Ordering Information Model SRD991 Intelligent Positioner Version -C Double Acting Input/Communication H HART Communication (4 - 20 mA) Additional Inputs/Outputs F Position Feedback 4 - 20 mA and one Binary Output for Alarm Built-In Limit Switch S Without Built-In Limit Switch Cable Entry 7 M20 x 1.5 With One Plastic Cable Gland Electrical Classification FAA FM Approved for Intrinsic Safety Class I, Division 1, Groups A, B, C, D, Hazardous Locations Indoors And Outdoors, NEMA 4X Attachment Kit N Order as Auxiliary Manifold Y Pneumatic connection 1/4 - 18 NPT made of an additional manifold Options-C-S-V14 Positioner free of copper and its alloys¹Pneumatic Amplifier in the "Spool Valve" Version²LCD with Menu-Language in English / German / Dutch Available WITH (Version: B) OR WITH (Version: C) AND (Optional Features: S) Only with Version -C