Dell S2421HN User Manual

Operating the monitor | 35
Options Description
1
Menu Button unlock
Use this option to unlock OSD menu function.
2
Power Button unlock
Use this option to unlock power button to turn off
the monitor.
3
Menu and Power Button
unlock
Use this option to unlock OSD menu and power
button to turn off the monitor.
4
Built-in Diagnostics
Use this option to run the built-in diagnostics, see
Built-in Diagnostics.
Front-panel button
Use the buttons on the front of the monitor to adjust the image settings.
2 31
Front Panel Button Description
1
Up Down
Use the Up (increase) and Down (decrease) buttons to
adjust items in the OSD menu.
2
OK
Use the OK button to confirm your selection.

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