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Products Video
HM6090 200A Handheld Contact Resistance Tester Display Video
Product Overview & Application Scenarios
Product Overview
The HM6090-200A is a fully automatic handheld contact resistance tester developed using high-frequency switching power supply technology and digital circuitry. Compliant with the power industry standard DL/T845.4-2004, it outputs a 100A DC current to precisely measure the contact resistance of conductive components with a resolution of 0.1μΩ. It is suitable for rapid reliability testing of electrical connections.
Application Scenarios
Power System Maintenance: Measure contact resistance of main contacts in high/low-voltage switchgear, circuit breakers, and isolating switches.
Industrial Equipment Inspection: Test resistance values at relay contacts, wire solder joints, and busbar connections.
Field Operations: Conduct portable testing at substations, distribution rooms, and other environments without fixed power sources.
Technical Specifications
|
Parameter |
Specification |
|
Model |
HM6090S - 100A |
|
Output Current |
200A, 150A, 100A, 50A |
|
Measurement Range |
200A 0 - 1000uΩ 150A 0 - 1400uΩ 100A 0 - 2000uΩ 50A 0 - 10 mΩ |
|
Resolution |
0.1μΩ |
|
Accuracy |
± (reading x 0.5%+ 1 uΩ) |
|
Test Time |
fast, 10 ~ 60 seconds optional |
| Automatic shutdown |
automatic shutdown after 5 minutes without operation |
| Power supply |
built-in lithium battery or external charger, charger input 100 - 240VAC, 50Hz/60Hz |
| Charging voltage | 12.6V |
| Charging current | ≤3A |
| Host size | 220mm ×168mm ×65mm |
| Host weight | 1.6kg (excluding test line) |
Panel introduction
LCD screen: 4.3 inch industrial high brightness color LCD screen, display operation menu and display measurement results.
Keyboard: used for the operation and parameter setting of various functions.
I+, I- : current output terminal.
V+, V- : voltage input jack.
USB port: Connects to an external USB disk for storing test data.
USB square port: Connects to an external printer.
Charging interface: use special charger for charging.
operation instructions
After all test wires are connected, power on the instrument and enter the "main menu" interface after initialization, as shown in the picture below.
Select "Start test" and press "Ok" to enter the "Prepare test" interface, as shown below.
Current: Set the output power of this experiment to 50A/100A/150A/200A.
If the circuit resistance exceeds the range of the corresponding tap during the test, the current may not reach the set current.
Time: Set the test time of this experiment, 50A / 100A can choose "fast" or "10 / 20 / 30 / 40 / 50 / 60 seconds", 150A / 200A can choose "fast" or "5 seconds" test can press "Cancel" to stop the test at any time.
Number: Set the sample number of this experiment
Main display area: display the resistance value of the measured object.
Vice display area: display the voltage value, current value and test time of the tested product.
"Test Results" is shown below. Press left and right to move the cursor, and press OK to perform the selected operation.
In the testing process, if the instrument has detected the fault of poor contact with the test line, the fault prompt box will pop up to alarm and stop the measurement.
If the instrument detects that the internal temperature is too high, the fan will be automatically turned on for cooling, and the fan will be automatically turned off after the temperature drops.
Continue measurement: Continue the resistance measurement with the current setting.
Print data: Print the current test results by connecting to an external printer.
Save data: Save the current test results to the local machine.
On the Main menu interface, select "Save Query" and press "Ok" to enter the "Save Records" interface, as shown in the following figure.
Usb flash drive storage: The local storage content is saved to an external USB flash drive.
Products Description
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