DEMCO Photoelectric Smoke Detector D-233 with its new sensor design incorporates an internal pulsing LED and a photo-diode at an obtuse angle, is ideal for applications where slow-burning or smouldering fires are likely.
The D-233 has an advanced solid- state, low-voltage, surface-mount circuitry and are designed for 2-Wire installation using the D32003 universal base. The detector head is installed into the base with a simple twist-lock action.
The 360-degree detector design permits smoke entry from any direction, and a unique sensing chamber that permits operation in open areas with air velocities from 0 to 300 fpm.
A fine wire mesh extending between offset ports in the exterior and interior walls screens insects from the chamber and obstructs light from passing directly to the interior part.
Certification/Listing-UL and CE.
• Advanced detection and discrimination algorithms.
• Advanced solid-state, low-voltage, surface-mount circuitry.
• Suitable for the majority of application conditions.
• Easy installation, testing and maintenance.
• Sleek low-profile housing design.
• Flashing LED in standby mode.
• Robust and reliable sensor head.
• Two red LEDs to allow 360-degree viewing.
• A fine mesh insect screen protects the chamber area i.e. to avoid potential nuisance alarms.
• Optional/integrated heat detector for D233-2H and D233-2HL models.
