Oscilloscope

Passive Probe Types- An Overview

2011-07-16T20:13:00.000-07:00

Voltage probes used in oscilloscopes are typically classified as active and passive probes. Passive probes are so named because it is indicative of the fact that this type of probe does not contain active elements like transistors inside them. Rather, a probe of this kind consists entirely of passive elements like resistors, inductors, cables and capacitors. Because of this, it is unable to provide amplification and thus it only gives the original signal amplitude of a material being tested to the measuring instrument.

One advantage of using passive probes on an oscilloscope is that there is no hard limit for the maximum voltage that the probe is able to handle. It is also an inexpensive option since its circuitry is relatively simple and it does not require a power supply. In addition to that, its passive nature prevents the addition of random noise to the signals being sent to the oscilloscope. Majority of probes used in oscilloscopes are of the passive kind.

Passive probes are typically categorized based upon the level of attenuation of the signal that the probes can provide. There are typically three classifications of passive probes each one depending on the attenuation ratio. Attenuation refers to the gradual loss of intensity of any type of flux that is travelling through a medium; in this case, the flux is the voltage of the circuit being tested. These types are generally 1X, 10X and 100X probes.

A 1X scope probe provides a 1:1 attenuation ratio. It is the simplest oscilloscope probe. As suggested by its name, this probe does not attenuate the voltage going through it. Its impedance input is oftentimes similar to that of the oscilloscope. This type of passive probe is made of a connector to the oscilloscope and a coax that is connected to actual probe. A 1X probe is mostly suited for low frequency applications. However, applications requiring greater accuracy and higher frequencies may not be suited for this type of probe.

Better accuracy at higher impedance levels are achieved more using 10X scope probes. This type of probe has attenuators attached to its end that can then connect to the circuit being tested. A 10X probe indicates that the probe attenuates the incoming voltage by a factor of ten. Technically, the signals entering the oscilloscope are reduced and this factor must therefore be taken considered when making measurements.

The third most common probe is 100X scope probes. Other values such as 20X and 1000X probes are also available but the 100X is the most popular choice after the 1X and 10X probes. This passive probe is useful when taking measurements of circuits with extremely high voltages as well as those circuits that need very low levels of loading. These probes are typically used for special purposes and are not commonly utilized for the average application. Because it attenuates the signal by a factor of 100, utilizing it in normal applications will result to significantly minute signal levels being input to the oscilloscope. As a result, extraneous and unwanted noise on the input amplifiers of said scope will be visible and this could lead to inaccuracies in the readings.

The types enumerated above are just some of the most common types of passive probes. Oftentimes, the task of choosing the best probe for an oscilloscope will depend on what is readily available. Being familiar with the requirements of the test as well as the specifications of the circuit to be tested are also vital in determining the most appropriate probe for the job. Basic knowledge of the different passive probe types however will go a long way in ensuring good and accurate results.

Tips in Buying Surplus Oscilloscope

2011-07-07T20:10:00.000-07:00

Nowadays engineers are buying surplus oscilloscope rather than buying a new device of oscilloscope. Most of them prefer buying used oscilloscope because it is more economical and practical. For them there is no big difference between the used and brand new oscilloscope in terms of performance and usability. What makes them different is the price. Brand new devices are expensive compare to used oscilloscope devices.

However, buying used oscilloscopes have advantages and disadvantages. One of the advantages of used oscilloscope is that you can able to save money with same levels of purpose and performance. On the other hand, the disadvantage of purchasing a surplus oscilloscope is that it provides incorrect output or result because the device is previously overused. So in order to avoid problems in the future, it is best to learn the simple guidelines that you need to consider before buying.

So to begin with, here are the ten (10) tips in buying a surplus oscilloscope:

1. Always ask yourself as to where will you use the device?
2. Be sure that you know the minimum or maximum levels of bandwidth that you need to measure. This is very important because you can never upgrade the bandwidth of your oscilloscope unit. Be sure to choose a bandwidth in accordance to your work necessity. Otherwise, you will end up buying again another unit of oscilloscope.
3. Do not forget to check if the unit reaches the minimum sampling rate of 60 MS/s. This is also important because you can never upgrade this feature as well.
4. Check also the memory depth of your unit.
5. Always check the resolution of your unit.
6. Choose surplus oscilloscope that is in good physical condition. As much as possible avoid buying worn out unit.
7. Make sure that you self-test the unit to see any malfunctioning buttons and plugs. If you happen to receive a malfunctioning unit. Then immediately return the unit and ask for a refund or better yet ask for another unit.
8. Check if manual instruction is included in the package. This is important for troubleshooting your oscilloscope.
9. Carefully read surplus oscilloscope’s specification before purchasing.
10. Be vigilant in purchasing your unit. It may be a used or a second hand unit with a lesser price. But still it involves your money and time. It is best to arm yourself with knowledge about the unit before buying.

Surplus oscilloscope can be bought at cheaper prices. Regardless of brand names like Tektronix, Agilent, Hewlett-Packard, Lecroy, Fluke, Hitachi, Madell and Leader, the prices are definitely lesser or half of the original price. The price of surplus oscilloscope ranges from $100 until $5000.

Utilizing your resources is one way of spending your money wisely. Surplus oscilloscope and brand new oscilloscope becomes a fundamental tool among electrical companies, telecommunication companies, hospital facilities and other electronic industries. Above all, determining what is suitable unit for your work is the secret ingredient of purchasing a good quality of oscilloscope.

USB Oscilloscope: Basic Information that Potential Buyers should know

2011-07-06T20:08:00.000-07:00

In exchange for an affordable amount, you may now get your hands on your own USB oscilloscope which you may use to harness your computer to detect variations in signal voltages. Gone are the days when this type of device is mainly produced in stand-alone models. You may now invest on a good USB oscilloscope model and get the results directed to your computer, which will make processing the results much easier. Without a doubt, using this type of device will help you go about your tasks faster and will make processing your results more efficient.

There are different types of USB oscilloscope in the market, all of which fits their own specific functions. You would not even have any problem in connecting this device to your computer for all you would have to do is to plug it into one of your systems universal serial buses. If you want to be able to keep up in the growing trends in the market, it is imperative that you begin looking through the different oscilloscope models that are available to you as soon as possible. This way, you would be able to start using this device in getting all the information that you need and implementing the necessary processing systems straight from your computer.

USB oscilloscope models work very much like the stand-alone models, except that they use the power of the computer to run. This means that you would not have to worry about supplying the necessary amount of power to the oscillator anymore. The older models usually require their own power sources for oscilloscopes require much electricity to function. When you use a USB oscilloscope, you can simply plug the device to your USB port and focus your attention to more pressing matters.

In addition to this, using USB oscilloscope also allows you to do away with the various considerations that you would have to make if you were to use an older model. Other than the power issue, people often find it difficult and time-consuming to transfer the results that they get from the older models to their computer. With a USB oscilloscope however, you would not have to do any transcription whatsoever for all the information that you need will be sent directly to your computer, ready to be analyzed. Plugging the device to another computer system will also allow you to transfer the results to the other device as well.

Believe it or not, using a USB oscilloscope will also make it much easier for you to process the information that you would be given. There are a lot of plug-ins and programs that you may install in your computer, most of which will allow you to do away with the manual tasks of processing the results. With these programs, all you would have to do is to use the USB oscilloscope as if you would an older model, and leave your computer to do the rest. Of course, you would still have to overlook the process to ensure that everything will work as necessary, but there is no doubt that using these programs will save you a great amount of time.

The USB oscilloscope models that are in the market are also produces using different designs, which come with their own sets of features. Obviously, some USB oscilloscope models are more sophisticated than the others. With this said, it is important that you spend the necessary amount of time in looking up the differences between the various models, to ensure that you would be making the right choice. Don’t worry for there are a lot of resources that you may use in getting all the information that you need about these oscilloscope designs. Make sure that you go through as many of them as you can before investing your money on anything.

Owning a USB oscilloscope will reap you various advantage professionally, so it is imperative that you consider getting one for yourself. Just see to it that you go through all the choices that you have before buying anything to ensure that you would be buying one that is useable for you. As long as you find a model that will fit your need and your skill level, you should be able to use your oscilloscope to go about your tasks in a more efficient manner.

DPO7000 Oscilloscope - Specs Functions Prices

2011-07-05T03:13:00.000-07:00

In this fast-paced world of ours, more and more gadgets are being invented to improve the way of life of people and to provide more convenience for us. But these invented gadgets should be made sure that they are working at their utmost potential to offer good quality to consumers. These gadgets are always inspected if they are working properly before being sent out in the market.

One good example of those gadgets used to check the level of function of new inventions is the DPO7000, an oscilloscope, which observes the constantly varying signal voltages. An oscilloscope like DPO7000 is commonly used to view the exact wave shape coming from an electrical signal. Furthermore, it can show distortion, and relative timing between two related signals. This instrument is often used in the different sciences like medicine, engineering, and telecommunications industry.
DPO7000 also known as the digital phosphor oscilloscope offers several features. It contains high waveform capture, protocol decode, search capabilities needed for debugging, advanced triggering, analyze serial data, memory and general-purpose devices. DPO7000 has a bandwidth of 500MHz to 3.5 GHz which the user can select the limit filters. Having good bandwidth offers more accurate characterization of designs.

Another feature of the DPO7000 is the sample rates up to 40 GS/s on one or two channels, 10 GS/s on 4 channels simultaneously this can improve the validation of the design because it will accurately sample the design. With Tektronix proprietary FastAcq™ technology, DPO7000 also offers FastAcq with Digital Phosphor display that discovers infrequent events and glitches rather quickly.

This uses a >250,000 waveforms/s maximum capture rate that shows indiscernible anomalies in an instant. Pinpoint® triggering and Built-in Analysis Tools are some other features of DPO700 which helps identify and analyze your device and the anomalies hidden in it or found during the operation of a device. The serial triggering and analysis option feature of the DPO7000 also aides in the debugging process of a certain device.

The last feature of the DPO7000 is the Application Software Packages that allow s it to be transformed to other specialized applications with eye analysis or jitter and it also come with power analysis and some more. DPO7000 is sold in different prices according to its different models and bandwidth size.

The DPO7054C model of the DPO7000 series contains 4 channels. a bandwidth of 500 MHz, record length of 50/25/12.5 M, and sample rate of 20/10/5 GS/s is priced US$ 17,700

The DPO7104C model of the DPO7000 series that contains 4 channels, a bandwidth of 1 GHz, record length of 50/25/12.5 M, and with sample rate of 20/10/5 GS/s is priced US$ 21,900.

The DPO7254C model that features 4 channels, a bandwidth of 2.5 GHz, same record length, and sample rate of 40/20/10 GS/s is priced US$ 30,800

The DPO7354C model that contains 4 channels, a bandwidth of 3.5 GHz, record length of 50/25/12.5 M, and sample rate of 40/20/10 GS/s is priced US$ 39,300.

As you can see, DPO700 offers a lot of uses that will surely be of help to its user for them to be able to maintain the quality performance of their other devices. But just like all other inventions and gadgets out there, there are always the advantages and disadvantages of using this item just like a coin having two sides.

Extech Ms420 – A 20 Mega Herz with a 2-channel Digital Oscilloscope

2011-07-04T02:52:00.000-07:00

Ideal for electronics industry, this Extech Ms420 20MHz digital oscilloscope has a 3.8” (96mm) color CD display that makes viewing multiple waveforms so easily. This has a dimension of 7x4.4x1.6" and a weight of 24.3oz or 690grams. This extech oscilloscope has a real time sample rate of 100 MS/s and a rise time of 17.5ns. As what the title said, Extech Ms420 has two channels and a record length of 6K points per channel. The glitch capture is 50ns. The vertical sensitivity of the extech oscilloscope is 5mV to 5V/div and its vertical solution is 8 bits. The time base range is 5ns to 5s/div. The sample mode of the Extech oscilloscope includes Sample, Peak Detect and Average. The trigger modes include free run, edge, single shot and video. The trigger source of Ms420 are channel one and channel two. The trigger couplings are AC and DC. The input impedance is 1MΩ/20pF and the max input voltage is 400V on its peak. The cursor measurements used in Ms420 are the time and voltage.

When it comes to the true RMS multimeter functions, the AC/DC voltages include 400mV, 40V, 4V and 400V. The AC/DC current would be 300mA, 40mA and 20A. The resistances of the Ms420 Extech oscilloscope are 400Ω, 40kΩ, 4kΩ, 400kΩ and 40MΩ. The capacitance ranges from 51.2nF to 100µF. The PC interface of this Extech oscilloscope is USB cable.

There are certain features of this Extech Ms420 oscilloscope. These features include an auto-set function which makes use and optimizes the range, position, triggering and time base to guarantee a stable demonstration of virtually any other waveform. The model Ms420 digital oscilloscope also features 5 automatic measurements including cycle, frequency, average, RMS and peak to peak. Ms420 also makes use of a Peak Detect capacity that has a XY mode and for a 50ns glitch capture. It has an Average Mode that is used for smoothing waveform and also a Persistence Mode used for observing active signals. Furthermore, the Extech oscilloscope can recall and store from up to 4 waveforms setups and screens. It has Math features that allow users to subtract, add, divide and multiply.

The component makes use of a software and USB interface used for transferring data and waveforms. With an utmost input electrical energy of 400 Volts and a bandwidths of 20MHz, the extech Ms420 oscilloscope comes complete with a test lead, double 1x/10x oscilloscope probes, Windows 88/95/NT/ME/XP/2000 compatible Universal Serial Bus cable and software, capacitor calculating module and a current shunt. In this oscilloscope, adjustment screw driver, hard carrying case and a universal AC charger or adaptor are also included. The power supply is six hours Li-ion rechargeable battery.

Additionally, the ms420 oscilloscope also comes with a dual testing or a troubleshooting of several printed circuit boards and also electronic assemblies. The software PC screens can display graphical waveform and analog bar graph. There is a trigger hold off function of Ms420 that stabilizes complex waveforms.

Here are some additional information about Extech Ms420 oscilloscope:

The auto-set feature allows the digital oscilloscope to display and measure unknown signals automatically. This feature is useful in quickly checking multiple signals.

Persistence Mode allows a user to resist a waveform on the display, at the same time, overlapping the current waveform.

The Peak Detect is used to display glitches and other asynchronous waveforms.

You can use AC-coupling in observing a small ac signal that goes with the dc signal.

Each channel of the Extech oscilloscope has its own exclusive menu and each of the items can be set correspondingly based on the specified channel.

The trigger system determines when the display and acquisition of waveform data occurs.

Buy one and experience the Extech advantage.

Agilent 1130a Oscilloscope - Functions and Specifics

2011-07-02T08:51:00.000-07:00

In a nutshell, the oscilloscope is an electrically sensitive device that is used to measure the voltage across an electronic device or a circuit. Unlike a regular voltmeter, that measures static voltage, this device measures and continuously plots voltage against time. The display of the device has an x-axis for the time and y-axis for the voltage. The reading deflects upwards with a positive voltage input and it goes down with a negative voltage input. The Agilent 1130a Oscilloscope in particular, is a high-frequency “active differential” oscilloscope.

The name of the device has an etymological root of “oscillation” which means “back and forth deflection.” This is characterized by the movement of the readings. There are analog and digital types of the device. Nowadays, the digital types are widely used because of their high sensitivity, memory and processing capacity. To measure signals and voltage, the “probe” or sensor of the 1130a Oscilloscope must be connected to a live circuit.

Special Functions of the Agilent 1130a Oscilloscope

Perhaps the most convenient feature of the 1130a Oscilloscope is the support for variable probe heads. The probes are directly placed on the circuit to measure signals, voltages and resistances. However, modern technologies have smaller circuit boards and tight spaces. Traditional probes cannot fit or correctly connect with the right spot.

The new trend is the usage of differential SMA heads. Ergonomically designed, the span of these sensors can be adjustment in just a few simple steps. With these variable probe heads, human-caused errors and equipment damages can be minimized. This feature makes the 1130a a versatile measuring equipment for applications in electronics, physics and engineering – both in small and large-scale tasks.

The 1130a Oscilloscope, like other active differential models (1131a to 1132a) have probe systems with various bandwidths. The bandwidth, briefly, is the amount of signal that a probe can handle against time. The probes come in 7, 5, 3.5 and 1.5 gigahertz types. Modern probes like these demonstrate across the entire bandwidth a flat frequency response. This results in less distortion when measuring different ranges of voltages.

The best feature of these modern oscilloscopes is the dual support for single-ended and differential measurements. You will only to need to change the probe or accessory depending on the circuit to be examined.

Device Specifications of Agilent 1130a

The 10%-90% rise and fall time of the 1130 is very fast at 233 psec. The bandwidth of the probe is greater than 1.5 GHz. The input dynamic range is between -2.5 and +2.5 volts.

For more information on the Agilent 1130a oscilloscope, you may visit the manufacturer's website and look for the schematic diagram of the device. Before purchasing, check on the different capacitance levels, induction, resistance and -3 DB system bandwidth of the device. While oscilloscopes function in a more or less common way, some designs are more ergonomic and efficient. This may sound like a no-brainer, but you must choose an oscilloscope that safely fits the voltage/signal range of the device to be measured.

Is Tektronix Oscilloscope Price Affordable to Buy?

2011-07-01T21:18:00.000-07:00

Tektronix oscilloscope price depends on the product’s performance and bandwidth. If you want to buy the device, you must consider buying the quality and the features of the product. The most advanced bandwidth and wide range of usability is more expensive compared to the basic unit of textronix oscilloscope. This basic unit is most likely with less the features with less bandwidth.

Buying Tektronix oscilloscope always comes in series and updated specifications. Below are the lists of Tektronix oscilloscope series:

a. DPO7000C Oscilloscope Series
b. DPO/DSA/MSO70000 Digital & Mixed Signal Oscilloscope Series
c. DSA8300 Sampling Oscilloscope Series
d. MSO/DPO2000 Mixed Signal Oscilloscope Series
e. MSO/DPO3000 Mixed Signal Oscilloscope Series
f. MSO/DPO4000B Mixed Signal Oscilloscope Series
g. MSO/DPO5000 Mixed Signal Oscilloscope Series
h. TDS1000B Oscilloscope Series
i. TDS1000C-EDU Series Digital Oscilloscope
j. TDS2000C Oscilloscope Series
k. TDS3000C Digital Phosphor Oscilloscope Series
l. TDS5000B Oscilloscopes Series
m. TPS2000B Digital Storage Oscilloscope Series

The series mentioned above have different levels of performances and bandwidth. Hence, prices differ. Here are the following lists of Tektronix oscilloscope prices:

TDS2002C Digital Storage Oscilloscope - $1,200.00
DPO2024 Digital Phosphor Oscilloscope - $4,060.00
MSO2014 Mixed Signal Oscilloscope - $4,690.00
TDS2014C Digital Storage Oscilloscope - $2,160.00
TDS2024C Digital Storage Oscilloscope - $2,540.00
TDS2012C Digital Storage Oscilloscope - $1,450.00
TDS2022C Digital Storage Oscilloscope - $2,060.00
MSO2024 Mixed Signal Oscilloscope - $5,620.00
TDS1012C-EDU Digital Oscilloscope - $1,190.00
TDS1002C-EDU Digital Oscilloscope - $990.00

TDS2001C Digital Storage Oscilloscope - $990.00
TDS1001B Digital Storage Oscilloscope - $950.00
MSO2012 Mixed Signal Oscilloscope - $3,900.00
TDS3012C Digital Phosphor Oscilloscope - $4,790.00
DPO3014 Mixed Signal Oscilloscope Series - $5,900.00
TDS3034C Digital Phosphor Oscilloscope - $8,200.00
TDS3054C Digital Phosphor Oscilloscope - $11,800.00
DPO3032 Mixed Signal Oscilloscope Series - $7,090.00
DPO3054 Mixed Signal Oscilloscope Series - $11,700.00
TDS3052C Digital Phosphor Oscilloscope - $9,950.00
DPO3034 Mixed Signal Oscilloscope Series- $8,530.00
TDS2004C Digital Storage Oscilloscope - $1,820.00
TDS3014C Digital Phosphor Oscilloscope - $5,700.00
DPO2014 Digital Phosphor Oscilloscope - $3,380.00
TDS1012B Digital Storage Oscilloscope - $1,450.00
TDS1002B Digital Storage Oscilloscope - $1,200.00
MSO3014 Mixed Signal Oscilloscope Series - $7,800.00
MSO3054 Mixed Signal Oscilloscope Series - $15,200.00
TDS1001C-EDU Digital Oscilloscope - $790.00
DPO3052 Mixed Signal Oscilloscope Series - $9,550.00
DPO2012 Digital Phosphor Oscilloscope - $2,810.00
MSO3032 Mixed Signal Oscilloscope Series - $9,470.00
DPO3012 Mixed Signal Oscilloscope Series - $4,780.00
TDS3032C Digital Phosphor Oscilloscope - $6,900.00
MSO3034 Mixed Signal Oscilloscope Series - $11,400.00
MSO3012 Mixed Signal Oscilloscope Series - $6,480.00

The basic Tektronix oscilloscope price ranges from $700 - $1000 grand. Other series’ cost you more than $1000. Basically, those series’ that have a price of more than $1000 are designed with average features and built-in tools. Having an average or advanced package is what makes the product expensive. The cheaper prices only have basic features and bandwidth that ranges from 40 MHz – 50 MHz. If you are aiming for higher or more advanced performance like 300 MHz and above, then, you must pay for $8000 or more per series.

Above all, Tektronix oscilloscope price can be categorized as one of the most expensive electronic devices in the world today. The purpose of the product is widely used in telecommunications, science and any related electrical works like analyzing automotive and other electronic equipments. Though it is expensive, electrical companies, hospital facilities and telecommunication companies are still buying the series because of the advantages of the device to the work and to the society. The Tektronix oscilloscope price may not be right, however, the quality and quantity of the product is often considered among the buyers.

A Look Back Into the History of The Multimeter

2011-06-30T21:14:00.000-07:00

The multimeter has become one of the most indispensable tools of modern electronics today. Capable of functioning as a voltmeter, ohmmeter and ammeter among others, this device has been an essential instrument in troubleshooting and diagnosing probable problems in circuits as small as those found on household appliances to that as large as commercial main feeds. These days, multimeters come in a multitude of forms and varieties each one boasting of different features and advantages. But like most inventions, the conception of the multimeter did not occur all at once but rather, it was a progression of different devices that underwent various improvements to become the tool that has now become very essential.

The very first instrument similar to the multimeter was first utilized during the 1820s and was known as the galvanometer. It was the first moving-pointer electrical detector device. The earliest form of the galvanometer was reported by Johann Schweigger of University of Halle in September 16, 1820. During that time, the device was more popularly known as multipliers due to the multiple coils of wire used to increase the effect of the magnetic field produced by the current being measured. It was only by 1836 when the instrument was widely known as galvanometer, a term derived from the Italian researcher Luigi Galvani.

Unlike modern multimeters, galvanometers relied on the Earth’s magnetic field for the force needed to move the needle of the device. These instruments had to be oriented first before they could be used. Later versions of the instrument began to use opposing magnets and were thus were capable of functioning regardless of their orientation. Later versions were also able to measure both resistance and voltage and enabled the comparison of an unknown quantity to a reference value for voltage and resistance. A major downside to this invention was the fragility and bulkiness of the device.

It was during the 1920s that the first multimeter was invented. It was also during this period that vacuum tube electronic devices as well as radio receivers became more popular. British Post Office Engineer Donald Macadie was credited for the invention of the first known multimeter. During that period, separate instruments had to be brought to the field during routine maintenance of telecommunications circuits. Donald Macadie came up with a solution by inventing an instrument which is capable of measuring electric charge, electric current and resistance in terms of amperes, volts and ohms respectively.

The device invented by Macadie was named avometer after the different units that it was able to read. This was the first multifunction meter. Back then, the meter was a relatively simple device made of a moving coil meter, voltage and precision resistors and most importantly, switches used to set the range of the measurements. Three years after its invention, the first of the avometers were put on sale. The first models ran un-direct current and its mechanisms remained unchanged for quite a while.

Apart from the avometer, pocket watch style meters were also widely used in the 1920s. These were sold at a cheaper price than the avometers. The connection was usually done through the metal case which served the negative connector. This design however resulted in numerous cases of electric shocks. Apart from that, technical specifications of the device were often crude at best.

The typical analogue meters used to take voltage readings back then draws out current and loads the circuit being tested to some extent for its needles to deflect fully. This has often led to faulty readings due to the meter’s effect on the circuit. Readings taken had the tendency to give readings that were lower than the actual values.

Because of this limitation, vacuum tube voltmeters instead of analogue multimeters were often used for voltage measurements requiring high impedance. This instrument had a fixed impedance input through a cathode follower input circuit and in effect, did not load the circuit greatly. Analog transistor and field effect transistor voltmeters were also used for this purpose during that time when digital multimeters were still not introduced.

The development of the digital multimeter happened a few decades after the first analogue versions were sold. The first digital instrument to be sold in the market was a form of digital voltmeter first sold in 1955. This device worked by scaling inputs and digitalizing them before displaying the results in a numeric digital display.

Developments made in the field of display technologies and digital integrated circuit technology paved the way for improvements in digital measurements. It was during the late 1960s that the first versions of the digital avometer appeared. This instrument was later known as the first digital meter.

Since its first development during the 60s, the elements of a typical digital meter have remained the same. Its three basic functional elements are signal conditioning, analog/digital conversion and numeric digital display. A digital meter has an analog-to-digital converter capable of converting a direct current voltage input into a digital form which can then be displayed.

Contemporary multimeters nowadays have undergone so much improvement that several of them contain additional scales such as decibels. In addition to that, modern multimeters have other functions such as the ability to measure capacitance, frequency, and duty cycles. More advanced versions can even measure temperature using a thermocouple probe, measure inductance and is connectible to a computer.

The multimeter is just one of the many examples of how technology is able to shape lives and change the way people do things. From starting out as a simple instrument that is able to measure voltage using the earth’s magnetic field to a digitalized variety packed with a multitude of functions, the multimeter has indeed gone a long way up in the technological ladder. And with lots of other potential enhancements on the way, who knows what this little gadget can do a few years from now? In the end, appreciation of the multimeter and the science and technology behind it would be so much deeper if one knew the history and the stories behind its making.

BK Precision 2530B Oscilloscope

2011-06-30T03:30:00.000-07:00

The BK Precision 2530B is an excellent combination of features and design that makes it remarkably easy for users to manipulate the product. With dimensions of 12 by 6.3 by 5.2 inches and a weight of lbs, the oscilloscope provides reliable performance with analog style controls blended in with top-quality technology for accurate usage.

Features of the BK Precision 2530B

One of the top features every educator would love about the BK Precision 2530B is its Auto set function which increases ease of use remarkably well. A software is also included with the 2530B, making it easy to analyze various elements for use including waveforms and measurements. Automatic measurement as well as advanced triggering may also be set up by the user depending on their needs. Its extensive trigger ability covers slope, edge, pulse width, alterative and even a line-selectable trigger for videos.

Of course, the Auto feature may also be disabled so that the user would have a chance to manually set different elements of the oscilloscope. This makes it ideal for the use of instructors or educators even as the top-notch technology behind the 2530B also makes it sufficient for troubleshooting, debugging or service and repair.

BK Precision 2530B operates on a 25MHz bandwidth, a 5.7 inches color displace and 500MSa/s. Resolution is at 320 x 240 with a 64K color. Aside from the pre-saved math functions, there are also 32 automatic measurements with a save and recall function for easy storage of data. Memory waveform measures up to 32,000 point record length for every channel. As mentioned, the 2530B makes it possible to transfer relevant data to any PC operating on Windows.

Originating from China, the BK Precision 2530B comes with multiple language interface, allowing American users to manipulate the device without language barriers. The unit can also examine data measurements whether off-line or in real-time. The size of the item makes it easy to bring in various locations for practical use. Even better, the unit comes with a “Help” button that makes it possible for new-users to get aid whenever they find themselves lost when using the BK Precision 2530B. Of course, the fact that the unit comes with extremely legible buttons makes it easy to understand and learn exactly how to manipulate it and get the results the user wants.

Input coupling for the 2530B includes AC, DC and GND with a range of DC Couple 10 Hz to 25 MHz. Operating temperatures is between 10 to 40 degrees Celsius. The menu display timer of the product ranges from 2 seconds, 5 seconds, 10 seconds, 20 seconds or infinite.

All in all, the BK Precision 2530B provides some of the most important facets that would make it excellent as a tool for both educators and professionals. Combined with top of the line features, excellent design and visibility – it isn’t surprising why the product is one of the most used units today. The oscilloscope comes with a two year warranty and is being sold at an adequate price in today’s market.

A Guide to Understanding Multimeters

2011-06-29T21:13:00.000-07:00

A multimeter is a device used as an electronic measuring instrument. It is capable of performing a varied number of measurement functions. Multimeters are also known as multitesters or Volt-Ohm meters (VOMs). Hand-held models of the instrument are available for those working in the field and a bench instrument version is also available for more accurate readings. The instrument’s basic function is to help troubleshoot electrical and electronic problems in the electronic devices such as large-scale electronic equipments, domestic appliances, wiring systems, motor controls and power supplies.

Despite being available in various brands and styles, every multimeter is sure to offer the same basic functionalities. A multimeter is so named because it can perform functions that are normally done by a single instrument. When used in the voltmeter mode, it can measure the amount of voltage running through any given circuit. This voltage reading can then be compared to the expected or ideal voltage specified for the circuit. It can also be used as an ammeter to measure the amount of current passing through a certain circuit. In addition to these functions, it can also work like an ohmmeter. In this mode, the meter will be able to read the inherent resistance of a circuit from its power output. More advanced models can measure inductance, frequency, capacitance and temperature. Some can even test transistors and diodes.

A typical multimeter consists of a display, probes, terminals and a dial to set the different measurement ranges. Depending on the type, the display can either be a numeric digital one or a dial display. The probes of a multimeter are used to connect the instrument to the device or circuit under scrutiny. The most common attachments in use are crocodile clips, pointed probes and retractable clips. The terminals inside it are connected to resistors corresponding to the range selected.

There are two main types of multimeters in the market- digital and analogue. An analogue multimeter moves a needle along a scale shown on the display panel of the device. Measurement is done by judging the needle’s position on the dial. This may sometimes result in inaccuracies in the measurements taken because readings can oftentimes become subjective. However, analog meters can display the changes in reading through time. They are often useful in instances when the person taking the measurements needs to focus on other tasks as well. The range of this type of device is known as the Full Scale Deflection (FSD) or the maximum range that the instrument can read. It is also useful in taking readings that are beyond a typical multimeter’s range. For this purpose, the probes of the meter are usually made to touch the circuit and the speed of the movement of the needle toward the meter’s FSD is noted.

Digital multimeters on the other hand are popular for their accuracy and precision. Unlike its analogue counterpart, digital meters give measurements that can be read directly on the display panel. In addition to that, modern digital meters can also provide additional features. Some digital meters for example can automatically select the right range for the circuit under inspection. It can also give correct readings even if the probes are connected to the circuit in reverse. Typical digital meters cannot, however, give the trends or changes that a reading may undergo through time. They also cannot be made to take readings that are higher than their specified range.

Each type of multimeter has its own advantages and disadvantages. When used to take voltage readings, an analogue meter is usually a better choice because it has a much higher resistance when compared to a digital reader with a similar range. In addition to that, it is typically easier for an observer to follow slow changes in voltage when using an analogue meter rather than a digital one. When used to measure current, an analogue meter usually takes good readings because of its high sensitivity. Recent advances in technology however have made it possible for digital meters to perform as well as or even better than typical analogue meters.

Like all other devices, safe operation still must be observed when handling multimeters. There are a number of safety practices recommended for users to ensure that no harm and accidents occur during use of the instrument. The simplest way to go about this is to ensure that the meter selected matches the voltage levels of the circuit, device or installation meant to be tested. Doing so not only prevents the possibility of a damaged an unusable meter but it also ensures personal safety especially on the part of the one doing the measurements. Most models have fuse or fuses pre-installed in the device to prevent damage but no risks should be taken as some fuses don’t work as expected at times.

Multimeters are rated into categories based on their intended use. A higher category number would indicate that the meter is more resistant to higher energy transients. Thus a meter with a higher rating is expected to withstand higher energies as compared to lower rated ones. There are four categories given to multimeters.

The first, or Category I, refers to meters used to test electronics or equipments that are not directly connected to the main power source. Category II meters are used on single phase sub-circuits or on appliances and household loads. Meters under Category III are used on equipments that are permanently installed such as motors and distribution panels. Commercial lighting applications, three-phase appliance outlets and small industrial installations are also tested using Category III meters. The last category, Category IV, is for meters used for testing commercial and residential main feeds, power lines and overcurrent protection equipments. Caution should be observed to make sure that the proper meters are utilized properly based on their intended purposes.

These are just some of the facts about multimeters. Being familiar with these bits of knowledge will help one better understand the workings of this nifty device. Specific methods of handling this instrument will vary from manufacturer to manufacturer but the important thing to remember is to always be cautious during operation of any multimeter.

Function Generator: An Overview

2011-06-29T03:00:00.000-07:00

Function generator is defined as an electronic device or equipment that generates waveforms primarily used in hybrid computers, automatic control systems, decoding devices, analog computers, coding gadgets, regulation system, remote controls, and measuring equipment.

Uses of function generator:

When one needs constant and cyclical signals, efficient and effective works can be accomplished by utilizing this device. The function generator is mostly employed in various applications such as research projects, development programs, instructive classes, seminars, repair businesses, sidelines, stimuli testing, frequency response checking, and ‘in circuit’ signal insertions.

This is used primarily by technicians and electrical engineers in analyzing, testing, and observing equipment. If electronic gadgets malfunction, do not accept signals, or even stopped working, this device will help in solving these problems. Moreover, this is also employed in measuring feedbacks produced by microphones, amplifiers, musical instruments and other electronic devices.

Two categories of function generator:

Analogue generator - This type is utilized to generate triangular waveforms. This wave is produced through repetitive charging and discharging of capacitor from a stable power source. Therefore, an ascending as well as a descending power slope is being formed. Varying frequencies can be acquired through changing the current and capacitor’s size.

Digital function generator – This one is equipped with exterior VCF function or Voltage Control Frequency. It modulates output waveforms and can perform automatic as well as repetitive removal of frequencies between two limits established by the operator. It is capable of signal inversions, two steps attenuation, changeable reductions and other function controls.

Advantages of analogue function generator:

Initial costs are cheaper compared to the digital type.
It is simple to use.

This type offers users instant frequency as well as amplitude controls.
There are no high frequency restrictions especially with non-sinusoidal forms of waves.

Disadvantages of analogue function generator:

It is equipped with more components compared to the digital type. Therefore, it is more prone to damages as time goes by.
Due to its sensitivity to thermal changes, it requires frequent maintenance.

Advantages of digital function generator:

Accuracy as well as stability of frequencies is obtainable in this type.
This can also produce larger amount of standard waveforms.
Versatile technique called DDS or Direct Digital Synthesis may be utilized.
Numerous techniques can be used.
It usually derives frequencies from crystal clocks through its techniques.
It utilizes phase accumulators.
This presents users high quality spectra, less sounds, and agile frequencies.

Disadvantages of digital function generator:

It has complex design, thus usage may seem more difficult.
Due to its complexity, the possibility of problems may occur when traditional tests are done.
Its maximum capacity for handling frequencies has limitations. It is restricted to few wave forms.

Signal generator versus function generator:

Both devices utilize oscilloscopes for troubleshooting purposes. These two make efficient work surfaces available for users and lessen the need to carry equipment in testing shops. These two may seem alike, but they have significant differences.

For checking electronic equipment, a signal generator may produce RF or audio frequencies. However, capabilities may depend on the design and purpose of the generator. On the other hand, the latter type of generator provides transistor to transistor pulses that are in square wave form. To accomplish testing rationale, this generator creates wave forms such as sine and saw tooth.

Step by step procedure in using a function generator:

1.Push the power button to open.
2.Ensure the generator’s configuration based on desired waves specifications.
3.For control checking, connect the lead as well as the ground lead to the oscilloscope.
4.Link the signal lead of the generator to the apparatus to be tested.
5.Connect generator’s ground lead to the other ground intended for the tested apparatus.
6.If a negative lead occurred, attach the device to the ground.
7.After the generator successfully received impulses, note observations.

Affordable function generator:

These devices are available in wide range of designs, models, capacities, and prices. Some have special features, while some are in software forms. Those that are in software forms cost less. However, these have partial capabilities and are primarily used for adjusting audio ranges. Another one is the black box generator that is designed for portable computers, but includes limitations. The benefit of this is its low power consumption. Affordable generators are great choices for those students as well as people with tight budget.

Things to Consider When You Buy Oscilloscope from eBay

2011-06-28T02:56:00.000-07:00

If you want to buy oscilloscope from eBay, you first have to know where you’re going to use it. An oscilloscope is a kind of test instrument wherein graphs of voltage against time are shown for one or more signals. Voltage is represented by the vertical axis, while time is represented by the horizontal axis. There are two types of oscilloscope: the digital and the analogue. You can find both types of oscilloscope eBay but you have to make sure you know what type you specifically need so that you can get yourself the best match.

For instance, the digital oscilloscope is more favored by professionals for its accuracy and variety of useful features such as network ports and data storage. However, it is only recommended for educational purposes because of its limited range. On the other hand, the analogue oscilloscope is a great way to master usage of the equipment since it requires manual operation. Whatever type you choose, rest assured that you can find and buy oscilloscope from eBay.

What are the things you need to ask when you buy oscilloscope from eBay?
Buying in eBay can be relatively easy, especially now that you can find a number of articles that aim to help first-time buyers “tour” the site and find what they’re looking for. For something as sensitive and complex as an oscilloscope, however, you want to be sure that you’re going to get your money’s worth. After all, such a piece of equipment doesn’t come cheap. Here are some of the things you need to take note of when you buy oscilloscope from eBay:

1.What is the condition of the oscilloscope? More than asking whether it’s brand new or second-hand, try to categorize the oscilloscope eBay according to this guide:
With broken parts. Buy the parts, not the entire thing.

Unknown condition and calibration, no signs of a trace. This is the least desirable.
Unknown condition and calibration, with signs of a trace. This is worth considering.
Good condition, working. This is desirable.

Good condition, working, with calibration and warranty. This is the best you can find.

The rule of thumb is to buy only an oscilloscope eBay that can be shown working. Don’t shortchange yourself and attempt to fix broken or slightly damaged equipment. It’s not worth it.

2.Can you get a fair description?

‘Fair’ is a big word for auction sites but rest assured that when you buy oscilloscope from eBay, you’ll be presented with a relatively precise description of the equipment. This is because sellers aim to build their reputation to generate repeat sales, and they can do this by being credible and honest with their descriptions. Of course, it’s equally important that you prepare yourself for a little bit of disappointment. You’re likely NOT to get a sparkling new oscilloscope.
Moreover, it is highly recommended that you don’t trust or rely solely on the pictures sellers provide. Remember that photographs can be easily manipulated using computer software these days. What’s more, most of the sellers of oscilloscope eBay are not really knowledgeable about the equipment. They tend to parrot only what can be seen on the package’s box or what the store they got the equipment from says.

3.Can you get a discount on an oscilloscope eBay?

It’s safe to say that when you buy oscilloscope from eBay in bulk, the seller may be willing to offer you a good price “off the record.” Bulk buys normally translate to discounts; however, just how much discount you’ll be able to enjoy remains up to the seller.

4.What are the oscilloscopes to look out for?

You’re going to meet different kinds of oscilloscope eBay, so it’s best to avoid the confusion by narrowing your options and knowing the most popular and trustworthy brands and models. This means that you have to do your homework before foraging into the world of eBay and other auction sites you might have in mind. Try to read reviews; you can find many of them over the internet. If you know other people who also use oscilloscopes, it’s a good idea to contact them and ask for recommendations.

By taking all these things into consideration, you’ll be able to find the best oscilloscope eBay that matches your needs. Good luck!

Hantek DSO1200 Handheld Oscilloscope

2011-02-20T18:29:00.000-08:00

2 Channel Hantek DSO1020 handheld oscilloscope scopemeter offers 200MHz in bandwidth and rise time of 1.7ns. Full specifications list and pricing information can be found here. Voltage Measuremet: Vpp, Vamp, Vmax, Vmin, Vtop, Vmid, Vbase, Vavg, Vrms, Vcrms, Preshoot, Overshoot. Vetical resolution of 8 nits as well as Real-Time Sampling Rate: 150MSa/s. Input Coupling: AC, DC with Groud Level Indicator. Input Impedance: Resistance: 1M ; Capacitance: 15 pF. Input Sensitivity: 10mV/div to 5V/div. If you are looking for a handheld oscilloscope then Hantek DSO1200 might be a good choice.

Hantek DSO1060 Portable Oscilloscope 60Mhz

2011-02-18T19:57:00.000-08:00

Hantek DSO1060 portable oscilloscope scopemeter offers 60Mhz in bandwidth and 2 channels. Other features of this handheld scopmeter including rise time of 5.8ns, Vertical Resolution 8 bits, Equivalent Sampling Rate 50GSa/S as well as Time Base Precision ±50ppm. It supports USB Host or Device 2.0 Full Speed. Hantek portable scopemeter equipped with TFT LCD Type 5.7 Inch with LED Backlight Display with Resolution 240 (Vertical) x 320 (Horizontal) Dots.

See more information of specs and purchase from this link.

Hantek DSO1060 Oscilloscope TRIGGER:

Phrase Shift Max.3 degree
CH1, CH2
Source
Mode Edge, Pulse Width, Alternative
Y-Axis Input Channel 2
X-Y MODE:
X-Axis Input Channel 1

Hantek DSO1060 Measurements:

Voltage - Preshoot, Vtop, Vpp, Vcrms, Vmax, Overshoot, Vmax, Vavg, Vbase, Vrms, Vamp, Vmid and Vmin.

Time - Frequency,Period, Rise Time, Fall Time, Positive Width, Negative Width, Duty Cycle

Delay - Delay time from ch1 rising edge to ch2 rising edge
Delay time from ch1 falling edge to ch2 falling edge

ATTEN ADS1022 C 25MHz DSO Digital Storage Oscilloscope Specifications

2010-12-28T00:00:00.000-08:00

ATTEN ADS1022C Digital Oscilloscope offers 25MHz bandwidth and <=14ns rise time. With vertical Sensitivity at 2mV ~ 5V/div, this DSO oscilloscope runs at 500MS/s in sample range and capable to scan 25ns ~ 50s/div. This scopemeter displays 64k full color LCD 320 x 234, weighs 2.2kg and 305*154*133mm in size. This lightweight ATTEN ADS1022C scopemeter model supports manifold languages as well as USB device, USB host and RS-232.

Specifications of ATTEN ADS1022 Oscilloscope

Bandwidth: 25MHz
Rise Time: <=14ns
Sample Range: 500MS/s
Vertical Sensitivity: 2mV ~ 5V/div
Sample Rate: Real time 500MS/s,
Equivalent: 50GSa/s
Scan Time Base: 25ns ~ 50s/div
Trigger Type: Edge, Pulse, Video and Alternate
Standard: USB Device, USB Host, RS-232
Mathematics: Add, Subtract, Divide, Reverse and FFT
Display: 64k, Full color LCD, 320 x 234
Language: Manifold languages
Weight: 2.2kg
Size: 305*154*133mm

ATTEN ADS1042 Digital Oscilloscope Information and Specifications

2010-12-27T03:55:00.000-08:00

ATTEN ADS1042C Digital Oscilloscope with 40 MHz bandwidth as well as vertical Sensitivity at 2mV ~ 5V/div. The scopemeter displays 64k full color LCD 320 x 234, weighs 2.2kg and 305*154*133mm in size is one of the best-selling scopemeters. ATTEN ADS1042C supports multiple languages and comes with USB device, USB host and RS-232 with trigger type including Edge, Pulse, Video and Alternate. It records 50GSa/s in sample rate and with scan time base at 25ns ~ 50s/div.

Specifications of ATTEN ADS1042 Digital Oscilloscope

Bandwidth: 40MHz
Rise Time: <=8ns
Sample Range: 500MS/s
Vertical Sensitivity: 2mV ~ 5V/div
Sample Rate: Real time 500MS/s
Equivalent: 50GSa/s
Scan Time Base: 25ns ~ 50s/div
Trigger Type: Edge, Pulse, Video and Alternate
Standard: USB Device, USB Host, RS-232
Mathematics: Add, Subtract, Divide, Reverse and FFT
Display: 64k, Full color LCD, 320 x 234
Languages: Multiple languages
Weight: 2.2kg
Size: 305*154*133mm

Owon Digital Oscilloscope Promotion (Save $163.20) PDS/EDU6062S/T 60Mhz (H290408465321)

2010-11-22T11:00:00.000-08:00

Cheap Owon digital oscilloscope promotional offer lets you save $163.20 on this Owon scopemeter. This offer includes shipping fee and free USB bluetooth 2.0 Dongle. This promotion can be found here.

Specification of Owon Digital Oscilloscope

Description Bench Digital Storage Oscilloscope
Bandwidth of 60MHz
Dual channels
8 inch color display with STN panel (640 x 480 pixels)
Mode PDS / EDU 6062S/T
Rising time(typical on BNC):≤5.8ns
Sampling range: 10S/s ~ 250MS/s
Sample rate (real time): 250MS/s

Included in This Owon Digital Oscilloscope

1 pair of 1:1 (10:1) passive probe
Driver CD
USB cable
Probe adjust pen
Power cable
Instruction manual

ATTEN € 83,06 enregistrer sur DSO Oscilloscope ads1022 c 25MHz freegift numérique (h270544392215)

2010-11-22T08:40:00.000-08:00

Promotion ATTEN oscilloscope DSO vous faire économiser de € 83,06 sur le ScopeMeter DSO. Cliquez sur ce lien pour en savoir plus sur cette offre.

Spécifications de l'oscilloscope DSO ATTEN:

* Bande passante: 25MHz
* temps de montée: <= 14ns * large échantillon: 500 ms / s * sensibilité verticale: 2 mV ~ 5V/div * fréquence d'échantillonnage: 500ms en temps réel / s,

* équivalent: 50gsa / s
* analyse de base de temps: 25ns ~ 50s/div
* type de déclenchement: bord, le pouls, la vidéo et suppléants
* standard: USB, hôte USB, RS-232
* mathématiques: addition, soustraction, division, inverse et FFT
* Affichage: 64K, couleur LCD, 320 x 234
* langue: langues multiples
* poids: 2.2kg
* Taille: 305 * 154 * 133mm

UNI-T UT2025C Digital Storage Oscilloscope Discount Scopemeter Offer and Specifications

2010-11-10T02:29:00.000-08:00

Discount UNI-T UT2025C Digital Oscilloscope 25Mhz promotional offer allows you to save $113.20 on UNI-T UT2025C oscilloscope. You can buy the cheap oscilloscope from this website only.

Features of UNI-T UT2025C Digital Storage Oscilloscope

Automatic Waveform Measurements 28
Bandwidth 25 MHz
Record Length (Max) 1024k
Display 64k, Full colour LCD 320 x 240
Applications College Education, R&D, Electronic product assemble line, Industrial Control etc
Scan Time Base 20ns ~ 50s/div
Ports Standard: USB Device, USB Host; RS-232C, Optional: LAN
Rise Time ≤14 ns
Sample Range 250MS/s
Vertical Sensitivity 2mV ~ 10V/div
Sample Rate Real time 250MS/s
Trigger Type Edge, Pulse, Video and Alternate
Mathematics Add, Subtract, Multiply, Divide, Reverse and FFT

Specification of UNI-T UT2025C Digital Storage Oscilloscope

Power: 100 - 240VACRMS, 45Hz - 440Hz, CAT II
Product Color: Red and Grey, White and Grey
Product Size: 320mm (wide) x 150mm (high) x 130mm (deep)
Standard Individual Packing: Gift Box
Standard Quantity Per Carton: 2 pcs
Standard Accessories: Probe x 2 (1x, 10x switchable; Optional Purchase; 100x probe), Power Cord and English Manual
LCD Size: Diagonal 145mm (5.7 inches)
Standard Carton Measurement: 455 x 430 x 280mm (0.055 CBM Per Export Carton)
Standard Carton Gross Weight: 9kg
Product Net Weight: 4kg (Excluding packaging)

Protek DSO-2090 Digital Storage Oscilloscope USB Scopemeter 100Msa/s Promotion and Specifications

2010-11-09T19:30:00.000-08:00

Protek oscilloscope promotion on Protek DSO-2090 100Msa/s USB PC Digital Storage Oscilloscope lets you save $80 on the USB oscilloscope. Thus you can buy the USB scopemeter for only ~~$279.99~~ $199.99 and the test equipment cheap offer is available from this website.

Features of Protek DSO-2090 Digital Storage Oscilloscope

The PC-Based scopemeter utilizes USB 2.0 interface and the test equipment is easy to use plus no external power source required.
The digital storage scopemeter is for desktop and laptop computer, product line maintenance.
Dimensions (mm):190(L) x100(W) x35(H) thus the test equipment can be carried easily
High performance as the oscilloscope offers 100MS/s real-time sampling as well as 40MHz Bandwidth
Protek DSO-2090 Compatible Operating System: Microsoft Windows 98, MS Windows XP, Windows NT, Windows 2000, Windows ME and also Microsoft Windows Vista
Protek DSO-2090 digital storage oscilloscope offers 23 measurement functions
PASS/FAIL Check and the scopemeter is suitable for technical application
Waveform average, persistence, X-Y plot, intensity, invert, subtraction, multiplication, division, addition.
Save waveform in the following file format: .TXT text file, image file .JPG .BMP, Microsoft Office Excel .CSV and Microsoft Office Word .DOC
FFT
You can connect many DSO scopemeter with just one computer system.
LabviewVBVCDelphiC++Builder Second Design instance

Specifications of Protek DSO-2090 Digital Storage Oscilloscope

Bandwidth: 40MHz
Cursor: Frequency, Voltage
Data Samples: 10K-32K/Channel
Channel: 2 Channels
Vertical resolution: 8Bit
Impedance: 1MΩ 25pF
Coupling: AC/DC/GND
Autoset: Yes (30Hz to 40MHz)
Gain range: 10mV-5V, 9Steps
DC accuracy: ±3%
Timebase range: 4ns-1h, 38 Steps
Vertical adjustable: Yes
Input protection: Diode clamping
X-Y: Yes
Trigger Type: Rising edge, falling edge
EXT. input: Yes
Trigger Mode: Auto, Normal and Single
Trigger Slope: +/-
Trigger level adjustable: Yes
Trigger Source: CH1, CH2, EXT
Pre/Post trigger: 0-100%
Buffer size: 10K-32KB/Channel
Shot bandwidth: DC to 40MHz
Max. Sample rate: 100MS/s
Sampling selection: Yes
Waveform: Display port/line, waveform average, persistence, intensity
Network: Open/Close
Vertical mode: CH1, CH2, Dual, ADD
Cursor measurement: Yes
Spectrum analyzer
Channel: 2 Channels
Math: FFT, addition, subtraction, multiplication, division

Protek DSO-2090 Oscilloscope Accessories

S/W CD
Oscilloscope probes
manual
USB cord

Protek DSO-5200 Digital Storage Oscilloscope Specifications and Promotion

2010-11-09T17:44:00.000-08:00

Protek DSO-5200 Digital Storage Oscilloscope 50GS/S PC USB scopemeter is offered at $339.99 (retail price: US$475.99) and available from this website. The test equipment utilizes USB 2.0 interface so there is no external power source is needed in roder to use the oscilloscope. Protek DSO-5200 USB scopemeter is most suitable for laptop, desktop PC, maintenance of product line and the scopemeter can be easily used on business because if its' small size ((mm):190(L) x100(W) x35(H). The scopemeter offers 200MHz in bandwidth as well as 200MS/s in real-time sampling.

What you will find in the Protek DSO-5200 oscilloscope package?

Operation Manual in English
Digital Storage Oscilloscope Protek DSO 5200
USB cord
Software CD Package
High Frequency Probe X 2

Protek DSO-5200 digital storage oscilloscope is compatible with any computer runs on Microsoft Windows 98, NT, ME, XP, 2000 and Windows Vista. It has 23 measurement functions with PASS/FAIL check thus the PC-based scopemeter Protek DSO-5200 is suitable for technical application. Waveform average, invert, X-Y plot, persistence, division, subtraction, intensity, multiplication, addition and you can save waveform in supported file formats which are JPG, BMP, TXT, Microsoft Word .DOC and Microsoft Excel .CSV file extension. You can extend the channel easily and 1 PC system can connect to many DSO oscilloscope.

Specification of Protek DSO-5200 Digital Storage Oscilloscope

Shot bandwidth: 80MHz
Bandwidth: 200MHz
Autoset: Yes (30Hz to 200MHz)
Vertical: resolution 9 Bit
Impedance: 1MΩ 25pF
Input protection: Diode clamping
DC accuracy: ±3%
Channel: 2 Channels
Gain range: 10mV-10V, 10Steps
Timebase range: 2ns-1h, 39 Steps
Max. Sample rate: 200MS/s
Vertical adjustable: Yes
Coupling: AC/DC/GND
X-Y: Yes
EXT. input: Yes
Trigger Mode: Auto, Normal and Single
Trigger Type: Rising edge, falling edge
Trigger Slope: +/-
Trigger Source: CH1, CH2, EXT
Trigger level adjustable: Yes
Vertical mode: CH1, CH2, Dual, ADD
Buffer size: 10K-512KB/Channel
Sampling selection: Yes
Spectrum analyzer
Accessories: S/W CD, probes, manual, USB cord
Waveform Display: port/line, waveform average, persistence, intensity
Network: Open/Close
Cursor measurement: Yes
Pre/Post trigger: 0-100%
Channel: 2 Channels
Math: FFT, addition, subtraction, multiplication, division
Cursor: Frequency, Voltage
Data Samples: 10K-28K

ATTEN ADS1042C Digital Oscilloscope (Save $118 Cheap Offer)

2010-11-03T08:06:00.000-07:00

Cheap ATTEN ADS1042C Digital Oscilloscope offer let you save $118 on ATTEN oscilloscope. The scopemeter is for sale at wholesale price of $294.99 and it is originally priced for $412.99. This 40 MHz bandwidth oscilloscope deal only available through this link. What you will get in the package? 1 Power Cord (the company will send the type you want, if not please tell and they will send your country type), 2 Probe, 1 instruction CD and Manual plus 1 USB cable.

Specifications of Cheap ATTEN ADS1042C Digital Oscilloscope

Display: 64k, Full color LCD, 320 x 234
Bandwidth: 40MHz
Rise Time: <=8ns
Sample Range: 500MS/s
Sample Rate: Real time 500MS/s
Scan Time Base: 25ns ~ 50s/div
Mathematics: Add, Subtract, Divide, Reverse and FFT
Vertical Sensitivity: 2mV ~ 5V/div
Equivalent: 50GSa/s
Standard: USB Device, USB Host, RS-232
Language: Manifold languages
Trigger Type: Edge, Pulse, Video and Alternate
Weight: 2.2kg
Size: 305 x 154 x 133mm

Oscilloscope Guide By Howard W. Sams

2010-11-02T01:00:00.000-07:00

As the name suggests this Oscilloscope Guide book by Howard W. Sams offers you a learning tool on the basics of oscilloscope. Might be a good read for anyone who is looking for information as to replenish their knowledge on oscilloscope. The book is available from this website.

Discount Velleman HPS40 Oscilloscope For Sale and Specifications

2010-11-02T00:07:00.000-07:00

Velleman HPS40 Oscilloscope is priced for only ~~$494.95~~ $394.95 and available from this oscilloscope page. Both novices and professional users will love the quick and fully automatic setup function, allowing you to perform measurements without physically touching the oscilloscope. Fully insulated measuring probe (included) and battery-powered operation ensure safe floating measurements. Affordable Velleman HPS40 is a user-friendly handheld scopemter with some useful features including:

low noise
high sensitivity
modest weight
a backlit LCD
a choice between regular batteries or rechargeable ones. Furthermore, the scope
a selection of 5 different screen layouts.

Buy Velleman HPS40 Oscilloscope for $394.95 only from this link

General Features of Velleman Oscilloscope HPS40

40MHz sampling rate
0.1mV sensitivity
12MHz analog bandwidth
High resolution LCD 192x112 pixels
50ns to 1hour/div time base in 34 steps
full auto set up
Signal storage (2 memories)
adjustable trigger level
dBm, dBV, DC, rms measurements
X and Y position signal shift
DVM readout
5mV to 20V/div in 12 steps
Audio power calculation (rms and peak) in 2, 4, 8, 16 & 32 ohm
Optical isolated RS232 output for PC
Signal markers for Volt and Time
Frequency readout (through markers)
LCD backlight
Recorder function (roll mode)

What's in the Velleman HPS40 Oscilloscope Package

HPS40 Scopemter Unit
Insulated safety probe
User manual
Handy rigid carry case
Flexible carry protection holster
RS232 connection lead (to DB9)

Solarity Master Oscilloscope Kit 26% Discount Oscilloscope and Specifications

2010-11-01T03:54:00.000-07:00

Solarity Master Oscilloscope Kit is offered at only $2906.99 after 26% discount. Solarity oscilloscope is a 4 channel scopemter with 4 MHz sample rate on all channels. You can update the multimeter oscilloscope via CD as well as compact flash. With adjustable glitch capture and ignition Scope capabilities including coil-on-plug, primary/secondary, superimposed, distributorless ignition, record, raster, parade and also single cylinder. 4 channel graphing and digital multimeter function fro duty cycle, RPM, ohms, frequency and also volts.

Solarity Master Oscilloscope Kit includes:

Solarity with plug-in 4 channel oscilloscope module
4 Scope/DMM leads
ground lead
kV ignition lead
ignition sync lead
HEI adapter
low amp probe 0-60A
pressure/vacuum adapter
temperature adapter
COP adapter (5OEMs)
COP adapter cable
3 test probes
3 back probes
manual
InfoTech Smart Card
CD, and carrying case.
Manufacturer name: OTC

You can learn more on the Solarity Master Oscilloscope Kit from here.

Solarity Master Oscilloscope Kit is shipped from these locations to ensure you get the scopemeter kit quicker.

Arizona
Phoenix

California
Los Angeles
San Francisco

Colorado
Denver

Florida
Miami
Orlando
Tampa

Georgia
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