4260HD | 4290HD | Maintenance clean exterior

Environment:

• Rise series
• 4260HD
• 4290HD

Purpose:
The 4260HD & 4290HD series maintenance requirements are minimal, requiring only occasional exterior cleaning as described below:

Non-Optical Surfaces

• Clean the exterior as needed.

Optical Surfaces

• Visible Spectrum Camera Head 4260HD and 4290HD
  • Clean the front window on the camera head as needed. Use a soft nonabrasive cloth, such as terry cloth or microfiber cloth, and a foaming glass cleaner. If present, clean the wiper blade and inspect it. Replace the arm if necessary.
• Thermal Camera Head 4290HD
  • Clean the thermal lens on the camera head as needed.
    

Cleaning Thermal Camera Lens

Caution: Do not use tools or sharp objects when cleaning the lens.

Removal of Hard Particles and Contaminants

• In a cleanroom: Use compressed nitrogen to blow off the dust and other particles.
• Infield conditions: Rinse the lens with running water or use a wet cloth in order to remove sand, salt, and other contaminants (do not apply pressure). Wipe the lens using soft tissue paper or lens tissue.

Cleaning with Solvent

Use the following solvents for cleaning:

• Acetone – to remove grease
• Ethanol – to remove fingerprints and other contaminants
• Alcohol – for final cleaning (before use)

Below are steps for cleaning the thermal lens:

1. Immerse the tissue paper in alcohol/ propanol/ acetone or ethanol (reagent grade).
2. Wipe the lens in "S" motion (so that each area of the lens will not be wiped more than once).
3. Repeat stage 2 until the lens is clean. Use a new tissue each time.

CohuHD also recommends the use of MiracalWipe® TX4004, TX4009, or TX4012 from Texwipe to clean the lens: https://www.texwipe.com.