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Network Speed Dome User Manual
Appendix 4 Bubble Maintenance
The bubble is a transparent plastic. The dust, oil and finger print, etc. will cause scratch or image
blur. Please refer to the following method to clean the bubble.
Handling dust
Use oil free soft brush or blowing dust ball to clean the dust.
Handling oil
Steps:
1. Wipe off the water-drop or oil by soft cloth and dry the bubble.
2. Use oil free cotton cloth to wipe the bubble with alcohol or detergent.
3. Change the cloth to wipe the bubble until the bubble is clean.
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