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LCD Screen Mini Creative Phone USB Tester Portable Doctor Voltage Current Meter

(15 customer reviews)

$16.79 $15.79
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Description

 

• This test can be a USB charging current, voltage, discharge capacity,  intelligent devices.
• It can be very easy to find digital device charging problem.
• Tester three dimensional size 60 * 28.5 * 15mm (without cable), about 15cm  length of the line.
• The only button on the tester is used to view and test data switch, the  tester can store 10 groups of test data

Specifications
1. Input Voltage: 3V – 7V
2.Input current: <3.4A
3. Parameters that you can test: Voltage of battery. Current of battery, value of discharging capacitor.
(Total ten parameters)

4. Communication function: Yes
5. Parameters adjusting function:Yes. Equipment for parameters adjustment: One electronic load,
one constant current  source. Voltage of constant current source should be set to 8.5V
There  are 3A, 2A, 1A and 0.3A models for current adjusting.

Here is a example for 3A:
When you set electronic load at 3A model, the current will be adjusted step by  step.
It will cost you about 10 seconds and you can see the result changing procedure in the LCD screen.
When you see the 3A result shown in LCD screen, the  adjustment process is finished. You can shut
off the electronic load and the  parameters will be saved automatically.

6.Clean the data: Push the button until the parameters changed to next sets of  parameters. Then release the button.
Then the next sets of parameters will be started and they will start from zero.

7. Check the parameters: Quick beat the button double times(within 0.5s), then  it is checking model.
The LED background will be flash.Then you can see the next  set of parameters in LCD screen. Quick beat the
button double times again, you  release the parameters checking model. LED background be be light with flash.

8. Over voltage or under voltage: An arrowhead will be shown in LCD screen and  LED background will flash.
Push the button and LED will be light without flash.

 It will last 30s.
9. Turn on model: The LCD screen will show all parameters within 1s when you connect power supply
by Micro USB or male plug of USB with wire.(It is to check whether the LCD screen  is good or not).
Then you can see the parameters used last time(capacitor and  which set of parameters). You also can
see the current voltage, current and over  voltage or under voltage. Please see following illustration.

USB output port can be connected to a data line, a discharge resistor or the  like cable devic
comprising a data communication function, the data does not affect the data transmission line.

Test specifications, voltage can not exceed 7V, current can not exceed 3.5A.

 

NOTE
When the voltage is lower than  4.7V on the instrument display or higher than 5.3V,
the LCD screen will flash, it does not affect the use.

1VA010 1VA010 24

36789VA010 3

Additional information

Weight 0.03 oz
Dimensions 1 × 1 × 1 in
Dimensions

normal

Model Number

1

Operating Temperature

normal

Brand Name

JUANJUAN

Display Type

Digital Only

DIY Supplies

Electrical

Accuracy Class

normal

Power Supply

usb

Measuring Range

normal

15 reviews for LCD Screen Mini Creative Phone USB Tester Portable Doctor Voltage Current Meter

  1. A***v

    two weeks delivery

  2. V***v

    order shipped in 17 days, bundle full, suitable description, (plastic bag) is not damaged, workmanship good, performance verified вскрытии when packaging, three parameters (voltage, current and capacity) shows correctly. under light angle a two segments (not operability сказывается) thank you very much honestycentre’s store, aliexpress shipping standard, ems, aliexpress russia post

  3. A***n

    work perfectly. display смещен just only.

  4. M***z

    EVERYTHING, arrived well packed, the problem free ONE SCREEN Is than had smudge stick the display. free shipping selling figment sent 5 days after payment. and works. the detail Is tardó More two months free ride clothing.

  5. R***c

    good goods. seller recommend. дошло. received via

  6. N***v

    device is working as excellent written. to seller.

  7. S***a

    the standard usb hub

  8. R***y

    less than пришёл month. volts, амперы shows current considers. all in good, advice

  9. J***n

    the item has been very fast mail wine 7 days not come post normal goods.

  10. A***v

    only trackable track china. tester working, satisfied overall

  11. B***b

    work, шла package but very long.

  12. V***a

    standard as

  13. F***a

    Excellent international AliExpress seller, highly recommended. Thanks from Chile!

  14. Y***n

    Thank you friend! Everything is wonderful!

  15. A***v

    пришло в срок, упакованно в пакет с пупыркой. продавца рекомендую.

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