RD TC66/TC66C Type-c usb meter operation, accuracy, PD trigger instruction

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New products RD TC66/TC66C Type-c PD trigger meter was published. The normal price TC66 19.5USD/piece, TC66C 24.5 USD/piece. If you like it , please check it in time.
products link：www.aliexpress.com/item/RD-TC...
For its main function:
A: 6digit voltage and current, resolution is 0.0001V(0.1mV)/ 0.00001A(0.01mA)
B: quick charge protocol detection,
C: PD and other trigger operation,
D: USB communication for PC software,
E: Bluetooth communication for IOS app and android APP,
F: Firmware upgrade,
G: two-way measurement,
H: independently power supply
2, in 28st-31st. there is also a big sale promotion on aliexpress and our shop, in our shop discount are from 17% off 40% off, most DPS power supply discount are more than 25% off， for A3 and A4 buyer, there are some products more off 5%. There is also big coupons more 65 off 6 usd, 130- off 12 usd, 195- off 18 usd ……
This is our home page , please check
rdtech.aliexpress.com/store/9...

Опубликовано:

26 мар 2019

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Комментарии : 104

@docbrazen 3 года назад

RD makes great meters. I have TC66C and UM25C, both very good!

@rdtech9153 3 года назад

thank you for your support, if you have any questions, just contact us, have a nice day :D

5 лет назад

Show muito bom

@rdtech9153 5 лет назад

THANK YOU

@Vimes. 3 года назад

Great to find this overview and also the link for the manual. I have now got the app for my Android phone. My TC66C has just arrived in the UK direct from you, thanks for that. I see that it supports firmware updates if they are released. Mine is firmware 1.14 is that the latest for this device..? Many thanks for a speedy delivery.

@rdtech9153 3 года назад

hello, for now the latest version is V1.14, when we optimize it or add new functions, there should be a update, if you have any questions, just contact us, have a nice day

@Vimes. 3 года назад

@@rdtech9153 Many thanks for your reply and for making really useful meters at an affordable price. 👍

@rdtech9153 3 года назад

@@Vimes. thank you :D

@KaMyKaZii 2 года назад

Hi, I upgraded to version 1.16 and everything went fine. I just think you guys should be clearer on what's been fixed rather than just saying "Stability optimization" in the changelog. But one thing I've noticed now (I don't know if it happened in previous versions) is that when you trigger some desired voltage/protocol and go back to the home screen, you can see there's a tiny current measurement that quickly becomes 0.00000A and then comes back, this cycle keeps repeating itself every few seconds, forever. Could you tell me why this happens? Thanks!

@rdtech9153 2 года назад

hello, you know that TC66 is 6 digit display, so the resolution is 0.00001A, so when using trigger function, even environment will affect the readings, just like the multimeter, if it has 5-6 digit display and you do not connect anything, the readings will not be 0

@icpart 5 лет назад

Hi I received my TC66 yesterday and when is powered via micro USB is showing 25mV readings without any load. Also from your video when you power the meter from right Type C plug you can see some reading of current. That is self consumption of device which is inaccurate at all. From left Type C plug there is no that bug without any reading but in reverse direction there is it some reading of current. Also can you post the procedure how to calibrate that USB device?

@rdtech9153 5 лет назад

Hi friend thank you for your message , I guess you did not read the instruction in time, did you see the button C （we point it at our instruction,) when you use the micro cable to power on, you need turn this button, it show 0, for that voltage , it is diode flow back voltage , so we use this button to solve this , it is not what you said self-consumption

@dlaurent67 5 лет назад

Hi. I have UM25C and others. I have some difficulties to see rapidly the difference between UM25C and this new TC66C. Can you help me to compare ? Thanks

@rdtech9153 5 лет назад

the difference ? the difference is very clearly TC66C have PD trigger , UM25C don't have , you can check our page , there are more details for this

@RichardBronosky 3 года назад

Can the PD trigger function request 20V 5A from USB-PD supply?

@rdtech9153 3 года назад

hello, it can trigger 20V5A but your charger need to support this mode

@4NDR3SV 5 лет назад

Can I attach to a USB 2.0 to USB type C Adapter to work with 2.0 usb ports?

@rdtech9153 5 лет назад

of course you can but this adapter will increase the resistance, it will decrease the current if you want to charge you phone

@Leif_YT 3 года назад

I'm very happy with my unit - great device. Is it possible that we get a PPS test (Samsung for example seems to use it on it's latest devices) via a Firmware update? Or will this require a new device?

@rdtech9153 3 года назад

hello, for PPS test, TC66 can trigger this protocol, but it cannot show you it is PPS

@Leif_YT 3 года назад

@@rdtech9153 Thank you for the reply. That should do the job for manual testing 👍👍

@rdtech9153 3 года назад

@@Leif_YT you are welcome

@sebastianweber7054 2 года назад

Hi, i just bought teh TC66C. It shows currents, but it does not let energy throught, means my devices are not charged when the TC is pluged in. Do i have to switch to a certain mode`?

@rdtech9153 2 года назад

hello, if you are using the TC66C to test the charging voltage, you need to make sure that the PD switch is off, and the PWR switch is on, if in this way, it still does not work, please contact us and show us the problem with a short video, we will help you solve that

@2ndB166ER 2 года назад

@@rdtech9153 i did the factory reset abd now it works (:

@rdtech9153 2 года назад

@@2ndB166ER good, if you have any problem , please let me know

@francoisgervais1 5 лет назад

What is the product at 2:13 in the beautiful aluminium housing?

@rdtech9153 5 лет назад

That‘s DPS5005 with a diy aluminium housing:D

@my.username 4 года назад

Does this unit also trigger out available charger Amps, and not only the voltages of the charger? I know some models shows also the max amps for each available voltage of the tested charger? For example 5V/3A, 9V/3A, 15V/2A, etc. Also, can it do the USB-C PD trigger from both USB-C connectors, or only from the male? If so, would it work with a USB-C female to female adapter, so one can test a charger with a non-removable USB-C cable?

@rdtech9153 4 года назад

thank you for your comment: 1. yes it wil trigger the current and voltage, but only for standard quick charge protocol like QC 2.0 9V/2A, 5V/3A is not a standard protocol, it is designed by producer so it is privite. 2. for trigger function, you can use both sides to trigger, it supports current passing in two directions.

@my.username 4 года назад

@@rdtech9153, thank you for your answer. Oh okay, i see. What i am looking for is a USB-C tester that can show for example the available voltages and amps in all PD chargers, for example in a Nintendo Switch charger which only supports 5V/1.5A and 15V/2.6A, so even proprietary profiles. I think the Power-Z KT001can do that, but its expensive.

@rdtech9153 4 года назад

@@my.username [show for example the available voltages and amps in all PD chargers] do you have time to look at the manual of tc66c, at section 3.5.2, is it what you want?

@my.username 4 года назад

@@rdtech9153 I have looked for the manual online but didnt find it. Also, i thought the manual will not cover more than very basic things, and the Chinese "English" translated manuals are often very hard to understand. But i would very much like to read the manual, do you have a link to it?

@rdtech9153 4 года назад

@@my.username please check it : drive.google.com/open?id=1eSnSTbXKKwxNMxZsUlELsaMxs4OCruTg

@francoisgervais1 5 лет назад

You guys though of putting the pc tool opensource on github? I'd like to have the protocol definition so I can make a python library that fetches data.

@rdtech9153 5 лет назад

So sorry we cannot offer that.

@FuchsHorst 5 лет назад

@@rdtech9153 Can you provide the protocol definition?

@rdtech9153 5 лет назад

@@FuchsHorst protocol? they are named by their designers, this TC66C can only identify them,you can check the detailed explaination on google

@FuchsHorst 5 лет назад

Rd Tech some user want to read the raw values from your devices to use them in other tools of their choice, like screen broadcasting tools or web apps to monitor devices. There are some reverse engineereing projects on github but all focus on your older Bluetooth connectivity. It would be awesome to know how to read our values by USB and your new Bluetooth interface

@rdtech9153 5 лет назад

@@FuchsHorst so sorry our product doesn't support other device reading data from itself now, we will optimize it

@andreasprotopapas6497 5 лет назад

Is there a type-C connector to crocodile clips accessory that can be used for connecting to a Battery directly through the Battery's poles? There are occasions when you need to monitor Voltage and Current values form the Battery to the load and you need to connect the TC66C between the two in order to do this. Anyone has any ideas ?

@rdtech9153 5 лет назад

sorry,we dont have that

@andreasprotopapas6497 5 лет назад

@@rdtech9153 Thanks for your reply. In your Video you show an interface board that on one side connects to a Power supply and on the other side it connects via the type-C connector to the TC66C. Therefore what does this interface board do? Thanks

@rdtech9153 5 лет назад

@@andreasprotopapas6497 this is a connector board , we use this to be as connector

@rdtech9153 5 лет назад

@@andreasprotopapas6497 you mean independent power supply? TC66C can be charged independently so that it will not consume system power, and you can get more accurate measurement value especially measuring low current.

@andreasprotopapas6497 5 лет назад

@@rdtech9153Therefore if you connect together pins A1,A12,B1 and B12 then you can connect this to crocodile clip and mark it as -ve (Ground) input power and then connect A4,A9,B9 and B4 together and connect this to a crocodile clip and mark it as +ve (VS) input power then you will be able to monitor any supply that will be connected to the Crocodile clips ?

@Noname-ct5dh 5 лет назад

Hoy he comprado el medidor TC66. ¿con qué tensiones puedo alimentar el TC66 vía Micro USB? ¿qué valor de voltaje recomienda?

@rdtech9153 5 лет назад

есть диапазон входного напряжения, вы можете проверить страницу 3,5-24В

@Noname-ct5dh 5 лет назад

@@rdtech9153 ok!

@rdtech9153 5 лет назад

@@Noname-ct5dh thank you

@mofared 4 года назад

3:15 how did you trigger usb for more than 20v

@rdtech9153 4 года назад

we don't use trigger mode at that time, we just use a power source to provide voltage, increase 1V each time, and use this multimeter to show the accuracy

3 года назад

Can you make it possible to change the settings (power trigger) from the app as well, the app dose nothing but mirror the screen. pretty useless

@rdtech9153 3 года назад

use app to trigger? how do you deal with the hardware PD switch?

@ivanbest107 3 года назад

20 V 5 A PD supports ??

@rdtech9153 3 года назад

yes, it supports

@gederpeter 4 года назад

What kind of lab power supply is this?

@rdtech9153 4 года назад

hello, can you tell me the detail time of this video showing the PSU?

@mytube2013 4 года назад

Does it burn device if user forgot to unplug his phone when trigger pd testing and get high voltage output?

@rdtech9153 4 года назад

hello, 1. usually the PD trigger function is used for electric load, if you need to charge your phone, just use it in normally way, 2. if you trigger a voltage which exceeds the limit, and your phone has no protection, you phone may be damaged, just like you trigger a 9V for a phone which support 5V only

@mytube2013 4 года назад

Rd Tech thanks for reply. Do you know if macbook and ipad pro have such protection?

@rdtech9153 4 года назад

@@mytube2013 sorry I don't know, you don't need to use the trigger function when charge macbook or Ipad, just use charge mode, turn off the trigger function by move the switch to OFF

@mytube2013 4 года назад

Rd Tech great, I just worry about safety to be handled by kids. By the way, I wish your company have an official seller on Amazon so we don’t need to guess which seller is selling the authentic RD products.

@rdtech9153 4 года назад

@@mytube2013 hello we are doing that , just finished the registration

@ivane1168 4 года назад

a few days ago I bought UM25C: 1) the App is too old and doesn't work with Android 9 2) USB-C doesn't have D+ D- lines, so my products, which I wanted to test do not strat work with that, 3) Voltage precision is ok, current so-so but anyway better than j7-c

@rdtech9153 4 года назад

hello, thank you for your support 1. we have test the app on android 9, it works, do you connect it in the right way? android app need to connect twice, if you make sure it is app problem, you can download this version to have a try:drive.google.com/open?id=1h74sdYTeoUECegOndLLrZ7rhoZGiCIee 2. USB-C use CC line to communicate, you can choose usb-A male port to USB-A female port, or USB-C in to USB-C out 3. the current accuracy of UM25 is ±（1‰ +4 digits), and we are trying to make it better

@colin8949 2 года назад

@@rdtech9153 Hi I am looking for the app - but I get Error 404 on this link thanks :)

@rdtech9153 2 года назад

@@colin8949 which app do you want to download? UM25C or TC66C? and you are using android phone or iPhone?

@colin8949 2 года назад

@@rdtech9153 Thank you, I have found it, all good :)

@rdtech9153 2 года назад

@@colin8949 ok, if you have any needs, just contact us

@eyescreamcake 2 года назад

A DCP is detected as "QC2.0"? :/

@rdtech9153 2 года назад

for the protocol, it is judged by the D+ and D- signal

@eyescreamcake 2 года назад

@@rdtech9153 DCP/CDP is indicated by short between D+ and D-, not a specific voltage. I don't know if your hardware can test for this

@rdtech9153 2 года назад

@@eyescreamcake because the displayed protocol name is decided by the D+ and D-, so sometimes it cannot be 100% correct, but it does not affect the real charging mode

@mycncxyz 5 лет назад

Your gadgets are becoming more and more complex, so people need quite a lot of time to figure it out. As a result, they order rarely and less.

@rdtech9153 5 лет назад

that's because our customers want more:higher accuracy,two-way measurement....but we do keep a simple interface for people who don't need these functions:D,and we have Introduction for every function of TC66C,take a few minutes to read the corresponding introduction and you will find that's not so complex:D

@swifty99x 4 года назад

Interesting product, but please remove all the unnecessary trailing digit. More than 3 are totally useless. Und please align the numbers on the dir, makes it more readable. Is it possible to update firmware? An open Protocol would increase sales!

@eyescreamcake 2 года назад

Speak for yourself. I need to measure

@swifty99x 2 года назад

@@eyescreamcake yes. do you need 0.00200 A or 2.00 mA? It is a matter of range vs scale. So do you need more then 3 digits? I don't. At least not at a tool I do not trust more then 3 digits.

@eyescreamcake 2 года назад

@@swifty99x ADCs are linear

@swifty99x 2 года назад

@@eyescreamcake not as much as you think, maybe. The meter states an accuracy of 0.1%, which I believe is a bit exaggerated. Meters with this accuracy are usually quite expensive. Anyway, let's believe it, and as it has a full range of 5A, the error would be 5mA. Good luck measuring 2mA accurately. Don't be fooled on a fancy display. See my first post.

@eyescreamcake 2 года назад

@@swifty99x You may not need the accuracy, but I do. I don't understand why you're advocating that a company make their products worse.

@Czowiek869113325 2 года назад

Słaby film. Nie widać co tam jest wyświetlane. Postarajcie się bardziej.

@rdtech9153 2 года назад

I do not understand what you said, what you mean?

@Czowiek869113325 2 года назад

@@rdtech9153 use a translator

@rdtech9153 2 года назад

@@Czowiek869113325 I mean what you are talking about not your language

@outolempinimi5165 4 года назад

These have horrible build quality. Just look at the slider switches on the side. The small pins are made of weak plastic and brake off by applying very moderate pressure. Typical cheap Chinese design, no product durability testing whatsoever before the release.

@rdtech9153 4 года назад

1. there is no quality problem for our product 2.before we sell them, we have aging test

@outolempinimi5165 4 года назад

I purchased this model a month ago and now, after carrying it in the provided case, the power switch plastic pin is broken. It is the worst design I have seen in any product in a long time, even compared to typical cheap Chinese [insert your preferred qualifier here]. That is a part you have not clearly tested at all, now go try it yourself.

@rdtech9153 4 года назад

@@outolempinimi5165 I have tried many times with tc66 in the warehouse , the switch moves smoothly, you don't need to put a lot of stress on it, we write it in the instruction:"Switch stroke is short so use the switch gently to avoid damage please" and when you meet problem, why not contact the after sell service

@outolempinimi5165 4 года назад

I have already contacted the seller and the issue is yet unresolved. However, I want to bring out the design flaw in public because every buyer should be aware of the issue. The pin is shaped down very narrow at its root which makes it extremely fragile to brake off when force is applied up or downwards (lateral to the movement direction of the switch). There's nothing wrong with the switch itself, only the plastic pin is very weak. In my case it broke by itself when carried inside the provided soft plastic case which is flexing too much to protect the pins from external pressure e.g when carried along other items in a bag.

@rdtech9153 4 года назад

@@outolempinimi5165 please continue to contact the seller .. he will help you