multicomp pro MP780426 User manual

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USB Tester
User Manual
Part Number: MP780426 & MP780427

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1. Introduction
The second generation USB testers can inspect USB chargers, portable power sources, data cables and other electronics
charging devices. MP780426 / MP780427 measures output voltage, current, energy, capacity, circuit equivalent resistance,
D+ and D-voltage of USB data cable, and more. This series is designed to be precise, reliable, stable, and portable. They are
great tools for applications such as manufacturing verication, engineering testing, and DIYers.
2. Safety Regulations
MP780427 internal load will stop when the input voltage exceeds 13V.
MP780427 overheat protection: If internal load working temperature exceeds 65°C, “HOT” will blink and loading will stop. After
temperature drops below 45°C, loading will restart.
Please read this manual carefully for operation and safety before use.
Users should not open or repair the device.
Please keep device out of reach of children.
Should this device come across any issues, please do not hesitate to contact local dealer for assistance.
The device conforms to EN61326-1:2013, EN61326-2-2:2013 standards.
3. Operations
3.1 Connecting Input/output
a) Each USB tester is marked with Input (side with extension cord) and Output.
b) MP780426 DUAL can only be connected with the same type of input/output port at one time
(i.e. type A input and type A output, or type C input and type C output)
3.2 Input Voltage Conrmation
Insert USB Input port into output port of chargers or portable power sources.
Check if displayed voltage is within working range. If output voltage exceeds allowable range, please stop using it immediately.
A voltage reading exceeds 24V, or a current reading over specied current will cause device to automatically disconnect and
“OL” will appear on screen. A warning symbol “LO” will appear when voltage is below 4V. Input voltage must not exceed 25V.
3.3 Electronic Products Inserting
After conrming the output voltage is normal, users can charge or test electronic products by inserting the charging cable into
output of device.
3.4 Buttons
a) MP780426 DUAL
i. Short press MODE button to switch screens and view different parameters.
Long press MODE button to clear current data.
ii. Long press READ button to save current parameters in M0 ~ M9. Users can short press READ button to browse, select the
target data and short press MODE button to switch screens and view their parameters.
Browsing state will automatically return to the monitoring mode after 6s without operation, long press READ button during
browsing state will clear all stored data.

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Features Description MP780426 MP780427
Input & output ports USB Type A √ √
USB Type C √
Voltage Range 4.00 ~ 24.00VDC, resolution: 0.01V √ √
Current range 0.05 ~ 3.00ADC, resolution: 0.01A (Type A) √ √
0.05 ~ 5.00ADC, resolution: 0.01A (Type C) √
Capacity 0-99999mAh, resolution: 1mAh √ √
Energy 0-1000Wh √ √
Circuit equivalent resistance measurement 1-480Ω √ √
USB data cable voltage (D+, D-) 0-3.30V √ √
Data storage 10 sets √ √
Electrical load 0.50A, 1.00A, 2.00A, 3.00A √
Maximum timing 99 hours, 59 minutes, 59 seconds, resolution:1s √ √
Supports fast charge protocol
Supports USB2.0 data transmission and
QC1 .0/2.0/3.0 fast charge protocol (Type A) √ √
Supports USB2.0 data transmission and
QC1 .0/2.0/3.0/4.0 fast charge protocol (Type C) √
Certication CE √ √
5. Maintenance and recycling
Do not keep this instrument in high temperature and humid environment for long periods.
Please keep surface clean with damp cloth and dry ii in time, never clean it with corrosive liquids.
Waste dispose: please do recycle damaged instruments and packages according to environmental protection requirements.
b) MP780427 LOAD
i. Short press MODE button to switch screens and view different parameters.
Under load state, long press MODE button to rst turn off load, if no load is present, long press MODE button will clear
current data.
ii. Short press LOAD button to start load effect with the following sequence:
0.50A→1.00A→2.00A→3.00A→stop→0.50A (repeat)
iii. Press MODE and LOAD buttons together to enter query state, then short press LOAD button to browse data, press MODE
button to query different data parameters.
iv. Long press LOAD button in query state to clear data. Long press LOAD button in load state to save a set of data.
(M1L records internal load data, M1 records non-internal)
4. Specications
Important Notice : This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for
the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change
without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness,
any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make
any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or
where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its
negligence. Multicomp Pro is the registered trademark of Premier Farnell Limited 2019.