EDWARDS Intelligent Optical Smoke Detector – SIGA-OSD
Advanced Photoelectric Smoke Detection for Signature Series Systems
The SIGA-OSD Intelligent Optical Smoke Detector is part of the Edwards Signature Optica™ Series, utilizing advanced multi-criteria optical sensing technology to provide fast, reliable fire detection while significantly reducing nuisance alarms. Designed for use with Edwards Signature Series intelligent fire alarm systems, the SIGA-OSD combines sophisticated smoke analysis algorithms with intelligent addressable communication for enhanced life safety protection.
Advanced Optical Sensing Technology
- Multi-criteria optical smoke sensing technology.
- Dual optical wavelengths with multiple detection angles.
- Enhanced detection of real fire conditions.
- Superior discrimination against nuisance particles.
Intelligent Nuisance Alarm Rejection
- Reduces unwanted alarms from cooking particulates and airborne contaminants.
- Advanced digital filtering algorithms.
- Improved reliability in challenging environments.
- Ideal for modern commercial buildings.
Intelligent Addressable Operation
- Compatible with Edwards Signature Series Fire Alarm Systems.
- Electronic addressing without DIP switches.
- Automatic device mapping.
- Fast and stable communication through Signature Data Circuit (SDC).
Environmental Compensation
- Two levels of environmental compensation.
- Two levels of dirty detector warning.
- Automatic day/night sensitivity adjustment.
- Reduced maintenance requirements.
Continuous Self-Diagnostics
- On-board microprocessor monitoring.
- Non-volatile memory storage.
- Continuous detector health monitoring.
- Enhanced system reliability and maintenance efficiency.
Standard Features
- Five selectable sensitivity settings
- Twenty programmable pre-alarm settings
- Automatic device mapping
- Electronic addressing
- Green/Red bi-color status LED
- Supports up to 250 Signature addresses per loop
- Compatible with multiple mounting bases
- UL 268 7th Edition Listed
Applications
The SIGA-OSD is ideal for:
- Commercial Office Buildings
- Hospitals & Healthcare Facilities
- Hotels & Resorts
- Educational Institutions
- Shopping Malls
- Airports
- Government Buildings
- Data Centers
- High-Rise Residential Buildings
- Financial Institutions
Technical Specifications
| Description | Specification |
|---|---|
| Model | SIGA-OSD |
| Detector Type | Intelligent Optical (Photoelectric) Smoke Detector |
| Detection Technology | Multi-Criteria Optical Sensing |
| Sensitivity Range | 0.5 to 4.36%/ft Obscuration |
| Communication | Signature Data Circuit (SDC) |
| Addressing | Electronic Addressing |
| Device Capacity | Up to 250 Addresses per Loop |
| Environmental Compensation | Automatic |
| Pre-Alarm Settings | 20 Levels |
| Sensitivity Settings | 5 Levels |
| Status Indication | Bi-Color Green/Red LED |
| Operating Voltage | 15.2 – 19.95 VDC |
| Operating Temperature | 0°C to 49°C |
| Relative Humidity | 20% to 93% Non-Condensing |
| Compliance | UL 268 7th Edition Listed |
Compatible Mounting Bases
The SIGA-OSD supports:
- SIGA-SB Standard Base
- SIGA-RB Relay Base
- SIGA-IB Isolator Base
- SIGA-AB4G Audible Base
- Remote LED Indicator Bases
These options provide flexibility for various installation requirements.
Benefits
✅ Early detection of smoldering fires
✅ Advanced nuisance alarm reduction
✅ Intelligent addressable technology
✅ Automatic sensitivity adjustment
✅ Continuous self-diagnostics
✅ Reduced maintenance costs
✅ Fast and reliable communication
✅ Seamless integration with Edwards Signature Series systems
Typical System Integration
The SIGA-OSD integrates seamlessly with:
- EST3X Life Safety Control Systems
- EST4 Fire Alarm Systems
- Signature Series Intelligent Panels
- Emergency Voice Evacuation Systems
- Building Management Systems (BMS)
- Central Monitoring Stations
- Smoke Management Systems
Why Choose SIGA-OSD?
The SIGA-OSD combines advanced photoelectric detection technology with intelligent signal processing to deliver dependable fire detection while minimizing nuisance alarms. Its environmental compensation, self-diagnostics, and automatic device mapping make it an excellent choice for modern life safety applications requiring high reliability and low maintenance.
City Fire & Safety Services (Pvt) Ltd
Supply • Installation • Testing • Commissioning • Maintenance
