How many alarms does the ammonia gas detector exceed? This depends on what field it is used for, and what purpose, before we can decide how many alarms to remind us. Next, introduce the application of ammonia detector in the following three aspects.
The first aspect: the application in human safety protection. This depends on the safety standard of ammonia to the human body. It is not to be determined by the meter. Many instruments can set alarm points arbitrarily. Therefore, many of the alarm points of the instruments are initially set according to the range of the instrument before leaving the factory. Gas safety standards. Therefore, we must find the safety standards for the use of ammonia to determine how appropriate the setting is. Combined with the contents of the GBS 2.1-2006 Occupational Exposure Limits for Workplaces, Occupational Exposure Limits, and Chemical Harmful Factors, human body safety valve The value concentration should not exceed the concentration of 20mg / m3 or 26ppm, so we need to set 26ppm on the alarm value in the ammonia detector against the standard. At this time, as soon as the ammonia concentration exceeds the set level, the instrument will give an alarm, and personnel must be alert to prevent poisoning.
Second aspect: Application in the explosion hazard of ammonia: Ammonia is also a flammable gas. Excessive leakage will also cause combustion explosion. Therefore, the alarm point set for the detector applied for the purpose of combustion explosion must be the lower limit of ammonia explosion. The 25% ratio is an alarm reminder point to prevent excessive ammonia concentration from exploding. The concentration of ammonia explosion monitored by the explosion dropped to 15% VOL. Therefore, the alarm point should be set to 25% of 15% vol as the first-level alarm point.
The third aspect: the safety standard of ammonia in the animal husbandry industry: We said earlier that the application of ammonia in human safety and combustion explosion sets alarm points. Now we are looking at how to set the ammonia detector in the breeding industry. The alarm point has been proved by a number of experiments that livestock and poultry in the aquaculture industry are exposed to ammonia concentrations exceeding 10mg / m3, that is, a concentration above 13ppm, which will increase the ability to interfere with diseases and easily become ill. We recommend setting the ammonia alarm point not to exceed 13ppm. Once it exceeds the limit, please ventilate as soon as possible, and keep the animal house dry and ventilated in order to effectively ensure the healthy growth of livestock and poultry. Therefore, the ammonia gas detector is also widely used in animal husbandry.
From the application of the above aspects, we can see that different applications need to set the alarm point value of different values. Do not use the initial alarm point of the gas detector manufacturer as your applicable standard. You must find out the purpose and object of use before you can set a safe alarm point scientifically. In order to know how many alarms the ammonia detector has exceeded, it is correct.
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