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1. Background of the case
A well-known food production enterprise recently introduced Fanchi Tech's metal detectors to ensure product safety during the production process and prevent metal contaminants from entering the final product. In order to ensure the normal operation of the metal detector and its designed sensitivity, the company has decided to conduct a comprehensive sensitivity test.

2. Test purpose
The main purpose of this test is to verify whether the sensitivity of Fanchi Tech metal detectors meets the standard requirements and ensure their detection effectiveness during the production process. Specific goals include:
Determine the detection limit of the metal detector.
Verify the detection capability of the detector for different types of metals.
Confirm the stability and reliability of the detector under continuous operation.

3. Testing equipment
Fanchi BRC standard metal detector
Various metal test samples (iron, stainless steel, aluminum, copper, etc.)
Test sample preparation equipment
Data recording equipment and software

4. Testing steps
4.1 Test Preparation
Equipment inspection: Check whether the various functions of the metal detector, including the display screen, conveyor belt, control system, etc., are normal.
Sample preparation: Prepare various metal test samples, with consistent sizes and shapes that can be block or sheet.
Parameter setting: According to the Fanchi BRC standard, set the relevant parameters of the metal detector, such as sensitivity level, detection mode, etc.

4.2 Sensitivity Test
Initial testing: Set the metal detector to standard mode and sequentially pass different metal samples (iron, stainless steel, aluminum, copper, etc.) to record the minimum size required for each sample to be detected.
Sensitivity adjustment: Based on the initial test results, gradually adjust the detector sensitivity and repeat the test until the best detection effect is achieved.
Stability testing: Under the optimal sensitivity setting, continuously pass metal samples of the same size to record the consistency and accuracy of detector alarms.

4.3 Data Recording and Analysis
Data recording: Use data recording equipment to record the results of each test, including sample metal type, size, detection results, etc.
Data analysis: Analyze the recorded data, calculate the detection limit for each metal, and evaluate the stability and reliability of the detector.

5. Results and Conclusion
After a series of tests, Fanchi BRC standard metal detectors have demonstrated excellent detection performance, with detection limits for various metals meeting the standard requirements. The detector exhibits good stability and reliability under continuous operation, with consistent and accurate alarms.

6. Suggestions and improvement measures
Regularly maintain and calibrate metal detectors to ensure their long-term stable operation.