I see that you never tested it while powering it with a separate power source . That is what the extra connector on the side is for. Maybe redo this test and this time power the unit with a separate power source to see if the results are different. I am interested to see if it would make a difference. Great video thanks for the review so far.
Not the best way to do it. But yes it is justified in a way. We're testing a meter that only costs $10-20. Someone that is interested in buying something like this isn't going to need it to be any more precise than the factory calibration of the DMMs.
I need to get some DC buck converters and led tapes. what are the specs on the LEDs I need to run 12 volt led tapes from a 7 cell bank of liion. so there could possibly be 30 volts. I'm just wondering if the small buck converters sold on amazon. good for about 3 a. will work. and I'm thinking about the rc amp meter for total discharge. great ol video. I was curious about the 100a claim. I'd say 60 contentious amps is all it needs. is that 8 or 10 gauge cable used in it?
The cable used on those things is 10 gauge at max might actually be 12. I wouldn't trust the 100 amp claim either maybe for a couple of seconds. LED tape depends entirely on the strip you buy. The 5050 size pulls something like 3-5 amps per strip so I would go for a bit of a higher rated converter. I don't think that 8-10 amp converters are really that expensive.
If there are pots inside of it you would have to desolder and remove the screen to gain access to them. I haven't tested it but you probably are right about it being more accurate with more current.
Finally figured out that this unit can be used to read 12V battery charger output volts and amps. Source side connects to the charger leads and the load side connects to the battery you want to charge. For this purpose, I'm fine with ballpark readings.
I have 5 DMM's and they all read almost the same. I don't think that any of my meters are out of spec, and the odds of all of them being out of spec by exactly the same amount seem quite low.
Ah, a wild gear snob. I really need to put those meters in all of my video. Everyone gets a kick out of them in one way or another. It's a rebranded Brymen meter. They make very respectable meters. Also, I think the word your looking for is keysight now lol.
The shunt in the watt meter is dropping some voltage. You should be measuring at the input not the output.
Only true under load. but it was already off with no load...
I didn't see your documentation that YOUR test equipment was ISO certified.
I see that you never tested it while powering it with a separate power source . That is what the extra connector on the side is for. Maybe redo this test and this time power the unit with a separate power source to see if the results are different. I am interested to see if it would make a difference. Great video thanks for the review so far.
But is the reliance on the DMMs justified? Where is the traceable calibration for any of them?
Yep. A calibrated Voltage source would be required for this to mean anything definitive.
Not the best way to do it. But yes it is justified in a way. We're testing a meter that only costs $10-20. Someone that is interested in buying something like this isn't going to need it to be any more precise than the factory calibration of the DMMs.
Is it only measure the Ampere-Load? Not Battery Capacity?
What's the 3 pin for on the side
temperature sensor
Was your equipment calibrated?
th-cam.com/video/9dHgWrUlqCk/w-d-xo.html
100a is max peak and cont is max 50. This is as per manual. Take both still with a grain of salt.
Can that be hook to a wind turbine
Yes if it is under the 50a 60v continuous its 100a peak
It would fly right off
what measuring instrument do you think is best for Wh?
Honestly, if you want something cheap these things are pretty good.
@@Eman2000 if want to get precision and accuracy on instrument for Wh?
I wonder how accurate are your meters, I would use better known brand for accuracy tests.
I need to get some DC buck converters and led tapes. what are the specs on the LEDs I need to run 12 volt led tapes from a 7 cell bank of liion. so there could possibly be 30 volts. I'm just wondering if the small buck converters sold on amazon. good for about 3 a. will work. and I'm thinking about the rc amp meter for total discharge. great ol video. I was curious about the 100a claim. I'd say 60 contentious amps is all it needs. is that 8 or 10 gauge cable used in it?
The cable used on those things is 10 gauge at max might actually be 12. I wouldn't trust the 100 amp claim either maybe for a couple of seconds. LED tape depends entirely on the strip you buy. The 5050 size pulls something like 3-5 amps per strip so I would go for a bit of a higher rated converter. I don't think that 8-10 amp converters are really that expensive.
Any calibration pots inside it? I think the current range may be more accurate when there is 10+ amps going through it.
If there are pots inside of it you would have to desolder and remove the screen to gain access to them. I haven't tested it but you probably are right about it being more accurate with more current.
So it don't tell how many watts amps that your solar panels are putting out
Yea it does! Works well for exactly that!
Finally figured out that this unit can be used to read 12V battery charger output volts and amps. Source side connects to the charger leads and the load side connects to the battery you want to charge. For this purpose, I'm fine with ballpark readings.
Can i measure rms watts output from my car audio amlifier ?
RMS(root mean square) is an AC measurement and this seems to be a DC METER
How do you know the integrity of your DVM ?
I have 5 DMM's and they all read almost the same. I don't think that any of my meters are out of spec, and the odds of all of them being out of spec by exactly the same amount seem quite low.
For an rc system it shouldn't matter that much, thanks for the video
I agree, thanks for the comment
So did anyone find out which would be the best buy? A link would be helpful thanks everyone
I purchased one of these meters to use Capacity Testing 18650 batteries. Good Enough for me.
Its people like you that China loves
Not really. I can't afford to buy what I need American. When china is gone then maybe you will lower your prices. Communistic Minimum Wages did that.
Great job
Only rated 50Amp continuous.
It would still melt at 50 Amps, there's no way it would take that continuous.
Max 20A continous
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eevblog multimeter lul, agilent or fluke please...
Ah, a wild gear snob. I really need to put those meters in all of my video. Everyone gets a kick out of them in one way or another. It's a rebranded Brymen meter. They make very respectable meters. Also, I think the word your looking for is keysight now lol.
Can you say
life span is short on these meters lucky if you get a month out of them