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Products Video
HM5002-10A Three Phase DC Resistance Tester Wiring and Operation Video
Products Functions
1) Test personnel can select the corresponding output current value based on the product under test.
2) This tester supports high-voltage and low-voltage series excitation test modes, with automatic wiring enabling rapid and precise measurement of low-voltage winding DC resistance.
3) Features three-phase synchronous testing capability.
7) Equipped with a 7-inch color touchscreen for real-time, clear display of test data;
8) Features an English operating interface configurable per user requirements;
9) Includes an RS232 communication port for transferring test data to backend host control software;
10) Features a USB port supporting test data export to USB drives;
11) Incorporates a built-in calendar clock with test data storage (capable of saving 100 sets of data), recall, and printing functions;
12) Features enhanced parameter configuration capabilities covering transformer winding tests, tap positions, test phases, sample temperature, conversion temperature, and other parameters;
13) Utilizes an industrial-grade plastic housing to ensure portability and extend equipment lifespan.
Products Parameter
Output current:
Three-phase test: 10A+10A; 5A+5A; 1A+1A;200mA+200mA;20mA+20mA;
Single-phase test: 20A; 10A; 5A; 1A; 200mA;20mA;
Measurement range:
Three-phase test: 10A+10A: 1mΩ～0.6Ω;
5A+5A: 2mΩ～1.2Ω;
1A+1A: 10mΩ～6Ω;
200mA+200mA: 100mΩ～30Ω;
20mA+20mA: 10Ω～200Ω;
Single-phase test: 20A: 0.5mΩ～1Ω;
10A: 1mΩ～2Ω;
5A: 2mΩ～4Ω;
1A: 10mΩ～20Ω;
200mA: 100mΩ～100Ω;
20mA: 10Ω～20KΩ;
Accuracy: ±(0.2%+2 digits);
Minimum resolution: 0.1μΩ;
Operating temperature: -10～40℃;
Ambient humidity: ≤80%RH, no condensation;
Power supply: AC220V±10%, 50Hz±1Hz;
Tester dimensions: 428mm* 350mm* 230mm (L*W*H);
Tester mass: 11.2kg.
Tester Operation Methods
1) Boot interface
First, connect the test wires and power wires of the tester, turn on the power switch; in this case, the main menu interface will be displayed on the LCD screen, as shown below:
On the main menu interface, the "Resistance Test", "Degauss Function", "Retrieval Record", "Time Settings", and "System Settings" menus will be displayed on the right side. If any menu is clicked, the corresponding parameters will be displayed on the left side (by default, the "Three Phases Test" item under the "Resistance Test" menu is selected on the main interface). Based on the actual wirings of the tester, you can operate the corresponding option on the LCD screen.
2) DC resistance test
(1) Three Phases Test: By default, the "Three Phases Test" item under the "Resistance Test" menu is selected on the main interface. You can click the 
button under the current option to change the test current, select the corresponding test current levelfor the tested product, and then click the "Testing" menu to enter the Three Phases Test interface and display the three-phase test current valued, as shown below:
Wait for a few seconds until the test current is stabilized; The instrument interface shows the value of the three-phase resistance and the unbalance rate of the three-phase resistance, as well as the converted resistance values at the set temperature will be displayed on the tester interface, as shown below:
During the test, you can click to change the values of the "Tapping Position" and "Tested Sample Temperature" parameters based on the actual test conditions; for example, you click the "Tapping Position" prompt box to display the numeric keyboard prompt box, enter the corresponding tap number and then click "OK" button for confirmation, and then click the "ESC" button to return to the test interface, as shown below:
After the test is completed, you need to save the current data. You can click the "Save" button; in this case, the "Saving, Please Wait..." prompt box will be displayed on the LCD screen, indicating that the test data is being saved. After a few seconds, the "Save successfully" prompt box will be displayed, indicating that the test data has been saved, as shown below:
Products Description
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