
4 Safety instructions
Safety instructions
This monitor is manufactured and tested on a ground principle that a user’s 
safety comes first. However, improper use or installation may result in danger 
to the user, damage to the monitor, or both. Use the following safety guidelines 
to protect your monitor from potential damage and ensure your personal 
safety. 
WARNING: This monitor should be operated only with a correct power 
source as indicated at the label on the rear of the monitor. For more 
information on the power source you are using, contact your power service 
provider.
WARNING: You should only perform troubleshooting and repairs as 
authorized or directed by the Dell technical assistance team. Damage due 
to servicing that is not authorized by Dell is not covered by your warranty.
WARNING: To avoid electric shock, do not attempt to remove any cover or 
touch the inside of the monitor. Only a qualified service technician should 
open the monitor cover.
WARNING: Stop using the monitor if the cover is damaged. Have it checked 
by a service technician.
WARNING: Place the monitor on a flat, soft, and clean surface. If there is a 
liquid spill on the monitor, unplug the monitor from the power source and 
contact Dell for assistance.
WARNING: Before you clean your monitor, disconnect it from the electrical 
outlet. Clean your monitor with a soft cloth dampened with water or non-
ammonia based cleaner.
WARNING: Keep the monitor away from magnetic objects, motors, TV sets, 
and electrical transformers.
WARNING: Do not place heavy objects on the cables.
WARNING: For monitors with reflective screens, position the monitor such 
that glares caused by other light sources are avoided.
WARNING: When you purchase a VESA wall mount, ensure it is UL-listed 
and that only a qualified service technician installs it.