TSP #12 - Rigol DM3068 6.5 Digit Digital Multimeter Review

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In this episode, Shahriar reviews the Rigol DM3068 6.5 Digit Digital Multimeter. The Model DM3068 DMM gives reliable, cost effective, full DMM capabilities measuring DCV, ACV, DCI, ACI, Resistance (2 & 4 Wire), Capacitance, Diode Test, Frequency, and Temperature. These DMMs are designed for simple and efficient bench top use, but include software options for datalogging and remote programming from almost any interface.
Shahriar demonstrates various functionality including a computer guided destructive LED IV tracer to investigate LED failure patterns. The DM3068 can be purchased for $799 US dollars from Rigol Inc. The DM3058 offers similar functionality at 5.5 Digits for $695 US dollars.
The Signal Path
www.TheSignalPath.com

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29 июн 2024

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Комментарии : 85

@mikenwa1355 10 лет назад

That was a terrific review! I especially like the way you included so much about the science of electronics and how you were able to graph your results on a computer. It was a great learning experience for someone like me, a non-engineer, who loves electronics as a hobby.

@AureliusR 7 лет назад

"We'll destroy a couple of these; but we'l do it through code." My man. Right up my alley.

@Laurinium 11 лет назад

Dear TheSignalPathBlog, thank you for this video - well done.

@kungfumaster8171 10 лет назад

Because of your video I have purchased this meter and have been happy with it

@rcmodelarz 12 лет назад

Great review, I am making a shopping list for my new lab and your videos are very helpful. I already decided on this multimeter and DP1308A power supply. Subscribed :)

@mjlorton 11 лет назад

Great presentation and review.

@Thesignalpath 11 лет назад

The non-latching will be updated with firmware. The boot time is not much of an issue for a non-portable device. It all depends on what your needs are. Thanks for commenting!

@JohnLRice 7 лет назад

Excellent review, thank you!

@cccyberfamilydk 8 лет назад

Thanks for the review. You helped me decide to by this DMM.

@iamruss74 3 года назад

Hello from 2021, I am thinking about getting this dmm. Would you get it again today? Thank you.

@cccyberfamilydk 3 года назад

@@iamruss74 Yes absolutly

@Nermash 12 лет назад

Great review, I enjoyed viewing it! That scratchy continuity buzzer is OK in 20$ instrument, but this is 6.5 digit measuring beast, it should have IMO fast latched buzzer. Rigol is really steping up in big boys game arena. Bigest suprise was liquid nitrogen in your home lab, that is above and beyond:))) Looking forward to seeing review of that DS6000 scope.

@BrunoPOWEEER 7 лет назад

FANTASTIC video review!!!!!! Thaaanks for all info, your channel deserve lot more SUBSCRIBERS =]

@uriahsky 12 лет назад

Thank you for doing such a great review of this meter. I am considering buying one now that I understand all that it can do. One thing I would like to see is how ALL of the advanced functions of either a meter like this or a Rigol scope could or would be used in actual testing of gear. There always seem to be so many functions in test gear that don't get used. Perhaps seeing how, when and why they are used could be very helpful.

@holalluis 10 лет назад

this is great stuff. Thank you!

@andymouse 4 года назад

What a great video...cheers !

@arcadeuk 12 лет назад

Great extensive review

@ggattsr 12 лет назад

Thanks for a great review.

@uptonroboticsptyltd3665 8 лет назад

Extremely good review

@Thesignalpath 12 лет назад

It is. I only demoed a fraction of its capabilities.

@ahmedgaafar5369 9 лет назад

thank you very much for all your high quality information videos. Sir, if you can tell me how did you connect the instrument to matlab and what interface did you use? that would be great. thanks again.

@thewii552 12 лет назад

How the heck did you manage to get liquid nitrogen? And awesome video, as always. I get pretty excited when I see you've posted a new video.

@kissingfrogs 2 года назад

Impressive meter. In the words of Chris Gammell - A moments silence for our fallen components.

@BAMFWrangler 9 лет назад

Awsome review! All that's missing is to let us know your connection method and matlab function code, for kick lol.

@Thesignalpath 11 лет назад

I have not opened this unit yet. I will find out.

@Tycho343 9 лет назад

Would be nice to plot LED brightness too.

@neuralnetwork653 8 лет назад

Great video! Poor burned LEDs :'(

@charly08031953 11 лет назад

Nice review. Anyway I have Agilent Handheld Capacitance meter (U1701B) and it can measure down to pf level. I have tried and it can measure a 33pf capcitor.

@DLTX1007 12 лет назад

It is surprisingly advanced ...

@jimmysyar889 4 года назад

Well now I know I'm definitely getting this over the siglent.

@amhedcastro3053 7 лет назад

Hello, nice video. One question, which program language did hoy use for the data adquisition?

@strange67x Год назад

Have you ever tried to check against a HP 3458 in the nano Ampere range ? From my experience, this is a really good reference 🙂

@woopsserg 11 лет назад

Hi, it has LM399H voltage reference. I made a couple of photos what's inside. Posted them it on EEVblog.

@willferber1 7 лет назад

Shahriar , thank you so much. I have a question, as I can store a DC voltage signal with the option save

@RomanKuechler 5 лет назад

Shahriar, thank you for this video. May I ask you something about the Self-Test feature? Did you ever execute the Self-Test? I'm quite confused because if I do that, I get different "PASS" and(!) "FAIL" readings, depending on which Measurement Functions Keys I've pressed before Self-Test? And, if I get a "FAIL" and I restart the Device, I may get a "PASS"? For example, press Diode Test (DIODE) and execute a Self-Test, what do you get? A "PASS" or a "FAIL"? If "FAIL", which erros you get listed?

@amhedcastro3053 7 лет назад

Hello Shahriar!!!Could you please make a tutorial about the USB storage? According to the manual should be easy ... but I have not done yet. Thank you.

@sbreheny 12 лет назад

Hi! An oscilloscope can sample very fast and draw a graph. The bench multimeter can only make much slower measurements and most cannot (by themselves) graph the result, but they are much more accurate and precise. In this case, this meter is a 6.5 digit model, which should be accurate to 0.001% or so in DC Volts and precise to 1 part per million. A scope usually has only an 8 bit A to D converter (because it has to be a very fast one), with an accuracy of about 2%, precision of 1 part in 256.

@JoseSilva-dy1op 7 лет назад

you are the higher level you tuber

@ElectronicsPubVideos 12 лет назад

Thanks for nice video. Rigol is doing almost good, some of its equipments are really worth the money while some other don't. Anyway its pretty much doing fine as a chinese brand (If I am not wrong, its totaly china based?!)

@witoldpiskorz9741 2 года назад

The literature says that the K thermocouple can measure T down to -270 C. I think the firmware should take this into account.

@amirb715 5 лет назад

Hello Shahriar, I am just about to make my final decision to buy a dm3068. I was hoping you could give me your opinion after having this for few years now. In particular, about the apparently small size of display characters, are yiu happy with the size of display? Also how is the update rate and drift of accuracy over the time? Thank you

@maynardr6 12 лет назад

I think you only need the bench multimeter if you SERIOUSLY need accuracy. I am a beginner too. I have the DS1102e, the DG1022, and a fluke 87V. I have yet to need accuracy beyond that of my fluke, much less a $700 bench meter. That said, if I am reading the manuals correctly, this Rigol bench meter has an accuracy 3 orders of magnitude better than the scope! Rigol DS1102e voltage accuracy 2mV/div-5mV/div: ±4% Rigol DM3068 voltage accuracy 0.0035% Fluke 87V voltage accuracy ±(0.1% + 1)

@MoreCharactersThanNeeded 2 года назад

This cost today about 750€, would you still recommend this or would you recommend getting something else? I did like the interface on the Rigol with the light-up buttons.

@KenWPeek 11 лет назад

Thanks for the great review-- if I ever need a bench DMM with this kind of accuracy, I will buy one of these. I am curious though-- did you ever open up the unit and look inside? I am interested in what voltage reference they use. (Agilent uses the LTZ1000A, some others use the LM399A, etc.) Can you take a look, or ask Rigol about this?

@GardeningZ 9 лет назад

This DM3068 seems very promising. I am curious about the residual error. Can you please check one thing for me? If you short the input with a very short cable, what will be the RMS AC voltage reading? The 34401A will reports about 3uV, and 34410A reports about 1uV.

@sbreheny 12 лет назад

I replied to your post before I watched the video - I see that this unit has a trend mode where it can graph the readings - still, this is much slower than a scope (which can capture millions or even billions of measurements per second for a short period of time)

@esavarem 11 лет назад

I feel it should have some kind of grid/numbers on the histogram/trend functions

@stlracer25 5 месяцев назад

Is there a way to set it up to monitor for trigger conditions or externally be triggered by a device that does that aspect for your measurement? Just curious cuz now I'm curious if my NI DMM's have that built in or a way to sample from an external trigger source.

@uitmcklong46 3 года назад

How much does this meter deliver voltage value when in open diode mode?

@jianliangsim5365 3 года назад

How do you calibrate DC voltage? my DC voltage measurement is not accurate

@krish2nasa 7 лет назад

Excellent, Thanks for your time. Do you have any plans to review Singlent DMM?

@Thesignalpath 7 лет назад

+Krish Rao (krish2nasa) I have already done that. It is on my channel.

@krish2nasa 7 лет назад

Hi Shahriar, Yeah, I already watched it, good job!

@MoreCharactersThanNeeded 2 года назад

I have the exact same kind of desk lamp in my lab. Just the rest of the stuff left...

@tonysfun 3 года назад

I'm researching which Benchtop DMM to get - 5.5 or 6.5 digits... This video is older, what would you buy today? Do you plan to make more up to date Benchtop DMMs suggestion or review. I like to stay under $1000 if I can. Thanks for your great videos!

@Thesignalpath 3 года назад

If you can stretch your budget (or find a used) DMM6500 from Keithley, it is a fantastic instrument. I have reviewed the DMQ version of it as well on the channel.

@tonysfun 3 года назад

@@Thesignalpath Thanks! You are super fast!!!

@teccellcelular9343 2 года назад

Vale a pena compra um multímetro para assistência de celulares ?

@Keith_Ward 12 лет назад

Impressive, is Rigol taking trade-ins? ;-)

@dwagner6 4 года назад

I know, old video...but did you ever explain why you have crab stickers on some of your gear?

@jooelywooely 11 лет назад

is that cup from a zojirushi rice cooker?

@santoroma17 7 лет назад

Can this display wattage?

@Mtaalas 12 лет назад

I wonder why the cables doesn't seem to be rated even if the banana plugs and the probes themselves are... a small oversight i think.

@FooBar89 6 лет назад

ooo, that old school HP amplifier :P

@elboa8 9 лет назад

I love your videos, but I wonder how many people watching could ever afford this meter? sigh!

@AriBenDavid 10 лет назад

These large transformers are more than 99.5% efficient. But that is at 60 Hz (AC). When the near-DC of one of these events comes in they are 0% efficient and all of the DC current turns to heat. A 1000 megawatt transformer therefore only produces a few megawatts of heat under AC excitation. The DC saturates the iron cores and then the AC finishes the transformer off.

@gacherumburu9958 Год назад

👍

@kaybhee6 Год назад

goot

@adfalmeida10 10 лет назад

Hi, Friend! plz let me know if this DM3068 is a true rms? tks

@lolsborn 10 лет назад

What software are you using for logging?

@aptsys 9 лет назад

MATLAB

@jonny393 6 лет назад

10:14...i feel like you're the only one thinking that way :D

@neutron7 7 лет назад

Im doing a meter review, better make sure i have some liquid nitrogen!

@Nikkuuu69 9 лет назад

Are you filming this at your house or at a lab? I wouldn't be surprised if you had liquid nitrogen in your home....

@sahirmathur 8 лет назад

+Nick Leijenhorst Exactly what I was thinking!

@BluefanNL 9 лет назад

Even before seeing the review I can say it's a bit of a false comparison. The 34401A has been around since 1992 and has proven to be reliable, something that is critical in labs and other professional applications.

@Thesignalpath 9 лет назад

I disagree. There is no way for me to review the reliability of a new instrument to the market. By your logic, no one should ever consider anything new then because the 34401A has been on the market since 1992. So far, I have not had any issue with the DM3068 and if it fails one day, I will update the review.

@BluefanNL 9 лет назад

TheSignalPathBlog I guess my post was a bit too one-sided, what I mean is that both are targeted at different markets. The 34401A has the agilent brand and reputation (for a reason) and that's partly what you pay for. Testing that reliability is difficult to say the least but it can be critical to some users. Others (also professionals) however can take the chance of a less well-known brand because the application is less critical. The Rigol may outperform the 34401A in features but the comparison between the two is a bit like comparing a sports car to a 4x4 (that's a bit exagerated but it's the idea), not fully comparable and with each their advantages.

@networkoncall1166 3 года назад

I do like your vids for the deep tech content; not often u c vids that goes this deep on nerd level. Only "problem " I have is that you are so f'ing cute... really distracting to watch such a super cute boy.... But on a serious note: do keep those vids coming; and keep the high nerd level please.

@user-vo8ji1im6j 11 месяцев назад

The thermocouple shows negative millivolts when measuring positive temperature

@joes5669 2 года назад

Looks like a very capable instrument. However, I'm very leery of Chinese test equipment manufacturers. China essentially has no intellectual property (IP) rules like the U.S. As a result, Chinese manufacturers routinely steal IP and develop platforms without the heavy burden of R&D that say Keysight must contend with. I'm not saying this is what Rigol has done - I just wouldn't personally purchase Rigol because this practice is practically ubiquitous in China and I don't want to risk supporting that kind of business model.