Hochiki FIRElink-NANO - Manual (Page 7)

FIRElink-NANO Air Sampling Detector – Installation and User Manual Page 7 of 21
© 2010 Hochiki Europe (UK) Ltd 9-5-0-425/ISS1/JUL10
3 Inside the Detector
Aspirating Fan Connector Lead: If this lead is broken or not connected, the fan will not turn
and the detector will indicate a FLOW fault.
Main PCB: No user-serviceable parts. The PCB is fixed in place with 5 off M3 x 6 screws. The
detector must not be operated with any of the screws missing, as this may cause air leaks and
unreliable operation.
DIL switch: Used to configure user-selectable detector functions.
Detector Head Ribbon Connector: If this lead is broken or not connected, the detector will
indicate a “Head” Fault.
Detector Head Cover Plate: This protects the laser head. The plate should not be removed
from the detector.
Detector Head Assembly: No user-serviceable parts. Do not remove this from the detector
due to the risk of exposure to the laser.
Replaceable Dust Filter: This simply slides in and out of its mounting. The filter and its
replacement have IN written in red on one side, and OUT on the other to indicate correct
orientation. The part number for ordering spare dust filters is 30755.
NOTE: As viewed above, IN should be on the left and OUT should be on the right, as indicated by the
moulded-in arrows next to the filter slot.