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JTech Labs
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Добавлен 9 янв 2021
Jim shares his tech journey
Unbox and Review of Nasedal 268B Clamp Meter
This Nasedal 268B Clamp Meter can measure both AC and DC current. In this video I run through an evaluation of the majority of the features in the clamp meter. This meter is also sold under the WinApex brand in some parts of the world.
Просмотров: 129
Видео
ATORCH DL24 / DL24P Power Delivery Power Supply Testing
Просмотров 2252 месяца назад
This is the sixth video in a series on the ATORCH DL24 / DL24P electronic load and capacity tester. The DL24 can be used to test power supplies. In this instalment I test a pair of power delivery (PD) power supplies to show how to test them (trigger required), what happens when we go past their designed operating parameters and the difference between a high quality name brand PSU and a budget P...
ATORCH DL24 / DL24P Basic Power Supply Testing
Просмотров 1282 месяца назад
This is the fifth video in a series on the ATORCH DL24 / DL24P electronic load and capacity tester. The DL24 can be used to test power supplies. In this instalment I test a few power supplies to show how to test them and what happens when we go past their designed operating parameters.
ATORCH DL24 / DL24P Operating Modes
Просмотров 3012 месяца назад
This is the fourth video in a series on the ATORCH DL24 / DL24P electronic load and capacity tester. While most testing is done using a constant current load, this device also has constant resistance, constant power and constant voltage modes. In this video I show how to make use of these modes.
ATORCH DLP24P comparison to DL24
Просмотров 2253 месяца назад
ATORCH makes a DL24P Electronic Load and Capacity Tester as a variant of the more basic DL24. The DL24P can handle a slightly higher load than the DL24. Best of all the DL24P has an awesome RGB heat sink fan.
ATORCH DL24 Configuration and Calibration
Просмотров 8673 месяца назад
The DL 24 from ATORCH is a feature packed electronic load and capacity tester for hobbyists. In this video on review the configuration and more importantly calibration features of the unit and show how to calibrate voltage and current. This is the second video dealing with the DL24. The first reviews basic functionality.
ATORCH DL24 Electronic Load / Capacity Tester Unboxing and Usage
Просмотров 1,9 тыс.3 месяца назад
There are some very nice and inexpensive load and capacity testing devices available out of China. These units are packed with features and very capable for hobbyist. The instruction manual may be a little on the light side though. A second video covers the configuration and calibration in detail. ruclips.net/video/RiDcJdeYmys/видео.html
Unboxing and Review of FNIRSI DMT-99 - Part 2 Advanced Features
Просмотров 4394 месяца назад
FNIRSI has brought out this DMT-99 multimeter that has most of the basic features that you would expect to find in a multimeter. It also has several advanced features typically found in much more expensive units. Part 1 covers the basic features. Part 2 covers the advanced features.
Unboxing and Review of FNIRSI DMT-99 - Part 1 Basic Features
Просмотров 4394 месяца назад
FNIRSI has brought out this DMT-99 multimeter that has most of the basic features that you would expect to find in a multimeter. It also has several advanced features typically found in much more expensive units. Part 1 covers the basic features. Part 2 covers the advanced features.
Neoteck TS02 Pen Type Multimeter - Auto Mode
Просмотров 2534 месяца назад
In my earlier review of the Neoteck TS02 I neglected to show the Auto mode. This complementary video covers key aspects of Auto mode along with a conclusion. Part 1 - ruclips.net/video/rhkadn3e7z4/видео.html
Rehabilitation of Headphone Rot
Просмотров 144 месяца назад
I have a pair of wonderful Sony MDR-V6 headphones. However, the ear cushions are in rough shape and the foam has turned into a gooey sticky mess. In this video I go through the process of cleaning them up and replacing the ear cushions.
Breadboard Power Module Usage instructions
Просмотров 594 месяца назад
Breadboard power modules are intended to make it easy to get standard 5V and 3.3V power for designing circuits for Arduino and and Raspberry Pi. The module comes with no documentation. This video shows you how to make use of the module and even covers a gotcha that even advanced users may not know about.
Proster PM6308 Gas Leak Detector
Просмотров 504 месяца назад
The Proster PM6308 Gas Leak Detector is a really simple device. Gas leaks can be hard to detect and most combustible gases are odourless. It actually works quite well. In this short review I show it in action.
Victor FS2202 / Aneng SZ02 Intelligent Digital Multimeter
Просмотров 1,7 тыс.4 месяца назад
Automatic (aka Intelligent) Digital Multimeters like the Victor FS2202 / Aneng SZ02 are appearing all over the place. There are a few different designs that are marketed under a variety of brand names. In this video I put one of these models through its paces and compare it against a Fluke 117 Multimeter.
Kaiweets KEH01Mini Heat Gun
Просмотров 435 месяцев назад
In this video we will have a quick look at the performance of the Kaiweets KEH01 Mini Heat Gun. This is a great tool for heat shrink tubing and alot better than using a cigarette lighter.
Unboxing and review of Neoteck TS20B Pen Type Multimeter
Просмотров 1,6 тыс.5 месяцев назад
Unboxing and review of Neoteck TS20B Pen Type Multimeter
Unboxing and Review of HoldPeak HP-881E Digital Lux Meter
Просмотров 3649 месяцев назад
Unboxing and Review of HoldPeak HP-881E Digital Lux Meter
How To replace an illuminated rocker switch
Просмотров 4399 месяцев назад
How To replace an illuminated rocker switch
Goyerrnes GR-39M (aka BT Meter BT-39M aka Holdpeak HP-39M) unboxing, teardown and review
Просмотров 689 месяцев назад
Goyerrnes GR-39M (aka BT Meter BT-39M aka Holdpeak HP-39M) unboxing, teardown and review
DT-830D Digital Multimeter aka the world's cheapest digital multimeter
Просмотров 3,7 тыс.Год назад
DT-830D Digital Multimeter aka the world's cheapest digital multimeter
How To Determine Capacity of a Rechargeable Battery Pack
Просмотров 67Год назад
How To Determine Capacity of a Rechargeable Battery Pack
Dr.Meter LX1330B Unboxing and Review
Просмотров 1,1 тыс.Год назад
Dr.Meter LX1330B Unboxing and Review
Unboxing and Review of GooLoo S4 Smart Battery Charger
Просмотров 1,2 тыс.Год назад
Unboxing and Review of GooLoo S4 Smart Battery Charger
Review and Teardown MotoMaster Heavy-Duty Tripod 2200 Lumens 3-Blade Work Light Model No: 037-6389-4
Просмотров 1,4 тыс.Год назад
Review and Teardown MotoMaster Heavy-Duty Tripod 2200 Lumens 3-Blade Work Light Model No: 037-6389-4
How To Use an ESR Meter to Test Capacitors
Просмотров 22 тыс.2 года назад
How To Use an ESR Meter to Test Capacitors
Unboxing and Initial Test MESR-100 ESR Meter
Просмотров 4152 года назад
Unboxing and Initial Test MESR-100 ESR Meter
Unboxing and Review of the Atten ST-862D Hot Air SMD Rework Station
Просмотров 2 тыс.2 года назад
Unboxing and Review of the Atten ST-862D Hot Air SMD Rework Station
Unboxing and Review of Uni-T UT61E Digital Multimeter
Просмотров 1972 года назад
Unboxing and Review of Uni-T UT61E Digital Multimeter
Excellent review.
so when you have bought one, you need to buy a 2nd to calibrate the first, but the 2nd one wont be calibrated so you need to buy a third, but the third wont be calibrated.... Maybe we just need to use the calibrate out socket to a 12v 55w car headlight bulb in series with a multimeter set to amps, then adjust input voltage to change brightness of bulb/meter reading for 3amps and press the set button..
You can absolutely use any known 3A load
I have that one on the right @ 16:48. Do you have a video on that one? I bought it to test a 100 amp battery but it just came today so have not used it yet. The one I got from Amazon is identical but with the brand name of "MakerHawk"
I haven't done a vid for it yet, but I will prioritize it I first saw it on ProjectFarm. One of the key differences is that it allows for very fine control over the load with a simpler control structure of the knobs.
Aren't those USB plugs also used to test USB batteries (like a 10,000 mAh battery for example)
Yes, they are just connectors for any device to make it easier to connect to the test points.
I have 3 variations of these testers: DL24, DL24P and DL24MP (compact, with the display on top of the fan). All 3 exhibit the same problem with the USB C connector on the little adapter board. The tester detects the source voltage (and the little blue LED on the board lights up) only in one direction of the USB C connector. If I flip the connector it no longer detects the voltage. Same thing happens if I turn the cable around, with the other end plugged into the adapter board. If I flip the connector plugged into the source there is no problem. Since this happens with all 3 adapter boards and several cables, I believe they did not wire the USB C connector to the little board fully.
Thanks i get the point but for dl24ew there is no dedicated port to plug the load. There is d, s etc. What are we gonna do?
Unfortunately, I don't have a DL24EW. I had a look at some product listings and they did not seem to have the same calibration option.
@@jtechlabs6037 it is d for + and s for -
Good explanation. Keep adding contents. Love from India
Have you tried connecting regular long test leads from a multimeter to the ESR meter?
I am planning to make a video showing the impact of different types of leads.
Why do have a jacket on when filming?
It's cold where I do the filming
I guess this is a wrong power supply. It has the fan in the wrong place, and this will cause very poor heat dissipation. Additionally I think you have a 48v PS, while for this model we need a 68. It might work with 48v, but the maximum tension on the output will be at best 48v and not 60v.
Yes the maximum voltage will be 1 volt below the voltage of the supply. This was planned as I don't need the higher voltage. I preferred to get the Mean Well supply rather than the one that Riden supplies in their kit. Mean Well has a very good reputation.
suitable for simple home use.
The non contact sensor works, you just need to get close to a socket and it will beep only in the live side of the socket.
Good, looking forward for more videos
USB port is for charging only? Is posible todo data logging ? Thanks in Advance.
Can you check if it uses different mosfet and diod?
Nice video
No need for those thick wires for the sense wires as almost no current runs through them. Nothing theoretical about precision, the voltage measured by 4 wires takes into account the voltage drop in the wires making it a much more precise instrument. Standard in any pro power supply and any other equipment where precise measurements are required as voltage otherwise will depend on the current drawn, even risking overcharging battery/cells if wires are way to thin or faulty.
Get with zke tech
Thanks for this. It was a very helpful introduction to this meter. I have one but haven't really used it and I appreciate your time in making this video.
Thank you. It's nice to know that these has been helpful.
Hello sir can you use this tester to discharge a single cell lifepo4 3.2v 280Ah? Thank you
It kind of depends. The typical discharge current for this sort of cell is 140A (448 Watts). The DL24 has a maximum current setting of 30A (96 Watts). If you wanted to do a capacity test at the 30A level that would work as 96 Watts is well within the power handling capacity of the unit. However, if you wanted to do a test at the typical 140A level you would not be able to.
Hi, have you ever meet UREG error message at your Atorch DL24? I staked into the problem with this message, as well, as my DL24 sensing 20 V input voltage, as "2.0V", not 20 Volts. Thank you in advance !
It could be that you triggered a voltage calibration. There are two options on the settings screen for voltage calibration, one for zero volts and one for 30 volts. For the zero volt calibration you need to disconnect all inputs and trigger the calibration for the 30V calibration you need to have a 30V reference voltage source and trigger the calibration. Let me know if you need more info.
@@jtechlabs6037 Thanks a lot for support, much appreciated ! I’ll try to recalibrate this device, it’s not so simple, due to partially Chinese menus, but anyhow, you show me the way to dig for solution. Have a nice day !
@@jtechlabs6037 Thank you a lot for information, I think, that you're totally right. I'll try to provide recalibration now, and will let you to know about the results. Thank you a lot for given support !
I just posted a video that shows how to calibrate the voltage and the current.
@@jtechlabs6037 Thank you very much for such support, it's really valuable kind of help, you 're very kind !
continuity testing will always be slow on "auto" mode on any multimeter :| thx for the video btw dont forget to update the firmware, cheers
Thanks for your feedback. I really wonder about the utility of auto mode. Only a small subset of properties can be measured and the response time is mostly poor. I feel that someone using a multimeter should know what they are trying to measure and the benefit of a quicker readout should outweigh not needing to preselect the mode. That said I have been surprised by the occasional good performance of auto on one or two multimeters.
The pigtails I got on mine are all wired backwards. Went back on Amazon's site....and it even shows them wired backwards in one of the pics. When plugged together how they have it wired, it goes black to red. So much for fool proof.
Skip first 5 minutes. Watch at 1.5x speed.
You have poor knowledge about measurements and that shows through your lack of confidence. Measuring the current in parallel with the load is a bad joke. Didn't you see that the luminosity of the LED changed?? Pathetic.
With the AC voltage readings, the Fluke is True RMS. The cheap multimeter is not.
Thank you for pointing that out.
I just got one of these meters recently, the Aneng SZ02. I have better meters, a Fluke, UNI-T. I keep this meter in my smal electircal tool kit, it's perfectly fine for that. I take it out of "Auto" mode for most testing, the Auti mode is nice, but like you demonstrated there is a delay lag ezpecially with continuity.
That's a pretty clunky design. Wouldn't buy it ever
Falto de todas la pruebas haber dejado en modo automático y realizar la medidas para ver si detecta el componente y da el valor correcto y medir en automático en un circuito mixto de resistencia condensador y diodo si detecta el componente en modo automático correctamente 😅
I apologize that I neglected to show the automatic features. I have done a supplementary review that looks at auto mode.
I don't usually use a breadboard power supply, I usually keep an arduino nano, and Rpi on my boards for power if its nothing thats going to blow up. Good Video though!
Just purchased this, awaiting arrival. Thanks for the quick rundown. Many on Amazon get stopped in their tracks just trying to figure out how to open the battery compartment. Your video has been helpful.
you growing weed ?
Great tutorial. You can also test the resistance or microhenries of the inductors with the esr meter. The reactance formula is 2𝛑FL. That would be 2 x 3.14 x frequency of esr meter which is 100 kHz x 100 (uH) Just plug it in to get the reading. R=0.628 X L(uH) L(uH)=R(ohms)/0.628
Thanks for sharing that
I've owned and used this work light for about 14 months now. I take care of my own auto repairs, welding work, woodworking, and mechanical repair services for my family, friends, and neighbours. So this work light has been used very often, and has performed very well. Some work has taken over 5 hours, and the light hasn't had any problem doing that on one charge. More than enough light, and never had need to run it at maximum illumination. I got it on a great sale deal from CTC for under $60.00 CAD + tax. I don't use the tripod much, as it's normally better to hang it, or prop it into place when working, but the tripod works fine as well. I just like having the light closer to where I'm working, rather than using it as a flood light for a larger area. Highly recommended
=)))) learning curve... you ned flux applied to desolder tho!!!
"They clearly don't have screw drivers" 😂 I appreciate the snark 👍
I appreciate the breakdown on the peak setting. I'll be buying this guy for a college class and it'll definitely be helpful to know that little quirk about it. Seems like if I was using it to measure light and then turned the meter away from the light or towards my body to block the light that it would lock in that peak measurement, at least in theory. I'll mess around with it and test that out. Thanks a bunch for a simple straightforward review.
I think that TSOP 16 chip to the left of the front PCB when looking at it from the back is a class D amplifier chip. I'd be interested to know it's part number. The rear PCB appears to be just PSU. The inbuilt PSU supplies the front PCB with about 15v. Paired to a pair of reasonably sensitive speakers, it can fill a room with music. It won't get to deafening volumes.
I'm guessing the chip visible is a CS8623E. There are likely two on the board, and the data sheet suggests each gives an equivalent output of 30w. The data sheet appears to be only in Chinese.
never use this product. it is and empty plate missing loads of components and dangerous.
Yeah , what compnent is it missing ?
I tried the ebay link and nothing. Do you have the model number of the bulb ?
Try this www.ebay.ca/itm/124532505922?hash=item1cfeb73d42:g:6t8AAOSwZGRgBMIq&amdata=enc%3AAQAIAAAAwD6lWb4oYfSxW7L1VOGpKEa6C%2BlGzhOZiYMpYBKB3XatQtyAS0PEHU%2BMhMnZ9FQs1Akv0RuZUEvmzVw97kr4GAp3oschsRw2udJsoYg4Mt0HGNbu6OFaNERT0ry4oBTMsltHd5U1a18lpjEjUf4VBEVhp77LgLLQhrK77bqrAfbok4hQNHcvPdAHXzxXZjU8L5U44Yrj1eEXoWwF%2Bcp0Rqv4gZYjMW9oeHf6s7tO0xhcqucqk52KW0NsL8%2FjHq6pUA%3D%3D%7Ctkp%3ABk9SR-CykoaDYw
I have one of these meters correct e if I am wrong but I am sure you can use the test leads anyway round. Thanks for your patience must be difficult try to form using them leads even the sockets are a bit loose on plugs.
You are correct
25:30 don't push..risk of lifting pads, just heat up enough...also, tape of surrounding area to protect from blowing off....😉
1:07 Always "re-zero"....Period. And why not sacrifice a pair of testleads to make a "pointy" pair of short testleads for this
Funnily enough..... Throughout all the years.....I think the only thing I've ever replaced a lighted rocker switch on.... are several really nice "isobar" power strips/surge protectors. I found nearly a dozen over the years, and they are still made to this day.....with thick nice all metal design, very well thought out circuitry inside, and With big beefy pcb/ through hole components.... And a massively beefy cord. Some of them I got in trades, even found a few at scrap yards with the cords cut off. The rocker switch is all they ever needed. And Maybe once I replaced a blown varistor inside. About a hundred bucks a pop. But worth every penny. And perfect for the electronics lab!
Good tip on how to create probe extension for the clips.
Thanks for the review ...I would do the same . Buy a better quality / higher rated battery pack .
Found this helpful couldn’t find where to put the battery lol
Are both measuring ranges up to 800c or onle the thermo couple?
Hello Can it be calibrated at home if it shows a wrong temperature?
I have never found a way to calibrate
As I am now 78 Now I have slight tremor I have made up really sharp probes insulated right to the points so no risk of slippage or short risks! Fraser.
Should you have say a 100 R resistor to short the capacitor because back EMF could damage sensitive components connected to the capacitor? Shorting large capacitors out of circuit apparently can damage large electrolyte types as well I have read?
I like your videos