Description:
This is an electronic load board of very high cost performance, adopting two completely independent 18 bit ADC chip, 15 PPM voltage benchmark, which allows a high accuracy. It is
better than other electronic load with single chip builtin AD sampling digital tube display or battery capacity tester. S
upporting user second correction of parameters, it is a best choice for DIY users.
Features:
1602 LCD screen, display information comprehensively.
Configuration of 9cm CPU fan, very quiet.
With temperature display, supporting the discharge and voltage setting.
Test all kinds of power load or burnin, can also test capacity of battery discharge.
Load maximum power 150W, maximum voltage 60V, maximum current 10A.
Specifications:
Voltage: DC 12V+5percent
Load Type: Constant current
Load Voltage: 0.560V
Load Current: 010A
Maximum Power: 150W
Voltage Reading Precision: +(0.1percent +0.05percent FS)
Current Reading Precision: +(0.2percent +0.1percent FS)
Constant Current Accuracy: Current reading Precision + 1d
Noise: 25dD(A)
Weight: 341g(approx.)
Instruction:
Wiring Diagram of 2 Wires
(Safe and convenient):
Note: 2 wires must be respectively connected to A+ and A. V+ is connected to A+, and V is connected to A.
Wiring Diagram of 4 Wires:
Note: 4 wires must be connected completely before use.
4 wires can offset voltage drop caused by electric wires under large current and ensures a more accurate voltage measurement. It is recommended if you are a professional. 4 wires must be all connected correctly before you power on the load. Wrong wiring is likely to cause damage, please make sure the wiring is correct! As you can see in the picture, there are thick wires and thin wires. The thick wires are for current, the thin wires are for measuring voltage, and of course you can use thick wires for all.
Below is the operation interface. The operation is very simple and easy(when it displays "ON", it must be connected to load, otherwise it will beep and won"t work)
Bottom left screen corner will display information that automatic
switching between power, AH, temperature,
time, and can be set to
always
display certain one.
"I": Setting load current
"V": Setting discharge cutoff voltage.
1, the power adapter: DC 12V, load power and power supply should be 2 independent power.
2, Power on and screen shows "Welcome to use" which means equipment is normal
3, Press "set" to move the cursor, add and subtract operations according to the cursor position. When the cursor position is at "I" or "V", press "add" or "subtract" button to switch
current
and
voltage
setting.
4, Connect to power source that need to be tested, and make sure the wiring is correct.
5, Press "start" button to startstop electronic load, and screen shows "ON" or "OF"
6, Press and hold "start" button for more than 1 second to reset AH and time, and power off the electronic load (if it was powered on)
7, The bottom left screen corner will display information that automatic switching by default every 2 seconds between power, AH, temperature, time. Press and hold "set" button, then press "add" button to switch, and the display information will not switch automatically. If you need the information to switch automatically again, press and hold "set" button, then press "subtract" button till bottom right screen corner shows "Auto".
8, Settings will be automatically saved after power failure. Electric loaf need to be manually started when power is back.
9, Continuous operation power of load is associated with operating temperature. When temperature is too high, operation power should be reduced. If the heat sink temperature reaches 87 celsius , the load will automatically reduce power. When the core temperature reaches 91 celsius , it will stop work, and need to be manually started after cooling.
10, Load current will be automatically adjusted according to the input voltage. For example, if set 10A, and the input voltage is 20V, then it automatically change the actual current to 7.5A (150W20V), even it still displays 10A.
11, Reset first if need statistics of AH and time. It has been accumulating by default, will not automatically reset, and can only be reset manually.
12, Turn OnOff Buzzer: Press and hold "set" button, then press "start" button to turn onoff buzzer, screen displays "BUON" or "BUOF", automatically saved after power failure.
13, If set cutoff voltage is lower than actual voltage, load can"t power on, or it will power off immediately when power on. Make sure the set cutoff voltage is not lower than the actual measuring voltage.
Note:
1, Power supply and load testing power supply must be independent from each other; otherwise it may to uncontrollable load or other unpredictable situation.
2, If the load is already started and then connect with test power, you need to assess whether power is secure. For example, if set 10A and start load, then connect to 60V power source, the instantaneous power can reach 600W, which can probably damage power tube. Although the load current can be adjusted automatically, it needs reaction time (about 0.02 second). So when you are not sure if it is secure, you can connect it to test power supply first, and the machine will automatically calculate the largest secure current. For example, when the maximum voltage is 60V, the secure current is 2.5 A. If you set the current above 2.5A, it will work at 2.5A.
3, Connecting wrongly positive and negative positive and negative electrodes of test power supply will cause short circuit, and if the current is too large, power tube may be damaged. Avoid wrong wiring, please.
4, Users need to have some knowledge of circuit, please make sure you know how to use it.
5, It is suggested to power on this item before connecting with test power supply or test batteries.
Package Includes:
1 x Electronic Load
Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.
.1602 LCD screen, display information comprehensively
Configuration of 9cm CPU fan, very quiet
With temperature display, supporting the discharge and voltage setting
Test all kinds of power load or burinin, can also test capacity of battery discharge
Load maximum power 150W, maximum voltage 60V, maximum current 10A
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