The KDU-220 is a high-precision 7-inch touchscreen display unit engineered by Kyma AS for maritime performance monitoring. It serves as the primary human-machine interface (HMI) for the Kyma Shaft Power Meter (KPM) and Ship Performance systems. Designed for the rigorous demands of the engine control room (ECR) or bridge, it provides real-time visualization of critical propulsion data including shaft power, torque, revolutions (RPM), and optional thrust measurements.

 

Technical Specifications

• 📋 Model Name: KDU-220
• 🏢 Manufacturer: Kyma AS (Norway)
• 📺 Display: 7-inch industrial touchscreen
• ⚖️ Weight: Approximately 1.2 kg
• 📏 Dimensions: Standard industrial panel mounting (approx. 210mm x 150mm x 55mm)
• 🌏 Origin: Norway
• ⚡ Power Supply: 12V DC (typically supplied via the system’s power junction box)
• 🔌 Connectivity: RS-422/RS-485 serial communication; supports NMEA0183 and Modbus protocols
• 🛡️ Environmental Rating: Marine-grade rugged design (vibration, shock, and humidity resistant)

Frequently Asked Questions (Q&A)

What is the primary function of the KDU-220? It acts as the central data visualization hub for the Kyma Shaft Power Meter system, allowing engineers to view propulsion efficiency, fuel consumption rates, and real-time power outputs directly from the shaft sensors.

How does it integrate with the propulsion system? The display communicates with the stationary unit of the Shaft Power Sensor (SPS) via an RS-485 serial link, processing the frequency-modulated signals from the shaft ring into human-readable performance metrics.

Is the unit “hot-swappable” or can it be easily replaced? The KDU-220 is a panel-mounted unit. Replacing it involves disconnecting the serial data and power cables and unmounting it from the console. Since it acts as a display and processing unit, you must ensure the new unit is correctly configured with the specific project parameters (e.g., shaft diameter, shear modulus) stored in the previous unit.

What do I do if the screen stops displaying data? First, verify the 12V DC power source coming from the system’s main junction box. Second, inspect the RS-485 serial communication cable for signs of oxidation or damage, which is common in marine environments. If the hardware is powered but the display is frozen, a power cycle is often required to reset the processing unit.

Can it output reports directly? Yes, the KDU series supports data logging and can often be configured to output voyage reports and performance data via an integrated USB port or through serial data exports for external processing.

 

Recommended Series and Related Models

The following components are part of the Kyma performance ecosystem frequently used alongside the KDU-220:

• SPS (Shaft Power Sensor): The primary rotating sensor ring unit
• KPM-P: The permanent shaft power meter system
• KSP (Kyma Ship Performance): Software module for long-term trend analysis
• KDU-200: Previous generation display unit (often used as a legacy reference)
• Kyma Diesel Analyzer: Diagnostic tool for combustion and fuel injection monitoring
• Junction Box (SPS-100): Main power distribution and signal processing hub
• Kyma Diagnostic Toolbox: Software suite for detailed performance analysis
• SHaPoLi Module: Shaft Power Limitation system for EEXI/CII compliance
• Remote Display Units: Secondary slave displays for bridge/cabin monitoring
• Serial-to-Ethernet Gateway: For integrating Kyma data into modern ship IT networks