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  FENWALL FN-PSD7157D Spare Advanced Photoelectric Detector Duct Head - FENWALL FN-PSD7157D
FENWALL FN-PSD7157D Spare Advanced Photoelectric Detector Duct Head - FENWALL FN-PSD7157D


 

Our Price : $49.00


Product Code: FENWALL FN-PSD7157D

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Description Specifications
 
FENWALL FN-PSD7157D Spare Advanced Photoelectric Detector Duct Head - FENWALL FN-PSD7157D


The Fenwal Models PSD-7157 and PSD-7157D Photoelectric Smoke Detectors respond to a broad spectrum of both flaming and smoldering fire conditions. The Detectors have advanced solid-state, low-voltage, surface-mount circuitry and are designed for 2-Wire and 4-Wire installation using the appropriate Detector base. The characteristic 360-degree detector design permits smoke entry from any direction. A unique sensing chamber design permits the operation of the Models PSD-7157 and PSD- 7157D in open areas with air velocities from 0 to 300 fpm and 0 to 4000 fpm respectively. The Model PSD-7157D is also suitable for duct housing applications in air velocities from 500 to 4000 fpm. The Detectors are designed for open area/duct housing applications per UL268/UL268A and may be installed in systems intended for Releasing Device Service through use of compatible Fire Alarm Control Panels. Two Red Light Emitting Diodes are located diametrically opposite each other so as to allow 360-degree viewing. Both LEDs continuously indicate the operating condition of the Detector. During standby, the LEDs flash once every six seconds. During alarm, both LEDs light steady at full brilliance. A double flash every six seconds indicates a detector with a sensitivity threshold threshold
outside acceptable limits. A unique gated output circuit design provides improved stability and transient suppression. Special signal processing techniques verify the presence of smoke before the detector will alarm. A fine mesh insect screen protects the chamber area and is used to avoid potential nuisance alarms. The detector head is installed into the base with a simple twistlock action. A locking feature is provided for vandal resistant security

Features
  • Approvals/Listing
  • -US and Canadian UL Listed (cULus)
  • -FM Approved
  • -CSFM Approved
  • -NYC MEA Accepted (pending)
  • Dual Ionization Chamber Technology
  • Nominal Sensitivity
  • -PSD-7157: 3.25% per foot Obscuration
  • -PSD-7157D: 2.40% per foot Obscuration
  • Sensitivity Measurement/Testing
  • -Wireless Measurement in %/ft Obscuration
  • -Remote and Local Functional Test Capability
  • Wide Range of Input Voltage 10.2 to 36.8 VDC
  • Low Current design
  • Dual Response LEDs allow 360-degree viewing
  • Trouble Indication
  • Low Profile Appearance using Surface Mount Technology
  • Electrically and Mechanically Compatible with all Fenwal
  • Smoke and Electronic Heat Detectors and Bases
  • Interchangeable 2-Wire and 4-Wire Bases
  • Universal Relay Modules
  • Non Polarized
  • Locking Feature for Vandal Resistance
  • Fine Mesh Insect Screen
  • EMI and RFI Resistant

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