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Do you have any problem with using your Electrical meters? In this essay, we will talk about some frequently asked questions about multimeters.

1. The buzzer function is done for?
A: The buzzer function is to meter additional features, usually done in 2K file, the general resistance of 50 when measured below the line (or resistance), the built-in buzzer. This feature in practice, the role of large, can improve the measurement of line off the efficiency of the electronic maintenance of the necessary functions.

2. Why digital multimeter is not shorted in the 200Ω file back to zero?
A: 200 file, the line, instrument there is resistance and resistance point of contact, so the short circuit, there are a number of mantissa is normal, the mantissa will be increasing in use, can not be adjusted, but the lines can be cleaned board, in close contact to reduce the value. Can be in use, the first short circuit, and note the value subtracted in the measurement on it.

3. How to determine the multimeter is good?
A: This is a rather big problem, will try both each functional range is a better method. Detection, first find the test sources, but generally user-owned standard detection source is impossible, so the general test could add some quantitative with qualitative methods to measure. Basic program, is to find the source detection, according to the instructions and then use it again on the line.

4. How to proofread multimeter?
A: The meter and other measuring instruments, like the factory, manufacturers are adjusting well, so if there is no obvious big question, Please do not adjust. Now the multimeter, the meter is generally a voltage meter, so to proofread other stalls, we must first adjust the DC voltage profile, the file is called the industry's basic file, the file of a wrong, the basic of every file, every function (except for resistance profile), are likely inaccurate. General multimeter functions in each set up a potentiometer (such as the DC voltage range) or more of the potentiometer (such as temperature profile), there are not set potentiometer (such as the resistance profile). A potentiometer easy to handle, the input detection signal, and then adjust on the line directly; no potentiometers, and generally not inaccurate, if inaccurate, then there may be damage to the instrument or line caused by poor contact.

5. How to determine (test) digital thermometer DC voltage range (DCV) is good?
A: Detection, testing first to find the source, because we add a little quantitative measurement is qualitative, so the source of many of the available inspection, home inspection source has, 1.5V alkaline / carbon batteries (1,5/AA, 7/AAA), 1.2V rechargeable batteries, cell phone chargers, adapters and so on. Detection, will be appropriated for the required DC voltage meter files, according to the instructions inserted table pen, connected detection source, on the LCD readout can be read, as long as the value measured at the nominal voltage so can the .
PS: repeat, we add a little quantitative measurement is qualitative, so we can use these sources, because these are not very stable voltage source, such as 1.5V battery, new battery may reach more than 1.6V, the old battery may only a few tenths of volts.

Refering LED light , a lot of people think of shopping pavilion in front of the LCD TV or display. As widely used in industrial and outdoor lighting, LED light source, as the technology continues to mature, has now begun to extend the area of indoor lighting. So, LED home lighting current development status? When access to our family? Recently, the Qingdao International Convention & Exhibition Center, Qingdao International Lighting Exhibition cum-LED, the reporter interviewed the person in charge of the relevant exhibitors.

Advantage of Multi Green Lighting LED

Today, the small variety of holiday lights, street lamps, notebook and TV backlighting, large opening ceremony of the Shanghai World Expo piece of 300-meter long, 30 meters high, the world's largest outdoor LED display, LED products have entered every aspect of life of each person.

Cum in the current LED lighting Qingdao International Exhibition, a group of soft light, delicate lighting design has attracted the attention of many participants. It is understood that this group of South Korean imports of LED lights not only color multi-function soft appearance, and change color, with fragrance and air purification function.

Although the field of LED lighting used in the family is optimistic about the prospects, but in the present LED lights on the market but because of high prices, backward technology, market turmoil and other issues, in large part of the consumer of such products confidence.

LED Light Bulbs cost due to their own reasons, in terms of price and no competitive advantage. Although the LED lights meet the concept of green consumption low carbon consumption, but the price of the hundreds of hundred dollars or so many customers stay away. In response to this phenomenon, Yu Fengxian reporters just make another account to.

"A lot of people think that the high price of LED lights is difficult to accept, but if the words of the longer term, LED light bulbs to energy saving than the traditional much cheaper. We can do the math, no more than ordinary incandescent lamp life of 2000 hours, the market spiral energy saving lamps on a maximum of 8000 hours. but compared to these, LED lights can use the 1 million hours in theory, almost no change. And from the perspective of power, LED lighting effects in the same light source under the 80% energy than traditional light sources above, these add up to a operator, but it is still more appropriate to buy LED lights.

At present, high-end LED bulbs products are mostly used by manufacturers overseas chip manufacturers. "The lack of domestic chip manufacturers the core technology, the quality of chips made ​​in China fail standards, have to import chips, LED lighting products which is one reason for high prices." Participate in the Lighting Fair in Guangzhou Niufei Germany Optoelectronics Technology Co., Ltd. Sales Engineer Huangshao Qian said.

Bought online often see many people complain that the LED lights, the lights started to go home to buy used properly, but after less than six months faint light to dark, impossible to achieve the lighting effect, had to replace. A lot of people complained LED heat dissipation is poor, with no difference between an ordinary light bulb.

Tablet PCs are the latest technological advancement. The machines operation is by the user and there is no interruption from an operating system. This computer has a touch screen that enables use. This is the basic input device for the day-to-day use of these revolutionary devices. These devices use other forms of technology such as hand writing recognition and virtual keyboards.

A tablet PC also has an internet connection that enables you to use wireless internet wherever you may be. They also contain software that enables you to have numerous options for a more enhanced feel of your PC.

There are plenty of features in these revolutionary devices. These features include the following.
• Software that enable you to work well.
• Social networks that help you keep in touch with friends and family.
• A large display screen.
• A wireless internet connection that enables you access the internet everywhere
• Power saving features that enable you to work more without your battery quickly running out.
• A user friendly interface for easier use.
• A built in speaker and microphone.
• USB port for external device connection.

There are various types of these devices. The most recent developed one is the android tablet. This tablet is a highly advanced PC. It is a new way to work more and in a much better way. It also contains features that are outstanding and unique.

• Fully enabled touch screen.
• Internal memory of 32 GB and an external memory of 16 GB.
• Wi-Fi support for wireless internet.
• Google browser that enables you to search and browse the web easily.
• It includes video and music support.
• Has a long lasting internal battery.
• External device connection that enables you connect other devices.
• It is light in weight.
• Has a large screen.
• Sleek design that is a statement of style.
• A scratch proof tempered glass screen.

The android device is a device that enables you to enjoy working effectively. Tablet PC enable you to do more right at the palm of your hand. You literally have your office right with you. The benefits you are able to enjoy include the following.

• A mobile office that enables you to work anywhere you are.
• You are able to have more applications for your own use.
• You can be able to use your device even in the case of power outage.
• You have fewer interruptions as you work.
Try one of these brilliant devices and enjoy the power of a tablet PC.

Cheap guitar accessories enable you to maintain your guitar in a good working condition at affordable prices. There is a wide selection of cheap guitar accessories. There are electric guitar tuner, classical guitar accessories, acoustic guitar and many more. Some of the cheap guitar accessories include guitar strings; guitar picks plectrums, guitar tuner, USB interface audio link cables and many more. All these guitar accessories are available at cheap prices and free shipping.

Maintaining your guitar in its best working conditions can be expensive. It is easy to spend more on guitar accessories than buying the guitar. However, there is a wide range of cheap guitar accessories that can make your guitar-playing hobby simpler. For example a guitar tuner.
A guitar tuner is a very important accessory for all guitarists. Tuning the guitar is the first thing a guitarist should do. Badly tuned guitar can be distracting and can distort the pitch. Many guitar tuners can be quite expensive. However, auto clip Chromatic guitar bass tuner is a cheap guitar accessory, which can make your guitar-playing hobby simpler.

The clip tuner has the following features

• Allows 360 degree tuning
• Has adjustable view angle
• Has an extra large LCD screen with red and green backlight
• It is easy to clip on guitar tuner to the strings
It is a digital clip of style. The tuner picks the sound by vibration. The tuning pitch indicator lights turns during different pitch intervals. The guitar tuner is available at cheap prices and free shipping.
Guitar tuner works with perfect guitar strings to provide accurate sound. These cheap guitar strings include Alice 106 classical guitar strings.

Features of Alice A106 Classical guitar strings

• Alice A106 classical guitar string set features
• Clear Nylon and Nylon core
• It also silver platted copper alloy wound and super light

It is the best choice for all those who love classical guitar. You can get the guitar string set at cheap prices and enjoy free shipping.

Anther cheap guitar accessory is Alice 406 Acoustic guitar string set, which has distinctive bright tone and perfect intonation. Alice 406 Acoustic guitar tuner string set also has the following features:

• Stainless steel and steel core
• Coated with copper alloy wound and supper light
• It has silver and golden color specifications, material, length and weight. The weight is perfect for clipping a guitar tuner.

Alice 406 Acoustic guitar string set is the best choice for those who love Acoustic guitar. The guitar string set is available at cheap prices and free shipping.

Japan earthquake caused part of the electronics companies stop production, has been gradually affecting the China Wholesale market. Yesterday, the reporter visited the market of electronic products found in Qingdao, Japanese electronic products, large SLR camera on the yuan, to the tens of dollars on a small memory card, almost all of the recent price increase, or about 10%, and a considerable supply tension. However, the Japanese household appliances not yet affected.

SLR thousand dollars a week up, March 11, Japan, earthquake and tsunami, resulting in the Northeast Industrial Area Suffered heavy losses. Dominate the global digital camera market with the Canon and Nikon announced that part of the plant shutdown, a number of stores in the island city, Japanese camera sales prices generally rose.

"Rose, prices of all." Yesterday, the Ego Digital Square, a Nikon digital camera store, a salesman surnamed Li told reporters, days after Japan quake thirty-four upstream supplier wholesale price increases to the speaker , or about 10% of basic, like a week ago to sell 6,800 yuan SLR Nikon D90, and now get down 7,400 yuan. China said the total price because the agent has been unable to supply, inventories are now selling products will soon be sold out. The same situation also occurred in the Canon camera counter. "Price we can sell your point, but fear over time did not even have to sell goods at high prices." Canon digital cameras, a major distribution store owner reluctantly told reporters after the earthquake, Canon camera purchase price increases across the board , small card machine basic rose 200 yuan each, large SLR 5DMarkII single price rose by more than 16,000 yuan to 17,800 yuan, while the 550D, 60D altogether out of stock. "Prices have gone up too far off the mark, the goods can not be guaranteed there." The owner said, both made in Japan or made in China, as long as the camera brand in Japan is increasing in price of goods is not the whole, "I'm mostly selling stocks I sold up selling Samsung, Casio, these non-Japanese brands.

Small electronic products into the high five, Reporters found that, in addition to the camera than by the Japanese earthquake, U disk, headset, camera, hard drive, memory cards and other electronic products follow the trend of price increases. Electronic Wholesaler information Chengerlou in Liaoning Road, electronics distributors Mr Jiang is the store to pack the remaining memory. "Japan after the earthquake, the memory of the wholesale price is changing every day, basically. For our dealers, each purchase a lot of money to spend than before." Mr Jiang said, the memory of the important components as the assembly of computers One change is the price they must pay attention to these dealers each day, and the recent memory price increases more obvious, a single average price increase is 10 yuan. Mr. Jiang explained that Japan is an important producer of the world's chip manufacturing, the majority of memory chips on the production in Japan after the earthquake a large number of chips of enterprises to stop production, thus creating a price trend in memory appear.

During National holidays, a lot of friends and colleagues around are talking about "Inception space" and the Inception Spinning Top is on hot sale. The film, said film Buddha hidden inside. As receive the truth in general, masterpiece, perfect, miracle, unbelievable, unbeatable, critical acclaim in almost one-sided, the "inception of space" is toward the direction of the epic fast forward. Some people say that it is "The Matrix" after the best sci-fi film; Some people say that it is "Minority Report" and "Mission Impossible" in the complex; Some people say that it will revive "The Dark Knight" that summer brilliant.

Since the "Inception space" film, "TOMTOP" 100 yuan berserk on the "spinning top", overwhelming the online discussion, "Inception space" has become the most popular topic. Released just two weeks time, it is the box office in the mainland exceeded 2 million. The film's box office in the world nearly 700 million U.S. dollars, one of my friends said to me do not quite understand because of the movie, starring Leonardo for not too interested, "inception of space" when first released in theaters Select a watch other movies. Home Internet access that forum, "inception space" avalanche of discussion, together with a friend strongly recommended two days later, he again got into the theater to watch the film.

With the blockbuster "Inception space," the hit, some young people are keen to explain the dream. In recent days, in the cultural mall, Xinhua Bookstore, to find that many young people dream and selection of books in a bookstore. Yesterday, I went to friend's house, he was read the "Duke of dream interpretation" that read the movie, co-workers to dream and set off a wave of enthusiasm and hope from the book to find the answer to your dreams.

I also learned that only thirty or forty dollars originally small metallic Spinning top toy, just paste the "inception space" of the label to 100 yuan can be sold. Log in Taobao, Pirates of the search key to enter the dream of space on the top, right on the page showing a nearly 500 items, the price from tens of dollars to a hundred dollars. A lot of friends sent me through thechat tool called "China recorded dock," the video site connections, called me to play that called "dream pop" game, play games, take the spinning top prizes. I opened this website, this is the first video site central enterprises, taking four of the game plus a dream step by step through the form of lost domain, with the classic image of the actor Cobb, step by step through between each dream. As long as the skill and operating properly, you can cross the border. Most importantly, have the opportunity to receive clearance after the dock to provide the value of China recorded 200 original genuine spinning top package. Genuine stainless steel set includes a spinning top scope and a dice. Really crazy, a dice for a spinning top friends were playing the game.