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Rosemount™ X-STREAM Enhanced XEFD Continuous Gas Analyzer
rosemount x-stream xefd
The X-STREAM Enhanced flameproof analyzer provides powerful analytical technology in a wall-mountable NEMA 4X/IP66 cast aluminum housing.
Worldwide approvals enable operation in Class I, Zone 1, Group IIB+H2 and Class I Division 2 BCD hazardous areas.
Rosemount™ X-STREAM Enhanced XEFD Continuous Gas Analyzer


Humidity Range
< 90 % r.h. @ 20 °C (68 °F)
< 70 % r.h. @ 40 °C (104 °F)
Enclosure Rating
Type 4X; IP 66 acc. EN 60529 for outdoor installation, protected against direct sunlight
Up to 63 kg (139 lbs) depending on configuration
Analog Output
1–5, individually optically isolated 4(0)–20 mA (RB ≤ 500 Ω)
Analog Input
2 analog inputs, 0–1(10) V (Rin = 100 kΩ) or 4(0)–20 mA (Rin = 50 Ω)
Relay Outputs
4 status relays acc. NAMUR NE 107 or e.g. concentration thresholds, valve status notification dry contacts: 1 A, 30 V
Communication Protocol
Ethernet with Modbus TCP; RS 485 / 232C with Modbus RTU; 2 USB ports


  • Up to five component gas analyzer featuring NDIR/UV/VIS photometer, paramagnetic and electrochemical O2, thermal conductivity and moisture sensors
  • Enhanced performance with IntrinzX technology
  • Modern communication capabilities including web-browser accessibility
  • Outstanding reliability with a three-year warranty
  • Storage of data calibration and event log files
  • Large dynamic ranges
  • Programmable Logic Controller (PLC) controls sample handling and sample lines
  • Very low temperature dependency