Safety requirement EN Do not touch exposed connectors and components after power is switched on. ⚫ Do not operate if the product is suspected to be faulty. If you suspect that the product has been damaged, please ask qualified maintenance personnel to check it. ⚫ Maintain proper ventilation. ⚫ Do not operate in a humid environment. ⚫ Do not operate in inflammable or explosive environment. ⚫ Please keep the product surface clean and dry. Warning: Equipment that meets Class A requirements may not provide adequate protection for broadcast services in residential environments. 1.2 Security terms and signs Security terms in this manual: Warning:
Indicates that the operation may not cause immediate damage to you. Warning: Indicates that if you perform this operation, it may not immediately cause damage to you. Note: Indicates that the operation may cause damage to the product or other property. Safety terms on products:： HBT3000 series user manual Copyright © Qingdao Hantek Electronic Co., LTD 2