Allen-Bradley 839E, User Manual, Page: 27 / 32

839E Solid-State Flow Sensors User Manual
Pub #10000004735 Ver 03, May 2012 25
Operating conditions
• Any orientation
• Top housing section can be rotated 310°
Operating conditions: Environment
• Ambient temperature range
–40…+85 °C (–40…185 °F)
• Storage temperature
–40…+85 °C (–40…185 °F)
• Climate class
4K4H as per DIN EN 60721-3-4
• Degree of protection
IP65 complete housing
• Shock resistance
50 g as per DIN IEC 68-2-27 (11 ms)
• Vibration resistance
20 g as per DIN IEC 68-2-6 (10-2000Hz)
4 g as per guidelines of German Lloyd GL
• Electromagnetic compatibility
Interference emission as per IEC 61326, class B equipment
Interference immunity as per IEC 61326, Appendix A (industry) and
NAMUR Recommendation NE21; EMC influence: d 0.5%
Operating conditions: Process
• Process flow limits
Liquids: 0.03…3.0 m/s (0.1…9.84 ft/s)
• Process temperature limits
–20…85 °C (–4…185 °F)
Note!
The sensor can be exposed up to 130°C (266°F) without damage. Monitoring switches shut
off automatically at T
≥
85°C (185F) and starts again at T
≤
85°C (185°F).
• Process pressure limits
p/T load diagram as per DIN 43763 or Dittrich/Kohler (or as per ASME/ANSI PTC 19.3)