Индикатор емкости аккумулятора QC 2.0 QC3.0 USB TYPE амперметр вольтметр кулометр тестер дисплей уровня ремонта электроскутера Включить.

battery capacity indicator QC 2.0 QC3.0 USB TYPE amperemeter voltmeter coulombmeter tester battery level display ebike repair tools

this Is for customers who need to indicate/monitor detailed battery condition such as when you repair an electric bike, scooter or use on your soloar board, it can test battery condition for any battery, lithium battery or lead acid battery ......

this model is colored screen 

you can please choose common model or with bluetooth one 

1.   Basic parameter

Input voltage :4v-24v DC

CURRENT input:  +/-3A

VOLTAGE resolution ratio: 0.0001v

Current resolution ratio: 0.0001A

Capacity accumulated: 0-99999Ah  0-99999Wh

Precision: voltage 0.2%+2d  current 0.1%+2d

Display screen : 1.3inches  128*104 dot matrix colored TFT LCD display

Refresh speed: 0.36second/time

Current sampling resistance: 12milliohm

Line loss: about 17 milliohm, include USB connecting resistance about 42milliohm

Stationary power consumption: about 6Ma,  light on backlight is about 10Ma.

Memorizer : ferroelectric FRAM technology

Lifetime : 10 billion times

Memorize mode : capacity change will be stored + loading balancing technique 

Features of ZY1270

It has colored TFT liquid screen, high resolution ratio. Can indicate more information, larger letters, and easy to read.

It has two usb port, one can support accelerated charging, can make mobile phone full speed charging when inserted into computer and can protect mobilephone from virus when charging on public computer.

On front side the one with shining “z”logo is accelerated charging port. (but it cannot change the voltage. It is suggested used when charging mobile phone on computer or charging on unofficial mobile charger. )

The backside with USB logo is direct port.

The model with Bluetooth: can connect with computer or mobilephone so that you can send out the testing data, and draw a curve graph on computer or mobile phone.

The price includes iron box package and white frame printing board.

parameter:

size : 75*30*15mm

weight : gross weight with iron box 55g, net weight 22g.

voltage scope: 3.5-24v, if not in this scope will lead to precision reduction. withstand voltage 28v.

voltage resolution ratio: 0.0001v . 18bit

current scope:average is +/-0-3A , maximum momentary CURRENT 24A,  if keep >3A, WILL break the USB mouth. 

current resolution ratio: 0.0001A (0.1mA 18bit) 

capacity scope: 0-99999Ah 0-99999Wh

capacity resolution ratio: 0.0001Ah 0.0001Wh

EXPLANATION TO ALL FUNCTIONS

• ACCELERATED CHARGING  : can insert to usb port of computer or non-original usb charger, turn the charging identifying signal to original charger, then make the phone consider than it has been inserted to original charger, accelerate the charging speed. But this function cannot change output voltage, and canot enlarge output current so cannot make common charger to QC2,0 Charger.

•   Charger type: can insert to unknown USB port or usb port of mobile power supply, to check the charging identification signal of this USB port, then identity which mobile phone you can charge for. When take this function, please don’t connect phone, because mobile phone will disturb identify.

• D+D –Voltage: means the voltage of data line, base on this, most charger type can be identified. The USB port charging identifying mode can be judged referring to this voltage.

• Plastic shell :  with this plastic shell the coulombmeter can be dustproof, and will not disturb working when your hand touch the circuit. This PCB frame version has no shell, but the 3 layer board structure will protect the core circuit very well, and heatdissipation effect is good.

• Port: there are USB3.0 and USB2.0 VERSION. USB3.0 is compatible with usb2.0.  USB3.0 can be used to test the working current of USB3.0 facility. USB2.0 PORT is much more better to test the working current of common charger and USB2.0 FACILITY

• Voltage: we suggest the input voltage scope same with the rated voltage. If lower than rated voltage maybe cannot work. If higher than rated data the precision will be lower then the facility is burnt.

• Current: we suggest the input current be the rated data. If larger than 3A, it can still display but the usb port cannot bear the max current, it will be burnt. The max of circuit board sampling resistance 6A. if want higher current can change to external sampling resistance, max is 20A.

• Resolution ratio: means the minimum voltage or current capacity variation it can read. The lesser the resolution will be higher. The voltmeter will can distinguish more subtle voltage current capacity variation.

• Precision: the final reading percent precision and the last reading bouncing scope.  The lesser percent, the higher precision. The less bouncing scope the reading will be more stable.

• line loss: include current sampling loss and USB contacting resistance loss. Less this data means the less voltage loss when current pass this USB.

• Ampere capacity: ampere per hour, 1A current hold for 1 hour then is 1Ah, 1Ah=1000mAh, this is the most commonly used capacity unit in china mobile power and battery. You will often use it when test the battery capacity and mobile power capacity.

• Watt capacity : watt per hour, 1 watt hold for 1 hour then is 1Wh, 1000Wh=1Wh(du IN CHINA). MORE accurate than Ah, so is universally used whole world. Because power=voltage*current, so Ah*voltage=Wh. Use this data to test mobile power capacity will be more accurate. And use together with power meter you will can test efficiency of charger.

• Charging time: when charging current is larger than preset shielding current, the time will go running. Take this function you will can test the charging time to charging the facility full. And can also used to accumulate facility working time.

• Temperature: the temperature of built in chip. If no loading then no heat, then reading will near to air temperature.

• Memory: now all version/model are FRAM storage. Approximate to An infinite number of times 10000000000times erase life. Then can make sure to store one capacity per second. Now USB meter take this higher end storage only.

• Power consumption stationary: default setting the self consumption current when screen is on. This meter takes 32bit processer+external ADC. 6mA only –the screen opening consumption and 4.5mAh screen turn off consumption.

• MicroUSB testing function: use together with constant current power, will can test line resistance ,The pressure drop of the line loss and so on. 

price is for sample , for quantity order please leave message 

user instruction

to check voltage and current:

insert the USB plug to any usb port, the USB connected with mobilephone and so on, directly read the voltage or current.

Test mobile power output capacity and efficiency:

we suggest you use it according to dummy load resistance. Usb make plug connect with mobile power, female base insert into dummy load resistance. Until the mobile power is discharged empty and off on undervoltage point. Next time when you open this device, the capacity indicated is mobile power output Ah and Wh.

For model ZY1270 , when use intelligent identification and accelerate charging:

If your device is not official charger, such as you charge for iphone use a Samsung charger, or charge by computer usb port, the charging speed will be slow, or charging is refused. At this time you can please insert this model upper usb port to accelerate charging. Please be attention, for 1A charger the output cannot be 2     A.

TO CALCULATE BATTERY CAPACITY AND EFFICIENCY OF MOBILE POWER

Ah*output voltage /battery voltage/efficiency=mobile power Ah(usually the output is 5v, can check average voltage on second screen interface of capacity meter. The battery voltage is 3.7v. Efficiency is 85%-90%. Some higher end mobile power in our store can reach to 95%)

Or Wh/effiency=battery Wh. (so Wh is more easier to test).

Battery Wh/battery voltage=battery Ah. Ah/1000=mAh. If built in battery capacity and voltage is known, then can calculate mobile power efficiency. (Ah*output voltage)/(battery capacity*battery voltage)=efficiency of mobile power. Or Wh data / battery Wh=efficiency of mobile power.

Test efficiency of power adapter or charger

This should work together with efficiency meter(KWh mete) and dummy load efficiency. The meter back connects only with charger that you want to test. The charger output connects with usb meter and dummy load resistance. After running for a while, check the USB meter accumulated Wh data and then check how many KWh there is on efficiency meter. 1 du=1000Wh. USB meter data/ efficiency meter data=exact charger efficiency.

Test resistance of data link/ USB tieline/ other USB METER

THIS function should match up with dummy load resistance.

First insert USB meter to power, switch to test cable resistance function. Then insert the dummy load resistance and adjust to current which need to be tested (suggest it 0.5A~2A). long press the button to record reference voltage and current after readings become stable. Then take off USB meter, insert the data link/tieline/other usb meter to power, and insert zy1270 to cable which waiting to be tested, dummy load resistance adjust to current which same with reference current. You will can read resistance of cable which waiting to be tested and pressure drop of line loss under testing current.

Test battery capacity

Take linear charging circuit such as TP4056 to charge battery which is totally empty to full by this USB meter, the capacity data will be battery capacity. By this way you can also test mobile charging capacity (better to use USB base charger. Since usually mobile is not linear charging. And standby mode will also influence the result )

TEST current and standby current of small facility

Its resolution ratio is 0.1mA, easy to test working current and standby current of small USB facility, such as card reader, wireless mouse receiver, Bluetooth or network interface card.

Take trickle shielding function to test charging time and capacity

For most mobile phone, after fully charged, there will be a trickle current. If you donot shield it, the capacity will keep increasing and will influence the test result. After setting the trickle shielding function, capacity and charging time will not increase when charging current is less than setting data. So that you can test charging time and capacity charged more accurately. Set it 0 will shut down trickle shielding function.

Test current waveform of electric equipment power output capacity

High speed current curves drawing function (fastest speed 3times per second) can draw current waveform of testing power supply after power on of electric equipment. This is a best tool if you want to develop electricity equipment of adaptive current.

Data zero clear /reset

When screen goes to Function 1 and function 2 interface(means first line indicate current, voltage interface) long press button and keep it, it will go into next group first, keep then for seconds, will go into current group and clear this group. You finish the zero clearing operation.

Data checking

When goes to data interface long press button will change to next group

Screen rotation

When screen goes to D+D voltage interface and large letter voltage current interface, long press button will rotate and show direction.

Machine start mode 

Connect power by USB male connector, screen indicates LOGO for about 1 seconds, then will go to data interface.

Indicate data exchange /shut off indication

At this data interface short press the switch button will exchange data /function indicating and shut down screen

Restore setting

When screen indicating logo, press button until it shows setting. Short press switch to 07-this is restore setting. Long press will restore to factory setting. Be attention please factory setting is not calibrated. Better not to use this function. 08 is backup copy by storeowner. Better not to use 08 to cover right calibrated data.

Data calibration function setting

Need an Electronic load tester and an adjustable power supply. Press button then connect the power supply, after 5 seconds, indicating setting then release it. Screen indicates 10, down part indicates version 2.0.

Short press then switch to indicating 00, adjust power supply to 5v, first donot connect to any load resistance, after the voltage reading becoming stable then long press button, the system will automatically record current voltage –standard 5v.  short press then switch to indicating 01, electronic load CC constant current mode, adjust to accurent 2A, connect USB female port, after 1 seconds the down part current reading becoming stable then long press button, system will automatically record present current – standard 2A.   after setting, long press 10 or shut off power , machine will automatically store setting.