Optoma ZH500UST ZU500UST_ZH500UST_UM - Page 6
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Usage Notice Do: Turn off and unplug the power plug from the AC outlet before cleaning the product. Use a soft dry cloth with mild detergent to clean the display housing. Disconnect the power plug from AC outlet if the product is not being used for a long period of time. Do not: Block the slots and openings on the unit provided for ventilation. Use abrasive cleaners, waxes or solvents to clean the unit. Do not clean the lens during full operation, otherwise it will cause coating loss or scratches on the lens surface. Optoma is entitled to reject such warranty. Use under the following conditions: - In extremely hot, cold or humid environments. Sea level to 6000 feet Extremely hot: > 35°C Extremely cool: < 5°C 6000 feet above Extremely hot: > 30°C Extremely cool: < 5°C Extremely humid: > 70% R.H. (Relative Humidity) - In areas susceptible to excessive dust and dirt. - Near any appliance generating a strong magnetic field. - In direct sunlight. English 6