WWW.DUALSIG.COM
5
1. Welcome
Thank you for purchasing our DVR!
This manual is designed to be a reference tool for the installation and operation
of 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 safeguards
and warnings carefully!
Important Safeguards and Warnings
Do 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 on
regularly.
Before cleaning however, please switch off the power supply and unplug it from
the mains.
Do not attempt to disassemble or repair the DVR by yourself. Do not attempt to
replace any components by yourself.
Environment
Please position and use the DVR in a dry environment between 0
o
and 40
o
.
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
