bk precision BK880 LCR meter-2, buyer beware.
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- Опубликовано: 26 авг 2021
- after using it for a while i made some conclusions, some are not a problem, some are, you may judge yourself if this meter is worth the money or not.
i am planning a third vid which will contain the info of the first two(rather hastily made) videos, bk precision asked in an email about my experience with the aftersales dep, i did send them my unsalted opinion, havent heard from them since.... 
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SO!!!!! I was concerned about the battery issue, so after being in storage for 6 months, I got it out and turned it on. The battery was still good, showed full charge, so the idea of it only lasting a few weeks was not the case. My meter is only a year old, so maybe the battery has been upgraded since your video is 2 years old???? I always give it a full charge before I store it away, but now that Summer is over it will be left out as I will use it several times a week as I repair some electronics..
Robert
Update, I decide to go check current flow in standby using my Fluke 289 meter. 9.98UA so that tells us why the battery drain was so low after 6 months in storage...
Thanks for sharing the Bk880 videos Robert. Was conducting some search now for the Bk880 since myself experiencing calibration-issues(unable to successfully calibrate in the meny anymore). It has started to show about 50% 'to low' on capacitance measurements. Still trying to sort it out, but in the meanwhile might have to purchase a second different meter. Not necessary only because of this, but for future work.
Did contact BK-support also. And they responded fairly quick. They want me to do a couple of measurement test (according to their attached data-sheet), and send back to them. They noted also that it could be necessary to return the Bk880 for factory calibration. ,,,For now me await a littlebit to do these things. Have noticed it intermittent showing correct value (..very seldom, but it happens) __ //Thanks again for sharing your other findings in your video. __br, from norway.
Hope mentioned correct name. (Someone referenced Robert in your channel somewhere)
Thank you for posting this video, it was really helpful! I was about to buy the BK 880, but after watching this video I got second thoughts. I won't use the meter on a daily basis either so having to deal with the battery problem didn't seem like something I wanted to put up with if I could avoid it. I ended up with a Keysight U1733C. It's no secret that despite their similar look those meters are complety different. And Agilent/Keysight chose a different approach: The power button is a latching type. This doesn't necessarily mean 0µA off-current and I haven't measured it yet, but it looks promising... The Keysight doesn't have 4-wire measurement capability, the test voltage is fixed and some specs are a littler bit worse, but for my use cases it seems plenty capable. Also: My first Keysight product. The orange color is nice ;)
I have the same BK 880 LCR meter that I purchased this week. The current draw on the battery when the device is OFF is 65 uA. So the claim of 11 uA is marketing BS.
An honest review. Thank you
(..On my previous comment) ..I might been wrong on how to go about measuring with the Bk880, and thereby maybe there was no error on my instrument ...Have always set measurement-frequency to 10 kHz. After reduced it to 1 kHz (for measuring ElLyttic-Caps) it seems to measure much more normal. __I must say, it is a somewhat broad field regarding measuring Ac-reactive components. Constantly learning. __So, lets see (and me hope) for now, whether it was user-error from my side. Have nice upcoming weekend.
When you're measuring large electrolytic capacitors, you really need to set it to either 100Hz or 120Hz to get an accurate reading. This is because a large value capacitor will filter a 100kHz signal down to almost an unmeasurable level.
The calibration needs to be done as two steps. You only ended up calibrating on short. You have to terminate open cal by hitting the cal button while open.
It would be interesting for you to show your set up to do several measurements with your NanoVNA. How do you do with the NanoVNA to measure the ESR?
I would be happy to explain but i am running low on time and secondly i would be just regurgitating chris grossman who did an excellent job i explaining to me how you can do that.m.ruclips.net/video/lO97K8th_uU/видео.html
The video is two parts and should get you started.
I am willing to make a whole series of videos about the nano but of course i am not the first to do so and there are plenty others who did an excellent job, i can advise you to start with w2aew channel, allan's videos are sublime.
The fixture you may need can be bought on aliexpress for 3-4 dollar as a solder-kit, or in eu: www.passion-radio.com/sdr-accessory/testboard-rf-1077.html
Btw, my name is Richard, greetings from the netherlands
bk "PRECISION" so out of spec must be precision. huh??
I have same one and i don't agree with you. Because if you know that it is the case you usually don't leave it offline not used at all. If you are real electronic person then you usually using it on weekly basis ..even if it isn't daily..once per week for sure..but ofc i don't have it off for months..i don't see any reason for that..it isn't that kind of meter. For that you need different meter
The battery draw on standby is just not of this world and certainly not for a fairly expensive meter, mind you there are lcr meters at half the price doing the same thing as i learned from a friend who bought a different one, and that one doesnt leak batteries completely dead within 1 week, its just ridiculous and something is clearly not right with this meter however according to BK precision there is nothing wrong with it and the standby current draw over 20 times more then specified, these people are jokers and just do not want the hassle of an european guy far far away, thats american customer service for you all out.
"For that you need different meter"
No, just take the battery out or use the power adapter if the meter is not used every week.
@@EnigmaVideos i am afraid you dont understand: there is something wrong with this meter, the standby current draw is specified in the specifications at 11 micro amp, my meter does now 873 micro amp, so 0,9 milliamp
Thats 80 EIGHTY times more then specified (!!!), the standby draw is just ridiculous and there is obviously something broken in this meter from day1.
At that rate the fully charged battery lasts just a few days before it is COMPLETELY DEAD.
there is something in the power circuit leaking, i suspect one of the mosfets but as bk doesnt want to repair and also doesnt want me to have a schematic there is little i can do besides one of these days drill a hole in the case and fit a mechanical switch or just toss it on ebay one of these days and get rid of it and never buy BK PRECISION again.
Taking out the batteries every time after use is a stupid solution, did i tell you i paid over €500 for this piece of junk?
I may use this meter repairing a radio or tranceiver for a few weeks but then if i dont have that particular type of work it may be in the closet for a weeks, on of these days i will find it with leaking batteries inside and i can through it away, just like happens with all equipment that eats batteries in standby/off.
I will make another video soon about this piece of junk and it will remain on youtube until bk solves the problem, if not it will be here forever, its there loss not mine, i will get rid of it but the vid will stay.
They have my email, they just have to give me a message telling me where to drop it of for repair.
@@robber576 I think the real LCR meters are the benchtop ones that cost a lot of money. So yes, this one called 880 is naturally not the best model out there. LCR meters are mostly made for manufacturers that have the money to pay for a benchtop model.
@@EnigmaVideos i have no problem with how the meter performs when it works nor do i have a problem with the current consumption when it works, when it works it is mostly al fine and the small problems like no setting for the backlight or the missing "zero out/rel" option is not a big problem, al meters have little things like that and you mostly just have to get used to it, no problem.
I like the accuracy of this meter, it can measure really small caps and inductors and quite accurate.
There is just something wrong with my meter and american customer service of BK precision is awfull.
If i had a schematic i could swap some parts and probably repair it myself but as the oarts have no meaningfull numbers on them i do not know what the parts are and so cannot replace them.