After-sales Case of Russian Brinell Hardness Tester

Fault Description：

After the Brinell hardness tester was powered on, there was no image displayed on the screen camera at all. When an object was used to block the camera for a test, the screen remained completely black with no changes.

Troubleshooting Process：

The customer initially judged that the position of the optical components above the turret had shifted, probably due to impact during transportation.

Given the abnormal camera display that suggested a failed connection, we recommended the customer to first check if the camera interface was fully inserted, and then adjust relevant camera parameters (e.g., exposure) and verify the focus plane alignment.

The parameter adjustment did not bring any obvious improvement. We then accessed the background parameters and conducted tests, which indicated that the turret position might have shifted due to the impact.

In addition, as the Russian version of the software was developed for the first time with potential imperfections, we asked the customer to reimport the program software by rewriting it into the device using a blank memory card.

We also instructed the customer to disassemble the screen and inspect other parts for misalignment, and no component misalignment was found during the inspection.

After the program update, we adjusted the background parameters for a second time and conducted multiple tests and calibrations.

Eventually, the camera image appeared on the screen, and the indentation could be clearly observed.

Root Cause Analysis:

The key components of the hardness tester were misaligned due to impact during transportation. Brinell hardness testers are relatively heavy in weight, making them more prone to component misalignment caused by collision compared with Rockwell hardness testers.

Improvement Measures:

Strengthen the packaging of the equipment with additional cushioning materials, especially for the head section where the upper indenter and objective lens are concentrated, to prevent component misalignment caused by transportation impact.