Maintenance is essential for all testing instruments. Poor maintenance may lead to significant deviations in test data, making it hard to identify quality issues. Operators of water quality detectors need to carry out proper maintenance to keep the equipment in good condition and ensure reliable water quality test results.

Enterprises usually calibrate water quality detectors before use, yet potential issues may still exist and damage the instruments. Below are two important points to note when following maintenance standards for such water quality testing equipment.

1. Conduct assessments on available equipment. Inspect wearable parts and components that regularly come into contact with test samples, to check for damage caused by corrosion. It is also necessary to evaluate interference from external factors and assess the aging status of detectors. Keep records during each assessment to track equipment conditions in a timely manner.
2. Periodic calibration is an important part of maintenance. Modi, based in Hangzhou, manufactures online water quality monitoring devices featuring an auto-calibration function that can run calibration on a set schedule. Even so, pre-calibration is recommended, especially for devices used for field water analysis, which helps save operation time. If the equipment suffers impact, the original calibration settings may shift, and re-calibrationwill be required. Detectors with high usage frequency should be calibrated monthly, while those used less often can follow a reduced calibration schedule to avoid unnecessary work.