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UMSITRPDS3-1 Appendix C - Elevation and Suppression Corrections

November 2010 13-3

13.4 RECOMMENDED METHOD

An alternative to making the above calculations and entering derived values is to shift the span directly

using the HART Communicator while adjusting the process levels.

1. Range the transmitter using the HART Communicator as for a zero-based span (e.g., 0-100 inH

O).

2. Install the transmitter on the process.

3. Fill the impulse pipe (wet legs) to the transmitter, but maintain the process at 0 (e.g., empty tank).

4. Perform one of the following:

• HART Communicator - From the Online menu, press 3 Device Setup, 3 Basic Setup, and then 4

LRV. Press ENTER to set the current pressure as the LRV. The configured span will be retained.

• Local Pushbuttons - Use the M pushbutton to select Mode 7. Set zero by simultaneously pressing

the ( and ' pushbuttons for 2 seconds; the selected current will appear in the display. The

configured span will be retained.

This completes the procedure.

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