LED display protection level concept The security network protection level system was drafted by IEC (International Electron Technical Commission). The LED display screen is classified according to its characteristics of dustproof, foreign object intrusion, waterproof, and moisture resistance. The foreign objects referred to here include tools, human fingers, etc., which are not accessible to the live parts of the lamp to avoid electric shock.
The LED display IP protection level consists of two numbers. The first digit indicates that the LED display is dust-proof and prevents foreign objects from entering. The second number indicates the degree of sealing of the LED display against moisture and water intrusion. The higher the number, the higher the level of protection. Dust rating (indicated by the first X), waterproof rating (indicated by the second X) The first X indicates the meaning of the numeric code.
LED display IP rating Digital meaning 0: No protection 1: Prevent large solids intrusion 2: Prevent medium-sized solids from invading 3: Prevent small solids from entering intrusion 4: Prevent solids larger than 1 mm from entering 5: Prevent harmful dust accumulation 6 : Completely prevent dust from entering the second X indicating the meaning of the digital code. 0: No protection 1: Dropping water into the casing has no effect 2: When the casing is tilted to 15 degrees, the water droplets drip into the casing without effect 3: Water or rain from 60 Degree corner to the shell has no effect 4: Liquid splashes from any direction to the shell without damage 5: Rinse with water without any damage 6: Can be used in the cabin environment 7: Resistant to water in a short time (1m)
8: Immersion in water under a certain pressure for a long time. Example: There is an LED display with IP65, which means that the product can completely prevent dust from entering and can be washed with water without any damage. In the high-tech fair, Shigeo Guangxu showed a P8 full-protection LED display that can be immersed in water for a long time under certain pressure. It is a high-protection all-weather LED display with IP67 and IP68 standard.
continue ink jet printer(CIJ)
Under the pressure of the ink supply pump, the ink passes through the ink pipeline from the ink tank, adjusts the pressure, viscosity and enters the spray gun. With the continuous pressure, the ink sprays out from the nozzle. When the ink passes through the nozzle, it is broken into a series of continuous, equal spacing and the same size ink droplets by the action of piezoelectric crystal, and the ink flow is sprayed. Continue to move downward and charge through the charging electrode. In the charging electrode, the ink droplets are separated from the ink line. When the ink droplet is separated from the conductive ink wire, it will instantly carry a negative charge proportional to the voltage applied by the charging electrode. By changing the voltage frequency of the charging electrode to make it the same as the breaking frequency of ink droplets, each ink droplet can be charged with a predetermined negative charge. Under the continuous pressure, the ink flow continues to move downward, passing through the middle of two deflection plates with positive and negative voltage respectively. When the charged ink droplets pass through the deflection plate, they will deflect. The degree of deflection depends on the amount of charge charged. The non-charged ink droplets do not deflect. They fly downward and flow into the recovery pipe. Finally, they return to the ink box for recycling through the recovery pipe. The charged and deflected ink droplets fall at a certain speed and angle on the object passing in front of the vertical nozzle.
Continuous Ink Printer,Continuous Inkjet Printer,Big Character Coding Printer,Large Character Inkjet Printer;Small Character Inkjet Printer
GUANGZHOU INCODE MARKING TECHNOLOGY CO., LTD. , https://www.gzincode.com