To ensure the long-term reliability of the online dust detector, you can follow the following maintenance steps: 

Regular cleaning 

Regularly check the optical windows of the instrument for dust contamination and clean them as needed. It is recommended to check for the first time on the third day after the system is installed, check again after 30 days, and then conduct routine checks every three months thereafter. 

Use a 50% alcohol and distilled water solution to clean the optical windows, but avoid using alcohol containing oil. 

Calibrate

Regular calibration of the dust detector should be performed to ensure accurate measurements. The calibration cycle is usually recommended to be every six months based on the frequency of use and environmental conditions. 

Inspection and maintenance 

Check the installation environment of the instrument to ensure that it is not located near vibrating, dripping, or oil-contaminated areas, and is kept dry. 

Regularly check the battery and filters, and replace them as needed. 

Operational Precautions 

Use the correct power voltage, avoid exceeding the rated power voltage, to prevent damage to the instrument. 

When moving an online dust particle counter, it should be handled with care and not dropped or bumped roughly. 

Troubleshooting 

If the detector malfunctions, such as abnormal readings or failure to start, it should be promptly diagnosed and resolved. Refer to the troubleshooting methods in the user manual for handling, or contact the manufacturer or a professional maintenance personnel. 

Keep a maintenance log. 

Maintain a log of maintenance, recording the date of repair, the repair details, and the operator to track the use and maintenance of the instrument. 

The editor of Qingdao Huanrui Technology believes that by following the above maintenance steps, you can maximize the performance and service life of the online dust detector, ensuring the accuracy and reliability of the monitoring data.