112
Reference Manual
00809-0200-4840, Rev BA
December 2014
Appendix A: Reference Data
A.1.3
Configuration
Output process variable (PV)
Level (Linear or Scaled), Content (Volume), or Open Channel Flow
Configuration tools
(1)
Field Communicator
Rosemount 3490 Series Universal Control Unit
Rosemount AMS™ Suite
A.1.4
Electrical
Cable
Factory fitted 2-core shielded cable for external power supply and communication
Cable sheath
PVC
Cable length
10, 65, or 164 ft. (3, 20, or 50 m)
All cables may be shortened or extended on site
External power supply
12 to 40 Vdc (non-hazardous area)
12 to 30 Vdc (hazardous area)
Earthing
Connect the cable screen to earth
Communication (signal output)
Analog 4–20 mA, HART
Signal on alarm
Standard: Low = 3.75 mA. High = 21.75 mA
Namur NE43: Low = 3.6 mA. High = 22.5 mA
Saturation levels
Standard: Low = 3.9 mA. High=20.8 mA
Namur NE43: Low = 3.8 mA. High = 20.5 mA
Electrical parameters
Ui = 30 V, li = 120 mA, Pi = 0,82 W, Ci = 5 nF, Li = 27 mH
(1) The Rosemount 3490 Series Control Unit software must be version 3.40 (or later).
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