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Computadora de mano Bolsillo Alcance 40 ms/S (Sonda incluido)

3,9 de un máximo de 5 estrellas
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3,9 de un máximo de 5 estrellas 33 opiniones de EE. UU.

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  • 40 Mega muestras/sec en tiempo real
  • Ancho de banda hasta 10 MHz
  • Marcadores de señal para amplitud y tiempo
  • Medición de la alimentación de audio directa
  • USB cargador de batería incluido.

Información de producto

Detalles técnicos
Identificador de producto del fabricanteHPS140I
Peso del producto458 g
Dimensiones del producto2,6 x 11,4 x 7,4 cm
Número de modelo del productoHPS140I
Número de productos1
Número de piezas1
Incluye bateríasNo
Necesita bateríasNo
Tipo de bateríaNiMH
  
Información adicional
ASINB004KKTUV6
Clasificación en los más vendidos de Amazon nº126.496 en Bricolaje y herramientas (Ver los 100 más vendidos)
Producto en Amazon.es desde13 de septiembre de 2012
  
 

Descripción del producto

40 Mega muestras/sec en tiempo real; Ancho de banda hasta 10 MHz; Rango de Full auto opción; Sensibilidad hacia abajo a los marcadores de 0,1 mV; Señal de amplitud y la hora



Preguntas y respuestas de los clientes

Opiniones de clientes

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Opiniones de clientes más útiles en Amazon.com (beta) (Puede incluir opiniones del Programa de Recompensas de Opiniones Iniciales)

Amazon.com: 3.9 de un máximo de 5 estrellas 33 opiniones
30 de 30 personas piensan que la opinión es útil
5.0 de un máximo de 5 estrellas Great troubleshooting tool for a technician 8 de febrero de 2014
Por Ken M - Publicado en Amazon.com
Compra verificada
I purchased this primarily, so that I could do a quick check on RS-232 serial Com port signals. We build and maintain several different devices that utilize up to eight serial ports for communication between different hardware devices. This 140i is just so handy. I have a bench oscilloscope that can be painful to use when bench space is limited.

The Velleman is a good troubleshooting aid, I would not use it for any critical time or voltage measurement. I verified my source voltage with a calibrated DVM and got the following test results, expressed as DVM voltage/140i measured voltage; .392/.384, .933/.955, 3.215/3.270, 4.97/4.83, 8.98/9.00, 11.88/11.87. Plenty good enough for verifying power supply operation.

The battery pack is a 800 mAh ni-mh aaa arrangement similar to what many cordless phones use. The plastic case has a real cheap feel to it but the rubberized protective sleeve mostly covers that up and gives it a rugged personality. The LED back-light is plenty bright enough and the 'auto set' function seems to work well for what I need it for. The menu and controls can be figured out in a few minutes of playing with it. The actual instruction part of the manual is four, 4 x 6 inch pages which seems to be enough.

I have uploaded some images into the 'view and share related images' area above. One interesting one is this Vellman HPS 140i next to an iPhone 4s. This thing is small enough to be very handy.

The battery charger is apparently not a smart charger so that you may not want to leave this plugged in for more than 10 or 12 hours. The manual makes no mention of this, I am guessing that the charging current is low enough to not over charge and harm the battery. They do mention it could take 7 hours to fully charge a fully depleted (800 mAh) battery.

Why 5 stars? Bang for the buck and useability. This scope has both. I purchased this one for my personal use but have already had several co-workers ask where I bought it and for what price. I would guess the company might purchase one or two of these for general shop use. That is my endorsement. ;)
3.0 de un máximo de 5 estrellas Bruce's Oscilloscopes 19 de abril de 2017
Por Bruce's Reviews A-Z - Publicado en Amazon.com
Compra verificada
Well, I used this little Oscilloscope one time. The black plastic case is about 1/2 as thick as other Oscilloscopes, same type on the market. Also, the display is way too small for me to read the voltage at the bottom of the screen. All I could see was a quick wave form to inform me that my fuel injectors and ignition coil are both working properly. So, to be honest I am returning this little handheld Oscilloscope, for a much bigger screen, so I can read the voltage at the bottom of the screen better. This worked. That I can say. I am now 64 and need bigger screens, weather test equipment or telephone mobile. And of course it all happens here at Amazon where you always get a good deal for your money. I shop Amazon often enough to get what products and items I really need.
4 de 4 personas piensan que la opinión es útil
4.0 de un máximo de 5 estrellas Good for the price 10 de mayo de 2014
Por Ernst S. - Publicado en Amazon.com
Compra verificada
This does a lot for the money. My complaints are that the display is SMALL, it resets to automatic setting each time you turn it off,the scaling takes big jumps so you find you self with a signal in between settings a lot.... and there were almost no instructions packed with it. You have to go to a website. I can't quite see how to get it operating in AC mode to filter out a DC bias( which is probably on the website someplace) but it does do a lot for the price. Its really unfair to compare it to a $1000-$3000 piece of equipment though. If you keep this in mind you can live with the shortcomings. The small display was no surprise as its shown on the picture accurately and it is leaps and bounds above what a DMM or a peak reading DMM ( which have very low sampling rates) can do AND for a lot less money. No its not as powerful or readable as a full-on scope but it also is pocket sized and charges from a laptop USB port. I am evaluating this for use by field technicians who have limited space and weight availability when traveling. This should do the job for looking at signals and getting peak to peak reading with a fast (o-scope fast) sampling rate. It comes with a decent probe and tip accessories. I paid more for a replacement probe on a fluke scope than I paid for this mini scope and probe. Everything seems rugged and after a few weeks of dragging it around machinery, throwing it on my desk and sitting on it once... It still works great. I still reach for a full sized scope for looking close at a signal because I have one, but this thing is great for finding if there is even a signal I need to investigate and if you squint a bit you can pretty much see what you need to to troubleshoot something or test sensor behaviors. Plus if you have a big scope already, this somewhat solves the problem of needing a 200ft lead to look at the other end of the signal if you park a helper at the other end with this one as well and yell. This is a big step up from a bar graph or peak reading DMM and is VERY portable. The battery seems to last forever with intermittent use. And there is a freeze capture of the screen but you can't download it. Again.... consider the cost and size. Overall.... good!
4.0 de un máximo de 5 estrellas Good choice for casual user. 26 de diciembre de 2016
Por Jayh - Publicado en Amazon.com
Compra verificada
I don't need a real bench quality scope, just something convenient for an occasional system check (for example checking the wave form out of a crank position sensor on a vehicle with starting problems) and it seems fine for that. The menu system is a bit awkward at first but you quickly can get used to using it.

The case is reasonably sturdy, with a rubber shell so it can be handled as an instrument and not just as a novelty, it has a square wave generator for calibrating the probe and (according to tests I have read, has much better frequency response than the Nano.

[One more function I forgot to mention, the 'sweep' can be set to 1 hour per division, which works about to be about 12 hour sweep. You can use this for monitoring battery state over time, or watching for electrical glitches that may be happening overnight]
4.0 de un máximo de 5 estrellas For a hundred bucks, one can't complain too much ... 17 de octubre de 2016
Por Amazon Customer - Publicado en Amazon.com
Compra verificada
For a hundred bucks, one can't complain too much about a scope that does what it says it will. The screen is small, and my eyes are old; nuff said. For my use, the major drawback of this puppy is that all the parameters reset each time one turns it off. I have to reset the x and y scales, the zero, and the trigger level every time I turn it on. If I had it to do over, I'd put the $100 toward something bigger -- something that has electromechanical adjustments and a bigger screen.