Dell ST2220T Monitor - Manual (Page 11)

Maintenance Guidelines
Cleaning Your Monitor
For best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor:
l To clean your touch screen, use the supplied soft, clean cloth. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air. Avoid
wiping the top corners of the monitor where the optics are located.
l Use a lightly-dampened, warm cloth to clean the monitor. Avoid using detergent of any kind as some detergents leave a milky film on the monitor.
l Handle your monitor with care; any scratch on the monitor will show scuff marks.
l To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.
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Non-operating
Storage: -20° to 60° C (-4° to 140° F)
Shipping: -20° to 60° C (-4° to 140° F)
Humidity
Operating 10% to 80% (non-condensing)
Non-operating
Storage: 5% to 90% (non-condensing)
Shipping: 5% to 90% (non-condensing)
Altitude
Operating 3,657.60 m (12,000 ft) max
Non-operating 12,192 m (40,000 ft) max
Thermal dissipation
222.3 BTU/hour (maximum)
188.1 BTU/hour (typical)
CAUTION: Read and follow the safety instructions before cleaning the monitor.
CAUTION: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet.