Edwards Detectors Siga Oshd

About Edwards Detectors Siga Oshd

The Signature Optica Series SIGA-OSHD smoke detector
brings advanced optical sensing technology to a practical
design that increases efficiency, saves installation time,
cuts costs, and extends life safety and property protection
capabilities. Continuous self-diagnostics ensure reliability
over the long-haul, while environmental compensation helps
reduce maintenance costs.
The SIGA-OSHD 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.
Like all Signature Optica Series detectors, the SIGA-OSHD is an
intelligent device that gathers analog information from multiple
optical sensors, converting this data into digital signals. Utilizing
dual optical wavelengths combined with multiple detection angles,
the SIGA-OSHD differentiates particles that are not representative
of actual smoke. Particle data is input into digital filters which
feed a series of ratios removing signal patterns that are typical of
nuisance sources, thus reducing unwanted alarms. To make an
alarm decision, the detectors on-board microprocessor measures
and analyzes all optical sensor readings and compares this
information to preprogrammed settings.