× A place to discuss hardware/software and diagnostic procedures

Guide to Choosing a Scope on a Budget

More
24 Dec 2019 15:28 - 24 Dec 2019 15:30 #36082 by Masso
Replied by Masso on topic Guide to Choosing a Scope on a Budget
Hi, you still stand behind the Rigol, Martin?
I’m thinking of getting one based on your post.
I’m mainly going to use it to diagnose high/low Canbus waveforms to see if communication between modules in a car is faulty.
Simple hall sensor pulses, stuff like that.
Also ignition coils and comparative compression tests on start motor.
Would the 1054Z be enough you think?
I’m a hobbyist, but hobbling so long, I can run with the professional pack, only I don’t have customers to recoup tool costs.
It would be great to have an oscilloscope in my toolkit.
Thanks in advance & Merry Christmas! :)
Last edit: 24 Dec 2019 15:30 by Masso. Reason: Grammar shmammar

Please Log in or Create an account to join the conversation.

More
18 Jan 2020 12:21 - 18 Jan 2020 12:25 #36710 by stioc
Replied by stioc on topic Guide to Choosing a Scope on a Budget
Great suggestions here! However, unless I missed it I didn't see the SnapOn MODIS on the list of affordable 4 channel portable scopes. It's basically the big brother of the Vantage Pro and the older model to the Verus with all the guided component tests as well as a full scanner etc.

I purchased mine about 3 yrs ago on ebay, came with the 14.4 software. Then I pieced together all the components (battery, charger, test leads, diagnostic keys, OBDII cables etc). I think I have $750 into it but I see them for sale on ebay for around $500 time to time. What I really like about it is the 4-channels. Say you need a cam/crank correlation and you want a sync with the ignition coil or injector, you need a 4 channel scope. Or you want to see data from the two banks on a 6 or 8 cyl engine with a sync, you need a 4 channel scope. I've considered selling mine to move up to the 4 channel PICO Auto for a couple of features I'd like but as a DIYer I can't bring myself to swallow the price tag on those bad boys. I may trade up to a Verus though.

Unfortunately the screen on my MODIS is just starting to go dim/dark from years of use which still isn't too bad actually but for crystal clear pic I just connect it to the my 20in LCD or copy the files over to my PC and view them in the free ShopStream software.

Attachments:
Last edit: 18 Jan 2020 12:25 by stioc.
The following user(s) said Thank You: Noah, Andy.MacFadyen

Please Log in or Create an account to join the conversation.

More
18 Jan 2020 13:36 #36712 by Noah
Replied by Noah on topic Guide to Choosing a Scope on a Budget
The Modis is a good choice at the right price point.
That was my first scope as well

-Seems to me that I could live my life, a lot better than I think I am.
I guess that's why call me The Working Man.-

Please Log in or Create an account to join the conversation.

More
28 Mar 2020 13:09 #38724 by Dtech494
Replied by Dtech494 on topic Guide to Choosing a Scope on a Budget

I was thinking about getting the Pico 2205 non automotive oscilloscope but then I noticed the Rigol DS1054z which I really like (but would have to save up for). I noticed that these scopes use "passive probes" and not the type of probes I am used to on my little Uscope.


Are passive probes ok to use for automotive testing? I'm assuming that the additional lead coming out of the passive probe is the ground wire which would take the place of the Uscope conventional black lead to ground?


Yes the passive probes do work. The main issue is that they are often too short.
For convenience you will likely find that you pick up a lead or even two with banana plugs some backprobe pins and some slip on aligator clips.
I suggest getting at least one 20:1 attenuator.

Yes the little small lead is a ground which I just use another jumper wire and attach to it.

Please Log in or Create an account to join the conversation.

  • Andy.MacFadyen
  • Andy.MacFadyen's Avatar Topic Author
  • Offline
  • Moderator
  • Moderator
More
28 Mar 2020 19:33 #38738 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic Guide to Choosing a Scope on a Budget
Passive probes are the standard probes you get with any Oscope with BNC sockets fine if you are working on high frequency equipment on the bench but they aren't required or much use for automotive work to the extent I would suggest they are a menace.

As already suggested by Noah if you have a BNC Oscope buy a couple of BNC to Bannana plug adpters or buy a couple BNC to crocodile test leads these are as cheap as chips. BNC extension leads are available or using BNC Female to Female Adapters you can use CVC TV cables as extension cables.

" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)



Please Log in or Create an account to join the conversation.

More
13 Jun 2020 05:03 #40650 by chisel
Replied by chisel on topic Guide to Choosing a Scope on a Budget
How about the adapters, probes etc specific to automotive use?
Simple to add them to the DS1054Z?

Please Log in or Create an account to join the conversation.

  • Andy.MacFadyen
  • Andy.MacFadyen's Avatar Topic Author
  • Offline
  • Moderator
  • Moderator
More
13 Jun 2020 05:59 - 13 Jun 2020 06:03 #40651 by Andy.MacFadyen
Replied by Andy.MacFadyen on topic Guide to Choosing a Scope on a Budget
Any standard BNC accessory will work with any scope with a standard BNC connector or you can use a BNC to banana adaptor ---- nb not PicoBNC+ accessoroies which are powered from the PicoBNC+ port.
However most Labscopes do not have an x20 scale setting for 20:1 voltage attenuators often used for primary ignitions. This can be worked around by using either 100:1 attenuator or using the 20:1 attenuator and multuplying the voltage readings by 2.

BUT keep in mind bench labscopes (with the notable exception of Owon which have a battery pack option) are tied to a mains electricty supply and this can be very restrictive for automotive work. Rigol are a very respected brand for bench labscopes, if this is the route you want to go down what I would recommend trying to find out how good the PC software associated with the scope is as this is often a weak area on Chinese brands.

" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)



Last edit: 13 Jun 2020 06:03 by Andy.MacFadyen.

Please Log in or Create an account to join the conversation.

More
24 Sep 2020 12:34 #43374 by chuckw
Replied by chuckw on topic Guide to Choosing a Scope on a Budget
I have been working a truck I picked up for a couple of months now. It is was a non-running 2000 Dodge Dakota Sport 4x4 with the 3.9L and automatic transmission. After many hours of work and diagnostics with my multimeter I have everything fix and it is running, not well, but running. It will “sometimes” sputter and backfire (exhaust) and stall, then other times it will start right up and run well. I think I hear a slight miss every now again, but once it is started it stays running and is drivable with no issues. The last code I have to track down is the infamous P1391. I have replaced the crank sensor with Mopar part and the cam sensor with aftermarket, Mopar no longer available. Yes I tested the sensors with my multimeter and determined the sensors were bad. Once I got the new sensors in I was able to see the 0 to 5 volt change on the crank sensor. Anyhow, I’m at the point where I need a scan tool to figure this out. Now I’m just a DIY’er and don’t want to spend $5000 or $1000 on a scan tool. I’m looking for a recommendation for say under $500. There are so many out there and you can find reviews, good and bad on all of them. I was looking at the Autel MX808 and wanted to get a professional opinion on this one or what you would recommend.

Please Log in or Create an account to join the conversation.

More
02 Oct 2020 23:08 - 02 Oct 2020 23:19 #43597 by wiseleo
Replied by wiseleo on topic Guide to Choosing a Scope on a Budget
Look for a steal on Snapon gear. Just got both non-Euro Solus Pro and Euro-unlocked Modis running 16.4 for $900 with multiple sets of personality keys. The Solus Pro will sell for most of that price, so my Modis is likely to be near-free :)

Anyway, Snapon gear is valued by its software. Units without Euro cars unlocked cost less. Units older than 15.2 cost a lot less. There is a specific problem that was patched related to Toyota on 17.4 and 18.2, but that will not affect this platform. You will not be able to update them though. 17.2 was the last software released for Vantage Pro/Solus Pro/Modis family. I don't remember if that is accurate. If you just want a scope, any version of Vantage Pro/Modis will do. They are great scopes and will only get cheaper. The beauty of them being Snapon is they are easy to resell when you are done troubleshooting whatever ails your car, if you have no further need for them.
Last edit: 02 Oct 2020 23:19 by wiseleo.

Please Log in or Create an account to join the conversation.

More
09 Jan 2021 15:51 #45798 by stevieturbo
Replied by stevieturbo on topic Guide to Choosing a Scope on a Budget
Does anyone have any thoughts on this ?

Seems to have close links to the Ukranian USB Autoscope, but this seems a good bit cheaper, LAN based, and with 500v tolerant inputs.

Doesnt seem so easy to buy though....wish these places would do Paypal. On a price point though, it'd be a good starter ? and it seems to allow the use of the same diagnostic "scripts" the USB Autoscope offers.

rotkee.com/en/category/automotive-diagnostics

I have an 4ch Hantek and it is crap. Although the Autoditex Carscope Pro seems decent.

The LAN aspect appeals to me, as it's then make for easy WiFi, although perhaps it may have some limitations ?

Please Log in or Create an account to join the conversation.

More
19 Jan 2021 12:04 - 19 Jan 2021 12:05 #46038 by markhenry9069
Replied by markhenry9069 on topic Guide to Choosing a Scope on a Budget
Thanks for the your informative guide to choose a scope on my budget. I recommend RIGOL DS1102E oscilloscope for scientific work.
Last edit: 19 Jan 2021 12:05 by markhenry9069. Reason: word missing

Please Log in or Create an account to join the conversation.

More
04 Feb 2021 15:52 #46525 by stevieturbo
Replied by stevieturbo on topic Guide to Choosing a Scope on a Budget

I found two DSO from the East that anyone here might look into. Haven't tried them but they look solid and nice. Their forums has a lot of information but you have to use google translate. If only language is not a barrier.

USB Autoscope


USB Autoscope forum


Diamag

Diamag forum


Interesting on the Diamag, didn't notice that one before.

Looks very similar to the USB Autoscope and the Rotkee, both from same region. Pricing seems very good too. And they all run Andrey Shulgin's scripts for easy diagnosis and interpretation of testing.

Please Log in or Create an account to join the conversation.

More
05 Jun 2021 09:01 #49327 by la1z24
Replied by la1z24 on topic Guide to Choosing a Scope on a Budget
You can hack the pico auto software to recognize a non-pico auto scope now.



If we keep this on the hush it will probably work a lot longer. That is why I have not posted it to IATN or Diag.net

Please Log in or Create an account to join the conversation.

More
22 Jul 2021 17:25 #50126 by Wightscope
Replied by Wightscope on topic Guide to Choosing a Scope on a Budget
Been around for a few years that one! As all of Pico's resource is going into Pico 7 I doubt it will be changed any time soon so no worries there.

MM's channel is great for making the most of the 2204.

Please Log in or Create an account to join the conversation.

  • Not Allowed: to create new topic.
  • Not Allowed: to reply.
  • Not Allowed: to edit your message.
Time to create page: 0.584 seconds