diymore U-18

diymore U-18 USB Tester Meter User Manual

Modail: U-18

1. Ro-ràdh

The diymore U-18 USB Tester Meter is a versatile diagnostic tool designed for monitoring and analyzing USB power delivery. It provides real-time data on voltage, current, power, capacity, and supports various fast charging protocols. This manual provides instructions for the proper setup, operation, and maintenance of your device.

2. Fiosrachadh Sàbhailteachd

  • Na nochd an inneal gu taiseachd no fìor theodhachd.
  • Seachain a bhith a’ leigeil às no fo smachd an inneal gu buaidhean làidir.
  • Na feuch ri an inneal a thoirt às a chèile no atharrachadh. Dh’fhaodadh atharrachaidhean gun chead am barantas a dhèanamh neo-dhligheach agus cunnartan sàbhailteachd adhbhrachadh.
  • Ensure connections are secure before applying power.
  • Operate the device within its specified voltage agus crìochan làithreach gus casg a chur air milleadh.

3. Toradh thallview

The diymore U-18 features a 1.77-inch TFT color LCD screen for clear data display and multiple input/output ports for broad compatibility.

diymore U-18 USB Tester Meter with labeled ports and features

Figure 3.1: diymore U-18 USB Tester Meter showing its various ports and functionalities.

Labeled diagram of diymore U-18 USB Tester Meter ports and keys

Figure 3.2: Detailed diagram illustrating the input/output ports and control keys of the U-18 tester.

Prìomh fheartan:

  • Sgrion TFT 1.77-òirleach: High-definition display for real-time monitoring of charging data.
  • Multi-functional Interfaces: Seven distinct display interfaces for various data presentations.
  • Fast Charging Protocol Support: Compatible with PD, QC2.0, QC3.0, and other protocols.
  • Taisbeanadh Dàta Coileanta: A’ sealltainn voltage, current, power, energy, capacity, and fast charging protocol status.
  • Cable Internal Resistance Measurement: Utilizes the voltage drop method to calculate cable resistance.

4. Suidhich

4.1 Dè a tha sa bhogsa

  • diymore U-18 USB Tester Meter

4.2 Ceangal Tùsail

To begin using the U-18 USB Tester Meter, connect it inline between your power source (charger, power bank) and the device you wish to test.

  1. Connect the USB-A Input (4V-24V) or Type-C Input port of the U-18 to your power source.
  2. Connect the USB-A Out (0-6.5A) or Type-C Output port of the U-18 to your device (e.g., smartphone, tablet, laptop).
  3. The display will automatically power on and begin showing real-time measurement data.

5. Stiùireadh Obrachaidh

5.1 Basic Measurement Display

Upon connection, the tester will display key parameters on its 1.77-inch TFT screen.

diymore U-18 USB Tester Meter displaying multiple test data points

Figure 5.1: The tester's display showing voltage, current, power, energy, capacity, and fast charging protocol information.

  • Voltage Taisbeanadh: A’ sealltainn an fhìor-ùine voltage (V).
  • Taisbeanadh làithreach: Shows the real-time current (A).
  • Taisbeanadh cumhachd: Shows the real-time power (W).
  • Energy Statistics: Accumulates total energy consumed (Wh).
  • Capacity Statistics: Accumulates total charge capacity (Ah).
  • Fast Charging Protocol Display: Indicates detected fast charging protocols (e.g., PD, QC2.0, QC3.0).

5.2 Navigating Display Interfaces

The U-18 offers 7 types of display interfaces. Use the KEY - agus PRÌOMH+ buttons (labeled 2 and 3 in Figure 3.2) to cycle through different display modes and settings.

Multiple functional interface settings of the diymore U-18 USB Tester Meter

Figear 5.2: Examples of various display interfaces, including system settings, simple measurement, detailed settings, ripple measurement, and protocol detection.

5.3 Cable Internal Resistance Measurement

This feature allows you to assess the quality of your USB cables.

diymore U-18 USB Tester Meter measuring wire internal resistance

Figure 5.3: The tester connected to a power source and device, displaying cable resistance measurement.

  1. Connect the U-18 to a power source.
  2. Navigate to the "Cable Measurement" interface (refer to Figure 5.2).
  3. Connect the cable you wish to test between the U-18's output and a load (e.g., a device drawing current).
  4. The system will automatically calculate and display the cable's internal resistance. A lower resistance indicates a better quality cable.

5.4 Treòrachadh an Taisbeanaidh

To toggle the display orientation, long-press the PRÌOMH+ button (labeled 3 in Figure 3.2).

6. Cumail suas

  • Keep the device clean and dry. Use a soft, dry cloth to wipe the screen and casing.
  • Seachain a bhith a’ cleachdadh glanaidh sgudail no solventan.
  • Cùm an inneal ann an àite fionnar, tioram nuair nach eilear ga chleachdadh.

7. A ’dèanamh trioblaid

  • Gun taisbeanadh: Ensure the tester is properly connected to a power source and a load. Check if the power source is active.
  • Leughaidhean neo-mhearachdach: Verify that all connections are secure. Ensure the power source and load are functioning correctly. Readings can be affected by poor quality cables or unstable power sources.
  • Inneal nach eil a’ cur cosgais: Check the connections between the tester, power source, and device. Ensure the power source is providing sufficient power.
  • Cable Resistance Reads 9999.9Ω: This typically indicates an open circuit or a very poor connection in the cable being tested. Re-check cable connections.

8. Sònrachaidhean

Table of diymore U-18 USB Tester Meter product specifications

Figure 8.1: Detailed product specifications for the diymore U-18 USB Tester Meter.

diymore U-18 USB Tester Meter Specifications
ParamadairRaonFuasgladhCruinneas
Sgrùdadh VoltageDC 4-24V0.00001V± (0.2% + 2)
Sgrùdadh gnàthach0-6.5A0.00001A± (0.5% + 2)
Monitoring Power0-156W0.00001W± (0.5% + 2)
D+/D- Voltage0-3.3V0.001V± (1.0% + 2)
Comas0-9999.99AH0.00001 Ach-
Caitheamh cumhachd0-9999.99WH0.00001 uh-
Cable Internal Resistance0-9999.9 Ω0.000001 tha-
Equipment Runtime99 days 23:59:59 seconds1 diog-
Ùine Clàraidh999:59:591 diog-
  • Meudan: 2.56 x 1.38 x 0.49 òirleach
  • Cuideam nì: 1.41 unnsa (0.04 cileagram)
  • Stòr cumhachd: Battery Powered (internal, charged via USB connection)
  • Seòrsa Tomhais: Ioma-mheatair

9. Barantas

This product comes with a standard manufacturer's warranty. Please refer to the product packaging or contact diymore customer support for specific warranty terms and conditions.

10. Taic

For technical assistance, troubleshooting, or further inquiries, please contact diymore customer support through the retailer's platform or the official diymore weblàrach.

© 2026 diymore. All rights reserved.