Emerson Rosemount 3051S Manual Supplement page 30

Rosemount 3051S High Pressure
2017
Power supply
External power supply required.
Rosemount 3051SHP: 10.5 to 42.4 Vdc with no load

Rosemount 3051SHP with Advanced HART Diagnostics Suite:

12 to 42.4 Vdc with no load
Load limitations
Maximum loop resistance is determined by the voltage level of the external power supply, as described
by:
Figure 1-16. Rosemount 3051SHP
Maximum Loop Resistance = 43.5 x (Power Supply Voltage – 10.5)
1387
1000
500
The Field Communicator requires a minimum loop resistance of 250Ω for communication.
Figure 1-17. Rosemount 3051SHP, 3051SHP with HART Diagnostics (option code DA2), and
Maximum Loop Resistance = 43.5 x (Power Supply Voltage – 12.0)
1322
1000
500
The Field Communicator requires a minimum loop resistance of 250Ω for communication.
Advanced HART diagnostics suite (option code DA2)
Statistical process monitoring (SPM) provides statistical data (standard deviation, mean, coefficient of
variation) that can be used to detect process and process equipment anomalies, including plugged
impulse lines, air entrainment, pump cavitation, furnace flame instability, distillation column flooding
and more. This diagnostic allows you to take preventative measures before abnormal process situations
result in unscheduled downtime or rework.
Power advisory diagnostic pro-actively detects and notifies you of degraded electrical loop integrity
before it can affect your process operation. Example loop problems that can be detected include water in
the terminal compartment, corrosion of terminals, improper grounding, and unstable power supplies.
30
Operating
Region
0
10.5 20 30
42.4
Voltage (Vdc)
3051SHP with DP + T Measurement
Operating
Region
0
12.0 20 30
42.4
Voltage (Vdc)
Manual Supplement
00809-0100-4851, Rev AA
Rosemount 3051S High Pressure