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HT360 датащи(PDF) 12 Page - Qingdao Hantek Electronic Co., Ltd. |
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HT360 датащи(HTML) 12 Page - Qingdao Hantek Electronic Co., Ltd. |
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12 / 46 page ![]() Safety requirements EN HT360 series user manual Copyright©Qingdao Hantek Electronics Co.,LTD 4 environments. Pollution level 3: Conductive pollution occurs, or dry non-conductive pollution becomes conductive due to condensation. Examples: sheltered outdoor environment. Pollution Level 4: Permanent conductive contamination through conductive dust, rain or snow. Examples: outdoor sites. Security level Level 1 - Grounded product 1.4 Maintenance and cleaning Maintenance: Do not expose the LCD to direct sunlight for a long time when storing or placing the hardness tester. Cleaning: Check the instrument frequently according to the requirements of operating conditions, and clean the external surface according to the following steps: 1) Use a lint free rag to remove the floating dust on the outside of the hardness tester. Be careful to avoid scratching the bright filter material of the display. 2) Clean the hardness tester with a soft cloth soaked in water. For more thorough cleaning, use a 75% isopropyl alcohol water solvent. Note: To avoid damaging the surface of the instrument, do not use any corrosive reagents or chemical cleaning reagents. Warning: Before reenergizing, please make sure that the instrument is dry to avoid electrical short circuit or personal injury caused by moisture. |
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