Edwards 6250B-200 Addressable Smoke Detector Ionization

In the first place, Edwards 6250B-200 Detector operated on the ionization principle. Edwards Est 6250B-200 senses the change in conductivity of ionized air caused by the presence of visible or invisible products of combustion and responds quickly to both fast-burning fires and slow smoldering fires. When activated the detector’s lamp illuminates. When the detector is clear of combustion products, pressing the “RESET” button on the control panel will reset the detector and system control panel.

In fact, in 2-wire applications, only one smoke detector on an initiating circuit can be activated. When contracts on relay bases are used to control more than one function (e.g., elevator capture, fan shutdown) only one (1) smoke detector per initiating circuit is permitted and all other initiating devices such as heat detectors, manual stations, water flow switches, etc., must be connected to separate circuit.

Features / Specifications

• Air velocity: 300 fpm(91,4m per min.) (max.)
• Temperature range: 32 – 100° F (0 – 38° C)
• Humidity Range: 0 – 93% Relative Humidity
• Color: White
• Remote Lamp: 2 mA at 24V DC
• Installation wiring: Non-polarized
• Maximum Altitude: 5,400 ft. (1646 m) above sea level
• Sensitivity range: UL 268 1.2% (±0.6%) obs/ft Nominal, Field Adjustable 0.8% – 1.3% obs/ft. Nominal