Kidde KIR-OSHD Optica Series Intelligent Multisensor Smoke and Heat Detector

The Kidde Intelligent Optica Series KIR-OSHD smoke detector brings advanced optical (photoelectric) 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 KIR-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 Kidde Intelligent Optica Series detectors, the KIR-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 KIR-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 detector’s on-board microprocessor measures and analyzes all optical sensor readings and compares this information to preprogrammed settings.

Main Features

• Multi-criteria optical smoke sensing technology
• Integrates optical smoke with rate-of-rise heat sensing
• Wide 0.5 to 4.36 %/ft. (1.6 to 13.6 %/m) smoke obscuration
• Integrated nuisance rejection reducing unwanted alarms from general cooking particulates
• Uses existing wiring
• Listed to UL 268 7th edition
• Sensor Markings Provide Easy Testing Identification
• Up To 250 detector and module Addresses Per Loop
• Two levels of environmental compensation
• Two levels of dirty detector warning
• Twenty pre-alarm settings
• Five sensitivity settings
• Non-volatile memory
• Rotary addressing, 1-125
• Automatic day/night sensitivity adjustment
• Bicolor (green/red) status LED
• Standard, relay, fault isolator, and audible mounting bases