Problem 1: Poor repeatability and large fluctuations in results.

This often stems from uneven sample dispersion or interference from bubbles in the injection system. Solution: First, ensure that the sample is fully wetted and dispersed. If necessary, add an appropriate amount of dispersant and sonicate; Secondly, check if the circulation pump is working properly and remove any bubbles from the pipeline and sample tank; Confirm again that the opacity is within a reasonable range (usually 5% -20%), and whether it is too high or too low will affect stability.

Problem 2: The particle size result is too large or there are abnormal peaks.

Possible reasons include sample aggregation or abnormal background signals. The sample should be re prepared and the dispersion conditions optimized; Simultaneously cleaning the sample cell and optical window can cause fingerprints, dust, or residues to scatter light, resulting in false peaks. After cleaning with purified water or ethanol, gently wipe with lens paper to avoid scratches.

Problem 3: The instrument cannot be calibrated or self check fails.

It is often related to optical system contamination or standard sample failure. It is necessary to check whether the standard microspheres have expired and whether there is precipitation; Clean the laser emission and reception windows; Ensure stable environment and avoid direct sunlight or vibration interference. If the problem persists, contact the manufacturer for optical path correction.

Problem 4: The software is unresponsive or data is lost.

Test data should be backed up regularly to avoid other operations during instrument operation. Restart the software or host and check if the connection cable is loose. It is recommended to use a dedicated computer to avoid viruses or software conflicts.