Description
METSO A413150
Technical Specifications
- Display type: Segment LCD screen
- Input interface: 4 membrane push buttons
- Communication method: Internal board-to-board serial communication with main control board
- Operating temperature: -40°C to +85°C
- Storage temperature: -40°C to +90°C
- Relative humidity: 5% to 95%, non-condensing
- Mounting: Internal installation behind ND9000 positioner front cover
- Diagnostic functions: Display self-check, button input detection, communication link monitoring with main board
Functional Features
- LCD screen displays real-time valve travel percentage, target setpoint, supply air pressure and device fault codes.
- Four membrane push buttons support local operation including parameter browsing, zero and span calibration, diagnostic test trigger.
- Bidirectional serial communication with A413146 main control board to exchange operating data and operator commands.
- Low power consumption design powered by main control board internal power supply.
- Clear fault code display for fast on-site troubleshooting.
- Support local manual override function for valve stroke test during commissioning.
- Compact form factor matching internal space of ND9000 positioner front cover.
- Power-up self-test of LCD screen and button circuit.
Application Scenarios On-site commissioning of intelligent control valve, local valve stroke verification, field fault diagnosis of ND9000 positioner, maintenance parameter adjustment for pulp, chemical and refinery smart valves.
Performance Parameters
- LCD refresh rate: 2Hz
- Button response time: Less than 100ms
- Communication baud rate: 9600bps internal serial bus
- Operating power consumption: Less than 2mA
Material Composition
- PCB substrate: FR-4 flame retardant printed circuit board with conformal coating
- Display module: Industrial segment LCD
- Button assembly: Polyester membrane switch
- Drive chip: LCD segment driver IC
- Connector: Gold plated pin header
- Protective film: Transparent scratch resistant plastic window
Structural Characteristics Thin rectangular PCB assembly matched with ND9000 front cover cutout. LCD screen aligns with front transparent viewing window. Membrane buttons are arranged on lower part of PCB. Gold plated pin header connects to main control board via short internal harness. The whole assembly is sealed behind front cover to isolate from process gas, dust and moisture.
Working Principle A413150 receives valve operating data from A413146 main control board through internal serial communication. LCD driver chip refreshes screen content to present travel, pressure and fault information. When field technician presses membrane button, button signal is sent to main control board. Main board executes selected operation such as auto-calibration or parameter modification and returns updated data to display board. The board continuously monitors communication link and triggers display warning when communication interruption occurs.
Installation Requirements
- Remove ND9000 positioner front cover and old display assembly.
- Mount A413150 onto front cover mounting posts and align LCD with viewing window.
- Connect internal communication harness between A413150 and main control board.
- Reinstall front cover and sealing gasket.
- Power on positioner and verify LCD screen and button functions.
- Test full stroke calibration through local button operation.
Usage Precautions
- Do not apply heavy pressure on membrane buttons. Excessive force damages membrane switch.
- Avoid scratching transparent LCD viewing window.
- Use anti-static protection during replacement. Static discharge damages display driver chip.
- Do not expose board to liquid or corrosive gas.
- Replace whole assembly when LCD segment failure or button malfunction appears. No field component repair.
- Confirm connector fully seated to avoid intermittent communication.
