WWW.DUALSIG.COM5WelcomeThank you for purchasing our DVR!This manual is designed to be a reference tool for the installation and operationof your Qvis DVR series DVR system.You will ind information about this Qvis DVRseries DVR's features and functions,as well as a detailed menu tree.Before you begin installation and operation please read the following safeguardsand warnings carefully!Important Safeguards and WarningsDo not place heavy objects on the DVR.Please ensure no solid or liquid fall into or iniltrate the DVR.Please brush printed circuit boards, connectors, fans, machine box and so onregularly.Before cleaning however, please switch off the power supply and unplug it fromthe mains.Do not attempt to disassemble or repair the DVR by yourself. Do not attempt toreplace any components by yourself.EnvironmentPlease position and use the DVR in a dry environment between 0o and 40o.Do not position or use in direct sunlight or near a heat source..Do not install the DVR in damp, smoky or dusty environment.Avoid shocks or physical damage to the DVR.Please insure the DVR is level and in a stable workplace.Please install in a well ventilated environment. Keep the vents clean.Use within the rating input and output scope.WWW.DUALSIG.COM