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6.7 Cleaning instructions
To clean the display
Apply a cleaning/disinfecting product to a soft lint-free cloth, such as a microfiber or gauze and rub the display
surface thoroughly. In order to be effective, all surfaces must be cleaned for a certain amount of time (ranging
from 30 seconds to 2 minutes).
Use a cleaning/disinfecting product that is alcohol-, alkali-, water- or chlorine-based. Common examples are:
• Isopropanol 90%
• Ethanol 70%
• 250 ppm Chlorine solution
• 1.6% aqueous ammonia
• “Green soap” (USP)
• 0.5% Chlorehexidine in 70% isopropyl alcohol
• Products similar to optical cleaning liquid (e.g. Wurth TFT-Reiniger)
• Flux
• Sodium hypochlorite 10%
• Peroxide hydrogen 10%
• Ethanol 15% (e.g. Tanet interior)
When selecting an alternative cleaning/disinfecting product, it is recommended to always identify the active
ingredients. In case of doubt about a certain cleaning product, use plain water.
Do not use any of the following products:
• Alcohol in concentrations > 70%
• Strong alkalis lye, strong solvents
• Acetone
• Toluene
• Acids
• Detergents containing fluoride
• Detergents containing ammonia
• Detergents containing abrasives
• Steel wool
• Sponge with abrasives
• Steel blades
• Cloths with steel thread
• Paper-based cloths (e.g. paper towels, facial tissues, toilet paper)
CAUTION: Read and follow all instructions on the label of the cleaning product.
CAUTION: Take care not to damage or scratch the front glass or LCD. Be careful with rings or other
jewelry and do not apply excessive pressure on the front glass or LCD.
CAUTION: When a small object or dust is tucked between the front bezel and the LCD surface (for
displays without front glass), carefully remove with a soft object such as a plastic card or finger nail.
Do not use sharp objects such as paperclips or tweezers to avoid damage to the LCD.
CAUTION: Do not apply or spray liquid directly to the display as excess liquid may cause damage
to internal electronics. Instead, apply the liquid to a cleaning cloth.
6.8 Explanation of symbols
Symbols on the device
On the device or power supply, you may find the following symbols (nonrestrictive list):
Important information
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