Safety requirements EN Temperature -10 ° C to 40 ° C, relative humidity ≤80% Storage conditions: Temperature -20 ° C to 60 ° C, relative humidity ≤80% Warning: To avoid short circuit or electric shock, do not operate the instrument in a damp environment. Warning: Ensure that no overvoltage (e.g. lightning) reaches the product. Otherwise, the operator may be in danger of suffering from electric shock. 1.5 Maintenance and cleaning Maintenance: Do not expose the instrument to direct sunlight for a long time when storing or placing the instrument. Note: To avoid damaging the instrument or accessories, do not place it in fog, liquid or solvent. Cleaning:
Check the instrument and accessories frequently as required by the operating conditions. Clean the outer surface of the instrument according to the following steps: 1) Use lint-free cloth to remove floating dust outside the instrument and accessories. Please be careful to avoid scratching the smooth display. 2) Clean the instrument with a soft cloth soaked in water. For a more thorough cleaning, use a aqueous solution of 75% isopropyl alcohol. Note: To avoid damaging the surface of the instrument and accessories, do not use any corrosive reagent or chemical cleaning reagent. Copyright Qingdao Hantek Electronics Co., LTD HDP10000 series user manual 3