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Small Cabin Forum / General Forum / Dirt Cheap Oscilloscope
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paulz
Member
# Posted: 25 Nov 2021 08:42
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Wondering if one of these will determine cycles and wave form on generators and inverters.

https://tinyurl.com/ja2n64ba

Description :
- DS213 is a "5-track, 4-wave line" digital storage oscilloscope for general-purpose electronic engineering task and it is based on ARM Cortex M3 core. DS213 uses FPGA to manage external ADC’s control and data cache mode. It provides 4 application partitions for loading and upgrading up to 4 different application firmware. It also has built-in 8MB USB flash drive for storing waveforms and upgrading system firmware. The oscilloscope code application layer is open source, and users can develop oscilloscope firmware according to their needs
Feature :
- Mini size, light weight, portable and handheld;
- It can store waveforms, making waveform analysis clearer and more effective;
- Multiple trigger modes, support Ascend/Descend Edge Trigger, Positive/Negative Pulse Trigger, and Logic Trigger;
- Powerful ability to process waveforms, it can automatically measure parameters such us voltage, frequency and pulse width.
Specification :
- CPU: ARM Cortex M3
- FIFO & Control: FPGA
- ADC: HWD9288-100
- Analog Channels: 2 [CH_A] [CH_B]
- Digital Channels: 2 [CH_C] [CH_D]
- Operation Channel: INV [CH_A], INV [CH_B], [CH_A]+[CH_B]、 [CH_A]-[CH_B]、[CH_C]&[CH_D]、[CH_C] | [CH_D]
- Vertical Sensitivity: 10mV-10V/div (1-2-5 STEP) (using X1 probe)
100mV-100V/div (1-2-5 STEP) (using X10 probe)
- Vertical Resolution: 8 bits
- Sample Memory Depth: 4 channels, 4*4K
- Coupling: DC, AC
- Max Input Voltage: ±40Vpp (using X1 probe) ±400Vpp (using X10 probe)
- Trigger Types: Ascend/Descend Edge Trigger Mode, Positive/Negative Pulse Trigger, Logic Trigger
- Trigger Mode: Auto, Normal, Single, Slow
- Trigger Source: [CH_A] [CH_B] [CH_C] [CH_D]
- Signal Source: Square Wave: 10Hz to 8MHz, in total 20 shifts and 3 Vpp Signal Sources;
- Sine/Triangle/Sawtooth Wave: 10Hz to 20MHz, in total 11 shifts and 3 Vpp Signal Sources
- Storage: built in 8M USB disk
- File Types: BMP, BUF, CSV
- Auto Measurement Types: Signal sequence/cycle/duty ratio, peak voltage/virtual value/max value/min value/average
- Cursor Measurement: Time value, Amplitude value
- Display Modes: 4 wave lines: Line 1: [CH_A], HIDE
Line 2: [CH_B], HIDE
Line 3: [CH_C], REC_1, REC _2, REC _3, REC _4, HIDE
Line 4: [CH_D], [CH_A]+[CH_B], [CH_A]-[CH_B], [CH_C]&[CH_D], [CH_C] | [CH_D], HIDE
- Sampling Mode: Real-time Sampling
- Sampling Rate: 100M Sa/s
- Battery: 1000mAh
- Size: 99.5mmx58.5mmx13.5mm
- Weight: 129g (with battery)
Certificate: CE, FCC
Package included :
- 1 x DS213 Digital Oscilloscope
- 1 x X10 Probe
- 1 x X1 Probe
- 1 x USB Cable
- 1 x Screw driver
- 1 x Cover Bag
- 1 x User Manual
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Whiskerbiscuit
Member
# Posted: 25 Nov 2021 14:00
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The actual oscilloscope itself from that ebay link is $289....I don't know much about this type, is that dirt cheap? Unless it's really important to have a miniature handheld one, seems to me you could get find a real solid-state workbench oscilloscope for a lot less. I paid $50 for a B&K one a few years ago. The $8.76 price is only for a red rubber case.

paulz
Member
# Posted: 25 Nov 2021 17:42
Reply 


Ah OK, oops. They publish all the specs like you're getting the whole thing.

There is an ad or Craigs list near me for a scope. I know nothing about these, does this sound OK?

Tektronix 5111 Storage Oscilloscope - $50

Tektronix 5111 Storage Oscilloscope with 5A15N, Amplifier, 2 5A18N Trace Ampl. will sell Ampl. sep. asking for all. well take ?? offer, trade for ???? cond. un-known. Oscill. Lites up with center dot.

ICC
Member
# Posted: 25 Nov 2021 21:14
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What would you use it for?

paulz
Member
# Posted: 25 Nov 2021 21:49 - Edited by: paulz
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To look and sine waves and frequency, if it would do that. Also the car guys use them to isolate misfires, but again I think that takes a special one made for it.

ICC
Member
# Posted: 26 Nov 2021 00:09
Reply 


Yes it can do that but it isn't a tool that can be used to get much useful information unless the operator knows what they are doing.

https://www.circuitspecialists.com/blog/what-is-an-oscilloscope/

The Tektronix for sale is old according to a friend. Old CRT tech, not digital, was v good when new, could still be working well

travellerw
Member
# Posted: 26 Nov 2021 09:08
Reply 


If that is all you want to do, then the cheap chinese scopes on Amazon will work. About $40.. They can easily measure a 60hz wave, plus pretty much any sensor in a car.

This is just one example. There are tons of them.

https://www.amazon.com/Quimat-Oscilloscope-BNC-Clip-Assembled-Finished/dp/B07QML4LJL/ ref=pd_sbs_3/142-5139973-1324063?pd_rd_w=oTz1W&pf_rd_p=3676f086-9496-4fd7-8490-77cf7f 43f846&pf_rd_r=EKTW1AMEJ1XQBAW4G16E&pd_rd_r=9a8237a6-1129-4ca4-9eba-51d48e4f059f&pd_r d_wg=a7sxP&pd_rd_i=B07QML4LJL&psc=1

paulz
Member
# Posted: 26 Nov 2021 10:44
Reply 


Looks good, I'll get one. Thanks!

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