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AVHzY CT-2 User Manual

Usb power meter
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CT-2
USB Power Meter
User Manual
Welcome to use CT-2 USB power meter
designed and provided by yanke928, this
manual will lead you to use the device, please
save the manual properly for looking up.

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Summary of Contents for AVHzY CT-2

  • Page 1 CT-2 USB Power Meter User Manual Welcome to use CT-2 USB power meter designed and provided by yanke928, this manual will lead you to use the device, please save the manual properly for looking up.
  • Page 2 Warning It is a fatal mistake to operate the product as follows: 1. After high voltage triggered, the insertion of any device which has a maximum operating voltage below that high voltage may cause damage to the device plugged in. 2.When the power meter is monitoring the voltage &...
  • Page 3 Structure...

  • Page 4: Home Screen

    Home Screen The home screen has 5 divided pages: The 1st page shows the voltage & current that the being-monitored devices are working at the time. The accumulated energy and capacity are shown below. Time, environment temperature, data set number are also shown in this page.
  • Page 5 The 2nd page shows the voltages on D+ D- lines, and the protocol that may working according to them. If a PD device is detected on the line, the PD indicator turns on, so as The arrows on the bottom of the screen indicates the flowing direction of the current(or energy) , Voltage, current, and power are also shown in this page.
  • Page 6 The 3nd page shows the time, platform voltage, energy, capacity, and date. Note that the platform voltage equals to energy divided by capacity.
  • Page 7 The 4th page shows the voltage, current, power, and environment temperature in big font. The 5th page turns the screen off, usually to reduce the power consumed by the meter itself to get higher precision.
  • Page 8 Menu A long press to the middle key will make the system enter the main menu.
  • Page 9 • Switch Group The device keeps 5 groups of data, this can switch from one to another. • Clear This Group This will reset the data in the current group. • Time Settings This option sets the time, which will be shown on the idle clock page.
  • Page 10 When there is no operation on the device for some time, and the current is below recording threshold, system enters idle clock mode. The Idle clock time can be set from 15s to 300s, and clock can be disabled. If a current above the threshold is detected, system exit this mode and enter home screen.
  • Page 11 • Personalized The device has some features on personalization. Theme Color: The theme color is the UI color such like dialogues, menus, etc. This option sets that color. Enable/Disable Custom Theme: This enable or disable the custom theme. The guide of theme customizing is written at the end of the manual.

  • Page 12: Restore Settings

    • Restore Settings Restore settings to default. • Calibration The user shall not enter this option.

  • Page 13: System Info

    • System Info See the software version, author, and vendor. • Developer Tools The user shall not enter this option.
  • Page 14 FastCharge Trigger The device supports the triggering of QC2.0/QC3.0, Apple 2.4A, PD, HuaWei FCP, Samsung AFC, and contains the auto detect routine of the protocols above. The device also provides a routine which can detect if an apple cable is MFI authorized(Reference only). •...
  • Page 15 • QC2.0...
  • Page 16 In the QC2.0 mode, the user select the voltage wanted to be triggered by scrolling the left and right keys. A click on the middle key is recognized as confirmation. A double click on the middle key will lead the system to exit this mode back to the home screen.
  • Page 17 • QC3.0 In the QC3.0 mode, the user adjust the voltage by scrolling the left and right keys. Every click will have an effect of 200mV according to the protocol.
  • Page 18 A double click on the middle key will lead the system to exit this mode back to the home screen. The voltage keeps the level that the user required after exiting this mode. • Auto Detect...
  • Page 19 In auto detect mode, the device will try full sequence of the protocols, and show the protocol is supported or not. During the process, don't plug-in any other device except the being-tested adapter/powerbank. • Apple 2.4A This will apply apple recognization voltages on D+ D- pins to accelerate charging on apple devices.
  • Page 20 Wait for a few seconds. Result "Passed" indicates the cable is MFI authorized. Result "Fake" indicates the cable is not MFI authorized. Result "Unknown" indicates the test cannot be done correctly, it is most probable that the adapter is not QC3.0 supported.
  • Page 21 • Power Delivery The meter has the feature of PD(Power Delivery) requesting. To avoid influence to the communications between the adapter and the phone, this feature shall be disabled when not used. The user can enable this feature by toggling the switch on the right bottom side of the device to "ON"...
  • Page 22 The example report is shown above. The power levels are listed (e.g. 9V@2.7A means the voltage level is 9V, and the maximum operating current is 2.7A). Press the middle key to enter the requesting mode.
  • Page 23 In the PD requesting mode, the user adjusts the voltage levels by scrolling the left and right keys. A double click on the middle key will lead the system to exit this mode back to the home screen. The voltage keeps the level that the user required after exiting this mode.
  • Page 24 • HuaWei FCP The same as QC2.0. • Samsung AFC The same as QC2.0. • Release FastCharge After a QC2.0/3.0, FCP, AFC, PD triggering, if the user wants the voltage go back to 5V, shall make a click on the left key and confirm.
  • Page 25 Cable Resistance The meter can measure the resistance of the MicroUSB cable & USB-A 2 Type-C cable, and provides a program for 4-line cable resistance test. The meter can also evaluate the resistance of the Type-C 2 Type-C cable.
  • Page 26 • Normal mode The procedure of the normal mode is : 1. Connect the meter to the adapter by the USB-A male port. Then plug-in a constant- current load(>500mA) into the USB-A female port. 2. Disconnect the meter. 3. Reconnect the meter with an A-C cable or a MicroUSB cable, then plug-in the same load in step1, the cable resistance will be shown on the screen.
  • Page 27 Since the negative line and positive line usually have the same dimension and material, the result is reliable in the most cases,. The procedure of the bypass mode is : 1. Connect the meter to the adapter by the USB-A male port. Then plug-in a constant-current load(>500mA) into the USB-A female port.
  • Page 28 Diagram Painting A double click on the home screen will make the system into diagram painting mode:...
  • Page 29 In this mode, clicks on the middle key can toggle the diagram from D+D- voltage and voltage-current. Double click the middle key can exit this mode back to home screen. You can adjust the sample rate by scrolling the key to the left & right, available sample rates are 1fps, 2fps, 4fps, 10fps, 20fps, 30fps, 50fps,100fps.
  • Page 30 Idle Clock This device can be used as a digital clock when it's not in use. Refer "Menu" chapter for the related settings.
  • Page 31 Offline Recording The device consists "Offline Recording" feature, it can record the voltage & current in a period for further analysis. Right click at the home page to enter offline recording menu:...
  • Page 32 • Curve Create New After clicking "Curve Create New" option, the screen will turn to above. Current voltage, current and power is shown on the top-left side, point No., space condition, sample rate is shown in green, summary data is shown in white.
  • Page 33 You can manually pause or continue the record by clicking the "Pause/GoOn" button, stop the record by clicking "Stop" button. For automatic record starting/stopping, look up in "Curve Settings" section.
  • Page 34 After a record, the device will enter record summary screen. It shows the starting time of the record, record length, sample rate and summary data including capacity, energy and lasting time. You can view the record diagram by click "Diagram" button, but it is more recommended to view the chart on PC.
  • Page 35 • Curve Settings The device can store at most 4 curves, each curve can store data of 3750 points. For example, if the sample rate is 2 seconds/point, each curve can store the data in 3750 * 2 = 7500 seconds, which is about 2 hours. You can set a lower sample rate to get a longer duration, but this will lead the curve to lose some details.
  • Page 36 The automatic behavior of the device can be set by "Start Threshold" and "Stop Threshold". When the current is lower than the start threshold, the device is in standby mode and won't record any data. Once the current is above the start threshold, record starts. Setting the start threshold to 0mA means the record always starts after created.
  • Page 37 PC Application The device can be connected to the PC for more features. Connect the device to the PC with a micro USB cable. For the first time, you should install the driver. Click the "Install Driver" menustrip to run the driver installer.
  • Page 38 This will be shown if no problem occurred. • Offline record readout...
  • Page 39 Double click the record which you want to read out. Wait for a second, the diagram will be shown: On the right-hand side of the form, the information of the record (sample rate, length, capacity, energy ) is shown. If you want to see the detailed information on a certain point, move the cursor on that point, detailed information at that point will be shown:...
  • Page 40 Voltage, current, power at that point is shown.
  • Page 41 You can save & open the record in "Record" menu. Records can be directly recorded by the PC. Set the start threshold, stop threshold, cutoff timeout. Then click "Start" button to start recording. when online record is running, the diagram will be refreshed dynamically.
  • Page 42 You can get the screenshot of the device by clicking "Screenshot" button.
  • Page 43 • PD Listener PD listener can readout & analyze the messages on the CC line. Keep the device on the home screen, click "PD Listen" button to enter PD listener mode. Connect the device and the PD charger/ powerbank, then plug in the consumer(mobile phone etc.), you can see the messages between them on the application:...
  • Page 44 The list on the middle shows the no, message type, message brief, time and the voltage&current when the message is sent.
  • Page 45 Select the message you concerned, the detailed information(Message header, message objects and their analysis) of the message will be shown on the right, the hex raw data is shown in the box at the right-bottom side (in little-endian). Sometimes, GoodCRC messages will make the messages confusing, you can mask the GoodCRC messages by unchecking "GoodCRC"...

  • Page 46: Firmware Update

    • Firmware Update When the device need a firmware update, click the "Advanced" menu then click "Firmware Update". A firmware update will be performed automatically.