OKI FD-6111 FIRE DETECTOR
INTRODUCTION
The OKI FD-6111 Fire Detector is a fixed-temperature spot-type heat detector specifically designed for marine fire detection and alarm systems. Manufactured by OKI Electric Disaster Prevention and widely used within Nippon Hakuyo Electronics marine fire alarm installations, the detector activates when the ambient temperature reaches its predetermined operating point, providing reliable fire detection in critical shipboard spaces.
Unlike smoke detectors, the FD-6111 is particularly suitable for areas where dust, oil mist, steam, exhaust fumes, or airborne contaminants may cause nuisance alarms. This makes it an ideal solution for machinery spaces, engine rooms, generator rooms, boiler rooms, purifier rooms, and other demanding marine environments.
The detector plays an important role in protecting crew members, machinery, cargo, and vessel operations by providing early warning of abnormal temperature conditions before a fire incident escalates into a major emergency. Reliable fire detection remains one of the most critical safety requirements under international maritime regulations and classification society requirements.
PRODUCT OVERVIEW
The OKI FD-6111 is a constant-temperature heat detector designed for integration with marine fire alarm systems. The detector continuously monitors ambient temperature and activates an alarm signal when the sensing element reaches its specified operating temperature. Available documentation identifies the FD-6111 as a fixed-temperature detector with a nominal operating temperature of approximately 65°C.
The detector is commonly installed as part of:
- Marine Fire Detection Systems
- Engine Room Fire Alarm Systems
- Local Fire Detection Systems
- Machinery Space Monitoring Systems
- Generator Room Fire Protection Systems
- Boiler Safety Monitoring Systems
Marine fire alarm system documentation confirms the use of FD-6111 detectors within Nippon Hakuyo and OKI fire detection installations onboard vessels.
The detector's robust design enables dependable operation under harsh marine conditions including vibration, humidity, temperature fluctuations, and continuous vessel operation.
KEY FEATURES
Fixed Temperature Detection
The FD-6111 activates when the surrounding temperature reaches approximately 65°C, providing dependable fire detection based on temperature rise rather than smoke generation.
Reliable Marine Construction
The detector is designed for marine applications where reliability under vibration, humidity, and harsh environmental conditions is essential.
Reduced False Alarms
Unlike smoke detectors, the FD-6111 minimizes false alarms in environments affected by dust, steam, oil mist, or exhaust fumes.
Fast Thermal Response
The detector provides rapid response to abnormal heat conditions, enabling early warning and quick crew intervention.
Compatibility with Marine Fire Alarm Systems
The detector is widely used with OKI and Nippon Hakuyo marine fire detection systems installed onboard commercial vessels.
Long Service Life
The simple and robust construction contributes to low maintenance requirements and long-term operational reliability.
Compact Installation Design
Its compact form allows easy installation in machinery spaces, accommodation areas, technical compartments, and control rooms.
TECHNICAL SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Product Name | Fire Detector |
| Model | FD-6111 |
| Manufacturer | OKI Electric Disaster Prevention Co., Ltd. |
| Detector Type | Fixed Temperature Spot Type Heat Detector |
| Operating Temperature | Approximately 65°C |
| Contact Rating | 30V, 0.1A |
| Application | Marine Fire Detection System |
| Installation Type | Ceiling Mounted |
| Monitoring Principle | Thermal Detection |
| Industry | Marine Fire Safety |
| Vessel Application | Commercial and Offshore Vessels |
Technical specifications may vary depending on detector version and vessel installation requirements.
APPLICATIONS
The OKI FD-6111 Fire Detector is installed onboard:
Container Ships
Protection of engine rooms, machinery spaces, electrical rooms, and auxiliary equipment spaces.
Bulk Carriers
Fire detection in cargo machinery systems and engine compartments.
Oil Tankers
Monitoring of machinery spaces and critical operational areas.
Chemical Tankers
Reliable thermal fire detection in hazardous operating environments.
LNG Carriers
Integration with vessel-wide fire detection and alarm systems.
LPG Carriers
Monitoring of technical compartments and machinery spaces.
Offshore Vessels
Fire safety protection for drilling support and offshore production facilities.
Passenger Ships
Fire detection coverage in machinery and technical areas.
Research Vessels
Protection of sensitive equipment rooms and engineering spaces.
Fishing Vessels
Monitoring of engine rooms and processing equipment areas.
The detector may operate together with:
- Fire Alarm Control Panels
- Smoke Detectors
- Flame Detectors
- Fire Detection Loops
- Alarm Monitoring Systems
- Vessel Automation Systems
- Emergency Shutdown Systems
- Fire Suppression Systems
SPARE PARTS SUPPORT
SM MARINE SERVICE™ supports sourcing and supply of:
- OKI FD-6111 Detectors
- Detector Bases
- Detector Mounting Accessories
- Fire Alarm Control Panels
- Detector Interface Modules
- Fire Detection Loop Components
- Detector Connectors
- Alarm System Spare Parts
- Replacement Detector Units
- Complete Fire Detection Systems
Both new and reconditioned equipment may be available depending on customer requirements and stock availability.
REPAIR AND TECHNICAL SERVICES
SM MARINE SERVICE™ provides professional support services for marine fire detection systems.
Troubleshooting
Diagnosis of:
- Detector Fault Alarms
- Fire Loop Faults
- False Alarm Conditions
- Detector Communication Problems
- Fire Panel Alarm Issues
- Wiring Faults
- Sensor Failures
- Detector Activation Problems
Repair
Professional repair of marine fire alarm systems, detector circuits, alarm interfaces, and control panel electronics.
Calibration and Testing
Functional verification and performance testing of detectors and associated fire detection systems.
Overhaul
Inspection, refurbishment, replacement of defective components, and complete operational testing.
Technical Documentation Support
Support may be available for:
- User Manual
- Service Manual
- Installation Manual
- Wiring Diagram
- Maintenance Instructions
- Fire Alarm System Documentation
- Spare Parts Documentation
Workshop and Onboard Service
Our engineers provide workshop repairs, onboard troubleshooting, detector replacement, fire system testing, commissioning support, and technical assistance worldwide.
WHY CHOOSE SM MARINE SERVICE™
SM MARINE SERVICE™
Bangladesh Office
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh
China Warehouse and Support Center
Shanghai, China
SM MARINE SERVICE™ supplies both New Equipment and Reconditioned Equipment depending on customer requirements and budget.
We provide worldwide supply, sourcing, repair, calibration, technical support and spare parts services for marine automation, navigation, communication and marine electronic systems.
Website : https://www.smmarineservice.com
Email : info@smmarineservice.com
WhatsApp and Viber : +8801818929292
Marketing Contact: Nazmul Hasan Bhuiyan
Mobile WhatsApp and Viber : +8801730296909
CONCLUSION
The OKI FD-6111 Fire Detector remains a trusted solution for marine fire protection systems, providing dependable fixed-temperature heat detection for engine rooms, machinery spaces, and critical vessel compartments. Its robust marine design, reliable operation, and compatibility with established OKI and Nippon Hakuyo fire alarm systems make it a valuable component of shipboard safety infrastructure.
For OKI FD-6111 Fire Detector supply, repair, calibration, troubleshooting, spare parts, technical documentation support, reconditioned equipment, onboard attendance, and worldwide marine services, contact SM MARINE SERVICE™ for professional marine fire detection and safety system support.