Kongsberg Simrad MOS-33 TFT Midi Operator Station 8200635
Kongsberg Simrad MOS-33 TFT Midi Operator Station, a multipurpose operator station designed for alarm monitoring and process control.
The MOS-33 features a 5.7-inch color TFT display and an integrated keyboard, providing a complete HMI solution in a single unit.
It is built to withstand extreme temperatures, shock, and vibration, making it suitable for installation anywhere on a vessel, from the bridge to the engine room or even on deck.
Technical Specifications
Display: 5.7-inch color TFT, 320 x 240 pixels.
Power: 18-32 VDC.
Operating Temperature: -15°C to +70°C.
Approvals: DNV Class B, IACS E10.
Interface: Integrated keyboard with menu, function, and alphanumeric keys.
Applications & Compatibility
Alarm and process monitoring in space-constrained locations.
Dedicated control panel for specific machinery or remote alarm panel.
Use as a remote operator station in harsh environments (engine rooms, on deck).
The Kongsberg Simrad MOS-33 (Midi Operator Station) is a compact, multipurpose operator panel designed for monitoring and control in maritime environments.
1 It is often used as a remote alarm station or a secondary control interface for systems like K-Chief 600. AutoChief, and Bridge Watch Monitoring Systems (BWMS).2
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Unlike larger PC-based operator stations, the MOS-33 is a “midi” unit, meaning it is ruggedized for installation in harsh areas like engine rooms or even out on deck.3
Key Technical Specifications
The MOS-33 integrates both a display and a functional keyboard into a single, compact housing.4
Feature Details
MOS-33
Model Number MOS-33 (often identified by P/N 8200635)
Display 5.7″ TFT Color (320 x 240 pixels)
Power Supply 18–32 VDC (Nominal 24 VDC)
Power Consumption Approx. 10W (can be higher in specific configurations)
Operating Temp -15°C to +70°C (designed for high-heat environments)
Protection IP66 (Front) / IP22 (Rear)
Dimensions 252 mm x 144 mm x 70 mm
Functional Design

MOS-33
The front panel is designed for high-visibility alarm management and simple process control through tactile buttons:
Keyboard Layout: Includes 4 dedicated Function keys (F1–F4), a numeric/alphanumeric keypad, and dedicated navigation keys for menu scrolling.5
Alarm Management: Features large, tactile buttons for Acknowledge (ACK) and Sound Off, allowing for immediate response to system alerts.
Symbol Library: The internal software includes a library of symbols used to display standard mimic diagrams for pumps, valves, and power management.
Relay Outputs: Typically includes 2 relay outputs for local buzzer or lamp control.
Common Applications
Remote Alarm Panel: Placed in cabins or the mess room to alert the crew of engine or system alarms.6
Machinery Control: Used as a local control panel for specific subsystems like a steering gear or compressor.7
Bridge Watch (BWMS): Often serves as the primary setup and reset panel for the Bridge Navigational Watch Alarm System, where it monitors officer alertness.
Troubleshooting & Service Notes
Backlight Dimming: If the screen appears black but the unit has power, the backlight may be failed or dimmed to 0%.
Try pressing the brightness increase shortcut (usually a combination of the ‘Menu’ and arrow keys).
Environmental Damage: While rated for deck use, ensure the removable corner covers used for flush mounting are properly sealed to prevent water ingress behind the console.
Firmware/Configuration: The MOS-33 stores local configuration data. If you are replacing a unit, you may need to transfer the configuration or re-assign its ID on the CAN bus or Serial network for it to communicate with the main DPU


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