Emerson Rosemount 2051G, Reference Manual

Page: 23 / 90

15
Reference Manual
00809-0300-4410, Rev BA
Configuration
January 2018
Configuration
Figure 2-9. Rerange with Applied Pressure Using LOI
Local zero and span buttons
If ordered, local zero and span buttons (option code D4) can be used to rerange the transmitter with an
applied pressure. Refer to
Figure 2-10 on page 15 for analog zero and span button location.
To rerange the transmitter using the span and zero buttons, perform the following procedure:
1. Loosen the screw holding the top tag of the transmitter housing. Rotate the label to expose the zero
and span buttons.
2. Confirm device has local zero and span buttons by verifying blue retainer under the tag.
3. Apply transmitter pressure.
4. Rerange the transmitter.
a. To change the zero (4 mA) while maintaining the span: press and hold zero button for at least two
seconds then release.
b. To change the span (20 mA) while maintaining the zero point: press and hold the span button for
at least two seconds and then release.
Note
4 mA and 20 mA points must maintain the minimum span defined in Appendix A: Reference Data .
Figure 2-10. Analog Zero and Span Buttons
A. Zero and span buttons
RERANGE
ENTER VALUES
APPLY VALUES APPLY VALUES
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EXIT MENU
APPLY VALUES
LRV
URV
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE RERANGE
LOOP TEST
DISPLAY
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EXIT MENU
A