Description

The Edwards SIGA-PHD detector brings advanced multisensor technology to a practical design that increases efficiency, saves installation time, cuts costs, as well as extends life safety and property protection capabilities. Continuous self-diagnostics ensure reliability over the long haul, while environmental compensation helps reduce maintenance costs. Also, the Edwards Est SIGA-PHD provides an optical smoke sensor and a rate-of-rise heat sensor with a fixed temperature setting. Together these sensors efficiently detect smoldering fires, as well as fast flaming fires.

Besides, like all Signature Series detectors, the Edwards Est SIGA-PHD gathers analog information from its sensing elements and converts this data into digital signals. To make an alarm decision, the detector’s onboard microprocessor measures and analyzes smoke and heat sensor readings and compares this information to historical data. Digital filters remove signal patterns that are not typical of fires, thus virtually eliminating unwanted alarms.

In general, the SIGA-PHD detects extremely small particles of combustion and triggers an alarm at the first sign of smoke. Thanks to its high-performance forward-scattering reflective response technology, the photoelectric smoke sensor responds quickly and reliably to a wide range of fire types, especially slow-burning fires fuelled by combustibles typically found in modern multi-use buildings.

Features / Specifications

• Integrates optical smoke with rate-of-rise heat sensing
• Wide 0.53 to 3.94 %/ft. (1.7 to 12.35 %/m) smoke obscuration
• Uses existing wiring
• Automatic device mapping
• Sensor Markings Provide Easy Testing Identification
• Two levels of environmental compensation
• Two levels of dirty detector warning
• Twenty pre-alarm settings
• Five sensitivity settings
• Electronic addressing
• Standard, relay, fault isolator, and audible mounting bases