Place the monitor into the opening, insert the mounting clip into the side slot, and tighten the cross screw by hand. Do not tighten too tightly to avoid damaging the casing.
Installation of large-sized OM-320/430 panel: Do not use clips, but directly use the M4 screw holes on the rear shell (12 on OM-320 and 8 on OM-430), and fix it to the installation panel with at least 8 screws (4 on each side of OM-320), with a maximum depth of 7mm.

OSD menu operation and adjustment skills
The OSD buttons are located on the back of the monitor, with slight differences in layout among different models, but the core functions are similar.
4.1 Key Function Quick Check
Small size (IM-215~270/OM-070~270): Power button, Menu button, Select/Confirm button, Up/Down (+/-) button.
Large size (OM-320/430): independent Auto key, Menu key, up and down selection keys, exit key, power key.
4.2 Common OSD Adjustment Items (Classified by Menu)
Image (Picture)
Backlight: Adjust LED brightness, recommended to adjust when ambient light changes to save power.
Brightness and Contrast: Adjust them together to achieve clear grayscale levels.
Sharpness: Some models (OM-101-270 and IM large size) offer 0-4 levels of adjustment, and should not be too high to prevent the surface from becoming hard.
Auto Dimming: Only available on OM-070~190/215H, automatically adjusts backlight according to ambient light (requires light sensor) when turned on.
Color (Color)
Color temperature: preset 9300K (cold), 6500K (neutral), 5800K (warm), and user-defined (RGB adjustable separately).
Hue/Saturation: Only available on some models, used to fine tune color performance.
Auto Color: Automatically calibrate color parameters under VGA signal.
Display/Advance
Horizontal/Vertical Position (H/V Position), Clock, Phase: Only VGA analog input is valid, used to eliminate screen offset or flicker.
Auto Adjust: One click optimization of VGA signal parameters, recommended to be performed after connecting a new VGA source.
Over Scan: OM-101-270/IM is available in large sizes, with the screen slightly extending beyond the edge when turned on, suitable for certain video sources.
Aspect Ratio: Available in Full, 16:9, 4:3, 5:4 (depending on model) to maintain the original aspect ratio of the image.
Input Source
VGA or HDMI can be manually selected, or Auto Select mode can be turned on.
OSD settings (Other/OSD)
Language: Supports English, French, German, Italian, Spanish, Traditional Chinese, Simplified Chinese, and Japanese.
Transparency: 0-100 levels, to avoid OSD blocking important images.
Menu timeout: Set the delay time (in seconds) for the menu to automatically disappear.
OSD horizontal/vertical position: Adjust the menu position according to personal habits.
Reset: Restore all OSD settings to factory default values (without affecting input signals).
Common troubleshooting and solution strategies
The manual provides a concise troubleshooting table, which can be extended to the following process based on practical experience:
5.1 No Display (Black Screen)
Power check: Confirm that the power adapter is securely plugged into the socket and monitor, and that the power indicator light is on. If the light is not on, check if the adapter is damaged or if the power cord clamp is loose.
Signal line inspection: Confirm that the HDMI/VGA/DVI/DP cables are securely plugged in at both ends and that the host has output a signal (you can try connecting another monitor for testing).
Input source selection: Manually switch to the correct input port through OSD (if automatic selection fails).
Refresh rate exceeding limit: Ensure that the output resolution and timing of the host are within the supported range of the monitor (such as 1920 × 1080 @ 60Hz). Exceeding the range may result in entering standby mode.
Graphics card malfunction: Check if the host graphics card is securely inserted and if the driver is functioning properly.
5.2 Screen abnormalities (splash, flicker, offset)
VGA signal specific: Running Auto Adjust in OSD can usually solve position offset and phase flicker.
Manual fine-tuning: If automatic is ineffective, manually adjust the clock and phase until the characters are clear and there are no vertical stripes.
Check cables: VGA cables that are too long or of poor quality are prone to interference. It is recommended to use shielded cables with a length not exceeding 5 meters. Prioritizing digital signals (HDMI/DP) can avoid such issues.
Resolution matching: Ensure that the output resolution of the host is consistent with the native resolution of the monitor (such as 1920 × 1080), otherwise the image may be stretched or blurred.
5.3 Color distortion
Color temperature setting: Check if the OSD color temperature is mistakenly set to a non-standard value, try switching to 6500K or user-defined and resetting RGB to 50.
Auto Color (VGA): Perform Auto Color calibration.
Cable contact: Poor contact of pins 1, 2, and 3 (RGB) of the VGA plug can cause color cast. Re plug and unplug.
5.4 Touch unresponsive
Confirm that the USB cable is connected to the host and the host recognizes the HID device (touch screen device appears in the device manager).
Try unplugging the USB cable again or replacing the USB port.