless steel, and the lamp shell has strong impact resistance. It is equipped with a 180 clear and visible ultra high brightness LED light emitting tube and a super strong buzzer. It has the characteristics of stable operation, long service life, low power consumption, and is not affected by pollutants and water.

Function and Effect:

The sound and light alarm is set up to meet the special requirements of customers for alarm loudness and equipment orientation. Send both sound and light alarm signals together. Product specific categories: steel metallurgy, telecommunications towers, lifting machinery, engineering machinery, port terminals, transportation, wind power generation, ocean going vessels and other professions; It is a component product in the industrial alarm system.

Precautions during application:

Once the fixed equipment of the sound and light alarm is in place, its orientation is not easy to change. When applying it in detail, the following points should be considered.

(1) Identify the potential leakage points of the equipment to be monitored, analyze their leakage pressure, direction, and other factors, and draw a probe orientation distribution map. Divide the severity of leakage into three levels: I, II, and III.

(2) Based on detailed factors such as airflow direction and wind direction of the location, determine the direction of toxic gas leakage when there is a lot of leakage.

(3) Based on the density of leaked gas (greater than or less than air), combined with the trend of air activity, a three-dimensional trend map of leaked gas activity is summarized, and an initial point plan is made at the downstream direction of its activity.

(4) Discuss whether the leakage situation at the leakage point is micro leakage or jet leakage. If it is a minor leak, the location of the point should be closer to the leak point. If it is a jet leakage, it should be slightly away from the leakage point. Summarize these situations and develop a final point setting plan. In this way, the quantity and types of required purchases can be budgeted out.

(5) Regarding places with significant toxic gas leakage, according to relevant regulations, a detection point should be set up every 10-20 meters apart. For small and non continuous pump rooms without personnel on duty, attention should be paid to the possibility of toxic gas leakage. Generally, a detector should be installed at the lower air outlet.

(6) For places with hydrogen leakage, the detector equipment should be placed flat above the leakage point.

(7) For media with a gas density greater than air, the detector equipment should be placed on the lower plane below the leakage point, and attention should be paid to the characteristics of the surrounding environment. Special attention should be paid to the setting of safety monitoring points in places with simple accumulation of toxic gases.

(8) Regarding the open environment for the diffusion and escape of toxic gases, if there is a lack of excellent ventilation conditions, it is easy to make the toxic gas content in the air of a certain area close to or reach the lower explosive limit concentration. These are safety monitoring points that cannot be ignored. Based on the analysis of the on-site incident, more than half of it was formed by incorrect equipment and calibration. Therefore, it is necessary to introduce the correct equipment and precautions for calibration to reduce defects.