Installation Guide and Operating Manual 
 
 
Honeywell       21 
4.2 Product Variations 
There are product variations above and beyond those that are field selectable by the end user(s).  These 
variations are provided for the customer that has specialized needs.   
Here is a list of current ordering options for the Model FS24X and FS24X-9: 
 
Model   -  #  #  #  -  #  #  # 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXAMPLES: 
FS24X-911-211 
QuadBand Triple IR Detector, 90° Field of View, General Applications with Relays, 4-20mA Output, 
FireBusII, Aluminum Enclosure with ¾ inch NPT Conduit Entries,  Approvals: FM, cFM, ATEX, 
IECEx: Class I, Division 1, Groups A, B, C & D; Class II, Division 1 Groups E, F & G; Class III; 
Class I, Zone 1 AEx d/Ex d IIC Hazardous Locations: ATEX/IECEx 
Class I, Zone 1, Ex db IIC (T4-T6) and Ex tb IIIC (T4-T6). 
FS24X-211-221 
QuadBand Triple IR Detector, 110° Filed of View, General Applications with Relays, 4-20mA 
Output, FireBusII, 316 Stainless Steel Enclosure with ¾ inch NPT Conduit Entries, FM, cFM, 
ATEX,IECEx: Class I, Division 1, Groups A, B, C & D; Class II, Division 1 Groups E, F & G; Class 
III; Class I, Zone 1 AEx d/Ex d IIC Hazardous Locations: ATEX/IECEx Class I, Zone 1, Ex db IIC 
(T4-T6) and Ex tb IIIC (T4-T6). 
Model Numbers 
FS24X 
Outputs 
1 = Relays / 4-20mA / FireBus II / Modbus 
2 = Relays / HART Communication 
Application 
1 = General Applications 
 
Manufacturer’s Code 
2 = Standard Honeywell Analytics Detector - 110° Field of View (-1 has been replaced by -2) 
 9 = Standard Honeywell Analytics Detector - 90° Field of View 
Enclosure Types 
10 = No Enclosure (Module Only) 
21 = Aluminum, ¾” NPT Conduit Entries 
22 = 316 Stainless Steel ¾” NPT Conduit Entries 
23 = Aluminum, 25 mm Conduit Entries 
24 = 316 Stainless Steel 25 mm Conduit Entries 
Approvals1 = not available 
   2 = FM, cFM (Class I, Divisions 1 & 2) 
  3 = FM, cFM, ATEX, IECEx (Class I, Zone 1) 
   4 = INMETRO 
   5 = not available 
   6 = BRE (EN54-10) 
   7 = CCCF 
   8 = GOST (CUTR) 
 
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