FAQs: Aging Test for Moisture Removal on Network Camera Front Cover
Q1: How should we perform an aging test to eliminate moisture (fog) trapped inside the front cover glass of the network camera?
Answer: To effectively remove internal moisture from the front glass through an aging test, follow these optimized steps carefully:
- Create a ventilation gap – Gently disassemble the camera housing and slightly loosen the screws on the front cover. This creates a small gap that allows humid air to escape as the internal temperature rises.
- Position the camera face-down – Place the camera on a stable surface with the front lens/cover facing downward (toward the desk or floor). This orientation uses gravity to help condensed droplets fall away from the glass and prevents evaporated moisture from re‑settling on the inner surface.
- Activate the heat source – Power on the camera and ensure the IR LEDs are turned on (if the IR board has not been removed). The heat generated by the IR LEDs significantly accelerates the evaporation of residual moisture inside the housing.
- Run continuously (aging period) – Let the camera operate non‑stop for at least 24 hours (longer if needed). The sustained internal heat will gradually convert trapped moisture into vapor and push it out through the loosened gap.
- Tighten while hot – After the aging period, while the camera is still powered on and warm (do NOT turn it off), carefully tighten the front cover screws back into place. Why? Tightening the cover while the internal air is warm prevents negative pressure from forming as the unit cools down, which could otherwise suck new humid air back in through the seals.
- Verify the result – Allow the camera to cool to room temperature, then check the front glass for any remaining fog or droplets. If moisture persists, repeat the test or inspect the rubber sealing ring for damage.
Additional Tip: Perform the aging test in a low‑humidity environment whenever possible. If the ambient air is extremely moist, place the camera (with the cover slightly loosened) inside a sealed bag with a desiccant pack during the first few hours to speed up moisture extraction.