Reminder:
The photo is used to demonstrate the working principle and appearance of the product. So we chose one of the parameters to take photos, showing that the resolution can not correspond to all specifications. The corresponding product's resolution is based on the number in the webpage introduction.
Our default shipment is a blue font screen. If you need white, you can leave a message to the owner.
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Technical parameters
Voltage meter range: 00.00-500.0V
Current meter range: 200A
Shunt not included if you need buy Shunt . you can buy the link //www.aliexpress.com/store/1679052/search?origin=y&SortType=bestmatch_sort&SearchText=DC%20Current%20Shunt%20Resistor
Measurement power: 0.000W-150KW [decimal point and unit automatically adjusted according to actual results]
Real time power: 0.000AH-999.9AH [decimal point automatically adjusted according to actual results]
Accumulative energy: 0.000AH-99999AH [decimal point automatically adjusted according to actual results]
Cumulative watt time: 0.000WH-99999WH [decimal point automatically adjusted according to actual results]
Temp measurement: -15.0 degree to 65 degrees [resolution 0.1 degrees]
Time shows: 0-99 hours and 59 minutes
[Load timing]
Automatic memory: 1 This time of electricity, 2 Add electricity many times. 3 Multiple additive energy
Internal resistance of the voltmeter: 120KΩ
Internal resistance of the ammeter:1A0.1Ω 1A25mΩ 5A10mΩ 10A5mΩ 30A2.5mΩ 50A1.5mΩ 100A0.75mΩ 200A0.375mΩ
Working voltage: DC5-12V *1
Measurement accuracy: 0.2%（+/-2）*2
Operating temperatur: -10℃~60℃
Working current: <15mA
Refresh rate: 2 times/second
Communication function: provide TTL interface output data.3.3V5V compatible.
Display mode: 0.96 OLED
Overall dimensions: 48MM*29MM*21MM(L*W*H)
Opening size: 45.5mm*26.5mm
Lead wire length: 13CM
*1:The instrument can work in dc4-28v, but it will be hot when it is above 15V and reduce the accuracy and life. Please use 5-15V power supply.
*2:Error calculation method, the percentage of maximum range, plus the number in brackets 
Voltage:Voltage display
Current:Current display
Power:Power display
Capacity:
Capacity shows that the result of the last measurement is displayed first every time the power is connected. When this time exceeds 1mAH, it begins to be recalculated.
Temp:PCB temperature measurement, about two degrees higher than room temperature
Cumulative capacity:
The result of the accumulative amount of electricity for all measurements, If it is not cleared, it will always be accumulated.
Cumulative watt hour:
The results of the accumulative energy of all measurements.If it is not cleared, it will always be accumulated.
Time:Load time
Alarm switch :
This function is only for professional use.Used to make an instrument output a voltage signal and to control other devices.
- When the set is <ON>, If the voltage or current alarm condition realized, the output is 3.3V. Otherwise output 0V
- When the set is<OFF>, the output voltage is always 0V
Limitch switching:
This function is only for professional use.
- When set to <C.VO>,Turn the operation channel into a voltage.
- When set to <C.CU>,Turn the operation channel into a current
High:
This function is only for professional use.
Limitch switching=C.VO The value shown here is the upper limit of the voltage.
Limitch switching=C.CU The value shown here is the upper limit of the current.
Down:
This function is only for professional use.
Limitch switching=C.VO The value shown here is the Lower limit of the voltage.
Limitch switching=C.CU The value shown here is the Lower limit of the current
Very important hint: the default is 0 when the factory is out. To set up [Down], it is necessary to set up [High]. only when [Down] is less than [High], and the data will be saved successfully.
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Key use method:
The instrument is designed with single key and can realize various operations.
A: In the normal interface, the length is 3 seconds into the adjustment state. The selected adjustment items will flicker. In this state, click the button to switch back and forth in the adjustment items. When selected: real time electricity, accumulating electricity, accumulating power, double click the button to realize the zero operation. When the alarm switch is selected, the channel switches, double click switch when the channel switches. When selected: upper and lower values, double click to enter data adjustment. In adjustment state, press 3 seconds to exit.
B: under normal interface, double click the button (2 times in short time), enter the calibration interface. It can calibrate the voltage, current, and zero point. The adjustment range is +/-50%. When the parameters flicker, double click, enter the position adjustment (underline below the corresponding number), click the cycle to change the number, double click, change the adjustment position, and press the exit boundary.
Supplement: this interface can also set alarm output mode. This function is very practical.
OUT:TUNR [alarm level changes with alarm status changes]
OUT:HOLD [alarm level lock, when the alarm occurs, output high level, even if the alarm conditions disappear, the output level remains, until a key to restore the low level]
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Wiring method:
There are two sets of lines
Three of the finer A: groups,
Two thick B: group,
Group A:
black wire: power supply negative pole
Red wire: power supply positive. Warning: the maximum can only be connected to 28V, more than damage
Yellow wire: connected to the positive electrode needed to measure voltage
Group B:
black wire: the negative electrode of the tested power supply
Red wire: the negative electrode of the load to be measured. Warning: not connected to the power supply positive pole, otherwise burned
