HIS HIS-ML23.8 A Series User manual

23.8" PANEL MOUNT INDUSTRIAL MONITOR
USER MANUAL
Model No. HIS-ML23.8- _ _ _ A
REVISION A

2 ML23.8 User Manual, 99182A, April 2022
Table of Contents
Safety and Regulatory Information��������������������������������������������������������������������������������3
FCC Notice �����������������������������������������������������������������������������������������������������������������������������3
Hazardous Locations ��������������������������������������������������������������������������������������������������������������4
Waste Electrical and Electronic Equipment Directive (WEEE) ����������������������������������������������� 4
Mechanical Drawings������������������������������������������������������������������������������������������������������5
Front View�������������������������������������������������������������������������������������������������������������������������������5
Bottom View����������������������������������������������������������������������������������������������������������������������������5
Rear View �������������������������������������������������������������������������������������������������������������������������������6
Side View ��������������������������������������������������������������������������������������������������������������������������������6
Installation Instructions��������������������������������������������������������������������������������������������������7
Step 1: Prepare for Installation ���������������������������������������������������������������������������������������������� 7
Step 2: Bench-test Conguration������������������������������������������������������������������������������������������� 8
Connect Video and Power Cables ����������������������������������������������������������������������������������������������������� 8
Connect and Set Up Touch Screen�������������������������������������������������������������������������������������������������� 10
Step 3: Install into Panel ������������������������������������������������������������������������������������������������������ 13
Video Settings����������������������������������������������������������������������������������������������������������������15
Setting the Timing Mode ������������������������������������������������������������������������������������������������������� 15
Control Panel Buttons����������������������������������������������������������������������������������������������������������� 16
On-Screen Display (OSD) Menus����������������������������������������������������������������������������������������� 18
Picture Menu������������������������������������������������������������������������������������������������������������������������������������ 18
VGA Settings Menu�������������������������������������������������������������������������������������������������������������������������� 20
Setup Menu�������������������������������������������������������������������������������������������������������������������������������������� 21
Cleaning Instructions����������������������������������������������������������������������������������������������������24
Troubleshooting ������������������������������������������������������������������������������������������������������������25
Video Troubleshooting ���������������������������������������������������������������������������������������������������������� 25
Touch Screen Troubleshooting ��������������������������������������������������������������������������������������������� 27
Specications ����������������������������������������������������������������������������������������������������������������29
Display ����������������������������������������������������������������������������������������������������������������������������������29
Environmental����������������������������������������������������������������������������������������������������������������������� 29
Video�������������������������������������������������������������������������������������������������������������������������������������30
Physical ��������������������������������������������������������������������������������������������������������������������������������31
Functional �����������������������������������������������������������������������������������������������������������������������������31
Electrical �������������������������������������������������������������������������������������������������������������������������������32
Compliances and Certications �������������������������������������������������������������������������������������������� 32
Warranty Statement�������������������������������������������������������������������������������������������������������33

Safety and Regulatory Information
ML23.8 User Manual, 99182A, April 2022 3
Safety and Regulatory Information
To prevent re or shock hazard, do not expose live components to rain or moisture.
Dangerously high voltages are present inside the unit� Do not disassemble the
unit. Refer servicing to qualied personnel only. Operator could be exposed to
dangerously high voltage if AC power is not connected properly� Verify all wiring is
properly connected�
This equipment is not intended for use in critical applications where its failure
to operate would create immediate life threatening circumstances� Applications
including, but not limited to, nuclear reactor control, aerospace navigation systems
and life support systems are not appropriate for this product�
This product is intended to be mounted in a suitable cabinet or other enclosure�
The NEMA 4, 4X, or 12 ratings are applicable only when properly installed in a like
rated enclosure�
To be covered by UL 62368-1, the socket-outlet shall be installed near the equipment
and shall be easily accessible�
When using DC power input: The HIS-ML23�8 subject unit is to be powered by a
Listed Power Supply suitable for the application with outputs at SELV/LPS or Class
2 levels rated 10.8-26.4VDC, 2.3 A max. The equipment is not intended to connect
directly to a DC Mains source�
FCC Notice
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications� Operation of this equipment
in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense. Any changes or modications not
expressly approved by the grantee of this device could void the user’s authority to operate
the device�
WARNING!
!

Safety and Regulatory Information
4 ML23.8 User Manual, 99182A, April 2022
Waste Electrical and Electronic Equipment Directive (WEEE)
The following information is only for EU-member states:
The mark shown to the right indicates compliance with the Waste Electrical and
Electronic Equipment Directive 2002/96/EC (WEEE)�
The mark indicates the requirement NOT to dispose of the equipment as unsorted
municipal waste, but use the return and collection systems according to local law. Users
should contact their supplier and check the terms and conditions of the purchase contract�
When purchased directly from Hope Industrial Systems, you may contact technical support
for disposal arrangements.
Hazardous Locations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D; Class II,
Division 2, Groups F and G; Class III; or non-hazardous locations only�
Device is open-type and is to be installed in an enclosure suitable for the environment that
is only accessible with the use of a tool�
FR: Cet équipement peut être utilisé dans la Classe I, Division 2, Groupes A, B, C et
D: Classe II, Division 2, Groupes F et G; et Classe III, endroits hasardeux ou endroits
non-hasardeux seulement� Cet appareil doit être installé dans un enclos adapté à un
environnement accessible uniquement avec l’aide d’un outil.
WARNING – EXPLOSION HAZARD – Do not disconnect equipment unless power has
been removed or the area is known to be non-hazardous�
WARNING – EXPLOSION HAZARD – Substitution of any components may impair
suitability for Class I, II & III, Division 2 Locations�
Any steps marked with this symbol are required to ensure compliance with Class
I, II, III, Division 2 Hazardous Location requirements�
HAZ
LOC

Mechanical Drawings
ML23.8 User Manual, 99182A, April 2022 5
Mechanical Drawings
Front View
Bottom View
376.6 mm
(14.83")
596.8 mm
(23.50")
528.6 mm
(20.81")
298.0 mm
(11.73")
596.8 mm
(23.50")
8.9 mm (0.35")
542.6 mm
(21.37") 46.1 mm (1.81")
(Design to maximum depth
of 63.5 mm to ensure future
compatibility with later revisions
and replacement units.)
55.0 mm
(2.16")

Mechanical Drawings
6 ML23.8 User Manual, 99182A, April 2022
Rear View
Side View
271.3 mm
(10.68") 50.0 mm (1.97")
100 mm VESA
Mounting Pattern
(M4 screws provided,
16 mm maximum
depth of screw)
312.6 mm
(12.31")
8.9 mm
(0.35")
46.1 mm
(1.81")

Installation Instructions
ML23.8 User Manual, 99182A, April 2022 7
Installation Instructions
Step 1: Prepare for Installation
IMPORTANT!
Perform the following steps BEFORE installation of the monitor into the panel.
1� Ensure that sucient power is available.
2� Ensure that sucient space is available to allow for proper air ow into and out of the
unit�
3� Ensure that the air temperature around the unit (top and bottom) will not exceed the
rated specications of the unit.
fThe maximum rated temperature for the HIS-ML23.8 is 50°C (122°F).
fRemember that heat rises – the temperature at the top of the
cabinet will be much hotter than at the bottom if air inside the
enclosure is not actively circulating. Even in a sealed enclosure,
use of a circulation fan can greatly reduce temperature�
fAlso, remember that even though this product is designed to
operate at 50°C, the life span of any electronic device is shortened
when it is consistently operated at high temperatures. Therefore,
it is wise to take steps to keep the temperature of the ambient air
around the unit as low as possible�
4� Ensure that the ambient humidity of the air around the unit does not exceed the
specications of the unit.
fT h e m a x i m u m r a t e d h u m i d i t y f o r t h e H I S - M L 2 3 . 8 i s 9 0 %
non-condensing�
!

Installation Instructions
8 ML23.8 User Manual, 99182A, April 2022
Step 2: Bench-test Conguration
Make sure everything works before installing into the production environment.
TIP!
If using a KVM extender, please refer to the installation instructions included
with the KVM extender module. It is particularly important to bench-test the full
conguration prior to nal installation. This will help to identify and troubleshoot
any system issues while conguration changes may still be easily made.
Connect Video and Power Cables
All monitors are shipped with a VGA to DVI video cable, a VGA to DVI adapter, and a power/
mains cable� The cable ports are located on the rear of the monitor�
Video Connection
DisplayPort connections are supported natively with the integrated DisplayPort connector.
Optional adapters are available for Mini DisplayPort.
An integrated DVI-I connector is used to support both digital (DVI, HDMI) and analog (VGA, RGB)
signals through the same port. VGA signals require use of the provided VGA to DVI adapter.
RGB video sources (BNC, RCA) require additional adapters. HDMI (including Mini and Micro)
can also use the DVI-I port using an adapter.
DISPLAYPORT VIDEO
USB
POWER INPUTS
DVI VIDEO
(HDMI and VGA via Adapter)
(for Touch Screen option)
SERIAL (RS-232)

Installation Instructions
ML23.8 User Manual, 99182A, April 2022 9
After selecting the appropriate interface, connect one end of your video cable to the input port on
the rear of the monitor. If using a DVI cable, secure the screw locks to ensure adequate strain
relief� Connect the other end to the appropriate port on your host computer or other video source�
HAZ
LOC
NOTE: If this step is not performed, the product will not comply with Class I,
II, III, Division 2 Hazardous Location requirements.
TIP!
To avoid incompatibility issues, use only certied video adapters available from
Hope Industrial Systems. Many 3rd-party signal adapters are known to cause
signaling issues�
Power Connection
The HIS-ML23.8 supports both AC and DC power input, but only one should be used to connect
power to the monitor�
AC power input accepts 100 to 240 VAC, 0.6/0.3 A, 60/50 Hz. Loosen the retaining clip for the
power cable on the rear of the monitor� Connect the AC power cable to the power input port on
the monitor then retighten the retaining clip. Connect the other end into a nearby outlet.
HAZ
LOC
NOTE: If the retaining clip screw is not tightened, the product will not
comply with Class I, II, III, Division 2 Hazardous Location requirement.
DC power input accepts 10�8 to 26�4 VDC, 2�3 to 0�9 A, Class 2 or SELV/LPS�
1� With main power disconnected, hook up incoming power
wires to the DC input terminal blocks according to the label
markings. Securely tighten terminal block screws.
2� Plug the connector into the unit and secure by tightening the
two side screws�
3� Earth and shield grounds should be connected via the
adjacent chassis screw designated with this symbol:
HAZ
LOC
NOTE: If steps 1 and 2 are not performed, the product will not comply
with Class I, II, III, Division 2 Hazardous Location requirements.

Installation Instructions
10 ML23.8 User Manual, 99182A, April 2022
Connect and Set Up Touch Screen
The HIS-ML23.8 display is available with 3 dierent touch screen technologies: Single-Touch
Resistive, Multi-Touch Resistive, and Projected Capacitive (PCAP). Touch screen conguration
steps vary based on the model�
If you ordered a touch screen monitor, a USB cable is supplied for the touch screen interface�
For units with a touch screen Serial (RS-232) interface, a serial cable may be ordered separately�
Multi-Touch Resistive Touch Screen Models (HIS-ML23�8-FRVA)
Hope Industrial Multi-Touch Resistive models are pre-calibrated at the factory and do not require
recalibration in normal use�
These models do not require driver installation for most operating systems and are recognized as
touch-screen devices by recent Windows operating systems.
Using Windows, options such as hold-to-right-click are available in Windows Tablet settings.
USB Connection and Strain Relief
An integrated cable retention bracket is installed on the monitor's USB port and secures
the connection. Insert the USB cable connector through the retention bracket and into
the monitor� Connect the other end to the USB port on the host computer�
Multi-Touch PCAP Touch Screen Models (HIS-ML23�8-FPVA and HIS-ML23�8-FSVA)
Multi-Touch PCAP models are also precalibrated at the factory and do not require calibration in
normal use. These models do not require drivers for most operating systems.
Using Windows, options such as hold-to-right-click are available in Windows Tablet settings.
More advanced touch screen conguration is available using an optional driver. Contact Hope
Industrial support for more information�
USB Connection and Strain Relief
An integrated cable retention bracket is installed on the monitor's USB port and secures
the connection. Insert the USB cable connector through the retention bracket and into
the monitor� Connect the other end to the USB port on the host computer�
Single-Touch Resistive Touch Screen Models (HIS-ML23�8-FTVA)
Single-Touch Resistive models require the installation of a driver for calibration and access to

Installation Instructions
ML23.8 User Manual, 99182A, April 2022 11
advanced conguration options.
Contact Hope Industrial Systems if you require a CD-ROM with documentation and touch screen
drivers. For a full list of downloadable drivers, please check the following address:
https://www�HopeIndustrial�com/support/drivers/
IMPORTANT!
Only Single-Touch Resistive Touch Screen Models (HIS-ML23.8-FTVA) require a
touch screen driver to be installed on the host computer� No driver is needed for
Multi-Touch Resistive or PCAP models in most circumstances�
Single-Touch Resistive models include both USB and Serial (RS-232) ports for touch screen
operation but only one of these should be connected to the computer� When both ports are
available on the computer, USB is preferred�
Installing the Driver: USB Connections
1� Do not plug the USB connection into the computer until the driver installation is
complete� If the USB connection has already been made, disconnect at this point�
2� Download the appropriate driver for your operating system from the address listed
above� Click to "Run" the software when prompted�
3� Follow the on screen prompts to complete the driver installation�
4� Once the driver has been successfully installed, the USB connection can be made by
inserting the connector through the monitor's integrated cable retention bracket and
into the USB port� Connect the other end to the USB port on the host computer�
5� Proceed with Calibration (below)�
Note: detailed and up-to-date USB driver installation instructions can be found at the
following address:
https://www.hopeindustrial.com/blog/calibrating-a-touch-screen/

Installation Instructions
12 ML23.8 User Manual, 99182A, April 2022
Installing the Driver: Serial (RS-232) Connections
Serial Connections must be made before installing the driver.
1� Connect one end of the Serial cable to the Serial input port on the rear of the monitor�
Connect the other end to the Serial port on the host computer. Tighten the screw
locks on the cable connectors to ensure adequate strain relief�
HAZ
LOC
NOTE: If this step is not performed, the product will not comply with
Class I, II, III, Division 2 Hazardous Location requirements.
2� Download the appropriate driver for your operating system from the address listed
above� Click to "Run" the software when prompted� Follow the on screen prompts to
complete the driver installation�
3� Proceed with Calibration (below)�
Calibrate the Touch Screen (Single-Touch Resistive Models Only)
Once the driver has nished installing, you are ready to calibrate the touch screen.
Open the Windows Control Panel and ensure the "View by" option is set to
"Small icons" in the top right of the window. Click the Elo icon to open the Elo
Touchscreen utility�
Under the "General" tab, click the "Align" button to start the calibration routine.

Installation Instructions
ML23.8 User Manual, 99182A, April 2022 13
1� Refer to the drawing below for the cutout dimensions for the HIS-ML23.8.
2�
342.4 mm
(13.48")
566.7 mm
(22.31")
Locate position in panel for mounting of the monitor. Ensure that there is adequate
space behind the panel� Allow 25�4 mm (1�0") extra space behind and on each side
for air ventilation�
Step 3: Install into Panel
Once you have completed the full bench-test conguration and conrmed that all components are
working properly, you are ready to install the monitor into its panel cutout.
WARNING!
Hope Industrial Systems will not assume liability for damage to internal electronics
due to improper installation� Contact Hope Industrial Systems if you need additional
assistance�
!

Installation Instructions
14 ML23.8 User Manual, 99182A, April 2022
3� Cut a rectangular hole in the panel.
fCutout Dimensions (W x H) for the HIS-ML23.8:
566.7 mm x 342.4 mm (22.31" x 13.48"); ± 0.5 mm (0.020")
4� Clean and deburr the panel hole�
5� Separate the rear collar from the monitor by removing the 10 nuts.
6� Refer to the enclosure mounting diagram below.
7� Insert the unit into the front of the panel and re-attach the collar�
NOTE: Contact Hope Industrial Systems if for any reason your application does
not allow for installation of the collar�
8� Tighten all 10 nuts to a torque of 1.13-1.7 N-m (10-15 inch-pounds) to ensure a
watertight seal between the bezel gasket on the monitor and the equipment panel.
Go around all nuts twice to ensure an even compression on gasket.
NOTE: If a torque wrench is not available, tighten all nuts evenly until molded
frame sits ush against front of the panel. Do not overtighten.

Video Settings
ML23.8 User Manual, 99182A, April 2022 15
Video Settings
Setting the Timing Mode
Setting the timing mode of your computer graphics adapter (or other video source) is important
for maximizing the quality of the screen image and for minimizing eye strain. The timing mode
consists of the resolution (e.g. 1920 x 1080) and refresh rate (or vertical frequency; e.g. 60 Hz).
After setting the timing mode, use the On-Screen Display (OSD) controls to adjust the screen
image.
TIP!
For the best picture quality, set your computer graphics adapter timing mode to:
VESA 1920 x 1080 @ 60 Hz
Please refer to the computer graphics adapter manufacturer's manual for instructions on setting
the resolution and timing mode. In Microsoft Windows, these settings may be found at the
following location:
f2000, XP: Control Panel > Display > Settings
fVista: Control Panel > Personalization > Display Settings
fWindows 7, 8: Control Panel > Appearance and Personalization >
Adjust Screen Resolution
fWindows 10, 11: Start > Settings > System > Display

Video Settings
16 ML23.8 User Manual, 99182A, April 2022
Control Panel Buttons
Use the control panel buttons located on the back of the monitor to display and adjust various
settings on the On-Screen Display (OSD) menu.
1� To open the OSD menu, press the Menu button.
NOTE: All OSD menus and adjustments screens disappear automatically after
60 seconds. This is adjustable through the OSD Time out setting in the Setup
menu�
2� To navigate through the main OSD menu, press the left [◄] or right [►] button.
3� To select a control to adjust, press the Select [ SEL ] button to navigate down through
the menu�
4� To adjust a selected control, press the left [◄] or right [►] button, or press the right
[►] button to open the submenu for a selected control.
5� To return to the main OSD menu, press the Menu button.
6� To exit the OSD menu, press the Menu button.
CONTROL PANEL
BUTTONS

Video Settings
ML23.8 User Manual, 99182A, April 2022 17
Button Control Functions
Menu • Opens the OSD menu�
• Exits the submenu�
• Exits the OSD menu�
Select /
Navigate Down
When the OSD menu IS NOT displayed:
• Shortcut to Auto setup function�
When the OSD menu IS displayed:
• Navigates down through the OSD menu.
Left / Down /
Brightness
When the OSD menu IS NOT displayed:
• Shortcut to adjust Brightness.
When the OSD menu IS displayed:
• Navigates left in the main OSD menu.
• Decreases adjustments for the selected control�
Right / Up When the OSD menu IS displayed:
• Navigates right in the main OSD menu.
• Displays the submenu for the selected control�
• Increases adjustments for the selected control�
Power Indicator
Light
• LED lit green – power is ON
• LED not lit or lit red – power is OFF
• LED lit orange – monitor is in Standby mode
• LED ashing green – monitor is searching for display
source
Power Turns the monitor on and o.

Video Settings
18 ML23.8 User Manual, 99182A, April 2022
On-Screen Display (OSD) Menus
To open the OSD menu, press the Menu button once.
Main Menu Description
Picture Includes the Contrast, Brightness, Sharpness, and Color
functions�
VGA Settings Includes the Timing, Auto setup, H total, V position, H position,
and Phase functions�
Setup Includes the Inputs, OSD, Info, Reset to factory defaults, Source
scan, and Advanced Setup functions�
Picture Menu
The Picture menu includes the Contrast, Brightness, Sharpness, and Color functions.
Picture Menu Description
Contrast Adjusts the dierence between the image background (black
level) and the foreground (white level).
Brightness • Adjusts the background black level of the screen image.
• This feature may also be accessed by pressing the left [◄]
button outside of the OSD menu�
Sharpness Adjusts the clarity of the screen to make the image sharper or
softer�

Video Settings
ML23.8 User Manual, 99182A, April 2022 19
Color Menu
The Color submenu in the Picture menu includes the Auto color, Theme mode, Gamma, Color
balance, and User color functions�
Color Menu Description
Auto color Auto color is an auto adjust routine to compensate, for example,
analog signal level drops on long VGA cables. It needs an input
signal with a picture with black and full color content (white,
red, blue, green). Please contact our support team for further
details�
NOTE: The Auto color function is only available when using the
analog VGA connector.
Theme mode Allows the user to select from three image modes for dierent
usage, as well as the default "O" setting:
• Multimedia optimizes the screen for multimedia
applications, such as video playback�
• Desktop optimizes the screen for desktop applications�
• Gaming optimizes the screen for gaming applications.
Gamma Adjusts the gamma value from 0 to 7. High gamma values
display whitish images and low gamma values display high
contrast images.

Video Settings
20 ML23.8 User Manual, 99182A, April 2022
Color Menu Description
Color balance Provides several color adjustment modes, including preset
color temperatures and a User color mode that allows individual
adjustment of Red, Green, and Blue. The factory default setting
for this product is Normal�
• User color allows individual adjustment of Red, Green, and
Blue�
• Warm adds red to the screen for warmer white and richer
red�
• Normal is the factory default setting.
• Cold adds blue to the screen image for cooler white.
VGA Settings Menu
The VGA Settings menu includes the Timing, Auto setup, H total, V position, H position, and
Phase functions�
VGA Settings Menu Description
Timing Displays the timing mode (video signal input) coming from the
graphics card in the computer.
Auto setup • Automatically sizes, centers, and ne tunes the video signal
to eliminate waviness and distortion�
• This feature may also be accessed by pressing the Select
[ SEL ] button outside of the OSD menu.
This manual suits for next models
4
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