There really needs to be a requirement here for people to state where they live before asking for any recommendations. This comes up over and over and over again. Where do you live? It is hard to tell you the best place to buy or what to buy if we have no idea where you are!
If they replaced the cat text with that, would your perceived value of the product be better, worse or unchanged? I'm curious to know.
Numerous people have claimed that they consider it poor value for money solely based on the false cat rating so I'm curious if people would consider it better value if it made no claim to being safe at all
People don't seem to have an issue with sub $50 meters which make dubious claims about safety, so how is this one any different? Its more expensive but it also brings a tonne of features to the table.
If you are buying a meter with an expectation that it meets the claimed safety rating then yes it would be poorer value for money if it failed to meet them. Value is all about matching price to expectations. It isn't a measure of features per dollar.
For those who are not familiar with CAT rating requirements, from Wikipedia:
...The required values can vary from 0.04 mm for single insulation CAT II, 50 V, to 28 mm for double insulation CAT IV, 1000 V. The exact values are defined in the international standards.[1] Such standards should be followed rigorously during the design process of the appropriate equipment.
So yes, the fact it does not meet CAT IV standard is pretty clear.
But I wouldn't go so far as to discredit this meter altogether. Having the ability to measure power is one of its main selling point and most electricians only do mains related work and would not need an accuracy higher than 0.1 W.
Except that you DON'T want to use this on mains.
For those who are not familiar with CAT rating requirements, from Wikipedia:
...The required values can vary from 0.04 mm for single insulation CAT II, 50 V, to 28 mm for double insulation CAT IV, 1000 V. The exact values are defined in the international standards.[1] Such standards should be followed rigorously during the design process of the appropriate equipment.
So yes, the fact it does not meet CAT IV standard is pretty clear.
But I wouldn't go so far as to discredit this meter altogether. Having the ability to measure power is one of its main selling point and most electricians only do mains related work and would not need an accuracy higher than 0.1 W.Except that you DON'T want to use this on mains.
it's not reason alone to lump all of one brand of meters together and declare universally "Uni-T Meters Suck".
But I wouldn't go so far as to discredit this meter altogether. Having the ability to measure power is one of its main selling point and most electricians only do mains related work and would not need an accuracy higher than 0.1 W.
Why would an 'electrician' buy that multimeter when these things cost about $30?
let me play devil's advocate for just a moment...
The mistake that is too easy to make, and potentially deadly when made with a poor quality meter, is to probe a high energy voltage source when your probes are plugged into the current terminals. There aren't many other devices which we regularly connect to mains that have this potential for deadly user error.
The Kill-a-Watt does not claim a CAT rating.
That mains dongle that comes with the UNI-T meter would seem to prevent the human error of mixing up the voltage and current probing. That's worth something, in my book.
The Kill-a-Watt doesn't allow you to move leads around or select a low-impedance path through it.
Except that Dave couldn't actually use it in the country where he bought the meter - more evidence that they simply don't care about customers and don't deserve anybody's business.
Except that Dave couldn't actually use it in the country where he bought the meter - more evidence that they simply don't care about customers and don't deserve anybody's business.Pretty sure the meter Dave obtained is analogous to a grey import, regardless of what the 'distributor' would have him believe.
Quote from: TMMExcept that Dave couldn't actually use it in the country where he bought the meter - more evidence that they simply don't care about customers and don't deserve anybody's business.Pretty sure the meter Dave obtained is analogous to a grey import, regardless of what the 'distributor' would have him believe.
It will be interesting to see if Uni-T responds to this video, it could seriously affect their sales.
(I'm betting they won't, pretty much everything inside the meter is indefensible...)
i can't afford a Fluke at the moment and i wonder if there is any intermediate segment between no-brand cheap shit, UNI-T down and The Real Instruments up. I thought i had a good deal with my UNI-T meters but now Dave says "don't buy that crap", more or less.
I've been thinking of buying an oscilloscope and, well, i would have gone for a UNI-T one but now i am not so sure.
What i am having trouble understanding is how people are willing to accept that the chinese UT61 series for $60 is a good deal but the UT71 series for $130 isn't. Both promise cat IV and fail to deliver.
Quote from: TMMExcept that Dave couldn't actually use it in the country where he bought the meter - more evidence that they simply don't care about customers and don't deserve anybody's business.Pretty sure the meter Dave obtained is analogous to a grey import, regardless of what the 'distributor' would have him believe.
It will be interesting to see if Uni-T responds to this video, it could seriously affect their sales.
(I'm betting they won't, pretty much everything inside the meter is indefensible...)They have actually responded to the design of the UT71 before https://www.eevblog.com/forum/reviews/uni-t-multimeter-ut71d-unboxing-and-teardown/15/
I think Dave owes it to us to tear down a UT139, UT181 or UT171 series before making blanket statements about the entire brand.
Well it is a little better than the 71E but still . Look at the clearance between the 10A fuse and the shunt resistor . Must be 2 or 3 mm clearance . They still have to do their homework at UNI-T
What is inside the power adapter for the meter, it could have its own shunts etc and not pass the full current and voltage to the meter, not that I will be buying one. I did however buy a UT61E on the recommendation's from this forum 2 years ago. I have now just joined the yellow peril brigade and ordered a Fluke 115 for work on power circuits this is to replace my old dinosaur AVO. I was thinking of an AVO410 but why buy a re-badge Chinese meter.
Anyone notice the solder joint adjacent to the ADC pin 1 @ 8:55? It looks marginal at best.
What i am having trouble understanding is how people are willing to accept that the chinese UT61 series for $60 is a good deal but the UT71 series for $130 isn't. Both promise cat IV and fail to deliver.Mt UT-61C bought from Reichelt in Germany is silk screened "CATIII 300V" and "CATII 600V". It also displays silk screened TÜVRheinland and GS logos. The TÜV logo for some reason says ID:0000000002, though.
What i am having trouble understanding is how people are willing to accept that the chinese UT61 series for $60 is a good deal but the UT71 series for $130 isn't. Both promise cat IV and fail to deliver.Mt UT-61C bought from Reichelt in Germany is silk screened "CATIII 300V" and "CATII 600V". It also displays silk screened TÜVRheinland and GS logos. The TÜV logo for some reason says ID:0000000002, though.Yes, but most people who have purchased the UT61E have the chinese version with no MOVs/SGs and purchased it with the knowledge that it shouldn't be used on high energy circuits.