dahua E230C Series LED Monitor User Manual

dahua E230C Series LED Monitor

Specifications

• Models : DHI-LM24-E230C, DHI-LM27-E230C, DHI-LM32-E230C
• Manufacturer : ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
• Version : V1.0.0
• Release Time : March 2023

Product Information
The E230C Series LED Monitor is a high-quality display device designed for various applications. It offers excellent picture quality and a user-friendly interface, making it suitable for both personal and professional use.

Foreword
The User’s Manual provides detailed information on the installation, functions, and operations of the E230C Series LED Monitor. It is essential to read the manual carefully before using the device and keep it safe for future reference.

Safety Instructions
The manual includes important safety instructions to ensure safe usage of the E230C Series LED Monitor. The following signal words are used:

result in death or serious injury.
WARNING| Indicates a medium or low potential hazard which, if not
avoided, could result in slight or moderate injury.
CAUTION| Indicates a potential risk which, if not avoided, could result
in property damage, data loss, reductions in performance, or
unpredictable results.
TIPS| Provides methods to help you solve a problem or save time.
NOTE| Provides additional information as a supplement to the
text.

Privacy Protection Notice

As the user or data controller of the E230C Series LED Monitor, it is important to comply with local privacy protection laws and regulations. When collecting personal data such as face, fingerprints, or license plate numbers, necessary measures should
be implemented to protect the legitimate rights and interests of individuals. These measures may include providing clear and visible identification of surveillance areas and required contact information.

About the Manual

The User’s Manual serves as a reference guide for the E230C Series LED Monitor. It is important to note the following:

• Slight differences may exist between the manual and the actual product.

• Operating the product in ways not in compliance with the manual may result in liabilities and losses.

• The manual will be updated according to the latest laws and regulations. For detailed information, refer to the paper user’s
  manual, CD-ROM, QR code, or official website.

• Designs and software are subject to change without notice, which may result in differences between the actual product and the manual. Contact customer service for the latest program and supplementary documentation.

• Errors or deviations in the print or description of functions, operations, and technical data may occur. In case of doubt or dispute, the manufacturer reserves the right of final explanation.

• If the manual in PDF format cannot be opened, upgrade the reader software or try other mainstream reader software.

• All trademarks, registered trademarks, and company names mentioned in the manual are properties of their respective owners.

• Contact the supplier or customer service for assistance with any device-related problems.

• In case of uncertainty or controversy, the manufacturer reserves the right of final explanation.

E230C Series LED Monitor

User’s Manual

Foreword

General

This manual introduces the installation, functions and operations of the E230C Series LED Monitor Devices (hereinafter referred to as the “Devices”). Read carefully before using the device, and keep the manual safe for future reference.

Models DHI-LM24-E230C, DHI-LM27-E230C,DHI-LM32-E230C.

Safety Instructions

The following signal words might appear in the manual.

Revision History

Privacy Protection Notice

As the device user or data controller, you might collect the personal data of others such as their face, fingerprints, and license plate number. You need to be in compliance with your local privacy protection laws and regulations to protect the legitimate rights and interests of other people by implementing measures which include but are not limited: Providing clear and visible identification to inform people of the existence of the surveillance area and provide required contact information.

About the Manual

• The manual is for reference only. Slight differences might be found between the manual and the product.
• We are not liable for losses incurred due to operating the product in ways that are not in compliance with the manual.
• The manual will be updated according to the latest laws and regulations of related jurisdictions. For detailed information, see the paper user’s manual, use our CD-ROM, scan the QR code or visit our official website. The manual is for reference only. Slight differences might be found between the electronic version and the paper version.
• All designs and software are subject to change without prior written notice. Product updates might result in some differences appearing between the actual product and the manual. Please contact customer service for the latest program and supplementary documentation.
• There might be errors in the print or deviations in the description of the functions, operations and technical data. If there is any doubt or dispute, we reserve the right of final explanation.
• Upgrade the reader software or try other mainstream reader software if the manual (in PDF format) cannot be opened.
• All trademarks, registered trademarks and company names in the manual are properties of their respective owners.
• Please visit our website, contact the supplier or customer service if any problems occur while using the device.
• If there is any uncertainty or controversy, we reserve the right of final explanation.

Important Safeguards and Warnings

This section introduces content covering the proper handling of the device, hazard prevention, and prevention of property damage. Read carefully before using the device, and comply with the guidelines when using it.

Operation Requirements

WARNING

• Do not tread on or squeeze the power line, especially the plug or connection point of the power line to the product.
• Please firmly grasp the plug of the connecting line when inserting and removing. Pulling the connecting line might cause damage to it.
• Turn off the power when cleaning the product.
• Do not touch any fixed components inside the product. Failure to do so can result in damage to the product or person.
• Make sure that the power supply of the device works properly before use.
• Do not pull out the power cable of the device while it is powered on.
• Only use the device within the rated power range.
• Transport, use and store the device under allowed humidity and temperature conditions.
• Prevent liquids from splashing or dripping on the device. Make sure that there are no objects filled with liquid on top of the device to avoid liquids flowing into it.
• Do not disassemble the device.
• Notice and observe all the warnings and illustrations.
• Make sure the power is turned off and the connecting lines are removed when moving the product.
• Do not use uncertified connecting lines, which might cause equipment failure.
• Avoid collisions with the product. This may cause equipment failure.
• Please turn off power for safety if not using the product for a long time.

Installation Requirements

WARNING

• Connect the device to the adapter before power on.
• Strictly abide by local electrical safety standards, and make sure that the voltage in the area is steady and conforms to the power requirements of the device.
• Do not connect the device to more than one power supply. Otherwise, the device might become damaged.
• Do not hang or lean on the product. Doing so can cause the product to fall or become damaged. It may also cause injury to people. Pay special attention when children are nearby.
• If the product is installed on the wall, please make sure the wall’s load bearing capacity is sufficient. To avoid falling and injuring people, install according to the included instructions with mounting hardware.
• Do not put the product in flammable or corrosive gaseous environment, which may cause fire or damage the product. Placing the product in proximity to flammable gas can easily result in a dangerous explosion.
• Observe all safety procedures and wear required protective equipment provided for your use while working at heights.
• Do not expose the device to direct sunlight or heat sources.
• Do not install the device in humid, dusty or smoky places.
• Install the device in a well-ventilated place, and do not block the ventilator of the device.
• Use the power adapter or case power supply provided by the device manufacturer.
• The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and be no higher than PS2. Note that the power supply requirements are subject to the device label.
• Connect class I electrical appliances to a power socket with protective earthing.
• Do not block the ventilation opening. Install the product according to this handbook.
• Do not place any items on the product. The product may be damaged if foreign objects enter the internal unit.
• Failure to properly secure all screws during installation can result in a fall of the product. Ensure all mounting hardware and other installation accessories are properly secured during installation.
• Mounted height <2m.
• Protective earthing terminal. The apparatus should be connected to a mains socket outlet with a protective earthing connection.
• Alternating Current.

Maintenance Requirements

WARNING

• Cut off power and the connecting line immediately and contact the after-sales service center if the product or the connecting line is damaged for some reason. Continued use without maintenance might cause smoking or off-odor.
• Please turn off power or unplug the power cable immediately if there is smoking, off-odor, or abnormal noise. Contact the after-sales service center for maintenance after confirming there is no more smoke or odor. Further use could result in fire.
• Do not adjust, maintain or modify if you do not have appropriate qualifications.
• Do not open or remove the rear cover, box or cover board of the product. Please contact the dealer or after-sales service center when in need of adjustment or maintenance.
• Only qualified service people can maintain. If the product gets any kind of damage, such as damage to the plug, foreign matter or liquid into the unit, exposure to rain or humidity, loss of function, or dropped, please contact dealer or after-sales service center.
• Be careful during maintenance of product even if the power is off. Some components are equipped with UPS, and can continue to supply power which is dangerous to people.

Packing List

DHI-LM24-E230C/DHI-LM27-E230C

Table 1-1 Packing list

The above appendix products are for reference only, the supporting products of different models of monitors may be slightly different from those in the figure, and everything is subject to reality.

DHI-LM32-E230C
Table 1-2 Packing list description

The above appendix products are for reference only, the supporting products of different models of monitors may be slightly different from those in the figure, and everything is subject to reality.

Monitor Adjustments

Some displays can be angled by tilting forward and backward, and typically, it can tilt 5±2° forward and 15±2° backwards. The specific adjustment function is subject to the adjustment function of the actual model.

• Tilting angle: -5.0°(±2.0°)- +15°(±2.0°).
• When adjusting the angle of the monitor, be sure not to touch or press the area of the screen. The above figure is for reference only, and everything is subject to the actual adjustment function.

Button Description

DHI-LM24-E230C/DHI-LM27-E230C

Table 3-1 Indicator and button description

The above content is for reference only, and everything is subject to actual conditions.

DHI-LM32-E230C

Table 3-2 Indicator and button description

The above content is for reference only, and everything is subject to actual conditions.

Cable Connection

DHI-LM24-E230C / DHI-LM27-E230

Input and output ports

to the

HDMI OUT interface of a PC.

AUDIO OUT| x1/ Use to connect with external sound output devices such as headphones or

earphones.

The above content is for reference only, and everything is subject to actual conditions.

DHI-LM32-E230C

Figure 4-4 Input and output ports

to the HDMI OUT interface of a PC.
AUDIO OUT| x1/ Use to connect with external sound output devices such as headphones or earphones.

The above ports are for reference only, the actual ports of different types of monitors may be slightly different from the ports in the figure, and everything is subject to the ports and functions of the  actual product.

Menu Description

• The color and shape of the OSD menu of the actual computer may be slightly different from that shown in the figure, and everything that has been actually displayed shall prevail.
• Specifications of the OSD menu may change with improvements of functions without prior notice.

The on-screen display (OSD) menu can be used to adjust the settings of the monitor and is displayed on the screen after turning on the monitor and pressing the button.

1. Step 1 Press one of the buttons to activate the Navigation window.
   Figure 5-1 Navigation window
   Table 5-1 Icon function
   

2. Step 2 Press In to enter the OSD screen.

3. Step 3 Press Vora to browse through the functions.

   • Select the desired function, then press the button to enter the submenu.
   • Press  to browse the sub menus, and then press the key to confirm the selection of the desired function
   • Press or to select an option, then press to confirm the setting and exit the current menu

4. Step 4 Press to exit the menu interface.

Lighting effect control and Game Crosshair

1. Step 1 Press any one of the buttons ) to activate the navigation window.

2. Step 2 Press button to quickly switch between light effect control modes and choose the light effect mode that best suits vow
   Figure 6-2 Lighting effect control.

3. Step 3 Press button to switch Game plus modes. Choose the crosshair icon best suited for your game. These game icons are primarily designed to optimize your aim during shooting games, though they can be used for other scenarios.
   Figure 6-3 Game Crosshair
   

Operation Menu(OSD) Function Descriptions

Figure 7-1 OSD menu description

IMAGE

| H. POSITION| 0-100
V.POSITION| 0-100
CLOCK| 0-100
PHASE| 0-100
ASPECT| WIDE/AUTO/4:3
COLOR TEMP.| COLOR TEMP.| WARM/COOL/USER
RED| 0-100
GREEN| 0-100
BLUE| 0-100
OSD SETTING| LANGUAGE| ENGLISH
OSD H. POS.| 0-100
OSD V. POS.| 0-100
OSD TIMER| 5-60
TRANSPAREN

CY

| 0-100
RESET| IMAGE AUTO ADJUST| –
COLOR AUTO ADJUST| –
RESET| –
MPRT| OFF/ON
MISC| SIGNAL

SOURCE

| DP/HDMI1/HDMI2
VOLUME| 0-100
LOW BLUE RAY| 0-100
ADAPTIVE- SYNC| ON/OFF
OVER DRIVER| OFF/HIGH/MIDDLE/LOW
LED EFFECT| NORMAL/OFF/FLICKER

The OSD features in the table above are for reference only and may differ from the actual display, so the OSD features of the actual display shall prevail.

Product Specifications

Table 8-1 Product Specifications

Product Model| DHI-LM24-E230C| DHI-LM27-E230C| DHI- LM32-E230C
---|---|---|---
Screen Size| 23.6″| 27″| 31.5″
Aspect Ratio| 16:9| 16:9| 16:9
Viewing Angle| 178°(H) / 178°(V)| 178°(H) / 178°(V)| 178°(H) / 178°(V)
Contrast Ratio| 3000:1 (TYP)| 4000:1 (TYP)| 3000:1 (TYP)
Colors| 16.7M| 16.7M| 16.7M
Resolution| 1920×1080| 1920×1080| 1920×1080
Maximum refresh rate| 165Hz| 165Hz| 165Hz
Product Dimensio ns Lifting

base

| Without

base

| 537.9 x 333.5 x 74

mm

| 613 x 365.2 x 81.6 mm| 712.6 x 422.8 x

120.6mm

With base| 537.9 x 410.1 x 200.4

mm

| 613 x 455.4 x 200.4 mm| 712.6 x 508.5 x

245.1mm

Speaker| No| No| No
Height Range| No| No| No
Rotation Angle| No| No| No
Vertical Angle| No| No| No
Tilting Angle| Forward tilting : 5° ± 2°; Backward tilting: 15° ± 2°
Environmental conditions| Action| Temperature: 0°C~ 40°C (32°F ~ 104°F) Humidity: 10%~90% RH (non-

condensing)

Storage| Temperature: -20°~ 60° (-4°F ~ 140°F) Humidity: 5%~95% RH (non- condensing)

The above parameters are for reference only, and the parameters of the actual model shall prevail.

Appendix 1 Troubleshooting Appendix

Table 1-1 FAO

• Check if the power is on.
• Check if the power cord is connected.

Impossible plug-and-play|

• Check if the function of plug-and-play of the device is compatible with PC.
• Check if the display card is compatible with the plug-and-play function.

Dimming picture| Adjust brightness and contrast.
Flickering picture or picture with ripples| There may be electrical appliances or equipment with electronic

disturbance.

The power indicator light is on (flickering),but the monitor has no pictures.|

• Check if the PC power is on.
• Check if the PC display card is inserted properly.
• Check if the signal cable of the monitor is correctly connected with the PC.
• Check the signal cable plug of the monitor and make sure everypin has no bending.
• Observe the indicator light by pressing the Caps Lock key on the PC
• keyboard and check if the PC is working.

Color shortage (red, green and blue)| Check the signal cable of the monitor and make sure every pin has no

bending.

The picture is not in the middle, or the size is not right| Hot key(A UTO)
Picture with color difference (white looks not white)| Adjust RGB color or reselect color temperature.
Screen font blur under VGA signal| Select the “E” to automatically adjust the image.
Screen color error under VGA signal| Select “Auto color” in OSD to correct under the white output screen.

The above workarounds are for reference only. If you have any problems, please contact the after- sales service center or find a professional to help.

Appendix 2 Cybersecurity Recommendations

Cybersecurity is more than just a buzzword: it’s something that pertains to every device that is connected to the internet. IP video surveillance is not immune to cyber risks, but taking basic steps toward protecting and strengthening networks and networked appliances will make them less susceptible to attacks. Below are some tips and recommendations from Dehua on how to create a more secured security system.

Mandatory actions to be taken for basic device network security

1. Use Strong Passwords
   • Please refer to the following suggestions to set passwords.
   • The length should not be less than 8 characters.
   • Include at least two types of characters; character types include upper and lower case letters, numbers and symbols.
   • Do not contain the account name or the account name in reverse order.
   • Do not use continuous characters, such as 123, abc, etc.
   • Do not use overlapped characters, such as 111, acai, etc.
2. Update Firmware and Client Software in Time
   • According to the standard procedure in Tech-industry, we recommend to keep your device (such as NVR, DVR, IP camera, etc.) firmware up-to-date to ensure the system is equipped with the latest security patches and fixes. When the device is connected to the
   • public network, it is recommended to enable the “auto-check for updates” function to obtain timely information of firmware updates released by the manufacturer.
   • We suggest that you download and use the latest version of client software.

“Nice to have” recommendations to improve your device network security

1. Physical Protection
   We suggest that you perform physical protection to device, especially storage devices. For example, place the device in a special computer room and cabinet, and implement well-done access control permission and key management to prevent unauthorized personnel from carrying out physical contacts such as damaging hardware, unauthorized connection of removable device (such as USB flash disk, serial port), etc.

2. Change Passwords Regularly
   We suggest that you change passwords regularly to reduce the risk of being guessed or cracked.

3. Set and Update Passwords Reset Information Timely
   The device supports password reset function. Please set up related information for password reset in time, including the end user’s mailbox and password protection questions. If the information changes, please modify it in time. When setting password protection questions, it is suggested not to use those that can be easily guessed.

4. Enable Account Lock
   The account lock feature is enabled by default, and we recommend you to keep it on to guarantee the account security. If an attacker attempts to log in with the wrong password several times, the corresponding account and the source IP address will be locked.

5. Change Default HTTP and Other Service Ports
   We suggest you to change default HTTP and other service ports into any set of numbers between 1024–65535, reducing the risk of outsiders being able to guess which ports you are using.

6. Enable HTTPS
   We suggest you to enable HTTPS, so that you visit Web service through a secure communication channel.

7. MAC Address Binding
   We recommend you to bind the IP and MAC address of the gateway to the device, thus reducing the risk of ARP spoofing.

8. Assign Accounts and Privileges Reasonably
   According to business and management requirements, reasonably add users and assign a minimum set of permissions to them.

9. Disable Unnecessary Services and Choose Secure Modes
   If not needed, it is recommended to turn off some services such as SNMP, SMTP, UPnP, etc., to reduce risks.
   If necessary, it is highly recommended that you use safe modes, including but not limited to the following services:

   • SNMP: Choose SNMP v3, and set up strong encryption passwords and authentication passwords.
   • SMTP: Choose TLS to access mailbox server.
   • FTP: Choose SFTP, and set up strong passwords.
   • AP hotspot: Choose WPA2-PSK encryption mode, and set up strong passwords.

10. Audio and Video Encrypted Transmission
    If your audio and video data contents are very important or sensitive, we recommend that you use encrypted transmission function, to reduce the risk of audio and video data being stolen during transmission.
    Reminder: encrypted transmission will cause some loss in transmission efficiency.

11. Secure Auditing

    • Check online users: we suggest that you check online users regularly to see if the device is logged in without authorization.
    • Check device log: By viewing the logs, you can know the IP addresses that were used to log in to your devices and their key operations.

12. Network Log
    Due to the limited storage capacity of the device, the stored log is limited. If you need to save the log for a long time, it is recommended that you enable the network log function to ensure that the critical logs are synchronized to the network log server for tracing.

13. Construct a Safe Network Environment
    In order to better ensure the safety of device and reduce potential cyber risks, we recommend:

    • Disable the port mapping function of the router to avoid direct access to the intranet devices from external network.
    • The network should be partitioned and isolated according to the actual network needs. If there are no communication requirements between two sub networks, it is suggested to use VLAN, network GAP and other technologies to partition the network, so as to achieve the network isolation effect.
    • Establish the 802.1x access authentication system to reduce the risk of unauthorized access to private networks.
    • Enable IP/MAC address filtering function to limit the range of hosts allowed to access the device.

More information

Please visit Dahua official website security emergency response center for security announcements and the latest security recommendations.

ENABLING A SAFER SOCIETY AND SMARTER LIVING

ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD. Address: No. 1399, Binxing Road, Binjiang District, Hangzhou, P. R. China | Website: www.dahuasecurity.com | Postcode: 310053 Email: dhoverseas@dhvisiontech.com | Tel: +86-571-87688888 28933188

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