Product Description

Optical alarms are for use in escape or circulation routes and in areas where there is a danger of ignition of furniture and surroundings by cigarettes producing slow, smouldering fires.

This alarm features:

• Interlink with up to 23 Firex hard-wired alarms – all alarms sound if danger is detected
• Alarm memory – identifies source unit within interconnecting network
• Reduced energy consumption – lower lifetime running costs
• Combined Test/HushTM button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms
• Auto reset after activation
• Tamper-resistant locking device – prevents unauthorised removal without the use of a tool
• Mains operation – 9V Alkaline back-up battery supplied as standard

Product Details

• Power Supply: 230V mains-powered with 9V Alkaline battery back-up

• Temperature Range: 0ºC to + 40ºC

• Humidity Range: Up to 93% Relative Humidity (RH) non-condensing

• Alarm Dimensions: 127 x 127 x 39mm

• Bracket Dimensions: 133 x 133 x 6mm

• Alarm Weight: 242g

• Warranty: 6 years

• Approvals:
  • BSI certified to BS EN14604:2005
  • CE tested and certified

• Sensor: Optical, circular lateral chamber with insect-resistant width, 9-slot entry portals

• Chamber Size: 35mm outside diameter x 16mm depth approximate (external)
  

• Detection Band: Infrared light wavelength

• Button Test: Simulates the effect of smoke within the sensing chamber, checks electronics and sounder

• Automatic Self-test: Circuitry is tested and unit beeps (chirps) if fault is detected

• Power Consumption: < 15mA

• Connection: Push-in/snap-fit type connector with 150mm long flying leads (supplied)

• Power-on Indicator: Continuous green LED

• Alarm Sounder: Electronic piezo-electric sounder (T3 pattern sound - three pulses - space - three pulses)

• Sound Output: 85dB (A) minimum at 3 metres

• Dust Protection: In-built foam gasket in rear of alarm to prevent dust ingress into rear of the alarm

• Alarm Status:
  • Red LED flashes approx once every five minutes = normal operation
  • Red LED flashes once a second = sensing smoke (sounder alarm sounds)
  • Red LED flashes once every ten seconds = in hush condition (auto-reset after 15 minutes)

• Interconnection: Up to 24 Firex and Kidde ‘Slick’ units (smoke, heat and CO) can be hardwire interconnected with optional control

• Optional Controls: Wired Remote Test and Hush Unit (REMTH) allows test and hush of interlinked units

• Optional Pattresses: SMK23RU also has integral switchable relay for operating remote devices SMK4896 – Surface mounting base for added ease of installation

• Fixing: Mounting bracket ring supplied with two ‘T’ slot fitting option 57mm spacing to a maximum of 90mm for standard screw fittings on back boxes
  Bracket has 50mm diameter central access hole for cabling