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Plug and play capability, Lcd monitor quality & pixel policy, Maintenance guidelines – Dell ST2420L Monitor User Manual

Page 9: Environmental

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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)