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Scope leads

  • WrenchWizard88
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4 months 3 weeks ago #88709 by WrenchWizard88
Scope leads was created by WrenchWizard88
I was wondering if anyone has ever used Rotkee oscilloscope test leads? I was thinking of getting the TL-light-G test lead with grounding for testing things like cam sensors crank sensors etc. I just dont know how good they are and wanted to give them a try. Any feedback will be good and very much appreciated.

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  • Tyler
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4 months 2 weeks ago #88841 by Tyler
Replied by Tyler on topic Scope leads
I say go for it. I haven't used that exact test lead, but I've bought other leads and sensors/probes from them before. All (surprisingly) high quality, given the price.

Only thing I don't like about that TL-light-G is how short the grounding cable is. Forces you to find a ground close to the component you're testing.

Sucks that they don't offer it on the Amazon Rotkee store front...
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4 months 2 weeks ago #88847 by WrenchWizard88
Replied by WrenchWizard88 on topic Scope leads
aw man that is a disadvantage I do like the ground cable to be a bit longer when it comes to the leads just so I can use the battery or the stud for ground do you have a recommendation for some good leads I have the hantek leads and they are pretty good I was hoping maybe there was some a little bit better and thank you very much for the feedback I very much appreciate it

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4 months 2 weeks ago #88850 by Tyler
Replied by Tyler on topic Scope leads
No problem!

Only Hantek lead I've owned was a BNC to banana adapter, so it's tough for me to compare quality. I'm using a Pico set of test leads right now, had them for a couple years:

www.aeswave.com/Premium-test-leads-3M-long-set-of-4-p9543.html

Unfortunately, they had the same problem as the Autel leads - the solder joints at the banana jacks flex and break with use. Ended up chasing my tail a few times while trying to make a good connection before I realized the lead was the problem.

I ended up having to repair three out of the four leads with solderless jacks. Maybe that's just par for the course with this type of lead? Maybe I'm just rough on them.

If I were gonna buy another set, I think I'd try this one from Warwick:

www.jarheaddiag.com/shop/p/warwick-test-...o-banana-scope-leads

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4 months 2 weeks ago #89591 by WrenchWizard88
Replied by WrenchWizard88 on topic Scope leads
Perfect thank you very much on the information I greatly appreciate it. One last question that is somewhat the same topic but when it comes to selecting the 1x, 10x, 100x setting on a scope what is the ideal setting to use or how do you know what the ideal setting to use when it comes to using an amp clamp or anything in general like when using attenuators etc. if that question makes sense ive looked everywhere online and cant find a good explanation on when to use the right setting

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4 months 2 weeks ago - 4 months 2 weeks ago #89616 by Chad
Replied by Chad on topic Scope leads

when it comes to selecting the 1x, 10x, 100x setting on a scope what is the ideal setting to use



It depends on your scope and the voltage that you are measuring. The amount of voltage that a scope can handle is limited. Some scopes can only handle an input of up to 50 volts. Others can handle up to 400 volts. 

If your scope can only handle an input of 50 volts, measuring primary voltage of an ignition coil, which can spike 400+ volts, could damage your scope.
When you need to measure voltage that goes beyond the limits of you scope, the answer is to use an attenuator.

An attenuator reduces the voltage that enters the scope.

If you used a 10x attenuator, the voltage entering the scope will be REDUCED by 10X. Every thing displayed on the scope screen will be 1/10 of the actual voltage.  So, a 400 volt source will be reduced and enter the scope and be displayed as 40 volts. Using the setting of 10X, tells the scope that you are using a 10X attenuator. The scope will then multiply the voltage that it actually received (40 volts) by 10 and display it on the screen as 400 volts to match the REAL voltage that is being measured.

In short, select 1x, 10x, or 100x based on the attenuator that you are using. If you are not using an attenuator, select 1X.

"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."

I have learned more by being wrong, than I have by being right. :-)
Last edit: 4 months 2 weeks ago by Chad.

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