Tip 1: How to test a fluorescent lamp
Tip 1: How to test a fluorescent lamp
During the operation of fluorescent lamps,There are malfunctions in the switching circuit for a variety of reasons. In some cases, it is not possible to eliminate the breakdown, and in others, the problem is solved by identifying and troubleshooting.
Instructions
1
Rearrange the fluorescent Bulb so that normally glowing and faulty ends are swapped. If in this case there is no glow, the lamp is recognized as defective and must be replaced with a new one.
2
Check the wiring diagram and the lamp holder if the replacement does not help to eliminate the glow. Eliminate the cause of the closure or replace the cartridge if necessary.
3
Look for a malfunction in the starter, wiring orcartridge, if at the ends of the fluorescent lamp there is a glow, but it does not light up completely. If after switching off the starter, the glow is gone, it means that the cause of the malfunction was in it. If the glow remains at the ends of the lamp, check the starter cartridge and the wiring for a short. Repair or replace parts.
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Replace the fluorescent Bulb, if an orange glow appears and disappears at its ends when it is turned on, and the device does not light up. This means that in Bulb hit air. You can not fix this problem.
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Check the operating and inrush current values,if the fluorescent lamp lights up, but with time, there is a strong darkening at its ends. This means that the fault is in the throttle, which receives the operating and starting current, which does not correspond to the required volt-ampere characteristics. If the check does not reveal any errors, then the failure should be looked for in poor quality cathodes.
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Measure the voltage drop in the lamp if it isperiodically lights up and goes out. This indicates that the voltage drop across the lamp does not match the voltage needed to ignite the discharge in the starter. If it turned out to be larger, it is necessary to replace the faulty one Bulb. If less, then the cause of the failure in the starter.
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Replace the choke in the design of the fluorescent lamp, if the ignition of the spirals is observed when the winding is switched on, since insulation can be pierced in its winding.
Tip 2: How to replace a fluorescent lamp
Any fluorescent lamp representsa complex device that has many structural elements and a large number of contacts. Often there is a need to replace the lamp in such a luminaire.
Instructions
1
Note that removing the luminescent Bulb from the cartridge it is necessary with great care. Otherwise, you can easily damage the base or break the glass of the lamp. In such lamps there are fumes of mercury, which are very toxic. They can cause great harm to the human body. A feature of the operation of such lamps is the presence in the circuit of the inclusion of auxiliary equipment - the throttle and the starter. If there is no ignition of the lamp, it is necessary first of all to check the serviceability of the power network, as well as the individual elements of the lamp switching circuit.
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Luminescent Bulb it is necessary to operate under normal conditions. There must be uninterrupted voltage in the supply network and a favorable temperature of the ambient air. It should be noted that the nature of the gas discharge depends more on the value of the gas pressure, as well as the mercury vapor in which the discharge occurs. If there is a drop in temperature, the vapor pressure in the lamp will fall. Because of this, the ignition process as well as the combustion will deteriorate. The fluorescent lamp can be used only at a temperature of 20 to 25 ° C. Even if the mains and all its components are working, the lamp may not light up. The reason can be in ambient temperature. These lamps are usually ignited not immediately, but after several triggering of the starter. Full ignition usually takes 15 seconds. If during this time the lamp does not light up, then it is worthwhile to look for the cause, which can be both in the lamp itself and in some elements of the circuit of inclusion.
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If the lamp flashes but does not light up, the cause may be the closure of the wires or in the terminals of the lamp itself. To solve this problem, it is necessary to rearrange Bulb so that the luminous and faulty end is reversed. If the lamp continues to blink, it is recommended to replace it or try to find a defect in the holder or in the wiring.
Tip 3: How to turn on the fluorescent lamp
Fluorescent lamps are widely used inlife and production. They are quite economical, convenient to use and durable with proper handling. In order for such a luminaire to work long and flawlessly, when it is connected, it is necessary to observe certain conditions.
Instructions
1
Determine which type of fluorescent lampyou need. It can be an energy-saving lamp with a conventional lamp base or tubes. Connection of each type of lamps has its own characteristics.
2
Connecting an energy-saving lamp with a "mignon" cap or with a standard standard cap is not difficult. Screw this Bulb in the cartridge just as you do with a conventional incandescent lamp. Turn on the lamp to make sure the lamp is working.
3
When connecting a fluorescent tube-tubePrepare completing: holders, starters, cartridges for them, the throttle and starting-regulating equipment (Gear). Cartridges can be either hinged, requiring a special clip, and rigid.
4
When using a connection with a starter andelectromagnetic starting and regulating equipment follow the diagram available on the throttle. In this case, the ballast is connected in series with the fluorescent lamp to serve as a current limitor and protect the device from lamp burnout. Check that the power of the connected throttle matches the power of the fluorescent lamp.
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Tip 4: How does the fluorescent lamp work?
Fluorescent lamp or fluorescent lampis the basic device of illumination of premises during daylight hours. Their main advantage is relatively low power consumption at a high level of illumination.
Instructions
1
Fluorescent lamp is a gas discharge sourceSveta. The main source of light in a fluorescent lamp is a phosphor. As a rule, when creating fluorescent lamps, inorganic material is used. The illumination of the phosphor is provided by ultraviolet radiation of discharges, which in turn are also a source of light.
2
The obvious advantage of fluorescent light in front ofincandescent lamps is their lifespan. It is important to understand that a tenfold difference is achieved only if the quality of the power supply is met. In addition, fluorescent lamps have limitations on the number of on / off.
3
The principle of operation of the described lamps isthe phosphor is illuminated by an electric discharge. The change in the shade of luminescence, as a rule, is achieved by changing the composition of the phosphor. In addition, the presence of this substance can contain harmful ultraviolet radiation.
4
For lighting industrial and residential premises,as a rule, low-pressure fluorescent lamps are used. These devices are not suitable for providing the desired level of outdoor illumination. High-pressure lamps are used in the streets.
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Fluorescent lamps are widely used inthe following facilities: schools, hospitals, warehouses, offices and so on. In addition, it is worth highlighting the type of "energy-saving" lamps. This modification of fluorescent lamps, which are connected to the cartridges E27 and E14. They are increasingly used instead of the usual incandescent lamps. It is important to understand that the long life of these devices is provided only in the case of a rare on / off switch.
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It is worth noting that modern plasma displays are nothing more than a modification of fluorescent lamps.
Tip 5: How to check money on the detector
Conducting cash settlements with cashmeans requires special attention. Today, the number of counterfeit bills around the world is quite large, so there is a high probability that a fake bank note may get to you. Count on visual control and determine the authenticity of money by touch is not worth it, it is better to use a currency detector for this purpose.
You will need
- Currency authenticity detector.
Instructions
1
Select the currency authentication detector thatsuppose to use. There are several types of detectors, each of which has its own peculiarities, advantages and disadvantages. Very common ultraviolet devices for detecting counterfeits. In addition, they can also be used to verify the authenticity of passports, certificates of education, driving licenses, credit cards, securities, etc. For example, consider the rules for using the popular PRO-4 detector.
2
Place the device on a table or other convenient level place. Inspect the detector to make sure there are no visible malfunctions of the housing and the working part.
3
Connect the device to the mains and set the switch on the front of the case to the "On" position. At the same time, a fluorescent ultraviolet lamp will light up.
4
Take the banknote you want to check, placeits on the working area of the device and carefully consider. Under ultraviolet light, the paper should not glow, but there should be a glow of special luminescent labels that are invisible under natural light.
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If the banknote is fake, made withusing the usual ("non-bank") white paper, it will give out a characteristic bright glow. However, the same luminescence gives a genuine bill, which was visited in an aggressive environment. Therefore, in case of doubt, before making a final decision on the authenticity of the bill, conduct additional verification using other available methods.
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If the counterfeit paper is made of paperpoor quality, for example, newspaper or blotting, it will not glow, but will not give a high-quality image of details and microrelief. In this case, remove the bill from circulation.
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Pay attention also to the visibility of watermarks. Real signs in the ultraviolet illumination are practically not visible, and fake ones are seen quite well.
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Use the detector to verify the authenticity of the notes for no more than 8 hours in a row. Otherwise, the instrument housing and ultraviolet lamp may overheat.
