VELLEMAN PCSGU250 USB-PC SCOPE + GENERATOR (2CH.) Review
A complete USB-powered lab-in-a-boxFeature-packed PcLab2000-LT software for two channel oscilloscope. spectrum analyzer, recorder, function generator and bode plotter. With the generator, you can create your own waveforms using the integrated signal wave editor. For automated measurements, it is even possible to generate wave sequences, using file or computer RS232 input.In the box: getting started manual, USB PC Scope+generator unit, USB cable, software on CD, 1 x 60MHz scope probe (PROBE60S),BNC adapter, BNC male to RCA female (CBNC15).Minimum system requirements: ◦IBM compatible PC,WindowsTM 2000, XP, Vista.SVGA display card (min.1024 x 768), mouse, free USB port 1.1 or 2.0,CD Rom player.
Price : $151.75
* Get the best price and special discount only for limited time
VELLEMAN PCSGU250 USB-PC SCOPE + GENERATOR (2CH.) Feature
- FEATURES:
- function generator: crystal-based stability, standard waveforms: sine, square and triangle, predefined library waveforms included: sine(x)/x, DCV, sweep.
- oscilloscope: auto set-up function and X10 option, pre-trigger function, readouts: True RMS, dBV, dBm, p to p, Duty cycle, Frequency
- transient recorder: automatic storage of data, automatic recording for more than 1 year, record and display of screens
- bode Plotter: automated sync between oscilloscope and generator, logatithmic scale option, Volt or dB display scale ◦phase plot option
- spectrum analyser: linear or logarithmic timescale, operating principle: FFT (Fast Fourier Transform), FFT input channel: CH1 or CH2 ◦zoom function
- SPECFICATIONS:
- general: markers for: amplitude/voltage and frequency/time, input coupling: DC, AC and GND, Supply from USB port (500mA), dimensions: 8.2 x 2.2 x 7"
- function generator: amplitude range: 100mVpp to 10Vpp @ 1KHz// 600ohm load / 0V offset, offset: from 0 to -5V or +5V max. (resolution 0.4% of full scale), vertical resolution: 8 bits, square wave rise/fall time: 0.2µs ◦sample rate: 12.5MHz, typical sine wave distortion (THD): < 1%, output impedance: 50ohm, frequency range: from 0.005Hz to 500kHz
- oscilloscope: bandwidth: two channels DC to 12 MHz ±3dB, input impedance: 1 Mohm / 30pF, maximum input voltage: 30V (AC + DC), time base: 0.1µs to 500ms per division, input range: 10mV to 3V/division ◦input sensitivity: 0.3mV display resolution, record length: 4K samples / channel, sampling frequency: 250Hz to 25MHz
- transient recorder: timescale: 20ms/Div to 2000s/Div, max record time: 9.4hour/screen, max. number of samples: 100/s, min. number of samples: 1 sample/20s
- bode Plotter: voltage range: 10mV, 30mV, 0.1V, 0.3V, 1V, 3V, frequency range: 1kHz , 10kHz, 100kHz, 500kHz, Frequncy start: 10Hz, 100Hz, 1kHz, 10kHz
- spectrum analyser: frequency range: 0 .. 120Hz to 12MHz, FFT resolution: 2048 lines
Maybe you should visit the following website to get a better price and specification details
Costumer review
6 of 6 people found the following review helpful.
Really great for the money.
By Ctech's Dad
We bought this for our son (a senior in High School and an aspiring Engineer). I should preface this with I work with Oscilloscopes for a living and as such am very familiar with them. I did a bunch of reading before purchasing this one and settled on it for a few reason:
1) It uses standard BNC style probes, making replacements very easy.
2) It is Dual Channel with a Function Generator output. This is essential, since it is nice to be able to compensate the probes to a known signal as well as look at signals in reference to each other.
3) For the cost it is the best deal out there when looking at bang for the buck.
4) Velleman actually has a website and reviews were readily available along with SW, manuals, etc.
All that being said understand this is a hobbyist level oscilloscope. This does not compare to something from LeCroy, Tektronix, Agilent etc, but then again for under $200 it shouldn't. It will allow someone who isn't ultra familiar with Oscilloscopes to gain some basic knowledge and have a little fun doing it.
Our son installed the SW (downloaded from the Vellemen site) on a relatively new PC with an AMD 8 core processor with 8G of RAM and a higher end graphics card running Windows 8 without any issues. He has been using it primarily to look at PWM signals from a Motor Control Board as well as different signals from the Function Generator. He is extremely happy with it.
3 of 3 people found the following review helpful.
Works but could be better
By Steve
PCSGU250 ($154.95 + $10.00 S/H) is a two-channel oscilloscope, plus a generator outlet, but only comes with one test lead. The Velleman box doesn't have a packing list. It came with a small manual mostly on software. There is no description on hardware connections. Contacted vendor "Legends Supply Company" and "Velleman" . It was confirmed that only one scope probe is provided with the PCSGU250. Velleman provided part number of additional probe for scope as "PROBE60S" and test lead for generator as "TLB4" but doesn't sell them directly. Amazon lists PROBE60S at $11.00 + $7.74 (S/H) and TLB4 at $5.99 + $9.99 (S/H) if you can find them. It doesn't have to be as difficult!
Prior to this product selection, I also considered DSO 2090 ($189.97 + free shipping). Including needed accessaries, both units would come up with the same ballpark cost. Velleman has a generator, while DSO has higher frequency (40 Mhz by DSO vs. 12 Mhz by Velleman). Value/price ratio is comparable. Somehow I felt like bought a car with only 3 wheels ... but it was not a "tricycle" even in fineprint.
Installed software PClab2000 and it runs fine. It supports NT, XP and Vista. PCSGU250 uses PC ground via USB as reference so the probe has a single lead. Haven't figure out yet how to connect a USB ground as reference for external devices (such as a radio) otherthan troubleshooting computer itself.
1 of 1 people found the following review helpful.
Does its job perfectly.
By Marc Sacks
I am an electrical engineering student who routinely works with more expensive and professional oscilloscopes. My intention in purchasing this USB scope was to have something at home that could get the more basic jobs done. However, this is not to say that the scope lacks features and abilities. I have found it to be easy to use, easy to transport and an excellent tool all round. The signal generator is a fantastic feature and the software allows you to generate many signals with great accuracy. There are also MATLAB programs you can use to create your own custom waveforms. The software also has many other fantastic measuring tools and other options. It's also USB powered which saves you from having to carry around a dedicated power cord.
The only issues I have with this scope are that the lead it comes with is of a poor quality (seems to have a high capacitance that the trimmer cannot eliminate), I ended up substituting it with one of my own. Additionally it is not built very solidly, the plastic casing is firm yet would definitely not protect the scope from a fall.
I absolutely recommend this to both beginners and more serious users - it will do its job superbly within the frequency range it's specified for.
0 comments:
Post a Comment