Three main paths affecting the flammable gas alarm in the electromagnetic environment


There are three main paths affecting the flammable gas […]

There are three main paths affecting the flammable gas alarm in the electromagnetic environment.

(1) Annoying electromagnetic waves in the air;

(2) Narrow pulse groups on the power supply and other output input lines;

(3) Static electricity in the human body.

Other operators should also pay attention to the setting of flammable gas detectors in explosion-proof places. For example, Class A plants that recover flammable gases should use explosion-proof flammable gas alarms, and the explosion-proof rating should not be lower than the corresponding explosion-proof rating of the current specifications.

Users should also use flammable gas detectors to prevent low temperature, high humidity, steam, and fumes from reaching the field. Do not place objects or hang items on the detector. The installed flammable gas detector cannot be moved freely. The user should use the combustible gas alarm to select the goods that the sensor probe can exchange for use. The flammable gas detector should be grounded firmly during the construction process. It is necessary to use a non-corrosive flux for soldering, otherwise the corrosion at the joint may be removed or the line resistance may be added to affect the normal detection. The detector should not fall or be dropped to the ground. After the construction is completed, the commissioning should be stopped to ensure that the flammable gas alarm is in normal operation. Regularly stopping the cleaning and maintenance of the flammable gas detector is an important task to prevent the shortcomings of the attack.

Grounding should be detected regularly, if the grounding is unqualified or the ground is not grounded, the flammable gas detector will also be subject to electromagnetic annoyance. Prevents the disadvantages of component aging. From the perspective of reliability, the theory also proves that the system with a decommissioning period of more than 10 years of flammable gas detectors tends to be added due to the shortcomings caused by component aging. Therefore, if the decommissioning period exceeds the requirements of the rules, it should be exchanged in time.