Smoke detector/smoke alarm false alarm reason analysis and solution
There are several reasons for the false alarms generated by smoke detectors: 1. Cooking 2, when the power is turned on, the alarm will sound continuously. 3. Intermittent alarm sound 4. Influence of steam or moisture 5. Cigarette The generated smoke 6 and poor power supply contact.
Many false positives about cooking-generated smoke are emitted by ion alarms. Because this sensor is sensitive to very small smoke particles, even particles that are invisible to the human eye. The smoke particles produced by cooking at high temperatures are invisible to the human eye.
There are two basic solutions: either moving the position of the alarm or switching to another type of alarm that is less sensitive to cooking fumes. Keeping the alarm far away from the cooking area will make the smoke generated by cooking become thinner when it reaches the alarm, thus reducing false alarms. However, this method does not always work, especially when the flow of air brings the smoke generated by cooking to the alarm. Therefore, when moving the alarm, you must first understand the flow of air.
The second way to solve the problem is to replace the alarm. There are three options. One is to buy a new ion alarm with a mute button. As soon as the button alarm is activated, the alarm will stop for 15 minutes, so that there is enough time for the smoke generated by the cooking to diffuse. The second option is to buy a photo-electric smoke alarm. The cost of installing a battery's photoelectric alarm is no more than $20. Photoelectric alarms are less sensitive to tiny smoke particles, so there is no false alarm for smoke particles produced by cooking. Even if this makes the photoelectric alarm respond slower to a large fire (more tiny particles produced by a fire), the difference in time is very small.
The third option is a common device with two sensors. Ion sensors are used in combination with photosensors, and manufacturers make ions less sensitive to the smoke particles produced by cooking. In this way, the homeowner has the common advantages of both sensors, while also reducing false positives.
If the alarm continuously sounds an alarm, it may be that the alarm has accumulated too much dust or an alarm for too long, or the alarm may be faulty. Sensors in the alarm can become sensitive to smoke if used for too long. The alarm will also give an alarm if there is not much smoke. All home alarms should be replaced after ten years of use. Perhaps the alarm you bought is expensive, but even new alarms may be faulty. If a newly purchased alarm keeps sounding an alarm, it should be replaced with a new one.
What happens if there is no fire and intermittent alarms? If this happens, it may also be sensitive because the alarm is used for too long. Or there is too much dust inside, or it may be a malfunction of the alarm. But sometimes, the battery will make a loud noise about every minute when it is almost used up. Some people think that this is a kind of false positive.
But this sound is very different, because it emits a single, short sound, and it sounds about once every minute. If your alarm is intermittently emitting such a sound, you can replace the battery to see if it solves the problem. If not, then consider replacing the alarm or cleaning it. When cleaning the alarm, clean the end of the vacuum cleaner one by one close to all the small ports of the alarm. The dust accumulated on the alarm cover can be completely removed. If the dust still cannot be removed, it will only be replaced.
Steam or moisture can concentrate on the sensor and the board, and if too much water is concentrated, an alarm sounds. Install the alarm device far away from steam and moisture. For example, the alarm should not be installed in the corridor of the bathroom. This will solve the problem. However, if the alarm is supposed to work properly and now reacts to vapor or moisture, the problem may be the cause of the alarm aging. Older alarms become more sensitive and more responsive to vapors and moisture. Therefore, the occurrence of false alarms may also be that the alarms have to be replaced beyond the service life.
In general, smoke alarms do not respond to cigarette smoke unless the smoke is very heavy. For example, many smokers smoking in the same room may cause an alarm if standing close to the alarm device. The ground blows it, it also responds, but not always. If the alarm is too old, even if the smoke concentration is low, it will respond. So instead, we can also judge whether the alarm has aged.
There is no practical way to repair the battery. This may be because the smoke detector is too old or the battery is replaced, but it is also a signal to replace the alarm device.
This kind of parts are for Jcb engine , it includes Cylinder block, cylinder gasket, cylinder head, crankcase, cylinder liner and oil pan, piston, piston ring, piston pin, connecting rod, crankshaft, flywheel, torsion damper, balance shaft etc. Valve set includes valve, valve guide, valve seat and valve spring, etc. Valve transmission group mainly includes camshaft, timing gear, tappet and its guide rod, push rod, rocker arm and rocker arm shaft, etc. Its function is to make the intake and exhaust valves open and close at the time specified by the valve distribution phase, and ensure sufficient opening.
Engine Parts For Jcb,Engine Components,Jcb Engine Parts,Engine Parts for JCB Excavator
Hangzhou Holdwell Mechanical&Electrical Co.,LTD , https://www.holdwellparts.com