FS-Series - FerroSwitch FS-A Series - SPDT The FS-A Series (Metric M18 Thread) proximity switch was the first Ferro Sensor developed by Euroswitch. It benefits from a variety of certifications and unique features such as LFO/LFC NAMUR output and a low operating temperature of -60°C/-76°F. Features + Sensing range <2.5mm (0.100"). Can be extended with target magnet. + Repeatability approx. 0.05mm (0.002"). + Volt free SPDT/SPCO (Form C) 4A contacts as standard. + -60°C to +204°C / -76°F to +400°F temperature options. + Metric thread. + Global Certification (Multi certified options available). Mounting Thread: M18x1.0 Thread Length: 60.00mm / 2.36" Long FS-A Metric only M18x1.0 Thread No conduit entry Refer to diagram(s) above for dimensions of product variants. Sensing Ranges Magnet Range Given sensing ranges relate to primary sensing face. Secondary and Tertiary sensing faces will see a reduced sensing range. Notes & Abbreviations # Please consult factory before quoting these items where applicable. IS - Intrinsically Safe. GI - General Industrial. Standard Approvals 1 General Industrial Intrinsically Safe Zone 0 & 20 f 3 IECEx/ATEX/UKEx Ex db/tb NC/INC Explosion Proof Zones 1, 2, 21 & 22 Regional Approvals Explosion Proof (Ex db/tb) Regional Approvals Intrinsically Safe (Ex ia) L ECASEx # (UAE) * Russia, Kazakhstan, Belarus. f also suitable for zones 1,2,21 & 22. Body Material 2 316L Stainless Steel Standard Temperature 1 PVC Cable Additional cost per meter over 2m. -20°C to +70°C (+80°C IS & GI) Low Temperature 2 Polyolefin Cable Polyolefin Cable - IS certification Additional cost per meter over 2m. -60°C to +120°C (+125°C IS & GI) High Temperature 4L PTFE/Teflon™ Leads Additional cost per meter over 2m. -40°C to +204°C Certification limitations apply 5L PEEK Leads Additional cost per meter over 2m. Only available on Ex db & GI. -40°C to +204°C Certification limitations apply All hard wired switches are supplied with 2 meters (78") as standard. Contact Arrangement - SPDT/SPCO (Form C) Standard LFC Line Fault Monitoring NAMUR (Normally Closed) Ex ia & Standard Temperature* LFO Line Fault Monitoring NAMUR (Normally Open) Ex ia & Standard Temperature* Contact Material - Palladium/Silver Standard Sensing Face Pressure Rating - 2,000 psi / 138 Bar Standard * Low Temperature & Ex db/tb version available please consult factory. Some options may be combined. Please consult factory. Non Standard Cable/Lead Lengths - Standard length is 2 metres xxM Non standard length, specify in metres e.g. -10M t Temperature range must be 1 Options may be combined. Please consult factory.