Dell UltraSharp 32 User manual

Model: U3224KB
Regulatory model: U3224KBt
Dell UltraSharp 32 6K Monitor
-U3224KB
User’s Guide

NOTE: A NOTE indicates important information that helps you make
better use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of
data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage,
personal injury, or death.
Copyright © 2023 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks
are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective
owners.
2023 – 05
Rev. A00

| 3
Contents
Safety instructions..............................6
About your monitor .............................7
Package contents . . . . . . . . . . . . . . . . . . . . . . . . . 7
Product features. . . . . . . . . . . . . . . . . . . . . . . . . .8
Identifying parts and controls. . . . . . . . . . . . . . . . . . 10
Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Monitor specifications. . . . . . . . . . . . . . . . . . . . . . 15
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Preset display modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
ThunderboltTM 4 out for daisy chain . . . . . . . . . . . . . . . . . . . . . 19
Unified Communications (UC) Platform Compatibility List . . . . . . . .20
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Webcam – microphone specifications . . . . . . . . . . . . . . . . . . . .22
Speaker Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . .24
Video Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Plug-and-Play capability . . . . . . . . . . . . . . . . . . . . 34
LCD monitor quality and pixel policy . . . . . . . . . . . . . . 34
Ergonomics . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Handling and moving your display. . . . . . . . . . . . . . . . 36
Maintenance guidelines . . . . . . . . . . . . . . . . . . . . . 38
Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Contents | 3

4|
Setting up the monitor..........................39
Attaching the stand . . . . . . . . . . . . . . . . . . . . . . . 39
Using the tilt, swivel, and vertical extension . . . . . . . . . . 42
Tilt, swivel, and vertical extension. . . . . . . . . . . . . . . . . . . . . .42
Rotating the Display . . . . . . . . . . . . . . . . . . . . . . . 43
Organizing your cables . . . . . . . . . . . . . . . . . . . . . 44
Connecting your monitor . . . . . . . . . . . . . . . . . . . . 45
Dell Power Button Sync (DPBS) . . . . . . . . . . . . . . . . 51
Connecting the monitor for DPBS for the first time . . . . . . . . . . . .54
Using DPBS function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Connecting the monitor for ThunderboltTM daisy chain function . . . . . .57
Connecting the monitor for ThunderboltTM 4. . . . . . . . . . . . . . . .58
Operating the monitor webcam . . . . . . . . . . . . . . . . . 60
Dell Peripheral Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Securing your monitor using Kensington lock (optional) . . . 62
Removing the monitor stand . . . . . . . . . . . . . . . . . . 63
Wall mounting (Optional) . . . . . . . . . . . . . . . . . . . . 64
Operating the monitor ..........................65
Power on the monitor . . . . . . . . . . . . . . . . . . . . . . 65
Using the joystick control . . . . . . . . . . . . . . . . . . . . 65
Using the rear-panel controls . . . . . . . . . . . . . . . . . . 67
Front-panel button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Using the Main Menu . . . . . . . . . . . . . . . . . . . . . . 69
Using the OSD lock function . . . . . . . . . . . . . . . . . . 86
Initial Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Setting the maximum resolution. . . . . . . . . . . . . . . . . . . . . . .93
Setting up Windows Hello . . . . . . . . . . . . . . . . . . . . 94
Setting up the monitor webcam as default setting. . . . . . . 98
Setting up the monitor speaker as default setting . . . . . . .103

| 5
Troubleshooting ..............................106
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . 107
Common Problems. . . . . . . . . . . . . . . . . . . . . . . .108
Product specific problems . . . . . . . . . . . . . . . . . . . 113
Microsoft®Teams®/ Skype for Business®specific problems . 121
Universal Serial Bus (USB) specific problems . . . . . . . . . 122
Appendix....................................123
FCC notices (U.S. only) and other regulatory information . . .123
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . 123

6| Safety instructions
Safety instructions
Use the following safety guidelines to protect you monitor from potential damage and
to ensure your personal safety. Unless otherwise noted, each procedure included in this
document assumes that you have read the safety information that shipped with your
monitor.
NOTE: Before using the monitor, read the safety information that
is shipped with your monitor and printed on the product. Keep the
documentation at a secure location for future reference.
WARNING: 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.
WARNING: The possible long-term effect of listening to audio at high
volume through the headphones (on monitor that support it) may cause
damage to your hearing ability.
• Place the monitor on a solid surface and handle it carefully. The screen is fragile
and can be damaged if dropped or hit with a sharp object.
• Ensure 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 crystals of the display.
• Connect the power cable from the monitor to a wall outlet that is near and
accessible. See Connecting your monitor.
• Do not place and use the monitor on a wet surface or near water.
• 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.
• To avoid electric shock, do not attempt to remove any cover or touch the inside
of the monitor.
• Read these instructions carefully. Keep this document for future reference. Follow
all warnings and instructions marked on the product.
• Certain monitors can be wall mounted using the VESA mount that is sold
separately. Ensure to use the correct VESA specifications as mentioned in the
wall mounting section of the User’s Guide.
For information on safety instructions, see the Safety, Environmental, and Regulatory
Information (SERI) document that is shipped with your monitor.

About your monitor | 7
About your monitor
Package contents
The following table provides the list of components that are shipped with your monitor,
If any component is missing, contact Dell. For more information, see Contact Dell.
NOTE: Some items may be optional and may not ship with your monitor.
Somefeatures may not be available in certain countries.
Component image Component description
Display
Stand riser
Stand base
Power cable (varies by country)

8| About your monitor
DisplayPort cable (mDP to mDP)
USB 3.2 Gen2 Type-A to Type-C
upstream cable
ThunderboltTM 4 cable
32
32 U3224KB
• Quick Setup Guide
• Safety, Environmental, and Regulatory
Information
• Factory Calibration Report
Product features
The Dell UltraSharp U3224KB monitor has an active matrix, Thin-Film Transistor
(TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include:
• 79.94 cm (31.5 in.) active area display (Measured diagonally) 6144 x 3456 (16:9)
resolution, plus full-screen support for lower resolutions.
• Wide viewing angles with 100% sRGB color, 99% DCI-P3, 100% Rec.709 & 99%
Display P3.
• Tilt, swivel, pivot, and vertical extension adjustment capabilities.
• Built-in speakers (2 x 14 W).
• Removable pedestal stand and Video Electronics Standards Association (VESA™)
100 mm mounting holes for flexible mounting solutions.
• Ultra-thin bezel minimizes the bezel gap during multi-monitor usage, enabling
easier set up with an elegant viewing experience.
• Extensive digital connectivity with DP helps future-proof your monitor.
• ThunderboltTM 4 to supply power to compatible notebook while receiving video
signal.
• ThunderboltTM 4 and RJ45 ports enable a single-cable, network-connected
experience.
• Plug and play capability if supported by your computer.
• On-Screen Display (OSD) adjustments for ease of set-up and screen
optimization.

About your monitor | 9
• Power and OSD buttons lock.
• Security lock slot.
• Stand lock.
• Power consumption ≤0.26W in Standby Mode.
• Supports Picture by Picture (PBP) and Picture in Picture (PIP) Select mode.
• Allow user to switch USB KVM function in PBP/PIP mode.
• The monitor is designed with Dell Power Button Sync (DPBS) feature to control
PC system power state from monitor power button.
• Premium Panel Exchange for peace of mind.
• Optimize eye comfort with a flicker-free screen and ComfortView Plus feature.
• This monitor uses low blue light panel. When the monitor is reset to factory
settings or default setting (Preset mode: Standard), it works in compliance
with TUV Rheinland (hardware solutions provider).
• Decreases the level of hazard blue light emitted from the screen to make viewing
more comfortable for your eyes.
• The monitor adopts Flicker-Free technology, which clears the eye visible flicker,
brings comfort viewing experience and preventing users suffer from eye strain
and fatigue.
• Certified for Windows Hello®(Face Authentication) and supports Microsoft
Cortana®.
• Additional customization using Dell Peripheral Manager.
WARNING: The possible long-term effects of blue light emission from the
monitor may cause damage to the eyes, which includes but is not limited to
eye fatigue and digital eyestrain. ComfortView Plus feature is designed to
reduce the amount of blue light emitted from the monitor to optimize eye
comfort.

10 | About your monitor
Identifying parts and controls
Front view
88
1 2 3 54 6 7
9 10 11 12 13 16 14 15
Label Description Use
1,7 Microphones Monitor microphones (Mic).
2IR LED Indicator of infrared (IR).
3RGB Camera Transmits your image in a video conference.
4Proximity Sensor The human presence wake & lock feature.
5Webcam LED
indicator
Indicator of Webcam. It will light up in white when
webcam is in use.
6IR Camera The face recognition feature.
8Built-in speakers To output the sound from audio input.

About your monitor | 11
9Hookswitch & LED LED will blink in green when there is an incoming
Teams/Skype for Business (SfB) call.
LED will light up in static green during Teams/Skype
for Business (SfB) call.
Short press to answer / end call.
Long press to reject incoming call.
10 Volume down & LED Short press for 2 unit volume decrement.
Long press for continuous volume decrement.
11 Volume up & LED Short press for 2 unit volume increment.
Long press for continuous volume increment.
12 Microphone mute
& LED
Press to mute and unmute microphone.
LED will light up in static red when mic is muted.
LED will go dark when mic is enabled/unmuted.
13 Camera Mute & LED Press to lock and unlock camera shutter.
If locked, icon will light up in red, no software can
override and open camera shutter to use the camera.
If unlocked, icon will not light up, software can open
camera shutter to use the camera when it’s needed.
NOTE: This camera disable button must not be
confused with “Webcam and presence sensor:
enable / disable” in OSD.
Disabling “webcam & presence sensor” will turn off
the whole webcam module, webcam and sensor will
not appear in the system.
14 USB Type-C
downstream port
(USB 3.2 Gen2)
Port with icon supports 5 V/3 A.
Connect your USB device. You can use these ports
only after you have connected the USB cable (Type-A
to Type-C or ThunderboltTM 4) from the computer to
the monitor.
NOTE: This port is downstream only and unable to
broadcast video or sound to the display or speakers.
15 Super speed USB 10
Gbps (USB 3.2
Gen2)
Connect your USB device. You can use these ports
only after you have connected the USB cable from the
computer to the monitor.
Port 15 with battery icon supports Battery
Charging Rev. 1.2.
16 Power LED indicator Solid white light indicates the monitor is turned on and
functioning normally. Breathing white light indicates
the monitor is in Standby Mode.

12 | About your monitor
Back view
7
1
2
3
6
5
4
Label Description Use
1VESA mounting holes (100 mm
x 100 mm-behind attached
VESA cover)
Wall mount monitor using VESA-
compatible wall mount kit (100 mm x 100
mm).
2Regulatory label Lists the regulatory approvals.
3Stand release button Releases stand from the monitor.
4Power On/Off button To turn the monitor on or off.
5Joystick Use it to control the OSD menu.
For more information, see Operating the
Monitor.
6Mac address, Barcode, serial
number, and Service Tag label
Refer to this label if you need to contact Dell
for technical support. The Service Tag is a
unique alphanumeric identifier that enables
Dell service technicians to identify the
hardware components in your computer and
access warranty information.
7Cable-management slot Use to organize cables by inserting them
through the slot.

About your monitor | 13
Bottom view
1 4 5 6 7 8
13
32 11 12910
Label Description Use
1Security lock slot
(based on
Kensington
Security SlotTM)
Secures monitor with security cable lock (sold separately)
2Power connector Connect the power cable.
3HDMI port Connect your computer with the HDMI cable.
4mDP Connect your computer with the mDP to mDP cable.
5ThunderboltTM 4
downstream
ThunderboltTM 4 downstream port only suitable for video
output under Daisy chain, Connecting the monitor for
TBT daisy chain.
NOTE:
1) Thunderbolt™ 4 up to 40Gbs bandwidth;
2) Supports up to two 6K monitors through the Daisy
chain;
3) The highest power output up to 15W;
4) USB-C downstream port supports 5V/3A.
6USB-C upstream
port
Connect the USB cable that comes with your monitor to
the computer. Once this cable is connected, you can use
the USB downstream connectors on the monitor.

14 | About your monitor
7ThunderboltTM 4
upstream
Connect to your computer using the ThunderboltTM cable.
The ThunderboltTM 4 upstream offer the fastest transfer
rate (USB 4 40Gbps), TBT mode and the alternate mode
with DP 1.4 support the following, and PD 28 V/5 A,
20V/4.5A, 15 V/3 A, 9 V/3 A, 5 V/3 A.
Maximum resolution of 6144 x 3456 at 60 Hz (DSC)
The ThunderboltTM 4 upstream power is more than 100W,
the connected equipment and accessory cables should
have fire enclosure of V1 level or higher and VW-1 rating
wire.
This model will feature ThunderboltTM 4.0 technology
and will have a 140W power delivery, it is recommended
for use the following Dell’s products that meet the fire
enclosures.
NOTE: ThunderboltTM 4 upstream is not supported on
Windows versions that are prior to Windows 10.
8,9,
10,11
Super speed USB
10 Gbps (USB 3.2
Gen2)
Connect your USB device. You can use these ports
only after you have connected the USB cable from the
computer to the monitor.
12 RJ-45 connector
(2.5G)
Connect Internet. You can surf Internet via RJ45 only
after you have connected the USB cable (Type-A to
Type-C or ThunderboltTM 4) from the computer to the
monitor.
13 Stand lock Lock the stand to the monitor using a M3 x 8 mm screw
(screw not included).

About your monitor | 15
Monitor specifications
Screen type Active matrix - TFT LCD
Panel Type In-plane switching Technology
Aspect ratio 16:9
Viewable image dimensions
Diagonal 79.94 cm
(31.5 in.)
Active Area
Horizontal 696.73 mm
(27.43 in.)
Vertical 391.91 mm
(15.43 in.)
Area 273,055.45 mm2
(423.24 in.2)
Pixel pitch 0.1134(H) mm x 0.1134(V) mm
Pixel per inch
(PPI)
223
Viewing angle
Horizontal 178° (typical)
Vertical 178° (typical)
Brightness 450 cm/m2(typical)
Contrast ratio 2000 to 1 (typical)
Display screen
coating
Anti-glare treatment of the front polarizer (3H) hard coating
Backlight LED
Response Time
(Gray to Gray)
5 ms (Fast mode)
8 ms (Normal mode)
Color depth11.07 billion colors
Color gamut2sRGB 100%
Rec.709 100%
DCI-P3 99%
Display-P3 99%

16 | About your monitor
Connectivity • 1 x Mini DP 2.0 (HDCP 2.2)(Supports up to 6K 6144 x 3456
60Hz 10bit, HDR)
• 1 x HDMI (HDCP 2.2)(Supports up to 6K 6144 x 3456 60Hz
10bit FRL, HDR as per specied in HDMI 2.1)
• 1 x ThunderboltTM 4 upstream (EPR PD 140W) with DSC
(Alternate mode with DisplayPort 1.4/1.2, USB 3.2 Gen 2
upstream port, Power Delivery up to 140 W)
• 1 x ThunderboltTM 4 downstream (15W) for video output under
Daisy chain
• 1 x USB Type-C (USB 3.2 Gen 2 upstream port)
• 4 x super speed USB 10 Gbps (USB 3.2 Gen 2)
• 1 x RJ45 (2.5G)
Quick Access:
• 1 x USB-A (USB3.2 Gen 2 10 Gbps) with BC1.2
• 2 x USB Type-C downstream (15 W), USB 3.2 Gen 2 (10 Gbps)
Border width (edge of monitor to active area)
To p
Left/Right
Bottom
42.93 mm
10.35 mm
23.05 mm
Adjustability
Stand
Height 160 mm
Tilt -5° to 21°
Swivel -30° to 30°
Pivot -90° to 90°
Slant NA
Camera
Tilt -20° to 0°
Cable
management
Yes
Dell Display
Manager (DDM)
Compatibility
Easy Arrange
and other key features
Security Security lock slot (cable lock sold separately)

About your monitor | 17
1 Video output from mDP/HDMI port at maximum resolution 6144 x 3456 at 60Hz
is 1.07 billion colors. Video output from ThunderboltTM 4 upstream at maximum
resolution 6144 x 3456 at 60Hz is 1.07 billion colors with DSC.
2At panel native only, under Color Space preset.
Resolution specifications
Horizontal scan
range
30 kHz to 220 kHz
Vertical scan
range
56 Hz to 76 Hz
Maximum preset
resolution
6144 x 3456 at 60 Hz
Video display
capabilities
(HDMI & mDP &
ThunderboltTM 4
alternate mode)
480p, 576p, 720p, 1080i (HDMI only), 1080p, 2160p

18 | About your monitor
Preset display modes
Display mode Horizontal
frequency
(kHz)
Vertical
frequency
(Hz)
Pixel
clock
(MHz)
Sync polarity
(Horizontal/
Vertical)
VESA, 720 x 400
31.47
70
28.32
-/+
VESA, 640 x 480
31.47
60
25.17
-/-
VESA, 640 x 480
37.50
75
31.5
-/-
VESA, 800 x 600
37.88
60
40
+/+
VESA, 800 x 600
46.88
75
49.5
+/+
VESA, 1024 x 768
48.36
60
65
-/-
VESA, 1024 x 768
60.02
75
78.75
+/+
VESA, 1152 x 864
67.50
75
108
+/+
VESA, 1280 x 1024
64.0
60
108
+/+
VESA, 1280 x 1024 80.0 75 135 +/+
VESA, 1600 x 900
55.99
60
118.25
+/+
VESA, 1920 x 1080
67.50
60
148.50
+/+
CVR, 2560 x 1440
88.79
60
241.50
+/+
VESA, 3840 x 2160
133.31
60
533.25
+/-
VESA, 3840 x 2160
135.00
60
594
+/-
VESA, 1280 x 800 49.306 59.91 71 +/+
VESA, 1680 x 1050
64.674
59.883
119
+/+
VESA, 1920 x 1200
74.038
59.95
154
+/+
VESA, 1600 x 1200
75
60
162
+/+
VESA, 3840 x 2160
54
24
297
+/-
VESA, 3840 x 2160
56.25
25
297
+/-
VESA, 3840 x 2160 65.68 30 297 +/-
CVT, 5120 x 2880
177.71
60
952.5
+/-
CVT, 6016 x 3384
208.85
60
1323.25
+/-
CVT, 6144 x 3456
105.14
30
662.75
+/-
CVT, 6144 x 3456
213
60
1378.75
+/-

About your monitor | 19
ThunderboltTM 4 out for daisy chain
OSD Display Info:
Link rate(current)
Maximum external monitor resolution that can be supported
6144 x 3456 at 60 Hz
NOTE: Maximum external monitor resolution with the maximum number
of external monitors supported is 6144 x 3456 at 60Hz only when DSC is
enabled on graphic cards or with graphic cards that support DSC.

20 | About your monitor
Unified Communications (UC) Platform Compatibility List
The table below highlights the call functions that work on the Dell Video Conferencing
Monitor – U3224KB when using the following UC platforms#.
Call Functions Answer call End call Reject call Adjust Speaker
volume down
Adjust Speaker
volume up
Mute/
Unmute
Microphone
Button Hookswitch Hookswitch Hookswitch Volume Down Volume Up Mute
Microsoft
Teams
√√√√ √√
Skype for
Business
√√√√ √√
Zoom × × × √ √ √*
Google
Hangouts
× × × √ √ √*
BlueJeans × × × √ √ √*
Cisco Webex × × × √ √ √*
FaceTime × × × √ √ √*
Slack × × × √ √ √*
GoTo Meeting × × × √ √ √*
Google Meet × × × √ √ √*
Lifesize × × × √ √ √*
Discord × × × √ √ √*
Ring Central × × × √ √ √*
√ Call function on the Dell U3224KB works with the UC platform
× Call function on the Dell U3224KB does not work with the UC platform
* Mute function on the Dell U3224KB works by pressing the Mute button, but the
Mute Icon on the UC platform is not sync (Icon shows unmute).
#On Windows 10 64 Bit OS