Led display how to buy More preferential
2016-03-01 Technical support
Led display how to buy More preferential
Now buy the LED display in the market is a product to the fire, so the customer want to buy LED display should consider those factors?
What are the display power consumption indicators and power requirements?
Display of power consumption can be divided into the average power consumption and maximum power consumption.The average power consumption is also called the working capacity, the actual power consumption is normal.Maximum power consumption is a startup or on the extreme cases such as power consumption, maximum power consumption is an alternating current power supply (wire, switch, etc.) must be considered.The average power consumption is commonly 1/3 of the maximum power consumption.
Display is a large precision electronic equipment, for the sake of the safe use and reliable work, its AC220V power input end or AC220V power input end is connected to the computer must be grounded.
Note: computer AC220V power input ground terminal is connected to the computer chassis.
The installation requirements of the display screen?
Power supply: power supply connection point should be within the screen size
220 v mains power supply, wire 0 line grounding line;
380 v mains power supply, three wire a zero line grounding line;
Wire the same as the cross-sectional area of the zero line;
More than 10 kw screens should add step-down boot device.
Communication: communication distance is based on communication line length definition.
To install screen models used by the communication line length standard to install the communication line.
Communication line with the power cord on the same line pipe line.
Installation requirements: display installed around a horizontal, backward is not allowed
Lifting to retrofit regulating lever up and down
To put forward before hanging installation off the hook
Fall to the ground to get positioning support bolt installation.
Outdoor screen design and installation should consider what are the problems?
The main problems of the outdoor screen is as follows:
(1) display installed outdoors, and often, the wind dust cover, poor working conditions.Electronic equipment is wet or seriously be affected with damp be affected with damp will cause a short circuit or even fire, fault and even fire, loss;
(2) the display may be limited by lightning caused heavy current strong magnetic attack;
(3) the environment temperature changes greatly.Display itself will generate a certain amount of heat at work, if the environment temperature and heat dissipation, integrated circuit may not work properly, and even destroyed, so that the display system cannot work normally;
(4) at a wide, line-of-sight requirement, vision requires far and wide;Change of ambient light, and in particular may be direct sunlight.
Special requirements for the above, the outdoor screen must be:
(1) screen and screen and building the junction must be strictly waterproof leakage protection;Screen should have good drainage measures, in the event of water discharge smoothly;
(2) on the screen and building installation of lightning protection devices.Display the main body and the shell good grounding, grounding resistance is less than 3 ohm, lightning causes a large current discharge in a timely manner;
(3) install ventilation cooling equipment, makes the screen body internal temperature between - 10 ℃ to 40 ℃.Behind the screen above installed axial flow fan, exhaust heat;
(4) choose working temperature between - 40 ℃ ~ 80 ℃ of industrial-grade integrated circuit chips, prevent winter low temperature display cannot start.;
(5) in order to ensure that under the condition of the ambient light strong visual over a long distance, must choose high brightness leds;
(6) shows medium choose new wide-field tube, a broad perspective, color pure, consistent coordinate, life over 100000 hours.Display medium outer packaging for the most popular belt along the square cylinder, silicone seal, no metal cosmetic;Its appearance delicate and beautiful, durable, resistant to direct sunlight, dustproof, waterproof, anti high temperature, prevent short circuit "five prevention" characteristics.
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