Plug and play capability, Lcd monitor quality & pixel policy, Maintenance guidelines – Dell ST2420L Monitor User Manual
Page 9: Environmental
Environmental
Plug and Play Capability
You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer system with its Extended Display
Identification Data (EDID) using Display Data Channel (DDC) protocols so that the system can configure itself and optimize the monitor settings. If required,
the user can select different settings, but in most cases monitor installation is automatic.
LCD Monitor Quality & Pixel Policy
During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. The visible result is a fixed
pixel that appears as an extremely tiny dark or bright discolored spot. When the pixel remains permanently lit, it is known as a "bright dot." When the pixel
remains black, it is known as a "dark dot."
In almost every case, these fixed pixels are hard to see and do not detract from display quality or usability. A display with 1 to 5 fixed pixels is considered
normal and within competitive standards. For more information, see Dell Support site at:
support.dell.com.
Maintenance Guidelines
Dimensions (with stand)
Height
418.24 mm (16.47 inches)
Width
574.96 mm (22.64 inches)
Depth
203.68 mm (8.02 inches)
Dimensions (without stand)
Height
356.43 mm (14.03 inches)
Width
574.96 mm (22.64 inches)
Depth
59.72 mm (2.35 inches)
Stand dimensions
Height
149.85 mm ( 5.90 inches)
Width
203.68 mm (8.02 inches)
Depth
203.68 mm (8.02 inches)
Weight
Weight with packaging
5.75 kg (12.68 lb)
Weight with stand assembly and
cables
4.29 kg (9.46 lb)
Weight without stand assembly
(for wall mount or VESA mount
considerations - no cables)
3.65 kg (8.05 lb)
Weight of stand assembly
0.64 kg (1.41 lb)
Model
ST2420L/ST2421L
Temperature
Operating
0° to 40° C (32° to 104°F)
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
4,485 m (14,700 ft) max
Non-operating
12,191 m (40,000 ft) max
Thermal dissipation
102.36 BTU/hour (maximum)
68.24 BTU/hour (typical)