I am looking to buy an ESR meter that will mainly be used for testing caps on monitors and their power supply boards. I would be doing this as a hobby. What would be a good ESR meter to purchase, and what specifications should I look for on one. Cost is an issue. Cheaper = better for now.
Best ESR meter/What to look for
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Re: Best ESR meter/What to look for
How about reading most messages in this forum section, and return to this thread with more specific questions later on? -
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Re: Best ESR meter/What to look for
Thank you. However, that one is way out of my budget. So far I am looking at an ESR Micro w/out a case, or the one linked above that I am suspicious about.Comment
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Re: Best ESR meter/What to look for
That is a good general purpose multimeter for voltage, current, resistance, etc., but it will not measure capacitor ESR (equivalent series resistance).Comment
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Re: Best ESR meter/What to look for
http://www.ebay.com/itm/321203527074...84.m1439.l2649 thats mine
doesn't measure esr if it is low, thus most caps can't be measured for esr.
Capacitance and inductance is OKComment
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Re: Best ESR meter/What to look for
i have one similar to this also cheapo chinese meter.
http://www.ebay.com/itm/321203527074...84.m1439.l2649 thats mine
doesn't measure esr if it is low, thus most caps can't be measured for esr.
Capacitance and inductance is OKComment
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Re: Best ESR meter/What to look for
In simple English... how old are you?Comment
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Re: Best ESR meter/What to look for
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Re: Best ESR meter/What to look for
Unfortunately I haven't had a job in the electronics industry since then so I'm a little rusty.
Thank you for being able to read statements within context.
For the more dense and less fluent in the English language: I meant it seems a bit ridiculous that with the sensitivity of equipment being designed and manufactured, and with seemingly minute changes in components having the possibility of making a huge difference in the operational stability of various circuits, that a term like "Low ESR" is so often used and yet never defined. Of course I know what ESR is. But, High ESR and Low ESR are pretty ambiguous terms.
It has been mentioned that many manufacturers define the terms so differently, that one MFG's high ESR cap can be another MFG's low ESR cap.
I somewhat assumed (incorrectly?) that a web forum which specializes in capacitor replacement -- aptly named Badcaps, no less -- would have a more solid definition hashed out if for no other reason than to facilitate effective communication across the forum.Last edited by Pinhead; 11-19-2013, 09:02 AM.Comment
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Re: Best ESR meter/What to look for
These discussions have been a part of this forum from the onset.
Trying to get > 60 different cap manufacturers to agree on what is "Low ESR" is nigh impossible. There is no industry wide standard. Mix all of it together and throw in some marketing and you'll have a better chance of getting a bill through Congress.
Low ESR -generally- means one that is to be used in SMPS and motherboard filtering. It is a term used to differentiate them from the "general purpose" caps.
There is no hard/firm definition and it is based upon the final purposing of the cap. A low ESR cap for motherboards is typically in the 5 mOhm (0.005Ī©) or less category. In SMPS, it would be in the 60 mOhm (0.060Ī©) or less.
That being said, I use the Blue ESR meter, built from the kit.
There is another one that some here use, but I don't know the name. Rather small and seemed of good construction. There was also one from a Russian fellow (IIRC) that some said was decent. A perusal of the forums for ESR meter suggestions will show all of them
T
Found the other 2: Atlas ESR70 and ESR Micro by RusMike
Check this too. He does a lot of equipment reviews: http://www.youtube.com/watch?v=LZ49GCnf0V4
.Last edited by Toasty; 11-19-2013, 09:39 AM.veritas odium paritComment
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Re: Best ESR meter/What to look for
When you design the circuit, the ESR become part of the design requirement.
See post 8 for example:
https://www.badcaps.net/forum/showth...999#post300999
Too low or too high can be problem also.Last edited by budm; 11-19-2013, 10:45 AM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Best ESR meter/What to look for
a) I'm 30. Graduated with a BS in Electronics Engineering Technology at DeVRY University almost a decade ago.Unfortunately I haven't had a job in the electronics industry since then so I'm a little rusty.
b)Thank you for being able to read statements within context.
c) But, High ESR and Low ESR are pretty ambiguous terms.
b) I will never compete with you in poetry, no offense is taken all good in my camp.
c) Chemistry and new manufacturing techniques born the "Low ESR cap" which other than it practical value in pulsing power supply, the practical problem is their proper identification and test regarding failure.
Practically as long their internal resistance is very low, in order to measure it you need one proper instrument with the proper resolution in digits.
Anything with a resolution of four digits is good enough ( 0.000 ) but this luxury it is offered by true LCR meters which come from respectable manufacturers, and they are capable to be tested regarding calibration.
When measuring such low Ohm values the accuracy of the meter is extremely important.
Low resolution meters is gadgets of the past, therefore are very cheap to build.Last edited by Kiriakos GR; 11-19-2013, 12:19 PM.Comment
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Re: Best ESR meter/What to look for
Those words are coming from the experts, I am just an electrician who follows the river flow and expand my knowledge.Comment
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Re: Best ESR meter/What to look for
While that may be true, I am just interested in why it is cheaper relative to the slightly more expensive models. Precision is not really my chief concern, and I only need enough precision to determine whether a cap is good/bad. Should the two meters give similar readings, I would purchase the cheaper option. Otherwise, I would opt for a more expensive/better meter.Comment
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Re: Best ESR meter/What to look for
While that may be true, I am just interested in why it is cheaper relative to the slightly more expensive models. Precision is not really my chief concern, and I only need enough precision to determine whether a cap is good/bad. Should the two meters give similar readings, I would purchase the cheaper option. Otherwise, I would opt for a more expensive/better meter.
You may wish to paint your home white just with milk, but if you are up to making repairs you will follow the needed technical principals, or you just toying around, and in this case your opinion it can not taken seriously.
Simple as that.Comment
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