Description
🔥 Product Overview
The SAACKE FLS09 UV-5 is an electronic photocell / UV flame sensor identified by part number 7-7955-10642723. It is designed for flame detection in industrial combustion equipment, with applications including marine boilers, burners, and thermal process systems.
The sensor detects ultraviolet radiation generated by combustion and provides flame-presence information to the burner control or combustion-management system. This makes it an important component in flame supervision, burner safety, and automatic flame-failure response.
🔧 Key Features
- SAACKE FLS09 UV-5 electronic photocell sensor
- Part number 7-7955-10642723
- UV-based flame detection
- Designed for industrial combustion monitoring
- Suitable for marine boiler and burner applications
- Supports continuous flame supervision
- Intended for integration with burner management/control equipment
- Legacy marine and industrial automation spare
- Exact electrical characteristics should be matched to the installed burner-control system
📊 Technical Datasheet
| Parameter | Specification |
|---|---|
| Brand | SAACKE |
| Model | FLS09 UV-5 |
| Part Number | 7-7955-10642723 |
| Series | FLS 09 |
| Product Name | Electronic Photocell Flame Sensor |
| Product Type | UV Flame Scanner / Flame Detector |
| Detection Principle | Ultraviolet Flame Detection |
| Spectral Response | Approx. 190–270 nm |
| Primary Application | Burner, Boiler and Combustion Flame Monitoring |
| Product Status | Industrial / Marine Automation Spare |
🔥 Flame Detection Function
The FLS09 UV-5 is positioned at the flame-monitoring stage of a combustion control system. During normal burner operation, the sensor detects the UV radiation associated with the flame and supplies the corresponding flame-status information to the control system.
A typical arrangement is:
Burner Flame → FLS09 UV-5 → Flame Signal → Burner Control / Safety System → Fuel Control
If the expected flame signal is lost, the associated burner-control system can initiate the appropriate safety response according to its configured logic.
🚢 Marine & Industrial Applications
The FLS09 UV-5 is suitable for applications where continuous flame supervision is required, including:
- Marine steam boilers
- Shipboard boiler burners
- Oil-fired combustion systems
- Gas-fired burner systems
- Dual-fuel combustion equipment
- Industrial heating systems
- Thermal process equipment
- Burner management systems
The exact burner type and fuel configuration should be verified against the original SAACKE equipment documentation.
🔌 System Integration
For replacement applications, the sensor should be matched to the complete burner-management configuration rather than treated as a generic UV detector.
Check:
- Exact FLS09 model and UV-5 designation.
- Part number 7-7955-10642723.
- Sensor mounting arrangement.
- Electrical connector and wiring.
- Burner-control input requirements.
- Flame sighting position and optical alignment.
- Existing flame amplifier or burner controller.
- Original combustion-system documentation.
Correct optical positioning is especially important because the sensor must receive an appropriate UV signal from the flame while avoiding unwanted radiation sources.
🛠️ Installation & Commissioning
1. Isolate the burner system
Shut down the combustion equipment and follow the applicable burner safety procedure before removing the sensor.
2. Inspect the mounting position
Check the sighting tube, mounting hardware, and sensor interface for contamination or mechanical damage.
3. Install the sensor
Install the FLS09 UV-5 in the original position and maintain the specified optical alignment.
4. Verify wiring
Check connector orientation, wiring continuity, and the associated flame-monitoring circuit.
5. Test flame detection
With the burner operating under controlled commissioning conditions, verify that the control system correctly recognizes flame presence.
6. Verify flame-failure response
Confirm that the burner-management system responds correctly when the flame signal is intentionally removed under an approved test procedure.
🔍 Troubleshooting
No flame signal:
Check sensor alignment, optical path, connector condition, wiring, and the associated flame-control input.
Intermittent flame signal:
Inspect the sensor viewing path for soot, deposits, vibration, loose mounting, or unstable burner flame conditions.
False flame indication:
Check for unwanted UV sources and verify the sensor’s optical alignment and surrounding burner hardware.
Burner trips during normal operation:
Check the flame signal circuit together with burner stability, sensor condition, wiring, and the flame-monitoring controller.
Replacement sensor does not operate:
Verify the exact FLS09 UV-5 model and part number rather than assuming another SAACKE flame sensor is electrically interchangeable.
🧹 Maintenance Recommendations
- Keep the sensor’s optical path clean.
- Inspect the mounting assembly during burner maintenance.
- Check electrical connections for looseness or corrosion.
- Monitor for vibration-related movement.
- Verify flame-signal stability during scheduled burner inspections.
- Keep a tested spare available for critical boiler systems.
- Store replacement sensors in clean, dry, protective packaging.
⚠️ Safety Considerations
Flame sensors are part of a combustion safety system. Incorrect installation, alignment, wiring, or testing can affect burner safety.
Replacement and commissioning should therefore be performed by qualified personnel following the applicable burner-management and vessel safety procedures. Do not bypass flame supervision or defeat safety interlocks simply to keep a burner operating.
♻️ Replacement Considerations
The SAACKE FLS09 UV-5 should be matched by its complete identification, particularly 7-7955-10642723, before replacement.
Because marine boiler and burner systems can remain in service for many years, maintaining the exact original sensor can be preferable to modifying the flame-monitoring architecture. Verify the controller, mounting arrangement, wiring, and UV detection requirements before substitution.
❓ Frequently Asked Questions
Q: What is the SAACKE FLS09 UV-5?
A: It is an electronic UV photocell/flame sensor used to monitor flame presence in combustion equipment.
Q: What does it detect?
A: It detects ultraviolet radiation associated with combustion flames.
Q: Where is it commonly used?
A: Typical applications include marine boilers, burner systems, and industrial combustion equipment.
Q: Is it a burner controller?
A: No. The FLS09 UV-5 is a sensing device. It supplies flame-detection information to the associated burner-control or safety system.
Q: What is the part number?
A: The listed part number is 7-7955-10642723.
Q: Can another UV flame sensor be used as a substitute?
A: Only after confirming the electrical, mechanical, optical, and burner-control compatibility. A similar-looking sensor should not automatically be treated as a direct replacement.
📦 Recommended Related SAACKE Models
- SAACKE FLS09 UV-5 Flame Sensor
- SAACKE FLS09 UV Flame Detector
- SAACKE FLS Flame Monitoring Sensor
- SAACKE Burner Flame Scanner
- SAACKE UV Photocell Detector
- SAACKE Boiler Burner Control Module
- SAACKE Burner Management Unit
- SAACKE Flame Monitoring Relay
- SAACKE Boiler Control System Module
- SAACKE Marine Burner Automation Components
✅ Product Summary
The SAACKE FLS09 UV-5 7-7955-10642723 is an electronic UV flame sensor intended for continuous flame supervision in SAACKE combustion and marine boiler applications. Its role is to provide reliable flame-presence information to the associated burner-control and safety system.
For replacement projects, verify the FLS09 UV-5 designation, 7-7955-10642723 part number, mounting arrangement, wiring, optical alignment, and controller compatibility before installation.
