Cleaning and Environmental Effects on Sensors
How environmental conditions and cleaning practices affect sensor performance
Purpose
Sensors are exposed to environmental conditions that can affect performance over time. Understanding how the environment impacts sensors, and how cleaning should be carried out, helps maintain reliable operation and accurate data.
This article provides general guidance on environmental effects and basic cleaning considerations.
Environmental Effects on Sensors
Sensors installed outdoors or in exposed locations may be affected by salt, dirt, dust, moisture, vibration, and temperature variations.
In marine and offshore environments, salt spray and airborne particles can accumulate on sensor surfaces. Over time, this may lead to degraded performance or unstable readings if not addressed.
Environmental effects are often gradual and may not trigger immediate alarms, which is why routine inspection is important.
Impact of Nearby Work Activities
Work activities such as painting, welding, grinding, or blasting near sensors can introduce dust, residue, or overspray.
During such activities, sensors should be protected to prevent contamination or damage. After work is completed, sensors should be inspected to ensure they are clean and unaffected.
Failure to protect sensors during nearby work is a common cause of avoidable sensor issues.
Cleaning of Sensors
Some sensors, particularly optical or exposed sensors, may require periodic cleaning.
Cleaning should always be carried out in accordance with the relevant sensor documentation. Using incorrect methods, tools, or cleaning agents may damage sensor surfaces and affect performance.
If cleaning requirements are unclear, or if there is uncertainty about the condition of a sensor, WISE Group should be contacted before any action is taken.
Underwater and Fouling-Prone Sensors
Sensors exposed to water or marine environments may be subject to fouling over time. Fouling can occur more rapidly in warm or tropical waters but may also develop in colder environments.
Regular inspection and cleaning, as described in the applicable sensor documentation, are essential to maintain reliable measurements.
When Cleaning Does Not Resolve the Issue
If sensor readings remain unstable or incorrect after inspection or cleaning, this may indicate damage, calibration issues, or wiring-related problems.
In such cases, further troubleshooting or service may be required. WISE Group should be contacted to assess the situation and advise on next steps.
Maintenance and Warranty Considerations
Proper protection, inspection, and cleaning of sensors form part of normal system operation.
Damage caused by incorrect cleaning methods, unsuitable materials, or failure to protect sensors during work activities may affect system reliability and, in some cases, warranty coverage.
Key Takeaway
Environmental exposure is unavoidable, but its impact can be managed through routine inspection, proper protection during nearby work, and correct cleaning methods.
Following documented guidance and addressing issues early will help maintain long-term sensor performance and reliable system operation.