Dear SDG Electronics, thank you for making and posting this very informative video. (I love it that you showed the wave-forms & cap values calculations using your oscilloscope). Thank you.
Hi, nice video! I also have the ESR70. Another nice feature to mention is the audio tone feedback of the unit that I have not seen in other ESR units. For example besides the test start and end beeps, the unit will sound 1 of 3 different result tones: *Ping-Ping; for ESR under 1 ohm (generally good depending on DUT values) *Ping; for ESR < 5 ohms *Beep-barp; for ESR > 40 ohms (way bad) This is a nice feature when probing around a board since the unit restarts tests when new caps are connected and not having to look at the display.
Capacitance rising (much) is to be expected on faulty electrolytic caps. Capacitance increases when the physical distance between plates decreases as a result of the electrolyte drying out. The adverse effect of drying out is increased ESR. Obviously, voltage rating goes south along with aging, so breakthrough is to be expected. Eventually, rising internal temperature leads to violent destruction of the cap under load. The ESR meter reading high capacitance on a bad cap is perfectly normal.
nice work, I'm just a novice trying to pick up what I can on electronics from you tube, I purchased this exact model several years ago but every time I use it I get the same ESR reading, > 40,. Any ideas what causes this obvious malfunction?
I'd like to see a little more cable inside the case, I know that would increase the parasitic capacitance but those leads and their solder points look like a potential failure point to me
I’ve had to replace the leads on my ESR70 twice. Not from a failure point within the case where it attaches. Due to all of the flexing and use the wire within the cable gets a break in it, usually between the halfway point and the alligator clips. Slowly I’ll notice that capacitors I measure start getting higher and higher ESR measurements, where brand new Panasonic FC are measuring 15 ohms, 20 ohms, etc. Swap the cables and it’s back to measuring correctly. Pulled the alligator clips and measured directly at the banana leads, still faulty. Would be nice to find a cheaper replacement, $30 USD for a 6” length of cable with two clips is highway robbery.
Have had an ESR60 for some years, the ESR accuracy seems to be closer to ±0.1Ω than the specified ±0.02Ω. And that is with performing probe compensation after every few measurements. A bit disappointing to be honest.
Interestingly enough Peak sells a SMD tweezer for chip capacitors. Is it not wise to measure chip capacitors with the Peak ESR 70+ as many are ceramic? What's the reasoning behind the LCR vs ESR for ceramic? Thank you, and excellent video.
Excellent review of the device. Although it is very easy to use and the readings it gives seem to be correct, the design is too simple and cheap; internal battery, direct output from the simple test leads, no input protection, no shielding. It looks more like a chinese gadget, if you don't look at the exorbitant price...
Build a battery resistance meter, I can't seem to make this reliable at all www.electronicspoint.com/threads/peakelec-esr70-measuring-battery-internal-resistance.276635/
Very nice meter. The problem for the price this is sold at is the alligator clips are not brass plated gold, but plain cheap china crap alligator clips plated gold. Other then that nice meter. Fact that russians use this to calibrate their competitor esr-micro v4 brand meters tell a allot.
@@2tallB The probes are awful. You will have to modify it will legitimate needle point probes. Connecting them to the meter itself requires some modification and it's a pain. The auto shut off function cannot be overridden. The size of it is a pain to deal with on a workbench. The meter is easy to read and is fairly accurate. Probably good for a hobbyist or beginner but only if the probes are replaced. It is nice that it will give a capacitance reading which can help a lot when diagnosing. It's important to note that the caps have to be out of circuit for rough capacitance readings. There are many ESR meters available with the ability to test in circuit made by BK Precision ($$$$). The old (original) version of the Bob Parker meter is excellent but not sure it's easily found anymore.
Thanks, I was curious. The lack of probes is a drag, I was surprised they don’t include adaptors with probes instead of the clips. But I already have adaptors like that. The battery looks like hassle too. Your other points I’m aware of - I have a DCA55 which doesn’t bother me, I put it on a cell phone stand that adjusts the angle and keeps the strain off the wires. Personally I think it looks like a nice unit for its price point. For a pro tech or EE, which I’m not, you should get the best tools you can afford. (It’s a write-off anyway!)
Extremely well and thoroughly explained in basic terms without "talking down" to you. Excellent, told me everything I wanted to know. Thank-you!
Dear SDG Electronics, thank you for making and posting this very informative video. (I love it that you showed the wave-forms & cap values calculations using your oscilloscope). Thank you.
Hi, nice video! I also have the ESR70. Another nice feature to mention is the audio tone feedback of the unit that I have not seen in other ESR units. For example besides the test start and end beeps, the unit will sound 1 of 3 different result tones:
*Ping-Ping; for ESR under 1 ohm (generally good depending on DUT values)
*Ping; for ESR < 5 ohms
*Beep-barp; for ESR > 40 ohms (way bad)
This is a nice feature when probing around a board since the unit restarts tests when new caps are connected and not having to look at the display.
Very nice video my friend, that's very welcome. A complete vid about ESR. You have got a new subscriber.... cheers!!!
An excellent video. Informative and very well narrated.
nice job, thanks for sharing! just picked up one of these :)
I think it uses three different currents for the Capacitance measurement. Nice video though enjoyed it so much. Thanks
Capacitance rising (much) is to be expected on faulty electrolytic caps. Capacitance increases when the physical distance between plates decreases as a result of the electrolyte drying out. The adverse effect of drying out is increased ESR. Obviously, voltage rating goes south along with aging, so breakthrough is to be expected. Eventually, rising internal temperature leads to violent destruction of the cap under load. The ESR meter reading high capacitance on a bad cap is perfectly normal.
nice work, I'm just a novice trying to pick up what I can on electronics from you tube, I purchased this exact model several years ago but every time I use it I get the same ESR reading, > 40,. Any ideas what causes this obvious malfunction?
Great video. Thanks.
I'd like to see a little more cable inside the case, I know that would increase the parasitic capacitance but those leads and their solder points look like a potential failure point to me
Definitely - I missed it at the time, but there is very little in the way of strain relief. A slightly better cord grip would help immensely.
@@sdgelectronics And, they got the wire exiting the unit a the bottom, where it'l be flexed all the time!!!
I’ve had to replace the leads on my ESR70 twice. Not from a failure point within the case where it attaches. Due to all of the flexing and use the wire within the cable gets a break in it, usually between the halfway point and the alligator clips. Slowly I’ll notice that capacitors I measure start getting higher and higher ESR measurements, where brand new Panasonic FC are measuring 15 ohms, 20 ohms, etc. Swap the cables and it’s back to measuring correctly. Pulled the alligator clips and measured directly at the banana leads, still faulty. Would be nice to find a cheaper replacement, $30 USD for a 6” length of cable with two clips is highway robbery.
Can’t you built new wires with quality clips yourself?
Very nice review! ;-)
Thanks!
Have had an ESR60 for some years, the ESR accuracy seems to be closer to ±0.1Ω than the specified ±0.02Ω. And that is with performing probe compensation after every few measurements. A bit disappointing to be honest.
Nice review.
You teacher...where r u....keep on
Can you use it to measure disc capacitors as well?
No, you're better off using an LCR meter for ceramic capacitors.
Interestingly enough Peak sells a SMD tweezer for chip capacitors. Is it not wise to measure chip capacitors with the Peak ESR 70+ as many are ceramic? What's the reasoning behind the LCR vs ESR for ceramic? Thank you, and excellent video.
Can you repeat measuring on boards
Was fast.and you point 👉 it was way less so it can't read on board
thanks for the video :)
asuspower Thanks for watching!
Excellent review of the device. Although it is very easy to use and the readings it gives seem to be correct, the design is too simple and cheap; internal battery, direct output from the simple test leads, no input protection, no shielding. It looks more like a chinese gadget, if you don't look at the exorbitant price...
Build a battery resistance meter, I can't seem to make this reliable at all
www.electronicspoint.com/threads/peakelec-esr70-measuring-battery-internal-resistance.276635/
Very nice meter. The problem for the price this is sold at is the alligator clips are not brass plated gold, but plain cheap china crap alligator clips plated gold. Other then that nice meter.
Fact that russians use this to calibrate their competitor esr-micro v4 brand meters tell a allot.
I hate this fucking meter. Save your money and buy a good LCR meter.
Thanks for the heads up,,can you recommend one please?
Well ok. So why do you hate it and, agreed, what LCR meter do you like?
@@2tallB
The probes are awful. You will have to modify it will legitimate needle point probes. Connecting them to the meter itself requires some modification and it's a pain.
The auto shut off function cannot be overridden.
The size of it is a pain to deal with on a workbench.
The meter is easy to read and is fairly accurate. Probably good for a hobbyist or beginner but only if the probes are replaced.
It is nice that it will give a capacitance reading which can help a lot when diagnosing. It's important to note that the caps have to be out of circuit for rough capacitance readings.
There are many ESR meters available with the ability to test in circuit made by BK Precision ($$$$). The old (original) version of the Bob Parker meter is excellent but not sure it's easily found anymore.
Thanks, I was curious. The lack of probes is a drag, I was surprised they don’t include adaptors with probes instead of the clips. But I already have adaptors like that. The battery looks like hassle too. Your other points I’m aware of - I have a DCA55 which doesn’t bother me, I put it on a cell phone stand that adjusts the angle and keeps the strain off the wires. Personally I think it looks like a nice unit for its price point. For a pro tech or EE, which I’m not, you should get the best tools you can afford. (It’s a write-off anyway!)
If you look at EVB B2ESR, I think that’s different from the standard Blue?