Xizi Otis 7-Inch Hall Door Horizontal Screen STN700 (OME4351BHW): Premium Landing Display Solution

Proper Usage Methods of Xizi Otis STN700 Display (OME4351BHW)

1. Installation & Commissioning

• First, cut off the elevator power supply and secure the work area to ensure safety. Thoroughly clean the installation position on the elevator hall door (designated area by Xizi Otis) to remove dust, oil stains, and debris, providing a stable mounting base for the display.
• Accurately fix the STN700 (OME4351BHW) to the hall door using matching screws provided by Nanjing Zhuye Elevatorparts. Ensure the display is horizontally aligned (horizontal deviation ≤ 1mm) and the screen surface is flush with the hall door panel, without gaps or looseness. The tightening torque must comply with Xizi Otis’ technical requirements (typically 2–3 N·m) to avoid damaging the display’s internal components or the hall door structure.
• Correct wiring connection: In accordance with the wiring diagram provided by Nanjing Zhuye Elevatorparts and Xizi Otis, connect the display’s power wires (usually DC 12V/24V) and signal wires to the corresponding terminals of the Xizi Otis elevator main controller or hall door control board. Ensure all connections are tight and reliable, and the wire insulation layer is intact to prevent short circuits or poor contact. Pay special attention to the polarity of the power supply and the correctness of signal pin connections to avoid irreversible damage to the display’s internal modules.
• Post-installation commissioning: Restore the elevator power supply and conduct comprehensive functional tests. Verify that the display lights up normally and that all information (floor number, direction indicator, waiting prompts) is displayed clearly and completely. Operate the elevator in inspection mode to confirm that the display synchronously updates the elevator’s real-time running status. Simulate common fault scenarios (e.g., elevator breakdown, door obstruction) to test if the display accurately triggers corresponding fault prompt information. If abnormalities such as dim display, missing content, or delayed signal update occur, recheck the wiring and installation position and adjust promptly.

2. Daily Operation & Routine Inspection

• During daily patrols, observe the display status of the STN700 (OME4351BHW) at each landing. Abnormal phenomena such as no display, flickering, blurred content, garbled characters, or unresponsive status updates indicate potential faults in the display or wiring.
• Conduct weekly visual inspections and cleaning: Use a dry, lint-free microfiber cloth to gently wipe the display surface and aluminum alloy frame, removing dust, fingerprints, and minor stains. Avoid using water, alcohol, acetone, or other corrosive/volatile cleaners that may damage the screen’s anti-glare coating or the frame’s surface. Check the display’s edge, fixing screws, and wiring terminals for cracks, deformation, looseness, or oxidation, and retighten loose screws or clean oxidized terminals in a timely manner.
• Periodically check the wiring connections (after cutting off the power supply). Ensure the wires are not loose, aged, or damaged, and that the connection terminals are secure. Resolve any wiring issues (such as broken wires or loose terminals) immediately to prevent display malfunctions that may confuse passengers.

3. Regular Maintenance

• Every 3 months, conduct a comprehensive inspection of the display’s installation status and wiring connections. Check if the display is loose or displaced due to long-term elevator operation vibration or human contact, and adjust the fixing screws if needed. Use a multimeter to detect the power supply voltage, ensuring it remains within the standard range (typically DC 12V ± 0.5V or 24V ± 1V) to avoid component damage caused by voltage fluctuations.
• Every 6 months, perform a full performance test: Verify the display’s brightness, contrast, and color uniformity. Calibrate the brightness to ensure clear visibility under both strong natural light (e.g., direct sunlight in lobbies) and low-light conditions. Test the fault prompt function by simulating various abnormal elevator states to confirm accurate and timely alerts.
• Annually, arrange professional maintenance with Nanjing Zhuye Elevatorparts’ technical team. Disassemble the display to inspect internal components (including the STN screen module, custom circuit board, and connectors), remove internal dust with professional tools, and replace aging components (such as capacitors or connectors) if necessary. This ensures the long-term stable operation of the display and maintains its performance at the factory standard.

Recommended Replacement Cycle of Xizi Otis STN700 Display (OME4351BHW)

1. Standard Replacement Cycle

2. Scenario-Based Cycle Adjustment

• Harsh Operating Environments: For elevators in high-humidity coastal regions, high-dust construction sites, unventilated high-temperature lobbies, or areas with strong electromagnetic interference (e.g., near industrial machinery), the replacement cycle should be shortened to 4–5 years. Harsh conditions accelerate the aging of STN screen modules, corrosion of custom circuit boards, and damage to the aluminum alloy frame, significantly reducing the display’s reliability and service life.
• Low-Frequency Use Scenarios: For elevators with low usage frequency (e.g., villa elevators, small office buildings with less than 3,000 monthly rides) and stable landing environments, the replacement cycle can be appropriately extended to 7–8 years—provided a professional inspection by Nanjing Zhuye Elevatorparts confirms that the display’s brightness, clarity, signal stability, and structural integrity are intact.

3. Immediate Replacement Conditions

• The display screen is severely cracked, scratched, or the backlight is permanently damaged, resulting in unreadable information that cannot be improved by cleaning or adjustment.
• Persistent faults occur, such as no display, frequent flickering, garbled characters, or failure to update elevator status—issues that cannot be resolved after checking wiring, power supply, and circuit connections.
• The display’s signal response is significantly delayed (exceeding 2 seconds), leading to confusion for passengers and potential safety risks.
• The display fails the annual performance test, and key indicators (brightness, contrast, signal stability) cannot be restored to the standard range even after maintenance.