FYREYE MK11 Addressable Fixed Heat Detector

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The Fyreye Rate of Rise heat detectors (MKIIAHR) use a thermistor arrangement to sense a quick rise in temperature and also a final threshold temperature of 57°C. The Fyreye fixed heat detector (MKII-AHF) has a single thermistor arrangement that gives an alarm at a temperature of 90°C.

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The Fyreye Rate of Rise heat detectors (MKIIAHR) use a thermistor arrangement to sense a quick rise in temperature and also a final threshold temperature of 57°C. The Fyreye fixed heat detector (MKII-AHF) has a single thermistor arrangement that gives an alarm at a temperature of 90°C. The detectors will work with most modern fire alarm control panels and comes supplied with a locking grub screw to prevent unauthorised head removal. The Fyreye Extra range of detectors has an extra LED to improve detector identification in an alarm condition.

Key Features

  • Designed to meet EN54 requirement
  • Lockable to base to stop unauthorised removal
  • Remote LED output
  • 8 LEDs for improved, 360° visibility
  • Compatible with all Fyreye MkII bases
  • Addressed with dip switches or hand-held programmer

Technical Specification

  • Model: MKII-AHF
  • Detector Class: Fixed Heat Only A2S
  • Design Standard: EN54 part 5
  • Approval: LPCB
  • Operating Voltage: 17 to 28V DC
  • Quiescent Current: 500μA
  • Alarm Current @ 24V DC: 5mA
  • Operating Temperature: -10°C to +50°C
  • Minimum Continuous Temperature: 0°C
  • Maximum Humidity: 95% RH non-condensing
  • Alarm Condition: Fixed heat trigger @57°C
  • Coverage: 50m²
  • IP Rating: IP43
  • Start-up Time: 10 Seconds
  • Size (with Base): 100 x 48 mm
  • Weight (with Base): 75g (133g)
  • Remote Output: 20mA at 24VDC

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FYREYE MK11 Addressable Fixed Heat Detector

FYREYE MK11 Addressable Fixed Heat Detector

The Fyreye Rate of Rise heat detectors (MKIIAHR) use a thermistor arrangement to sense a quick rise in temperature and also a final threshold temperature of 57°C. The Fyreye fixed heat detector (MKII-AHF) has a single thermistor arrangement that gives an alarm at a temperature of 90°C.

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