Contents 
1  Introduction ............................................................................................................................................................................ 3 
1.1  Intended Readers ............................................................................................................................................................. 3 
2  Safety Hazards, Warnings and Cautions ............................................................................................................................. 5 
2.1  General Warnings and Cautions ....................................................................................................................................... 5 
2.2  Important Information ........................................................................................................................................................ 5 
2.3  FSL100 Safety Features ................................................................................................................................................... 6 
3  Overview ................................................................................................................................................................................. 7 
4  Mechanical Installation .......................................................................................................................................................... 9 
4.1  Siting ................................................................................................................................................................................. 9 
4.2  Mounting and Orientation .................................................................................................................................................. 9 
4.3  Installing the FSL100 Flame Detectors ............................................................................................................................. 9 
4.4  Cone of Vision ................................................................................................................................................................ 10 
4.5  Shadow Effect ................................................................................................................................................................. 10 
4.6  Mounting Below a Ceiling ............................................................................................................................................... 11 
4.7  Vote Count ...................................................................................................................................................................... 12 
4.8  Weather Protection ......................................................................................................................................................... 13 
4.9  Hot Work ......................................................................................................................................................................... 13 
5  Electrical Installation ............................................................................................................................................................ 15 
5.1  Power Supply .................................................................................................................................................................. 15 
5.2  Cabling Recommendations ............................................................................................................................................. 15 
5.3  Earth (Ground) Regimes ................................................................................................................................................. 15 
5.4  Wiring Diagram ............................................................................................................................................................... 16 
5.5  Electrical Connection (General) ...................................................................................................................................... 17 
5.6  Wiring to a Controller (General) ...................................................................................................................................... 17 
5.7  Wiring to a Fire Control Panel ......................................................................................................................................... 18 
5.8  Wiring to a PLC ............................................................................................................................................................... 19 
5.9  Wiring to a 4-20 mA Non-Isolated (Sourcing) Current Output ......................................................................................... 19 
5.10  Connecting the Manual Self-Test .................................................................................................................................... 19 
5.11  FSL100 Latching Alarm Settings .................................................................................................................................... 20 
6  Commissioning and Testing ................................................................................................................................................ 21 
6.1  Commissioning ............................................................................................................................................................... 21 
6.2  Functional Testing .......................................................................................................................................................... 22 
6.3  Fault Analysis ................................................................................................................................................................. 22 
6.4  Fault Testing ................................................................................................................................................................... 23 
7  FSL100 Operation ................................................................................................................................................................. 25 
7.1  The Display LEDs ........................................................................................................................................................... 25 
7.2  Normal Operation ........................................................................................................................................................... 25 
7.3  Fault Conditions .............................................................................................................................................................. 25 
7.4  Relay Outputs ................................................................................................................................................................. 25 
7.5  Analogue Output 0–20 mA (Stepped, Sinking, Non-Isolated) ......................................................................................... 25 
7.6  Self-Testing..................................................................................................................................................................... 25 
7.7  Manual Self-Test ............................................................................................................................................................. 26 
8  Maintenance .......................................................................................................................................................................... 27 
9  FSL100-SM21 Swivel Mount ................................................................................................................................................. 29