Emerson Rosemount 3051S Series, Справочное руководство

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Reference Manual
00809-0100-4801, Rev FA
October 2010
Rosemount 3051S Series
3-12
CHECK OUTPUT
Before performing other transmitter on-line operations, review the digital
output parameters to ensure that the transmitter is operating properly and is
configured to the appropriate process variables.
Process Variables The process variables for the 3051S provide transmitter output, and are
continuously updated. The pressure reading in both engineering units and
percent of range will continue to track with pressures outside of the defined
range from the lower to the upper range limit of the SuperModule.
Field Communicator v3.3
The process variable menu displays the following process variables:
• Pressure
• Percent of range
• Analog output
• Module temperature
• Scaled Variable (SV)
• Primary Variable (PV)
NOTE
Regardless of the range points, the 3051S will measure and report all
readings within the digital limits of the sensor. For example, if the 4 and 20 mA
points are set to 0 and 10 inH
2
O, and the transmitter detects a pressure of
25 inH
2
O, it digitally outputs the 25 inH
2
O reading and a 250% of span
reading. However, there may be up to ±5.0% error associated with output
outside of the range points.
AMS v7.0
Right click on the device and select “Process Variables...” from the menu.The
process variable screen displays the following process variables:
• Pressure
• Percent of range
• Analog output
• Module temperature
• Scaled Variable (SV)
• Primary Variable (PV)
Module Temperature
The 3051S contains a temperature sensor near the pressure sensor in the
SuperModule. When reading this temperature, keep in mind the sensor is not
a process temperature reading.
Field Communicator v3.3
Enter the fast key sequence “Module Temperature” to view the sensor
temperature reading.
AMS v7.0
Right click on the device and select “Process Variables...” from the menu.
“Module Temp” is the sensor temperature reading.
Traditional Fast Keys
1, 1
Device Dashboard
Fast Keys
3, 2
Traditional Fast Keys 1, 1, 4
Device Dashboard
Fast Keys
3, 2, 3