Conax Technologies 2-Wire Programmable Head Mount RTD Transmitter (ATEX, CSA/FM) 5333D

The 5333D is a two-wire programmable transmitter for linearized temperature measurement using Pt100 to Pt1000 or Ni100 to Ni1000 RTD sensors, converting resistance variations to a 4 to 20 mA analog current signal. It features 3-wire RTD input with cable compensation, programmable sensor error detection per NAMUR NE43 (3.5 mA downscale, 23 mA upscale), and a 135 ms update time. The device operates from 8.0 to 30 VDC supply, with a maximum output load of (Vsupply−8)/0.023 Ω and internal power consumption between 25 mW and 0.8 W. It complies with ATEX 94/9/EC and CSA/FM standards for hazardous locations, including Zone 0 and Class I Division 1, Group A, B, C, D. Mounting is DIN Form B compatible, with dimensions of 44 mm diameter by 20.2 mm height and a weight of 50 g. The enclosure is rated IP68, and the terminal compartment IP00.