Dell S2421HN User Manual

Safety instructions | 5
Safety instructions
CAUTION: Use of controls, adjustments, or procedures other than those
specified in this documentation may result in exposure to shock, electrical
hazards, and/or mechanical hazards.
• Place the monitor on a solid surface and handle it carefully. The screen is fragile
and can be damaged if dropped or hit sharply.
• Always be sure that your monitor is electrically rated to operate with the AC
power available in your location.
• Keep the monitor in room temperature. Excessive cold or hot conditions can have
an adverse effect on the liquid crystal of the display.
• Do not subject the monitor to severe vibration or high impact conditions. For
example, do not place the monitor inside a car trunk.
• Unplug the monitor when it is going to be left unused for an extended period of
time.
• To avoid electric shock, do not attempt to remove any cover or touch the inside
of the monitor.
For information on safety instructions, see the Safety, Environmental, and Regulatory
Information (SERI).

Dell S2421HN Specifications

General

Pixel pitch	0.2745 x 0.2745 mm
Screen shape	Flat
Pixel density	92.56 ppi
Backlight type	LED
Display diagonal	23.8 \
Display technology	LCD
Native aspect ratio	16:9
Vertical scan range	48 - 75 Hz
Maximum refresh rate	75 Hz
Horizontal scan range	30 - 83 kHz
Supported video modes	480i, 480p, 576i, 576p, 720p, 1080i, 1080p
NTSC coverage (typical)	72 %
Viewable size, vertical	296.46 mm
Contrast ratio (typical)	1000:1
Display number of colors	16.78 million colors
Viewable size, horizontal	527.04 mm
Display brightness (typical)	250 cd/m²
Supported graphics resolutions	640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1600 x 900, 1920 x 1080 (HD 1080)
HDMI	Yes
Audio input	-
HDMI version	1.4
DisplayPorts quantity	0
Tilt angle range	-5 - 21 °
Panel mounting interface	100 x 100 mm
AC input voltage	100 - 230 V
Power supply type	Internal
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (max)	21 W
Annual energy consumption	18 kWh
Power consumption (standby)	0.2 W
Power consumption (typical)	12.2 W
Operating altitude	0 - 5000 m
Non-operating altitude	0 - 12192 m
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 80 %
Feet color	Gray
Product color	Black
Heavy metals free	Hg (mercury)
Market positioning	Business
Sustainability certificates	RoHS, ENERGY STAR
Cables included	AC, HDMI
Package depth	619 mm
Package width	134.87 mm
Package height	394.97 mm
Harmonized System (HS) code	85285210

Weight and Dimensions

Bezel width (top)	5.4 mm
Depth (with stand)	152.8 mm
Height (with stand)	412.8 mm
Weight (with stand)	3800 g
Bezel width (bottom)	20.7 mm
Depth (without stand)	53.8 mm
Width (without stand)	537.8 mm
Height (without stand)	322.6 mm
Weight (without stand)	3300 g