The Signature Series SIGA-PHD detector brings advanced multi
sensor technology to a practical design that increases efficiency,
saves installation time, cuts costs, and extends life safety and
property protection capabilities. Continuous self-diagnostics en
sures reliability over the long-haul, while environmental
compensation helps reduce maintenance costs.
The 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
Like all Signature Series detectors, the SIGA-PHD gathers analog
information from its sensing elements and converts this data into
digital signals. To make an alarm decision, the detector’s on-board
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.
Standard Features
Some features described here may not be supported by
all control systems. Check your control panel’s Installation and
Operation Guide for details.
Next Generation Detection Technology
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
Up To 250 Total Signature Adresses Per Loop
Two levels of environmental compensation
Two levels of dirty detector warning
Twenty pre-alarm settings
Five sensitivity settings
Non-volatile memory
Electronic addressing
Environmental compensation
Automatic day/night sensitivity adjustment
Bicolor (green/red) status LED
Standard, relay, fault isolator, and audible mounting base