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USB 2.0 Full-Color LCD Display Tester
-Model : UM25/UM25C
Technical Parameter:
Product Model:UM25/UM25C Display screen:1.44 Inch color LCD display
Voltage measurement range:4-24.000VVoltage measurement resolution:0.001V
Current measurement range:0-5.0000ACurrent measurement resolution:0.0001A
Capacity accumulation rannge:0-99999mAh Voltage measurement accuracy:±（0.5‰+2digits）
Energy sccumulation range:0-99999mWh Current measurement accuracy:±（1‰ +4 digits）
Load impedance range:0.8Ω-9999.9ΩTime measurement range:0-99h59min59s
Temperature range:-10℃～100℃/0℉～200℉Temperature measurement error:±3℃/±6℉
Screen brightness setting:0-5 levels Auto screen off time:0-9mins
Voltage graphing range:0-24.00V Current graphing range:-5.0000A
Refresh rate:2HzQuick charge recognition mode:QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG
Product size:71.2mmx30.5mmx12.4mm(UM25C)/71.2mmx30.5mmx11.3mm(UM25)
Product weight:23.74g(UM25C)/19.26g (UM25)(No packaging)；54.56g(UM25C)/50.08g (UM25)( With packaging)
Note:
1. UM25 is no communication version, UM25C is conmmunication version by Bluetooth connection.
2. PC software support PC window (Win 7 and above) and Phone Android (Android 5.0 and above, support 14 kinds language, chinese, english and Russia .... )
3, User manual, PC software installation instruction and PC software and Android APP download link: http://www.mediafire.com/folder/q2b8h079hpywq/UM25
4, For Android APP :
A: APP only support android 5.0 and above .
B: Allow APP to do in the background, not be cleaned.
C: allow APP self-starting.
D: Allow APP stay after screen locked, not be cleaned.
E: for desktop, when you use the bluetooth adapter to make bluetooth connection, Please don’t use the adapter own driver, and use the windows system bluetooth driver, otherwise the module can’t make SSP series port communication. If you have installed the adaptor driver, you can uninstall it and unplug the adaptor, then plug in again, the system will install it automatically.
5. Description video :
APP test and other function introduction :
1.Function interface:
| | | |
| 1 | 2 | 3 |
| | | |
| 4 | 5 | 6 |
1:Measurement Main Interface
2:Quick Charge Recognition Interface
3:Charging Recording Interface
4:Data Connection Cable Impedance Measurement Interface
5:Measurement Graphing Interface
6:Ststem Parameter Setting Interface
The Core Function:
PC Bluetooth Communication
Android Phone APP Control
Quick Charge Recognition
Data Record and Store
Capacity/Energy Detection
Differential Voltage Method Measurement Data Connection Cable Impedance
Voltage/Current/Power Detection
Load connecting detection function (screen auto off, plug the load, screen auto lighting)
Device Layout
A：Micro USB Port
B：Multifunction buttons (4)
C：Bluetooth Switch
D：USB A Female Port
E：USB A Male Port
F：Type-C Input Port (Only VBUS、GND、CC1、CC2 four wires)
G：1.44 Inch Color Screen
H：Type-C Output Port (Only VBUS、GND、CC1、CC2 four wires)
I：Bluetooth Indicator: When connected to the host computer control software, the Bluetooth indicator changes from flashing to steady state. When connecting, the Bluetooth icon is displayed on the screen. (Bluetooth communication version only).
Interface Prompt Representing Functions
1：
2：
Press the key to close the screen
3：
Press the key to open the help interface4： 
Press and hold the key to rotate the screen right
5：
Press PREV to previous page
6：
Press Next to next page
Operating Instructions
When the unit is first powered on the welcome screen is displayed followed shortly by the main interface screen.
Hidden interface: Pressing any button whilst powering on the module will display three options. Option 1 selects the Chinese Interface and option 2 selects the English interface.
The third option is to reset（after reset, system setting data was restored to the factory setting, all the stored data was not reset）.Release the button at the desired selection. Pressing and holding the button after stepping to the third option will exit the hidden interface.
Interface 1: Main Measurment Interface.( As shown below)
7：Voltage Measurement
8：Current Measurement
9：Accumulated Capacity
10：Accumulated Energy
11：Temperature Measurement
12：Number of the Data Group in use
13：Load Equivalent Impedance
14：Power Measurement
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.
(As shown)
Press ‘NEXT’ to switch to the Quick Charge Recognition Interface.
Interface 2: Quick Charge Recognition Interface
5：D +: (DP) data positive signal level.
16：D-: (DM), data negative signal level.
17：Mode display
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 cant be absolutely accurate identification）
Press ‘NEXT’ to switch to the Charging Recording Interface.
Interface 3: Charging Recording Interface
18：Accumulated Capacity
19：Accumulated Energy
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.
:
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.
Press and hold “NEXT” to switch to D+D- graphing, as picture
This interface displays the D+ /D- voltage measurement over time in the 0-3.3V range and will automatically adjust the displayed range in real time to account for D+/D- voltage fluctuations.
Press the ‘NEXT’ button to switch to the system parameter setting interface.
Interface 6: System Parameter Setting Interface
26：Auto screen off time
27：Screen brightness
28：Temperature display C /F
29：Theme background color
30：Theme foreground color
Press and hold the "Next" button to enter into setting state, press “NEXT” button to step through the options of auto screen off time, brightness level, temperature display units, theme background color and theme foreground color. Stop on the value you wish to change then press the "PREV" button to change the setting.
For auto screen off time setting press ‘PREV’ to repeatedly step though the 10 options from 0 to 9 minutes. Default time is 1 minutes.
For the screen brightness setting, press ‘PREV’ to repeatedly step though the 6 options from 0 to 5 where 0 is the lowest brightness level and 5 is the highest. Default brightness is 4.
For the temperature display units, pressing the ‘Next’ button toggles the setting between C and F. default temperature unite is C.
For theme background color, press ‘PREV’ to repeatedly step though the 7 options from 0 to 6 where the color sequence is red, green, blue, yellow, light blue, pink, white and black. Default color is 2, blue.
For theme foreground color, press ‘PREV’ to repeatedly step though the 7 options from 0 to 6 where the color sequence is red, green, blue, yellow, light blue, pink, white and black. Default color is 6, white.
At any setting state, press and hold the ‘Next’ button to exit the settings menu.
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 interface
5: 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:
Note:
1. for desktop, when you use the bluetooth adapter to make bluetooth connection, Please don’t use the adapter own driver, and use the windows system bluetooth driver, otherwise the module can’t make SSP series port communication. If you have installed the adaptor driver, you can uninstall it and unplug the adaptor, then plug in again, the system will install it automatically.
2. after power off, when power on again, you need to select the COM port again. When the bluetooth indicator is lighting, you can connect the PC with module
3, please use windows official version, simple version may lose some part.
4, when communicating, don’t press the button on tester, otherwise there will be some error data
Return Policy
If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service
On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).Wonderful Special UM25C DC USB tester Voltmeter ammeter current voltage meters capacity monitor qc2.0 quick charger Battery Power Bank detector
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