Download Instruction manual: Measuring voltage and current: USB plug into

Instruction manual:
Measuring voltage and current:
USB plug into any USB port on, female plug cell phones and other devices, read out the voltage
and current parameters directly
Mobile measuring power output capacity and efficiency:
With resistance dummy load is recommended to use, USB male plug portable power, female
insert dummy load, until the fully charged mobile power discharge end undervoltage shutdown.
The next show is the mobile power output capacity Ah and Wh when opening the machine.
ZY1230 edition accelerate the use of smart identification Charging:
If it is the official charger, such as Samsung Chargers Apple, or via computer USB, charging giant
slow speed may even refuse to charge, then you can set the smart identification accelerated
charge, switch to function 3, there are icons that function, press Lightning icon button switches to
battery (fast charge mode) can be. Note that it is impossible 1A charger output, energy
conservation 2A oh.
Mobile computing power battery capacity and efficiency:
Ah data x output voltage ÷ ÷ battery voltage mobile power battery efficiency = Ah (output
voltage is typically 5V, you can view the average voltage capacity of the table of the second
screen, the battery voltage is generally according to 3.7V, the general efficiency by 85-90%, I shop
in high-end mobile power supply by 95%), or data ÷ Wh battery efficiency = Wh (it is easier to
calculate the measured Wh) battery Wh ÷ battery voltage = battery Ah, Ah ÷ 1000 = mAh. If
known internal battery capacity and voltage, power efficiency can be calculated move: (Ah data x
output voltage) ÷ (battery capacity x battery voltage) = mobile power efficiency, or data ÷
Wh battery mobile power efficiency Wh =
Measuring power adapter / charger efficiency:
With meter (distribution box in your home that goods) and false load. Then only after the meter
under test charger, USB charger output connector table and a dummy load, running for some
time, check the accumulated Wh USB table data, then check how much electricity meter walk, 1
kWh = 1000Wh, with USB meter readings ÷ Changes = accurate meter readings charger
efficiency. (In fact, the number of how many laps meter rotary table is more convenient, generally
will be marked around the meter is 0.00x degrees)
Battery capacity test:
Use TP4056 and other linear charging circuit through this capacity table completely empty
battery to charge to complete the full capacity reading on the battery capacity, the use of this
method can also charge the phone about the measured capacity (possible general use USB cradle,
because the phone is not linear charge, and standby power consumption interference)
Tiny device measuring current and standby current:
Low resolution 0.1mA precision current, easy to detect almost all the work of the current
mini-USB device / standby current, such as card readers, wireless mouse receiver, Bluetooth or
LAN adapters.
Trickle charge time measurement muting function / capacity:
After most of the phone is full there is little trickle, if not shielded trickle will always increase the
capacity, interference testing. After setting the trickle charge current when the shield is less than
the set value, capacity and accumulated charge time will not increase to more accurately
measured charging time and filling capacity. Set to 0 to close trickle shielding.
Measuring the electrical equipment detects the power output capacity of the current waveform:
Speed ??current curve drawing (the fastest one second three times) can be used to draw on the
power supply device detects the current waveform after power. Developing adaptive current
electrical equipment essential tool!
Data is cleared:
Function 1 and Function 2 interface (that is, the first line shows the current; voltage; group that
interface) Press and hold the button, the first will jump to the next group, continue to hold for a
few seconds, it will jump back to the current group and zero the current group, to complete
zeroing operation
View:
Parameter interface long press the button to switch to the next group
Fast screen rotation:
D + D- voltage display interface and display large font voltage and current interface, long press
the button to display the direction of rotation
Power Status:
Powered via USB male, display about one second to enter the parameter interface LOGO
Display parameter switching on / off the display: