Description
Woodward 8440-2165E
Technical Specifications
- Speed Range: 10 to 20,000 RPM selectable.
- Ambient Rating: -40°C to +85°C without derating.
- Input Scaling: Auto-ranging MPU input for various tooth counts.
- Power Supply: Wide-range 18-32 VDC with reverse polarity protection.
- Humidity: 100% RH condensing rated.
Functional Features
- Wide-Range Operation: Maintains accuracy across entire speed range.
- Thermal Protection: Internal temperature monitoring with automatic output derating.
- Conformal Coating: Enhanced PCB protection for corrosive environments.
- Extended Diagnostics: Additional sensors for internal thermal monitoring.
Application Scenarios
Ideal for marine applications, desert installations, and high-speed turboexpanders.
Performance Parameters
- Thermal Stability: <0.005% per °C drift.
- Cold Start: Full operation at -40°C without preheat.
- Altitude: Rated to 5000m without derating.
Material Composition
High-temperature PCB substrate and components. Silicone-based conformal coating for moisture resistance.
Structural Characteristics
- Thermal Vias: Enhanced heat sinking on power components.
- Sealed Connectors: IP67-rated circular connectors.
- Heater Option: Internal PCB heater for cold climate operation.
Working Principle
Operates identically to 8440-2165 but with extended calibration tables and thermal compensation algorithms to maintain accuracy across the wider environmental envelope.
Installation Requirements
- Provide adequate airflow even at high ambient temperatures.
- Use heated enclosures if operating below -30°C for extended periods.
- Seal all cable penetrations to maintain IP rating.
Usage Precautions
- Monitor internal temperature via diagnostics during hot weather.
- Verify heater operation in cold climates before winter.
- Inspect conformal coating annually in corrosive environments.
