Answer / carl_ellis

The Rosemount 2051 manual describes how to use HART to
configure the LRV (Lower RangeValue) and the URV (Upper
Range Value) which define the range represented by the 4.0
and 20.0mA output in the section "Rerange with a HART
Communicator or AMS Device Manager Only".

Using the pushbuttons requires a pressure source (which can
be liquid in the tank, or a calibration source) as described
in section "Rerange with a Pressure Input Source and a HART
Communicator or AMS Device Manager"

But if you don't answer the questions I posed in the
previous post, then you won't know what values to use for
LRV and URV.

Carl Ellis
Measure First

1. What means HART communicator / where it is used / how to use it? 2. Types of Thermocouples and its temperature ranges / output of thermocouple? 3. Types of RTDs and its temperature ranges / output of RTD? 4. Idea about Temperature Transmitters? 5. Difference between Analog and Digital signals? 6. Difference between “2 wire” and “4 wire” system / instruments? 7. Difference between “Potential” and “Potential free” contact? 8. Types of flow meters / transmitters? 9. Types of level transmitters? 10. Difference between “Power/Control” cable and “Instrument” cable? 11. What means “shield” and “screen” in cables / how it is useful? 12. Draw a schematic of closed loop circuit of flow / level / pressure / temperature? 13. Idea about calibration of Control valve / positioned / I/P? 14. How to bypass a digital/analog signal in PLC/DCS by hardwire and software?

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hii my name is sujith...i am preparing for HPVL GET 2010... so ,,,pls help me by send any previous questions or material to my site.....(Msujith_12@in.com) thank q

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