CHAPTER
4
Appendix 1: Hazardous Location Installation for FS & SS
Series Flame Detectors and Associated Test Lamps
Overview
The Honeywell® Flame Detectors and Test Lamps are hazardous area products. They are factory
calibrated, and the robust sealed design with no moving parts allows for mounting in any
orientation even in harsh environments. These products are available in either a 316 Stainless Steel
or Low Copper Aluminum.
Safety
WARNING
RISK OF IMPROPER FLAME DETECTION
l Install only in areas in accordance with the environmental and hazardous area ratings.
l Carefully review mounting area and position in accordance with the FS24X Plus™ FM
Performance Appendix and this Manual to ensure optimal flame detection regarding the
angle of device and unobstructed view.
l Avoid potential sources of direct or indirect radiation in the flame detector field of view.
l Do not touch the sensors on the front of the electronics module.
l Avoid direct sunlight into the flame detector window – use provided sunshade, aim flame
detectors down at 40 degrees or more when possible, and use multiple detectors to cover
hazardous areas from different directions.
l Avoid close proximity to rapid modulation/chopping of sunlight (creating moving dark
shadows) as optical sensor performance can be reduced, e.g. close trees in the wind, rotating
blades.
l Use shielded cable for all wirings and ground the shield at one end as detailed in the Wiring
section.
l Keep all devices and wire runs away from mercury vapor lights, variable speed drives, radio
repeaters and other sources of electromagnetic interference.
l Follow local cabling and glanding rules.
l Seal all unused conduit entries and install proper drains/taps as required by local codes.
l Do not try to service parts inside the electronics module, there are no field serviceable parts.
Honeywell® FS24XPlus™ | User Manual
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