1. Introduction
The FNIRSI HRM-10 is a versatile internal resistance tester designed for evaluating various battery types, including automotive, household, AA, and AAA batteries. It accurately measures both voltage and internal resistance to assess battery health and performance. This device is suitable for both personal and professional use, providing precise readings to help determine battery quality over time.
Figure 1: The FNIRSI HRM-10 Internal Resistance Tester, showcasing its display and main features.
Figure 2: The FNIRSI HRM-10 supports testing of various battery types, including button, AA/AAA, 9V, rechargeable, lithium, and lead-acid batteries, as well as resistors and PCB boards.
2. Setup
Before using the FNIRSI HRM-10, ensure all components are present and connect the appropriate testing accessories.
2.1 Unpacking and Inspection
Carefully unpack the device and verify that all included components are present. The standard package includes the FNIRSI HRM-10 main unit.
2.2 Connecting Test Leads
The HRM-10 utilizes a four-wire Kelvin connection method for high-precision measurements. This method helps eliminate resistance from wires and contacts, ensuring accuracy.
- Identify the appropriate test leads for your battery type (e.g., Kelvin clips for larger batteries, probe for smaller cells).
- Connect the test leads securely to the designated ports on the HRM-10.
- Ensure a firm and clean connection to the battery terminals to obtain accurate readings.
Figure 3: The FNIRSI HRM-10 can be used with different connection types, including a tester probe, Kelvin clip, and tester clamp, for universal resistance testing.
Figure 4: The device utilizes a customized Kelvin 4-wire connection method to ensure precise measurements by avoiding wire and contact resistance.
3. Operating Instructions
The FNIRSI HRM-10 is designed for straightforward operation, providing clear and vivid test results on its display.
3.1 Powering On and Basic Measurement
- Press the power button to turn on the device.
- Connect the test leads to the battery terminals. The device will automatically and simultaneously test both voltage and internal resistance.
- Read the results displayed on the TFT HD color screen. The advanced display ensures clear visibility in various lighting conditions.
Figure 5: The TFT HD Color Display provides a brilliant layout, making data easy to read at a glance.
3.2 Advanced Features
- Manual Range Adjustment: Users can manually adjust the voltage and resistance measurement ranges for customized testing scenarios.
- Sorting and Comparison: The device supports presetting up to 8 sets of voltage and resistance values. This feature allows for sorting premium batteries and identifying faulty ones in batches.
- Data Recording and Export: The HRM-10 supports recording historical data and exporting measurement reports. Up to 8 sets of voltage and resistance values can be stored and reviewed, facilitating performance monitoring over time.
Figure 6: The sorting and comparison function allows users to preset voltage and resistance values to identify premium or faulty batteries efficiently.
Figure 7: The device offers full-process record keeping with auto-saved test records and the ability to connect to a PC for data export and analysis.
4. Maintenance
Proper maintenance ensures the longevity and accuracy of your FNIRSI HRM-10.
- Cleaning: Keep the device and its test leads clean. Use a soft, dry cloth to wipe the exterior. Avoid using abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Safety Precautions: The device should not be used with DC voltage exceeding 100V. Do not apply AC voltage under any circumstances, as this can damage the device and pose a safety risk.
- Lead Inspection: Regularly inspect test leads for any signs of wear or damage. Replace damaged leads immediately to ensure accurate measurements and safety.
5. Troubleshooting
If you encounter issues with your FNIRSI HRM-10, refer to the following common troubleshooting steps:
- Device does not power on: Ensure the device is properly charged or connected to a power source. Check the power button for proper function.
- Inaccurate or inconsistent readings:
- Verify that the test leads are securely connected to both the device and the battery terminals.
- Ensure the Kelvin connection is properly established, with separate voltage and current paths to eliminate contact resistance.
- Clean the battery terminals and test lead contacts to remove any dirt or corrosion.
- Confirm the battery is within the specified measurement range of the HRM-10.
- Display issues: If the screen is dim or unreadable, check the device's power level. If the issue persists, contact customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Model | HRM-10 |
| Brand | FNIRSI |
| Resistance Measurement Range | Up to 200Ω |
| Voltage Measurement Range | 0V to ±100V (DC) |
| Minimum Operating Voltage | 100 Volt (DC) |
| Connection Method | True four-wire / 1KHz AC sine (Kelvin connection) |
| Display | TFT HD Color Display |
| Data Storage | Supports historical data recording (up to 8 sets) |
| Data Export | Yes, connect to PC for analysis |
| Power Source | AC (as per product specifications) |
| Color | Blue |
7. Warranty Information
For detailed warranty information regarding your FNIRSI HRM-10 Internal Resistance Tester, please refer to the warranty card included with your product packaging or visit the official FNIRSI website. Warranty terms and conditions may vary by region and purchase date.
8. Customer Support
Should you require technical assistance, have questions about product operation, or need to report a defect, please contact FNIRSI customer support. Contact information can typically be found on the product packaging, the official FNIRSI website, or through your point of purchase.