Direct sales 3AHigh-precision step-down module can calibrate the capacity statistics of belts (anti-reverse connection, anti-return, overcurrent protection, constant voltage and constant current,USBPort, crystal shell)

Pre-sales instructions!!!USBPortal output voltage range can be adjusted1-24V, Not absolutely5V, AccessUSBWe verify before the equipment, so we do not guarantee the loss caused by the loss; the delivery of the copper column screws such as the acrylic heat sinking tablet with the acrylic heat sink, the module isDCDCDC to DC step-down module, AC current that cannot be input directly to the transformer; this model is a step-down module, and the input voltage must be higher than the output voltage2VIf the output voltage cannot be adjusted, it may be because the position of the potentiometer rotates is higher than that of the input voltage.CVTwenty laps of the potentiometer look at the output voltage change.
1.Baby highlights:
1.1.It is convenient to adjust, the voltage current is adjusted to a long -handle knob without tools; 1.2.High -precision can be calibrated, you can calibrate the input output voltage output current, and the voltage accuracy is reached0.01V, Current accuracy0.001AEssence
1.3.All kinds of protection, anti -counterpart--Do not burn in the back, anti -inverted irrigation--Pick up the battery directly, do not worry about the battery inverted burning module, no two -polar pipe, overcurrent protection--The output is not burned, and the battery is safe;
1.4.AttachDC5.5Input port, withUSBA adjustable voltage output interface;
1.5.Five parameters such as capacity display, input, output voltage display, output current display, power display, capacity display;
1.6.The output ripples are very small, the output bandLCFilter.
2.Product parameters:
2.1.Input voltage:5-27V(The input voltage needs to be higher than the output voltage2VIf you want to output5V, The input voltage must be in7VAbove; if the output voltage cannot be adjusted, you first adjust it counterclockwiseCVIn the end.
2.2.The output voltage:1-24V(Output voltage higher than24.5V, Automatically turn off the output, displayOV,After lower the output voltage, pressONOFFKey to solve.
2.3.Output current: maximum output3A Around, the suggestion is recommended2.5AIt is used internally and solves the heat dissipation problem by itself when the heat is large. The output current in constant voltage mode is adaptable to the load size and is not adjustable.(The adjustable current is the largest3ALeft and right, output current exceeds more3A, Automatically turn off the output, displayOC,After reducing the load current, pressONOFFKey to solve)
2.4.Output Power: Less than30W (Output power is greater than30WWhen, automatically turn off the output, displayOP, Reduce the load power, pressONOFFKey to solve)
2.5.Voltage display: resolution0.01V, Factory accuracy±0.1Vabout(If the accuracy is high, manually correct it after comparing the standard voltage table)
2.6.Current display: resolution0.001A,Range0-3AScene, factory accuracy±0.05ALeft and right; output current less than0.05AThe display error is large,10-40mASmall currents inside cannot be displayed(If the accuracy requirements are high, manually correction can be manually compared with the standard current table. The output current is greater than1AThe time calibration is more accurate)
2.7.Capacity display: resolution0.001Ah,Range99.99Ah(Long press‘-&The rsquo; key is cleared, it will automatically save after power off, and it will automatically accumulate after power on.arrive99.99AhHou saturation, you need to clearly clear zero.
2.8.Conversion efficiency: less than95%
2.9.Working current:30mAabout
2.10.Enter anti -connection protection: Yes
2.11.Output end anti -inverted irrigation: Yes, you can directly connect to the battery and charge, no need to add a diode (There is inside the module output end1KOhm is equivalent to a fake load. After the charging is over, the battery will lose the battery power. If you mind, please connect a diode in the output end..
2.12.Short -circuit protection: Yes
2.13.Size: Long*Width*high 73.4mm*55.54mm*30.5mm
2.14.weight: 67.8g(Including accessories, heavy accessories41.5g.

3.Function Description:
3.1.button
“+”Key: Press for a long time—— Enter or exit the accuracy correction interface; short press—— the correction value needs to be added by one unit;
“-”Key: Press for a long time—— clear the capacity count value; short press—— the correction value needs to be reduced by one unit;
“SELECT”Key: Press for a long time—— Switch between current, power, capacity display; short press—— Switch between input voltage and output voltage display;
“ON/OFF”Key: Press for a long time—— Set the default output of power-on is turned off or on; short press—— controls the opening or shutdown of the output.
3.2.Potentiometer knob
The left side is the current regulator potentiometerCC, Rotate clockwise to increase the setting current. When the load current reaches the set current, enter the constant current state (Note that the output current can not be increased by adjusting the potentiometer. Under constant voltage, the output current depends only on the load, which is based on the load.);
The right side is the voltage regulator potentiometerCV,Rotate clockwise to increase the output voltage (ThisIn the antihypertensive module, the input voltage needs to be higher than the output voltage2VIf the output voltage cannot be adjusted, you first adjust the clockwiseCVIn the endTo.
3.3.Indicator light
CC—— Hengliu indicator light, light flowing (red);
Full—— battery full indicator (green), if the constant current value is set2A, Charging current reaches0.2ATurn the lights below,FullThe indicator light is on,ChargeIndicator light;
Charge—— battery charge indicator (blue);
ON—— output status indicator (green);
3.4.Input and output port
Input—— left,DC5.5mmSocket or5.08mmThe terminal is used as input;
Output—— on the right,USBEloquence5.08mmThe terminal can also be output at the same time (pay attention!!!USBThe voltage of the mouth is not absolute5V, Are directly connected to the terminal, the adjustable range1-24V.
4.Accuracy calibration method:

Input voltage calibration—— long press“+” key, enterSETInterface, currently displayed as inputINVoltage, short press“+&rdquo“-&After adjusting the key, press for a long time“+” key exitSETinterface;
Output voltage calibration—— long press“+” key, enterSETInterface, currently displayed as inputINVoltage, click“SELECT”Key press, switch to displayOUTVoltage, short press“+&rdquo“-&After adjusting the key, press for a long time“+” key exitSETinterface;
Output current calibration—— long press“+” key, enterSETInterface, currently displayed as inputINVoltage, click“SELECT”Key press, switch to displayOUTVoltage, click again“SELECT”But press the button, switch to the display output current interface, short press“+&rdquo“-&After adjusting the key, press for a long time“+” key exitSETinterface.Notice:Current is greater than1AThe time calibration is more accurate; the output current is less than0.05AThe display error is large, and the output current is less than10-40mAIt may not be displayed.
5.Precautions:
5.1.Module inputIN-Forbidden and outputOUT-Short connection, otherwise the constant current function will fail.
5.2.Please ensure that the power supply power supply is greater than the power required for the output load. When the module is hot, please reduce the power use!
5.3.Please read the description of the product carefully before use, and the damage caused by improper use will not be compensated.