Before speaking the problem of setting the projector, at first we must know why to talk about this issue.
According to the statistics of company maintenance information, early damage to the projector have 10 percent is relate to the installation. With the components set enhance and the increased level of manufacturing, fixing machine’s reliability is also rising. The recent damage caused by the installation of the proportion is increasing, accounting for 20% of the total damage over. After an investigation of this new increase of 10 percent damage to the projector and the increase of tenure has nothing to do, or solely by supply problems caused by the installation failed.
. Lifting these issues arising from the use of most of our problems below the maximum of two reasons. "Mechanical installation" and "electrical installation" for analysis. "Mechanical installation" is not just the projector on the roof hanging on the line, which has generated many questions:
1, the wooden roof with wood screw to fix-up the hanger, a long time because of wood decay, the release screw to make the hanger projector loose, we encountered such a case, but fortunately the apparatus has been pulling by the signal line and had no Personal injury. Projector installation of a solid and reliable relationship to personal safety is a major event, can not engage in perfunctory. M8 must use more than four-hanger expansion bolts jail. If you use other means to ensure robust and reliable fixed. :
2, installed in the top of the building, drilling fixed holes will be make the waterproof layer destroy, when it rains, water from the borehole-hanger fill into the machines, the circuit board, pitting large area, the replacement of circuit boards beyond repair cost of the new board great. Waterproof layer between the floors were damaged, causing leakage of burned machines have occurred, we record the water damage has occurred several 20, and this damage is continuing to increase, has become in need of special attention to the matter.
3, not to install machines near the air-conditioning outlet, because the hot and cold air meeting will be coagulate of water vapor and then be imbibed machines by the fans, large quantities of condensed water will damage the motherboard. In many such cases will happen in the southern region of the high humidity.
A reasonable choice setting location can effectively prevent the water vapor, dust to damage the machines, to extend the life of machines.
4, can not use shoot-nail fixed hanger, because the cement around the shoot-nail will increase a crack over time, can not afford the down big rally, once the hanger break off would have serious consequences.
"Electric setting" have most problems, first, a power supply system, and the second is to install non-standard. Below has said many times to the problem of repeat to you:
1, is the first supply voltage instability, higher at low power grids in the end, low-to 160 V higher than the 260 V, late at night when electricity consumption of low-voltage nearly 300 V , We have the survey record. Projector in standby mode at night when the high-voltage power supply will be partially damaged. Some of the local power board for burn This is the reason for this. Such incidents have occurred throughout the country, the poor quality of some regional power grid problem is particularly serious.
During installation must be certified by a staff electrician, and the projection of all related equipment must use the same power, and power systems installed in the insurance and the corresponding power switch, when to stop using cut off power supply. At the peak in the low voltage of electricity will be very high, the ceiling to install the projector is still in power then, if not cut off the power supply will cause damage, this issue needs special attention, Commissioner of switching off the machine after the power
2, chaotic three-phase power supply system voltage imbalance, "zero line" and "ground" without distinction, or "zero" generation "and" Burning the projector interface caused the incident, the brand machines have occurred. (See before sending the "insulation hanger," a text) will be the losses caused by great. We have repeatedly emphasized this problem, but there has been, first, clear understanding of this issue and the second is safe to assume would like to save a few money. As everyone knows once have damaged dozens of hanger to catch all the money, do not lose the big for small.
Power supply problems related to poor power supply, construction and installation of the whole, we complete the installation work in the very difficult decision, the company after years of summing up and case studies, research and development of the insulation-hanger, it can effectively avoid the bad power supply And the burning of the projector interface problems. Have adopted the installation of insulation hanger projector to the current one does not have the above-mentioned issues.
3, ceiling usually faraway form the general machinery and power sources, so there have been non-standard installation: the projector directly from the roof lighting power, this practice is not safe. Because a lot of time in case of to three-phase power grid load balancing, wall sockets and the roof lighting were different from the two-phase power, two of the power supply voltages between 380 V, the zero line between the earth and will have greater potential Poor, ranging from installation of such images there was interference, heavy machine interface will be burned.
Therefore, in the first one, we stress from the same power supply, this principle is equally important here.
4, projectors and related equipment and the power to avoid high-power air-conditioning, power equipment, such as Dayong share the same power, because the air conditioning and other equipment at the start of the grid will be the peak of the high voltage pulse generator, the first impulse will be The signal interference, and the other is damage to the power generated.
Anhui Province, one Taiwan, a place to install the projector in the stock market tank and air-conditioning share a power outlet, power supply parts for the plane burned, Beijing has repeatedly maintenance personnel can not find reasons for damage, but the users pay a return visit to the scene found only when the problem The host. 5, the ceiling to install the projector in general and further away from the signal source, among some of the installation of equipment distributor, and so on, so to send a great signal attenuation, the image becomes dimmer fuzzy interference fringes, the emergence of serious Image is not synchronized, or a reduction in the rate
So when the installation must be as short as possible length of the signal lines to reduce line of connectors, the choice of good quality wire. This can reduce the loss of signal on the line to ensure that normal use of the projector. .. In recent years the use of the projector penetration rate rising, particularly in the field of education leading all the way, many from other areas switch sales projection on the installation of the company is ignorant, resulting from the installation of a lot of the problems, we In this respect are the first step, and therefore strengthen the agent's popularity is very necessary to install technology to fundamentally change this situation. |