Um25C Um25 Usb 2.0 Type- C Color Lcd Tester Voltage Current Meter Voltmeter Ammeter Battery Charge Measure Cable Resistance
- Brand NameVahigcy
- Diy SuppliesElectrical
- Display TypeDigital Display
- Measuring Inductance RangeNo
- Model NumberUm25/um25C
- Measuring Current Range0-5.0000A
- Measuring Voltage Range4-24.000V
- Operating ModeButton
- Ac VoltageNo
- Dc Voltage4-24.000V
- Ac CurrentNo
- Dc Current0-5.0000A
- Operating TemperatureNo
- Voltage Measurement Resolution0.001V
- Current Measurement Resolution0.0001A
- Product Weight23.74G
- Time Measurement Range0-99H59Min59S
- Screen Brightness Setting0-5 Level
- Delay Closing Screen Time0-9 Mins
- Display Screen1.44 Inch Color Lcd Display
- Update Rate2Hz
7：Voltage Measurement 8：Current Measurement
12：Number of the Data Group in use
13：Load Equivalent Impedance
Press the ‘ ? ’ button to enter the interface as shown above:
Press and hold the ‘NEXT’ button to switch Data Group. The USB tester can provide a total of 10 groups of data to save and view. These are numbered 0-9.
With Data Groups 1-9 selected the current mAh and mWh are saved after power off. They will continue accumulating the next time the tester is powered on. When the data group selected is 0 then the current value of mAh and mWh will be temporarily saved at power off. When the device is next powered on these values will be recalled and will begin flashing. When the accumulated mAh exceeds 1 mAh, the previous data will be cleared and accumulation will restart. With a Data Group selected, press and hold the ‘PREV’ button to clear the mAh and mWh.
Press ‘NEXT’ to switch to the Quick Charge Recognition Interface.
Interface 2: Quick Charge Recognition Interface
15：D +: (DP) data positive signal level.
16：D-: (DM), data negative signal level.
The product will automatically identify a device with a supported fast charging mode. At this time the device supports the QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG. (Note: This quick charge agreement recognition model is for reference only, because cell phone updated quickly, it can't be absolutely accurate identification）
Press ‘NEXT’ to switch to the Charging Recording Interface.
Interface 3: Charging Recording Interface
20：Time display：The total accumulated recording time.
21：Capacity/Energy statistics trigger current
22：REC：recording status indicator. ‘REC’ displayed in red indicates that recording is stopped. ‘REC’ displayed in green indicates that recording is in progress. After power on, when the current flowing is greater than the Low Current trigger value. The system automatically begins to record the accumulated capacity, energy, and time elapsed. The ‘REC’ indicator will change from red to green. To set the Current trigger value, press and hold the "Next" button to highlight the value then press the ‘PREV’ button to adjust the value as required. The value can be set anywhere between 0.01A- and 0.30A. (10mA to 300mA). Press "Next" button to switch to the Data Connection Cable impedance Measurement Interface.
Interface 4: Data Connection Cable Impedance Measurement Interface.
The Tester can use differential voltage method to measure the resistance of a data connection cable
23：USB Tester directly connected to the power supply with Voltage and Current values displayed
24：USB Tester connected via a data connection cable with Voltage and Current values displayed.
25：R: Data Connection Cable resistance.
Measurement procedure: First, connect the USB Tester directly to the power supply and adjust the appropriate load current (recommended value 1A) . Press and hold the ‘NEXT’ button to begin recording data. The indicator prompt will stop flashing .
Second, unplug the USB Tester and then reconnect it to the power supply via the Micro USB/Type-C IN data connection cable and adjust the load current to the same value as in the first step. Press and hold the ‘NEXT’ button to begin recording data. The indicator prompt stops flashing and the Data Connection Cable resistance measurement test is completed and the value displayed.
Note: If during the second step the screen turns black, this indicates that the voltage difference is too high and the tester will enter the 4V power-down state. The load current needs be reduced. Then re-start the measurement from the first step. After the Data Connection Cable resistance test is completed, the Tester needs to be powered off and then on again to resume measurement.
Press the ‘NEXT’ button to switch to the Measurement Graphing Interface.
Interface 5: Measurement Graphing Interface
This interface displays the voltage measurement over time in the 4-24V range and will automatically adjust the displayed range in real time to account for voltage fluctuations. And the current measurement over time in the 0-5.000A range and will automatically adjust the display range in real time to account for current fluctuations.
The PC Control Software Installation Instruction -mode: UM25C Note: This product only supports Windows 7 and above.
1 Unzip the installation package
2 Click setup to install
3 Bluetooth connection
3.1 open the bluetooth switch on the UM25C.
3.2 Use the compute to search bluetooth device.
3.3 View bluetooth setting
Select the device connected with bluetooth, view the bluetooth series port COM what PC was using. Efferent direction COM (UM25C’Port’) is bluetooth connection port. (note: at win7 system, select bluetooth device, right-click to view properties, display the following widows, view COM port of bluetooth setting, select efferent direction series port to connect. At win10 system, select bluetooth device, click “more bluetooth option”, view COM port of bluetooth setting, select efferent direction series port to connect.)
3.4 Connect bluetooth:
3.5 When the Bluetooth indicator changes from blinking to static, click “Connect”
4. Function Introduction
4.1 Program interface overview:
1: Basic functions: Previous page, Next pages, Rotate screen,2: Corresponding data group: data group switch (click the corresponding number to switch directly into this data group ), data group data clear 3: Corresponding the main display interface 1: main measurement interface 4: Corresponding the main display interface 3: Data recording interface5: Corresponding the main display interface 2: Quick Charge Recognition interface
6: Corresponding the main display interface 6: temperature unite switch, dual format temperature display
7: Corresponding the main display interface 6: screen brightness, auto screen off time.
8: Corresponding the main display interface 5: Voltage-Current Graphing Interface.
4.2 Graphing and Data Export:
Move mouse over the Voltage / Time measurement graph then right-click and select the following options:
4.2.1: Automatically adjust the X axis:
4.2.2: Export data to the clipboard:
Format : Reference point number on X Axis, Voltage value at that reference point.
Read times - Voltage graph Voltage(V) - Voltage graph Read times - Current graph Current(A) - Current graph
0 23.998 0 0.0002
1 23.998 1 0.0002
2 23.998 2 0.0001
3 23.998 3 0.0001
4 23.998 4 0.0002
5 23.998 5 0.0002
6 23.998 6 0.0021
7 23.998 7 0.0021
8 23.998 8 0.0018
9 24.084 9 0.0018 …
4.2.3: Export data to Excel:
The X scale is adjustable to your preference. You can export up to 120 data reference points, or, only export the current recording data set. Please note, the exported data is only for Microsoft Office Excel.
4.2.4: Export simplified images:
4.2.5: Clear chart:
1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.
1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.