File Download Way
1, User manual, PC software installation instruction and PC software and Android APP download link : http://www.mediafire.com/folder/9r973dly7uvui/UD24
2, IOS APP: search E_test on iphone APP store to download
3. Android APP: https://www.mediafire.com/file/0jiio43c0vuu1wx/U_Meter-Phone_mobile.apk/file
4, Android APP: search E-test at Google play to down load
Product description
It can be used as a USB tester or as a DC voltmeter. It is a high-end product created by the wisdom of the industry!
UD24 2.4"inch USB tester DC5.5 Type-C digital voltmeter ammeter power bank voltage detector volt QC PD electric meter for APP
Voltage measurement range: 5V~32.0V
Current measurement range: 0.00~ 5.10A
Timing time: 999 hours 59 minutes 59 seconds
Input interface: Type-C/Micro USB/USB
Output interface: Type-C/USB
Timing charging reminder setting: countdown 24 hours any set value
USB D+ voltage range: 0V~2.99V
USB D- voltage range: 0V~2.99V
Refresh time:> 500mS/ times> 500mS/ times
Measurement rate: about 0.5 times/sec
Alarm mode: siren sound + display prompt double warning
Display type: large screen with true color digital display with heavy cost 2.4 Chinese and English measurement interface
Self-consumption current: <0.02A
Working temperature: -10~+60°C -10~+60°C
Working humidity: 10~80 (no doubt) 10~80 (no doubt)
Working pressure: 80~106kPa
Pure digital interface, 360° rotating display
Short press the "M" button or the¡°OK¡± button to display the pure digital measurement interface, then long press the "M" button or the ¡°OK¡± button, the digital display measurement interface will rotate clockwise or counterclockwise
UD24 Startup screen and function test interface
UD24 button operate description
1. Short press the "M" button or the ¡°OK¡± button to display the pure digital measurement interface
2. Short press the "M" button or the ¡°OK¡± button to display the pure digital measurement interface, then long press the "M" button or the ¡°OK¡± button, the digital display measurement interface will rotate clockwise or counterclockwise
3. Press and hold the "M" button and the ¡°OK¡± button at the same time to cycle through the function display interface (Battery capcity/DC power detector >> USB Meter >> USB TRIGGER QC2.0 >> USB TRIGGER QC3.0 >> USB QUICK CHARGE)
4. On the main interface, long press the "M" button, the corresponding value will flash, and then adjust the value by short pressing ¡°+¡± or ¡°-¡± minus. During the flashing, you can continue to press and hold the "M" button to adjust the following numbers, the flashing stops automatically saving and Display OK
5. In the state of no power, Hold down the ¡°OK¡± button or "M" button Do not release, then insert the USB or DC power supply to power on, and enter the product setting background£¬Release the button, then you can adjust the value inside!
USB and Type-C Test Application Range
Connect and test various USB and Type-C interfaces and various battery devices
Multi-port design-multi-use and multi-play
UD24 line resistance measurement function Support Android/Type-C cable resistance detection
According to the connection method shown below, first measure the current battery no-load voltage, and then add the output load. At this time, you can read the current battery internal resistance
The internal resistance calculation formula of this table: (no-load voltage-loaded voltage) / current current = battery internal resistance
Battery internal resistance detection function
Connect and test various DC power supplies and equipment Multi-portion design, one thing, multi-use, multiple play
Battery internal resistance detection function
According to the connection method shown below, first measure the current battery no-load voltage, and then add the output load. At this time, you can read the current battery internal resistance
The internal resistance calculation formula of this table: (no-load voltage-loaded voltage) / current current = battery internal resistance
Battery power percentage
The meter can freely set the battery type according to the user in the background, the corresponding full voltage value and discharge voltage
If there is no low value, the system calculates the percentage according to the threshold set by the user, and then changes the color of the percentage through the battery symbol
Display (more than 30% green, less than 30% yellow, less than 10% red);
When the display range is between 1% and 100%, the POWER red light on the panel lights up, and the relay output interface outputs at this time
The level is used to control the relay to connect the current path. When it exceeds the range of 1%~100%, the red light goes out at the same time
The plug electric appliance outputs a low level to disconnect the current path to ensure the safety protection of the battery for charging and discharging.
People avoid the risk of damaging the battery due to overcharge and overdischarge, and it can also be used for other purposes of overvoltage and low voltage disconnect protection.
Voltage accuracy evaluation
Precision testing of large professional instruments
Current accuracy evaluation
Precision testing of large professional instruments
Version number and upgrade description
Operating instructions: When the power is not on, press and hold the OK key, insert the USB charger, and enter the background
We hereby declare that both V5.7 and V1.2 are our products, and V6.0 is the latest firmware product
The upgrade or change of the version number is only an upgrade function and does not affect your use!
V5.7 version is old firmware and cannot be upgraded via USB IAP
V1.2 is a new firmware, which can be upgraded through USB IAP
Very few customers can`t understand the version number and malicious disputes. If you mind, please don`t buy. Thank you!
Upgrade V1.2 to V6.0, address: https://www.mediafire.com/file/h94ax0vuzy1gjx3/UD24_Upgrade_firmware_version_6.0.zip/file
Enter the system background mode
Note: Do not press and hold the M key to insert the USB charger. This is the factory calibration mode. After about 30 seconds, a white screen will appear, and the power will be cut off again. It is normal to enter the product test!
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