Products Video
HM6090X Contact Loop Resisitance Tester Display Video
Product Overview & Application Scenarios

Product Overview
The HM6090X Contact Resistance Tester is suitable for on-site maintenance of high-voltage switches in power supply departments and for circuit resistance testing in high-voltage switch manufacturing plants. It can measure the resistance value of the test sample at currents of 100A/200A.
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, cable 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 |
HM6090X |
|
Output Current |
adjustable from 50A/100A |
|
Measurement Range |
10pΩ~10mΩ(50A);10μΩ~10mΩ(100A) |
|
Resolution |
0.1μΩ |
|
Accuracy |
(indication x 0.5%+0.2 μΩ) |
|
Test Time |
1s/5s/10s/30s/60s optional(depending on gear) |
| Measurement frequency |
≥400 times(100AV1mQ/1s mode, fully charged) |
| Test Current |
Adjustable 50A/100A |
| Range |
10μΩ~10mΩ(50A);10μΩ~10mΩ(100A); 10μΩ~10mΩ(50A/F);10μΩ~10mΩ(100A/F) |
| Minimum Resolution |
0.1μΩ |
| Measurement Time |
1s/5s/10s/30s/60s selectable (determined by range setting) |
| Measurement Accuracy |
±(Reading ×0.5%+0.2μΩ) |
| Measurement Cycles |
≥400cycles(100A/1mΩ/1smode, full battery) |
| Power Supply, Weight, and Dimensions | |
| Power Supply | Built-in lithium battery with fast-charging support |
| Main Unit Housing | Insulated ABS material with oxidation resistance |
| Main Unit Weight | ≤1.2kg |
| Main Unit Dimensions | 155mm (L) × 110mm (W) × 70mm (H) |
Instrument Appearance

Figure 1 LCD Screen Layout
Figure 1 shows the screen layout diagram. The components within the page are described as follows:
- 1 Battery Level: Displays the current battery level of the instrument;
- 2 Bluetooth Icon: Indicates that the instrument's Bluetooth is enabled;
- 3 USB Icon: Indicates that the instrument's USB is connected;
- 4 Measurement Status: Indicates that the instrument is currently in measurement mode
- 5 Current Date/Time: Displays year, month, day, hour, and minute;
- 6 Current Range: Shows the output current of the power supply;
- 7 Resistance Measurement Unit: Displays the resistance unit, including "μΩ", "mΩ", 'Ω', and "kΩ";
- 8 Resistance Measurement Result: Shows the measured resistance value;
- 9 History Mode Indicator: Indicates entry into historical measurement query mode;
- 10 History Sequence Number: Displays the sequence number of previously recorded measurements in history mode; shows measurement time in measurement mode;
- 11 Fault and Error Codes: Displays current fault or error codes. Refer to Section 3.3 Test Procedure Notes for corresponding code information.
Products Description











Hot Tags: loop resistance tester, China loop resistance tester manufacturers, factory






















