NEC C551 User Manual - English - Page 8
Mounting location, Mounting on ceilings, Maintenance, Orientation, Changing NEC logo ornament position
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Mounting location • The ceiling and wall must be strong enough to support the monitor and mounting accessories. • DO NOT install in locations where a door or gate can hit the unit. • DO NOT install in areas where the unit will be subjected to strong vibrations and dust. • DO NOT install the monitor next to a location where the main power supply is fed into the building. • DO NOT install the monitor in a location where people can easily grab and hang onto the unit or the mounting equipment. • Allow for adequate ventilation or provide air conditioning around the monitor, so that heat can properly dissipate away from the monitor and from the mounting equipment. Mounting on ceilings • Ensure that the ceiling is sturdy enough to support the weight of the unit and the mounting equipment over time, against earthquakes, unexpected vibrations, and other external forces. • Be sure the unit is mounted to a solid structure within the ceiling, such as a support beam. Secure the monitor using bolts, spring lock washers, washer and nut. • DO NOT mount to areas that have no supporting internal structure. DO NOT use wood screws or anchor screws for mounting. DO NOT mount the unit to ceiling or to hanging fixtures. Maintenance • Periodically check for loose screws, gaps, distortions, or other problems that may occur with the mounting equipment. If a problem is detected, please refer to qualified personnel for service. • Regularly check the mounting location for signs of damage or weakness that may occur over time. Orientation • When using the monitor in the portrait position, it should be rotated clockwise so that the left side is moved to the top, right side is moved to the bottom. This will allow for proper ventilation and will extend the lifetime of the monitor. Improper ventilation may shorten the lifetime of the monitor. LED Indicator Changing NEC logo ornament position When using the monitor in the portrait position, the NEC logo ornament position can be changed. Removing the logo ornament: unscrew the installed screw then take off the logo ornament. Attaching the logo ornament: adjust the protrusions inside of the logo ornament into the protrusion hole on the bezel. Make sure the hole for the screw on the logo ornament and the hole for the screw on the bezel are aligned. Install the logo ornament with the screw, which is used for installing the logo ornament. (Recommended Fasten Force: 30-40N•cm). Protrusion hole Screw hole Protrusion hole Screw hole Protrusions Inside of NEC logo ornament CAUTION: Do not use any other screw to install the logo ornament. English-6