Choose the Right Location
Placement is critical for accurate readings. Avoid installing sensors near doors, windows, sunlight, HVAC vents, or cleaning zones, as these create fluctuating or distorted humidity conditions. Always place sensors where ambient air is stable and representative of the actual environment.
Follow Proper Mounting Guidelines
Incorrect mounting leads to unreliable performance and shortened sensor life. Wall-mounted sensors should be installed at human breathing height (1.5–2.0 m), while duct sensors must be fully inserted into airflow. Secure mounting avoids vibrations and improves reading accuracy.
Ensure Correct Wiring and Avoid Signal Interference
Improper wiring can introduce noise and inaccurate data. Use shielded cables, route wires away from power lines, and ground the system correctly. For digital signals like RS-485, apply proper termination and grounding to avoid communication issues.
Protect the Sensor in Harsh Environments
Dust, moisture, or chemical exposure can degrade sensor accuracy and lifespan. Use protective mesh or IP65 enclosures, and choose corrosion-resistant materials for cleanrooms or food facilities. Never expose sensors to high-pressure cleaning or direct water jets.
Schedule Routine Maintenance and Calibration
Humidity sensors naturally drift over time. Set regular maintenance intervals (typically every 6–12 months), clean the sensor gently, and document calibrations — especially in regulated industries like pharma or food, where audit trails are mandatory.
Final Thoughts
Humidity sensors are sensitive precision tools. Proper installation, wiring, protection, and maintenance are essential for ensuring reliable readings, regulatory compliance, and long-term process stability across HVAC, pharmaceutical, and industrial applications.