Anyone notice a new Brymen clamp meter, the BM037 that Dave apparently will market ?
We think you should put it through its paces Joe.
Anyone notice a new Brymen clamp meter, the BM037 that Dave apparently will market ?
We think you should put it through its paces Joe.
We? You and Dave?
Searching you will find it mentioned in 2020 so it's not a new product:
https://www.eevblog.com/forum/testgear/clamp-meter-safe-reliable-and-under-$200/
More info is here:
https://brymen.eu/shop/bm037/
https://brymen.eu/wp-content/uploads/biall/102194/102194.INSTRUKCJA_EN..2019-02-26.1.pdf
I have never transient tested a clamp meter. Not being an electrician, it's not something I would have much use for. I suspect the lack of interest suggests other hobbyist also have little interest in them. For automotive, I normally need something much more sensitive to detect high leakage currents. On the bench, I would typically want something with much higher BW. I like that old 1960's Tektronix P6042.
Guessing if Dave plans to sell it, he will make a review. You may want to suggest tests for him to run.
And put the fox in charge of the hen house, not bloody likely !
I did go back and look at that little pocket Brymen I had left outside and beat the crap out of. Mine over ranges at 600V.
My P6042 was a trash pick in VERY poor condition. It took a few weeks to repair it. Sorting bags of transistors looking for matched sets. I was able to get the bandwidth up to about 100MHz with it. Impressive for the age of the thing.
I think I once caught one of Dave's live streams maybe for the 121. I never see any notices about them. I'm skipping around it now. Is there something specific you would like me to watch or just in general?
While I think some of his testing being is not always directly useful, except for entertrainment, one thing I do value him for is irreverence and following facts where they take him. And he honestly documents data as it is, good and bad...
-40 degrees, 50K rotations, 100ft dropping, 14K transients, etc... seems like an ElectroBoom review, just for fun. Almost zero probability of this use. (I won't ever use it above 1000V (or even 400V), and if this happens will be 15K, 30K, or 100K? doesn't matter, this is Very Far from the Max Specs).
It is not merely a matter of the rated voltage 1kV you use and test your meter. If a meter is claimed to be rated to CAT IV 1kV meeting the IEC 61010 series in its user's manual, for example, it has to survive the IEC transient test requirement of 12kV from a hybrid impulse generator with a source impedance of 2 Ohms. It is a 1.2/50uS OCV + 8/20uS SCC combo waveform capable of delivering 6000A peak currents. It resembles the magnitude of transients at the source of the building's MAINS. If the meter failed the test, it failed the manual specs it claimed IMHO.
(...)
Ok, that's the end. I gave the video a thumbs up. Meter seems alright but isn't something I would have a use for.
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Ok, that's the end. I gave the video a thumbs up. Meter seems alright but isn't something I would have a use for.I think the meter might be alright as well with protection well above your average chinese product, but the fact the rotary switch is in the center and not on the side is a big limiting factor for the main audience of clamp meters (electricians). AFAIK the vertical reading tends to be preferred by this audience as well (in contrast to sideways). The one detracting factor I noticed was indeed the battery access - the threaded screws are a huge turnoff, especially for electricians that will put it to more use, since they don't carry two instruments to a job but only one that does everything.
I would get one if it is priced competitively, but the UT210E is indeed hard to beat for the electronics hobbyist.
AFAIK the vertical reading tends to be preferred by this audience as well (in contrast to sideways).
AFAIK the vertical reading tends to be preferred by this audience as well (in contrast to sideways).
I have an Ideal branded clamp meter (Pretty sure it's actually a Uni-T ). And they have this really neat dual display. I was expecting it to be gimmicky, but I have used the display on the end of the meter often.
AFAIK the vertical reading tends to be preferred by this audience as well (in contrast to sideways).
I have an Ideal branded clamp meter (Pretty sure it's actually a Uni-T ). And they have this really neat dual display. I was expecting it to be gimmicky, but I have used the display on the end of the meter often.That is pretty neat indeed and I can see its practical aspects.
Although I wonder if it weakens the housing.
I tried to find the OEM but to no avail. I tried CEM, Mastech, Uni-T and Appa.
Looks like they used two 5mm PTCs in series rather than adding the surge rated resistors we commonly see.
LOL, frozen KS !
Would you like ketchup with that Sir ?
That Keysight U1231A was damaged beyond repair at 5kV 100us FWHH 2 ohm source. The same level that sent the UNI-T UT139C to the recycle bin. What level will take out the U1282A? Add your vote.
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I like when things repeat and expect it to fail at the same level the previous Keysight was damaged at.
That Keysight U1231A was damaged beyond repair at 5kV 100us FWHH 2 ohm source. The same level that sent the UNI-T UT139C to the recycle bin. What level will take out the U1282A? Add your vote.
***
I like when things repeat and expect it to fail at the same level the previous Keysight was damaged at.
Since the 1231 failed near the CATIII600 6k transient its rated for I expect the 1282 to be near it's CATIV600v rating of 8k.
That Keysight U1231A was damaged beyond repair at 5kV 100us FWHH 2 ohm source. The same level that sent the UNI-T UT139C to the recycle bin. What level will take out the U1282A? Add your vote.
***
I like when things repeat and expect it to fail at the same level the previous Keysight was damaged at.