Four major failure analysis of pressure sensors

Posted on

1. The problem of the pressure sensor seal ring The output of the pressure transmitter does not change, and the output of the pressure transmitter suddenly changes suddenly. The pressure transmitter transmitter will not return to the zero position. It is likely to be a problem of the pressure sensor seal ring. It is common that due to the sealing ring specification, after the sensor is tightened, the sealing ring is compressed into the sensor pressure guiding port to block the sensor. When the pressure is pressurized, the pressure medium cannot enter, but when the pressure is large, the sealing ring is suddenly opened, and the pressure sensor is under pressure. Variety. The way to eliminate this kind of fault is to remove the sensor and directly check whether the zero position is normal. If the zero position is normal, replace the seal ring and try again;
2. The deviation between the transmitter and the pointer pressure gauge is normal. It is normal to confirm the normal deviation range. The last easy fault is the influence of the installation position of the differential pressure transmitter on the zero output. . Due to the small measurement range of the differential pressure transmitter, the sensing elements in the transmitter affect the output of the differential pressure transmitter. The pressure sensitive component of the transmitter should be axially perpendicular to the direction of gravity during installation. After installation and fixing, adjust the transmitter zero to the standard value.
3, the pressure goes up, the transmitter output does not go this kind of situation, first check whether the pressure interface is leaking or blocked, if it is not confirmed, check the wiring method and check the power supply, if the power supply is normal, simply pressurize the output Whether it changes, or whether there is output from the sensor zero. If there is no change, the sensor is damaged, which may be the damage of the instrument or other parts of the whole system;
4, the transmitter output signal is unstable This fault is a problem of pressure source. The pressure source itself is an unstable pressure. It is very likely that the instrument or pressure sensor is not strong in anti-interference ability, the sensor itself is very vibrating and the sensor is faulty.

TCCA

Trichloroisocyanuric ACID, with the chemical formula C3Cl3N3O3 and a molecular weight of 232.41, is an organic compound, white crystalline powder or granular solid with a strong chlorine-stimulating smell.
Trichloroisocyanuric acid is an extremely strong oxidant and chlorinating agent. It is mixed with ammonium salt, ammonia and urea to produce explosive nitrogen trichloride. Nitrochloride is also released when it is damp and heated, and it is flammable when exposed to organic matter. Trichloroisocyanuric acid has almost no corrosive effect on stainless steel, and the corrosion of brass is stronger than that of carbon steel.
White crystalline powder or granular solid, with a strong chlorine-stimulating smell, containing more than 90% of effective chlorine. At 25 degrees, the solubility in water is 1.2 grams, which is easy to decompose when exposed to acid or alkali.
Trichloroisocyanuric acid is a chloroisocyanuric acid compound, which is an important bleach, chlorinating agent and disinfectant. Compared with traditional chlorinating agents (such as liquid chlorine, bleaching powder, bleaching powder), it has the characteristics of high effective chlorine content, stable storage and transportation, convenient molding and use, high sterilization and bleaching power, long time to release effective chlorine in water, safe and non-toxic. Therefore, its development and research have been valued by all countries. Trichloroisocyanouric acid is widely used and can be used as a fungicide for industrial water, swimming pool water, hospitals, tableware, etc., and has a broad prospect for development and utilization. Trichloroisocyanuric acid has been widely used in industrial circulating water.
Trichloroisocyanuric acid is shortly name TCCA, its a strong oxidant and chlorinating agent and most important bleaches, chlorinating agent and disinfectants advantage with high effective chlorine content, stable storage and transportation its high bactericidal and bleaching power. Widely use in fungicides for industrial Water Treatment, swimming pool, hospital etc.
1.Swimming pool: TCCA is good fungicide in swimming pool. Its most wide to be better disinfect.
2.Hospital: the trichloroisocyanuric acid is also good use in hospital, its high chlorine content, stable storage and convenient molding and use.
3.Using in industrial water treatment like textile, rubber etc, or industrial oxidant. The trichloroisocyanuric acid is a chloroisocyanuric acid compound. It is a more important bleaching agent, chlorinating agent and disinfectant.

TCCA Chlorine Tablets,TCCA 90%,Trichloroisocyanuric Acid

HENAN JINHE INDUSTRY CO.,LTD , https://www.hnchromiumoxidegreen.com