UNI-T ej 61 B le hace una buen competencia a varios modelos FLUKE con la originalidad de completar componentes y demás para llevarlos a otros niveles. LOS UNI-T SON UN FIERRO!
This is a very good meter, i bought one not long ago and I am very impressed! I have compared it to the fluke meters i use at work and the build quality is not quite as good but the readings were very accurate, and there is some handy functions.
@Mtaalas Yeah, I definitely went on too long with this one. I think I may cut it into two or three segments, and remove one or two parts that may be repetitive or unnecessary. I've been collecting and fooling around with multimeters since well before I ever heard of Dave, but I've certainly learned a lot from him about what makes a good meter.
@lineartechbd1600 Sorry missed the bit about the high voltage reading. Maybe a bad battery could cause that - If you have no low-battery indication and still have that problem, the meter should probably be serviced or replaced.
@lineartechbd1600 I would say clean the input / range selector switch, inspect and if necessary resolder the input jacks, clean the inside of the input jacks and try to get into the test leads' banana plugs, inside the shrouds and clean them as well. If the test leads are flaky try another set. Probably nothing major wrong with the meter - probably contamination or bad connection of some sort. If the voltage readings are good this is a clue. That 17 ohms or so would not affect voltage readings.
I used the Fluke not as an absolute reference but for general comparison purposes. The thing about Fluke is confidence. I have a Fluke 8840A from about 1986, an 85III from about 2004, an 87V from 2010, a new 27II, and a new 289. Hardly a millivolt difference between them in measurement. I also have owned many Radio Shack and others, and they simply aren't as good. I had a 22-191 Radio Shack meter. It would measure 4.5 volts on a 5 volt source. Ten percent error is not acceptable. It adjusted OK.
The battery was removed and the tests were conducted by powering the Uni-T with an adjustable DC power supply. This is a test commonly done with multimeters. This is the first failure mode I have observed. Flukes, Tektronix, Agilent, even other Uni-T models I have seen pass this test just fine.
I think the UT-70D was around 150.00 new. The Fluke 87-5 is available at major suppliers for about 400.00. They're all over eBay from 200.00 in mostly new or nearly new condition. One does not need to pay full price for a new Fluke unless you just want a new one and a used one will not do. I have an excellent 83-3 on eBay right now for 85.00.
@DanFrederiksen Well, if you feel that way - but on this video I was only trying to show an issue with the low battery indication on the Uni-T and to show the inside of the thing, since there is some interest in the Uni-T meters. I have not misled anybody. In this video I was showing the (relative) accuracy of the Uni-T suffer long before there was a low battery indication. I think this is a very significant issue. The reference never was absolute, but better than a bench supply.
Not much point being able to measure 500 volts to within 0.01 volt when it's over a volt out :) Interesting to see that the internal shielding's connected to the COM terminal, I don't know if that's common to most other meters, worth bearing in mind if measuring current on the live side of a supply, as the supply voltage will be lurking not far beneath the case (and the buttons). Good review.
I don't think it's unfair at all - I see batteries drop off like this all the time, particularly 9V batteries. I think cold resets, which I did, should clear any lingering effect of a prior test. The Fluke was not the subject of this test, but the Fluke 87V is well known to show a low-battery indication WELL BEFORE accuracy suffers. BTW this UNI-T also suffers from somewhat random lock-ups, sometimes at booting up, sometimes after on a while.
Gosh. The Fluke 87 Series V (Series 5) is available all over the place. Practically any major test equipment supplier. Fluke has not replaced it in their line yet. Digikey, Graingers, Fluke.com.
I like that there's more people doing this stuff than just Dave. Different styles can be great and different target audience (Dave doesn't like to review cheap meters that much) Hope you make more of these, but honestly a little bit better organization of the review could be great. One thing or area at a time in orderly fashion, rehearse a couple of times so that the point your making will get to the viewer better when filming. Anyhow, great work. And thanks for the review.
Regarding the battery test, perhaps a little unfair! Voltage would not drop off like that in real life (multiple times also) so maybe that is why the warning was not repeatable. Also it would be interesting to have connected the second meter to the same supply to see how battery voltage affected readings?
@eurokid83 It's a cheapie- a "DMMCheck" sold on eBay a while back. Not a high-end reference but good to 4 or 5 digits anyway. It is adjustable, and I have messed with it, but only to agree with a fresh, new Fluke 87-5 with a fresh cal in hi-res mode. The diff was 1 or 2 millivolts tops. I've been thinking about taking down this video. TOO LONG.
There`s a guy who did a test on several cheap ( much cheaper than the Uni-T ) multimeters, a Fluke and the reference was one of those big HP meters for lab use. All were too close to justify Fluke`s price ( a Radioshak one that costed $5 did as well as the rest...). Fluke deviated too so I fear this video is biased as the Fluke is used as reference and it should not.
Thats why I like Fluke Meters . I currently Use a klein Meter for electrical work . I payed 100.00 from home depot .But the Fluke meter thats made in the usa Is about 300.00 cash . I the fluke seams more in terms accurate that matters alot in electronic repair .
i have a fluke and it started giving me trouble. when i touch the probes together sometimes i would get as much as 17ohms. I have tried different probes and still get these high readings. once i measured an outlet and instead of around 120volts i was getting around 170 volts. what do you think is wrong with my meter? do you think it just needs some switches cleaned?
@Shandybrother Pretty good meter but mine sometimes "locks up" and I have to turn it off and back on again. I guess you really do get what you pay for...
Hi Mark, I've just purchased the same multimeter and when looking at display straight the picture is blurred. When tilted, it's fine (please see my video). Do you think it is a faulty unit or is this normal ? Thanks.
@DanFrederiksen I would love to have an "absolute" reference. But even if I could afford it, any real world reference I might employ will only be about as good as the last digit or so on a 50,000 count meter. Good enough for my purposes. I have a Tek TX-3 which is in the same class as the Fluke, but I also sometimes use an old analog Micronta. I'm not testing a nuclear detector, after all, just fixing broken consumer electronics and having fun.
I will say, however, that a direct comparison of the UNI-T to the Fluke 87V is rather unfair. The Fluke costs about three or four times as much, and has a long history of product development and refinement.
@electrodacus If that is true, which I seriously doubt, then I would suggest that alone is poor design. A 9 volt battery with high internal resistance could trigger the low battery indicator, then the battery recovers when the meter's power is cycled, then fail to trigger a low indication a minute later. 9 volt type batteries actually fail in similar ways fairly often. Seen it several times.
Uni T could do with making the fuses more easily accessible and not behind a ton of self tappers,case and circuit board, im in the market for a meter thus browsing all the vids i can find, this seems to be a common issue with uni T's
Not true. Batteries, especially 9 volt types can and do die quickly sometimes, even with a light load. No other reputable brand behaves this way. Try it with a Fluke, Beckman, Agilent, Extech, Brymen, Tektronix, etc. You will see what I mean. Even other model Uni-T models do not behave this way.
@rapsod1911 I would be happy to if someone would send me one... ;-) I bought the 70D used on eBay. I can't just go buying meters in order to review them.
I've had very good luck generally, but look for eBay seller nbryson2005 he has a really nice 87 V on sale right now. He's the best of the best. Tell him Mark in Wichita sent you.
Why do we have to compare with the flukes? Are we missing something here? The uni t is no match for the fluke meter especially the 87.5. Come on really? Not latching on the uni ta. Yes latching. Nothings perfect. New a good sensible comparison video..to all the fluke uses this is an insult...
This is yet another video of take it apart and look inside. What in he'll does this prove? Nothing to be honest with you. The warranty is now void and you little warranty is useless. You gain nothing by doing this. Unless you of course was or is a specialist in this field to see what's brewing deep inside and the circuitry in itself. I hate these videos who proclaim to have some knowledge of this and yet some refuse to work afterwards spending a lot of money on these meters and winding up getting another one after the big screw up. Senseless. I have seen a few people of these guys rip em open only to have nothing in the end. You gain nothing from it. I just switch to another video with more of a common sense approach in testing the new meter being judged. Really a stupid no nonsense video. Learned nothing from it except how to use a screwdriver..
UNI-T ej 61 B le hace una buen competencia a varios modelos FLUKE con la originalidad de completar componentes y demás para llevarlos a otros niveles. LOS UNI-T SON UN FIERRO!
Sorry, I only speak English.
This is a very good meter, i bought one not long ago and I am very impressed! I have compared it to the fluke meters i use at work and the build quality is not quite as good but the readings were very accurate, and there is some handy functions.
@Mtaalas Yeah, I definitely went on too long with this one. I think I may cut it into two or three segments, and remove one or two parts that may be repetitive or unnecessary. I've been collecting and fooling around with multimeters since well before I ever heard of Dave, but I've certainly learned a lot from him about what makes a good meter.
@lineartechbd1600 Sorry missed the bit about the high voltage reading. Maybe a bad battery could cause that - If you have no low-battery indication and still have that problem, the meter should probably be serviced or replaced.
@lineartechbd1600 I would say clean the input / range selector switch, inspect and if necessary resolder the input jacks, clean the inside of the input jacks and try to get into the test leads' banana plugs, inside the shrouds and clean them as well. If the test leads are flaky try another set. Probably nothing major wrong with the meter - probably contamination or bad connection of some sort. If the voltage readings are good this is a clue. That 17 ohms or so would not affect voltage readings.
I used the Fluke not as an absolute reference but for general comparison purposes. The thing about Fluke is confidence. I have a Fluke 8840A from about 1986, an 85III from about 2004, an 87V from 2010, a new 27II, and a new 289. Hardly a millivolt difference between them in measurement. I also have owned many Radio Shack and others, and they simply aren't as good. I had a 22-191 Radio Shack meter. It would measure 4.5 volts on a 5 volt source. Ten percent error is not acceptable. It adjusted OK.
The battery was removed and the tests were conducted by powering the Uni-T with an adjustable DC power supply. This is a test commonly done with multimeters. This is the first failure mode I have observed. Flukes, Tektronix, Agilent, even other Uni-T models I have seen pass this test just fine.
I think the UT-70D was around 150.00 new. The Fluke 87-5 is available at major suppliers for about 400.00. They're all over eBay from 200.00 in mostly new or nearly new condition. One does not need to pay full price for a new Fluke unless you just want a new one and a used one will not do. I have an excellent 83-3 on eBay right now for 85.00.
I quite agree. I plan to give this one away with another piece when I sell it. Maybe bundle it with a 'scope.
Não vi esse multímetro em lugar algum pra vender.nem na uni-t
@DanFrederiksen Well, if you feel that way - but on this video I was only trying to show an issue with the low battery indication on the Uni-T and to show the inside of the thing, since there is some interest in the Uni-T meters. I have not misled anybody. In this video I was showing the (relative) accuracy of the Uni-T suffer long before there was a low battery indication. I think this is a very significant issue. The reference never was absolute, but better than a bench supply.
Not much point being able to measure 500 volts to within 0.01 volt when it's over a volt out :)
Interesting to see that the internal shielding's connected to the COM terminal, I don't know if that's common to most other meters, worth bearing in mind if measuring current on the live side of a supply, as the supply voltage will be lurking not far beneath the case (and the buttons).
Good review.
I don't think it's unfair at all - I see batteries drop off like this all the time, particularly 9V batteries. I think cold resets, which I did, should clear any lingering effect of a prior test. The Fluke was not the subject of this test, but the Fluke 87V is well known to show a low-battery indication WELL BEFORE accuracy suffers. BTW this UNI-T also suffers from somewhat random lock-ups, sometimes at booting up, sometimes after on a while.
Gosh. The Fluke 87 Series V (Series 5) is available all over the place. Practically any major test equipment supplier. Fluke has not replaced it in their line yet. Digikey, Graingers, Fluke.com.
Hadn't occurred to me actually. I'll see if I can have a look. I loaned the UNI-T to a friend, though...
I like that there's more people doing this stuff than just Dave. Different styles can be great and different target audience (Dave doesn't like to review cheap meters that much)
Hope you make more of these, but honestly a little bit better organization of the review could be great. One thing or area at a time in orderly fashion, rehearse a couple of times so that the point your making will get to the viewer better when filming.
Anyhow, great work. And thanks for the review.
Regarding the battery test, perhaps a little unfair! Voltage would not drop off like that in real life (multiple times also) so maybe that is why the warning was not repeatable. Also it would be interesting to have connected the second meter to the same supply to see how battery voltage affected readings?
@mdzacharias By the way - the variance is 1 or 2 millivolts at most...
hopefully the battery was measures with some load? ive just had to junk a 9v ,read 9,5 open voltage but 1.5 under a 15ma load....
@eurokid83 It's a cheapie- a "DMMCheck" sold on eBay a while back. Not a high-end reference but good to 4 or 5 digits anyway. It is adjustable, and I have messed with it, but only to agree with a fresh, new Fluke 87-5 with a fresh cal in hi-res mode. The diff was 1 or 2 millivolts tops. I've been thinking about taking down this video. TOO LONG.
There`s a guy who did a test on several cheap ( much cheaper than the Uni-T ) multimeters, a Fluke and the reference was one of those big HP meters for lab use. All were too close to justify Fluke`s price ( a Radioshak one that costed $5 did as well as the rest...). Fluke deviated too so I fear this video is biased as the Fluke is used as reference and it should not.
Can you review UT-60H? Or UT-71D? There are only few short reviews about those 2 DMMes. I am curios how fast is continuity test of UT-60H.
Thats why I like Fluke Meters . I currently Use a klein Meter for electrical work . I payed 100.00 from home depot .But the Fluke meter thats made in the usa Is about 300.00 cash . I the fluke seams more in terms accurate that matters alot in electronic repair .
i'm looking for that kind of review, many thanks to you
i have a fluke and it started giving me trouble. when i touch the probes together sometimes i would get as much as 17ohms. I have tried different probes and still get these high readings. once i measured an outlet and instead of around 120volts i was getting around 170 volts. what do you think is wrong with my meter? do you think it just needs some switches cleaned?
@Shandybrother Pretty good meter but mine sometimes "locks up" and I have to turn it off and back on again. I guess you really do get what you pay for...
Thanks for the reply. Battery is OK (9.64V). Looks like I will return it and get a new one then.
What are you using for a precision five volt source?
Hi Mark, I've just purchased the same multimeter and when looking at display straight the picture is blurred. When tilted, it's fine (please see my video). Do you think it is a faulty unit or is this normal ? Thanks.
@DanFrederiksen I would love to have an "absolute" reference. But even if I could afford it, any real world reference I might employ will only be about as good as the last digit or so on a 50,000 count meter. Good enough for my purposes. I have a Tek TX-3 which is in the same class as the Fluke, but I also sometimes use an old analog Micronta. I'm not testing a nuclear detector, after all, just fixing broken consumer electronics and having fun.
I will say, however, that a direct comparison of the UNI-T to the Fluke 87V is rather unfair. The Fluke costs about three or four times as much, and has a long history of product development and refinement.
@electrodacus If that is true, which I seriously doubt, then I would suggest that alone is poor design. A 9 volt battery with high internal resistance could trigger the low battery indicator, then the battery recovers when the meter's power is cycled, then fail to trigger a low indication a minute later. 9 volt type batteries actually fail in similar ways fairly often. Seen it several times.
Uni T could do with making the fuses more easily accessible and not behind a ton of self tappers,case and circuit board, im in the market for a meter thus browsing all the vids i can find, this seems to be a common issue with uni T's
I think you should remove the battery first to prevent short circuit. :)
Battery ind. is OK -- UNI-T can check battery once in minute or something in this case. Not so often as other
Thank you. Very Informatitve video. I don't count on multimeters other than fluke.
Yeah - as time goes by, I'm more committed to Fluke. "If it's a good meter - it's a Fluke!"
how many fluke you need to have perfect measurement? :)))
At least five. Two to measure voltage and current in, two for voltage and current out, and one to probe the unit under test. Plus an oscilloscope. :-)
does anybody knows from where can I buy a glass display for UT70C/UT70D, mine is broken, the chinese people don't answer to emails :(
nbryson (Nelson) also has a web site. DSS Technical Services, also known as PSM6.com
Mr Tony stark, describing multimeters?
@mdzacharias Yes you are right.
@DanFrederiksen OK, fine. I made this video over six months ago. Anyone can read these comments. This has gone far enough. You are blocked.
I'm not convinced - I tested it all sorts of ways.
Ive never heard of this, if the battery is good I would say the meter is defective.
Oh dear. Your voice sounds like Warren Zevon's. May he rest in peace.
@DanFrederiksen OK, I'm about to get defensive. Just what is your "truth"?
LOL.. Dan F. always causin' trouble across multiple parts of the 'net apparently :)
Thanks mdzacharias, for your review.
Not true. Batteries, especially 9 volt types can and do die quickly sometimes, even with a light load. No other reputable brand behaves this way. Try it with a Fluke, Beckman, Agilent, Extech, Brymen, Tektronix, etc. You will see what I mean. Even other model Uni-T models do not behave this way.
@rapsod1911 I would be happy to if someone would send me one... ;-)
I bought the 70D used on eBay. I can't just go buying meters in order to review them.
Thumbs up if you were watching Minecraft videos xD
I've had very good luck generally, but look for eBay seller nbryson2005 he has a really nice 87 V on sale right now. He's the best of the best. Tell him Mark in Wichita sent you.
@mdzacharias Sounds to me like you are the one not being reasonable or "pliable".
Why do we have to compare with the flukes? Are we missing something here? The uni t is no match for the fluke meter especially the 87.5. Come on really? Not latching on the uni ta. Yes latching. Nothings perfect. New a good sensible comparison video..to all the fluke uses this is an insult...
Uni-t wasted a whole screen on this meter as you can see on the bottom of the readings. Pure waste of money..
This is yet another video of take it apart and look inside. What in he'll does this prove? Nothing to be honest with you. The warranty is now void and you little warranty is useless. You gain nothing by doing this. Unless you of course was or is a specialist in this field to see what's brewing deep inside and the circuitry in itself. I hate these videos who proclaim to have some knowledge of this and yet some refuse to work afterwards spending a lot of money on these meters and winding up getting another one after the big screw up. Senseless. I have seen a few people of these guys rip em open only to have nothing in the end. You gain nothing from it. I just switch to another video with more of a common sense approach in testing the new meter being judged. Really a stupid no nonsense video. Learned nothing from it except how to use a screwdriver..
Well, you know what they say. Opinions are like assholes. Everybody has one and most of them stink.