SITRANS TR320 Temperature transmitter for rail mounting, with one configurable input and a galvanically isolated 2-wire output. 2-wire, 4 … 20 mA Input 1 RTD Pt100 IEC 60751 4-wire None None CJC Without enclosure (head mounted and rail mounted transmitter) . Intrinsic safety (Ex i) / Increased safety zone 2 (Ex ec) / Non-incendive (NI) / Non-incendive field wiring (NIFW) (ATEX, IECEx, EACEx, CSA, FM, NEPSI, Inmetro, UKEX) None (head mounted and rail mounted transmitter) Without local operation