did you find the scpi commands? looking at the software package right now, and notice a word doc. "ET54 series -programmable dc electronic load - SCPI agreement" (47 pages about SCPI protocols) so if you still missing it, say so and I will upload it. Btwwhen you refer to "non standard USB port".. its only the fact that its an USB-A male cable to a USB-A male cable, that you classify as non standard, as many testgear users USB-B females socket, and not a USB-A female socket?. I was thinking about moving the USB port to the front and exchanging that USB-A socket for a female TypeC 4pin socket, and was a little unsure now - when you referred to it as a non standard USB interface, and if there was some special pin-out in play and I would run into problems? its simply +, gnd, data+ and data- ..? thx for the best test and walkthrue of this easttester programmable electronic load, I have seen on RUclips, well done.
@@gamerpaddy I dont have any RS232 cables... all my testing gear uses USB..My scope, my 2x KOrad PSUs, My FY6900 DDS, my 3 spectrum tools. and this USB A female socket is as standard as it gets in 2022.. as I would guess the most common cable people have, are in fact a "USB-A male to a TypeC male cable", as it comes packed with pretty much all now a days. so just take that USB-A into the load and the TypeC into your laptop or PC where pretty much all compute gear now a days have USB C. I would move USB socket to the front and then It would make sense to make it TypeC also as then its TypeC to TypeC. I gave you an offer, about uploading the whole scpi commands for the 54 series East Tester, as you expressed an interests into them, but it seems that offer went over your head, or maybe you don't need it anymore or already got them.? its an doc of 46 pages from east tester that are found in there software zip package.
Thank-you very much for taking the time to do this video. The user interface on this unit is not the most friendly. I was wondering how to get it out of Low mode so I could discharge at 40a and bam you covered it in your video. Thank-you. The manual was no help.
Thank you for this video. The dealer shipped me a unit (I'm in the U.S.) that was programmed in Chinese. Even the instructions were in Chinese. So I had no way of knowing how to reset it until I found your video. Thank you so much.
Thank you for the review and especially the tear down. I ordered the single channel model mainly for battery capacity testing. I plan to use with the software so I can document the capacity and the discharge curves.
Good review! I appreciate the teardown at the end. One thing I have found is that some of these electronic loads introduce noise into the system, but the scope trace looked clean... that issue with noise is what has kept me from gettin one of these low cost loads. But, I need to get one with battery and LED test modes... or program my Keithley SMU to do it, which would be a bit of work.
Hey, not an expert, just possible ideas I read regarding this: Common mode noise? Maybe use a differential probe or two channels on your scope. (there are some inexpensive chinesium diff. probes on Amazon that work alright) Mains related? Perhaps if you swap the switch-mode supply it comes with for a better quality one, should be simple to mod. Also mains related? Use an isolation transformer? Yeah I'm also looking for ways to mod these since they're pretty inexpensive.
The one thing that concerns me is the lack of an external voltage sense. I could measure the resistance of all my wires and correct the voltage values, but that is a pain. Is there any way to add an external voltage sense? Is there software and a command reference for the serial communications and can you log the data to a PC?
For me, this is a positive thing. Because I would like to see the voltage drop on the long wires when repairing an old car. The 5410+ allows you to see what voltage is at the input of the wire and what voltage is at the output. Seeing the voltage drop is exactly what I need.
hi u could change to the big current load in load set. we are the direct manufacturer for ET54 Series programmable dc load, cathy@east-tester.com. Any question, just feel free to contact us, thank u
120320/0157h PST-0958 UTC. Thank you for the elaborate description and function of ET5420 unit. I gotta buy one for one single purpose ie: LiFePo4 Cells capacity test. Frankly the other tests are not for me, though very useful. During the conclusion, I thought you'd mention about the large heat sink and the resistors for Battery discharge process, but I could see the Al heat sink and assumed what it is for.(to determine Cell capacity). Thanks again und stay safe. 73s...
there are no resistors, it uses the transistors shown on the heatsink to dissipate the power. i tested mine to 2x220W no problem, fan turns on after a while.
very nice video I plan buy similar type only with one channel. I want to ask if you try USB inteface to communication is only for configuration or you can read data during measuring
its SCPI commands, to set and read data. search on google for "et5420 scpi eevlog catalog" first result is pdf with all commands usually to get measurements you send "MEAS:ALL?" to it
yes but firmware doesnt support sync so you have to adjust each channel on your own this is the reason i bought it to have 2x200 and 1x400 load in one unit
Is it possible to connect a DC LOAD to my android phone to record a batterytest en time sheets? I have Samsung galaxy s20 FE. I heard ch340g driver, but i don't know if works Best regards
didnt notice it with the original footage, it only appeared after editing. i think its the ancient camcorder im using, its easy to just hit record and go no hassle but the quality isnt that great.
I just received my ET5410. Upon power up, the screen has an error message that says “COMM FAIL”. I am unable to bypass this message. Is my unit broken?
yep either open it up and check the wires going to the modules on the heatsink (red connectors, at the 2 optoisolators. they are communicating with the front panel) if one came loose put it back in or open a claim where u bought it and refund
hey, maximum Level and maximum Width is 60.000ms (1minute). Tran Mode can be Continous, Pulse and Trigger where u can trigger it via SCPI over the USB interface.
et5420 has two channel, you can set them independently to whatever you want, up to 20A each. (in parallel up to 40A) et5410 only has one channel up to 40a one channel is useless if you want to load a powersupply that has 5V and 12v rails
its a current sink not source, you cant charge. you can discharge a battery, and somehow over scpi log the data. but cant find info on the command set anywhere
(Я не говорю по-русски в переводе) Они не могут быть размещены параллельно правильно, может быть, если вы делаете это вручную, но у них нет внутренних настроек для параллельного подключения. То же самое с серией. Я еще не пробовал. каналы гальванически развязаны. в цифровом виде через оптоизоляторы и питание через обмотки трансформатора. Я редко использую полные 200 Вт, но в некоторых случаях я использовал два канала, например, батареи, для проверки емкости. Так что это зависит от того, зачем он вам нужен.
yea probably look on the front panel board for a chip called winbond, maybe its not connected to the stm32 or its faulty. it should be the eeprom that store settings and data. if possible try dumping it before replacing.
I've just bought on of these from Banggood and noticed that the fan doesn't work. I've noticed that the fan -ve goes via R21 to Gnd. The problem is that on my board (ET54.F.V1.05 2019.06.21) R21 (power resistor) is missing, unfortunately, I can see R21 on the video, but can't work out what value it is. If anyone knows the value, I would be grateful.
@@gamerpaddy Thank you, your a life saver. It's obviously easier for me to just fit the resistor than going through the rigmarole and cost of a return.
@@gamerpaddy Just like to say thank you again... I have now fitted the resistor and everything now seems to be working correctly. Having the thing in bits also gave me the opportunity to inspect that everything else was OK (well as OK as it ever was going to be for the price).
thats why theres a low and high voltage and current range, at the high voltage range its quantization level is theoretically 36mV and 5mA. low power it "is" 5mV and 750µA.
@@gamerpaddy сам был приятно удивлен. догадался интуитивно, но в инструкции такого вроде нигде не указали. ПС: а вот с CR в режиме "Battery" так и разобрался (
Да, мне было интересно, как войти в этот режим, как это было показано в руководстве пользователя, но там не было сказано, как его активировать. Продавец "Али Экспресса" тоже не смог ответить на этот вопрос.
@@gamerpaddy да они видимо "слизали" все это, и сами толком не знаю что и как )))) может есть смысл найти оригинал и почитать инструкцию от него, может еще чего там интересного найдется...
Press CH button for a few seconds to switch to the dual-screen mode. Thanks to user Электроник for finding this.
did you find the scpi commands?
looking at the software package right now, and notice a word doc.
"ET54 series -programmable dc electronic load - SCPI agreement" (47 pages about SCPI protocols)
so if you still missing it, say so and I will upload it.
Btwwhen you refer to "non standard USB port".. its only the fact that its an USB-A male cable to a USB-A male cable, that you classify as non standard, as many testgear users USB-B females socket, and not a USB-A female socket?.
I was thinking about moving the USB port to the front and exchanging that USB-A socket for a female TypeC 4pin socket, and was a little unsure now - when you referred to it as a non standard USB interface, and if there was some special pin-out in play and I would run into problems?
its simply +, gnd, data+ and data- ..?
thx for the best test and walkthrue of this easttester programmable electronic load, I have seen on RUclips, well done.
@@JAKOB1977 i would replace the usb port with a rs232 / ttl serial port instead, usb is not very convenient internally its just a usb to serial chip
@@gamerpaddy I dont have any RS232 cables... all my testing gear uses USB..My scope, my 2x KOrad PSUs, My FY6900 DDS, my 3 spectrum tools.
and this USB A female socket is as standard as it gets in 2022..
as I would guess the most common cable people have, are in fact a "USB-A male to a TypeC male cable", as it comes packed with pretty much all now a days.
so just take that USB-A into the load and the TypeC into your laptop or PC where pretty much all compute gear now a days have USB C.
I would move USB socket to the front and then It would make sense to make it TypeC also as then its TypeC to TypeC.
I gave you an offer, about uploading the whole scpi commands for the 54 series East Tester, as you expressed an interests into them, but it seems that offer went over your head, or maybe you don't need it anymore or already got them.?
its an doc of 46 pages from east tester that are found in there software zip package.
@@JAKOB1977 i dont need it
Thank-you very much for taking the time to do this video. The user interface on this unit is not the most friendly. I was wondering how to get it out of Low mode so I could discharge at 40a and bam you covered it in your video. Thank-you. The manual was no help.
Thank you for this video. The dealer shipped me a unit (I'm in the U.S.) that was programmed in Chinese. Even the instructions were in Chinese. So I had no way of knowing how to reset it until I found your video. Thank you so much.
Thank you for the review and especially the tear down.
I ordered the single channel model mainly for battery capacity testing.
I plan to use with the software so I can document the capacity and the discharge curves.
Good review! I appreciate the teardown at the end. One thing I have found is that some of these electronic loads introduce noise into the system, but the scope trace looked clean... that issue with noise is what has kept me from gettin one of these low cost loads. But, I need to get one with battery and LED test modes... or program my Keithley SMU to do it, which would be a bit of work.
Hey, not an expert, just possible ideas I read regarding this:
Common mode noise? Maybe use a differential probe or two channels on your scope. (there are some inexpensive chinesium diff. probes on Amazon that work alright)
Mains related? Perhaps if you swap the switch-mode supply it comes with for a better quality one, should be simple to mod.
Also mains related? Use an isolation transformer?
Yeah I'm also looking for ways to mod these since they're pretty inexpensive.
The one thing that concerns me is the lack of an external voltage sense. I could measure the resistance of all my wires and correct the voltage values, but that is a pain.
Is there any way to add an external voltage sense?
Is there software and a command reference for the serial communications and can you log the data to a PC?
yes search eevblog forums someone made a mod for ext. sense
For me, this is a positive thing. Because I would like to see the voltage drop on the long wires when repairing an old car. The 5410+ allows you to see what voltage is at the input of the wire and what voltage is at the output. Seeing the voltage drop is exactly what I need.
Thanks for your video! I received it today, and i was unable to go over 3A. Didn't know about the high power mode!
hi u could change to the big current load in load set. we are the direct manufacturer for ET54 Series programmable dc load, cathy@east-tester.com. Any question, just feel free to contact us, thank u
@@cathywu6282 Hi! Can you message me at WeChat. JvCondeQuing. I am interested om buying this, im from Philippines. Is this TRANSFORMER TYPE?
I had the same challenge! But, covered in the video thankfully!
Thanks for your review !
What is the typical power draw of the unit for standard operation? (not talking about the input specs on measurements but the plug in the back)
120320/0157h PST-0958 UTC. Thank you for the elaborate description and function of ET5420 unit. I gotta buy one for one single purpose ie: LiFePo4 Cells capacity test. Frankly the other tests are not for me, though very useful.
During the conclusion, I thought you'd mention about the large heat sink and the resistors for Battery discharge process, but I could see the Al heat sink and assumed what it is for.(to determine Cell capacity).
Thanks again und stay safe. 73s...
there are no resistors, it uses the transistors shown on the heatsink to dissipate the power. i tested mine to 2x220W no problem, fan turns on after a while.
@@gamerpaddy Danke schoen..
Thanks for the review. It helps a lot.
hi we are the direct manufacturer for ET54 Series programmable dc load, cathy@east-tester.com. Any question, just feel free to contact us, thank u
very nice video I plan buy similar type only with one channel. I want to ask if you try USB inteface to communication is only for configuration or you can read data during measuring
its SCPI commands, to set and read data. search on google for "et5420 scpi eevlog catalog" first result is pdf with all commands usually to get measurements you send "MEAS:ALL?" to it
Cans it work with both channels summary from one source about 400W?
yes but firmware doesnt support sync so you have to adjust each channel on your own
this is the reason i bought it to have 2x200 and 1x400 load in one unit
I hope you read this How did you hook this up to a scope and get a square wave?
Hi, about the program shown at minute 31:50, what is the range of the Tran Mode Cont ? minutes can be set ? thanks
hi, i try et5410 with my power supply but not start, in CC mode the et5410 start and stopped with write "Unreg", How I can set to start it? thanks
Is it possible to connect a DC LOAD to my android phone to record a batterytest en time sheets? I have Samsung galaxy s20 FE. I heard ch340g driver, but i don't know if works
Best regards
Very good friend. I bought the my et5420. I waiting arrive. I from brazil e bought in banggod chine.
Great video! Thanks. But why do you record in interlaced mode?
didnt notice it with the original footage, it only appeared after editing. i think its the ancient camcorder im using, its easy to just hit record and go no hassle but the quality isnt that great.
How do you find a USB driver? I have a male-to-male cable, but I can't contact it from a Windows 10 computer.
Its ch340g Driver Same as with Chinese arduino clones
aint it shockingly simple to add sensing wires to this model??
I just received my ET5410. Upon power up, the screen has an error message that says “COMM FAIL”.
I am unable to bypass this message. Is my unit broken?
yep
either open it up and check the wires going to the modules on the heatsink (red connectors, at the 2 optoisolators. they are communicating with the front panel) if one came loose put it back in
or open a claim where u bought it and refund
I want to load test batteries with this device, but I want to log the results in a time series, is this possible?
it has a usb port where control it via standard SCPI from you computer and log via external programs
About the program shown at minute 31:50, what is the range of the Tran Mode Cont ? minutes can be set ?
hey, maximum Level and maximum Width is 60.000ms (1minute). Tran Mode can be Continous, Pulse and Trigger where u can trigger it via SCPI over the USB interface.
@@gamerpaddy Thank you
Hi, beautiful description, you prefer ET5410 or ET5420 dual channel? which one should you take? thanks
dual channel because you can parallel them (not in software, but you can set both to the same CC and they dont fight eachother)
@@gamerpaddy to put them in parallel to have 40Ampere?
yes
I don't understand the different because the 5410 is 40A the same
et5420 has two channel, you can set them independently to whatever you want, up to 20A each. (in parallel up to 40A)
et5410 only has one channel up to 40a
one channel is useless if you want to load a powersupply that has 5V and 12v rails
Useful video thanks. Will this device also charge a battery and record the V t profile and show it on a laptop?
its a current sink not source, you cant charge. you can discharge a battery, and somehow over scpi log the data. but cant find info on the command set anywhere
@@gamerpaddy yes sure it’s not a source but can it monitor the charging by another source and show the charging profile graphically?
@@julianperry1406 its not a multimeter its a sink
Is there a limit to the capacity this device can measure? I'm looking to buy this unit to measure 280Ah LifePo4 cells. Will it do the job?
read the manual
@@gamerpaddy thanks for the reply
по вашему мнению, нужны ли два канала или и одного хватит ?
каналы гальванически развязаны ?
т.е. можно ли их включать последовательно и параллельно ?
(Я не говорю по-русски в переводе)
Они не могут быть размещены параллельно правильно, может быть, если вы делаете это вручную, но у них нет внутренних настроек для параллельного подключения.
То же самое с серией. Я еще не пробовал.
каналы гальванически развязаны. в цифровом виде через оптоизоляторы и питание через обмотки трансформатора.
Я редко использую полные 200 Вт, но в некоторых случаях я использовал два канала, например, батареи, для проверки емкости.
Так что это зависит от того, зачем он вам нужен.
Does it revert back to chinese menu when unplugged ?
no it saves all settings
@@gamerpaddy Great, so i my ET5410 unit is faulty.
yea probably
look on the front panel board for a chip called winbond, maybe its not connected to the stm32 or its faulty. it should be the eeprom that store settings and data. if possible try dumping it before replacing.
Can you see capacity of a batt like Ah?
yes
I've just bought on of these from Banggood and noticed that the fan doesn't work. I've noticed that the fan -ve goes via R21 to Gnd. The problem is that on my board (ET54.F.V1.05 2019.06.21) R21 (power resistor) is missing, unfortunately, I can see R21 on the video, but can't work out what value it is. If anyone knows the value, I would be grateful.
i just took it apart again its brown black gold gold, so 1ohm resistor. i guess a 2Watt size.
@@gamerpaddy Thank you, your a life saver. It's obviously easier for me to just fit the resistor than going through the rigmarole and cost of a return.
@@gamerpaddy Just like to say thank you again... I have now fitted the resistor and everything now seems to be working correctly. Having the thing in bits also gave me the opportunity to inspect that everything else was OK (well as OK as it ever was going to be for the price).
Is this Transformer Type or Mosfet Type?
Mosfet
It seems using stm32 buildin ADC and DAC，only 12-bit
thats why theres a low and high voltage and current range, at the high voltage range its quantization level is theoretically 36mV and 5mA. low power it "is" 5mV and 750µA.
если кому интересно, чтоб на экране отображались сразу оба канала, надо нажать и удерживать кнопку "ch".
Спасибо вот что я искал
@@gamerpaddy сам был приятно удивлен.
догадался интуитивно, но в инструкции такого вроде нигде не указали.
ПС: а вот с CR в режиме "Battery" так и разобрался (
Да, мне было интересно, как войти в этот режим, как это было показано в руководстве пользователя, но там не было сказано, как его активировать. Продавец "Али Экспресса" тоже не смог ответить на этот вопрос.
@@gamerpaddy да они видимо "слизали" все это, и сами толком не знаю что и как ))))
может есть смысл найти оригинал и почитать инструкцию от него, может еще чего там интересного найдется...
@@gamerpaddy кстати, по поводу обновления прошивок ничего не знаете ?
Fan comes on always ? eww
its pretty silent and ramps up once it heats up
I thought it had sensing wires at the back??
...and yeah todays's GUI's SUCK!!!!!!!!!!!