Emerson Rosemount 1152 Alphaline, Справочное руководство

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Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
3-12
7. Calculate the full-scale adjustment correction in terms of pressure:
8. Repeat step 4 with the results of step 7:
9. Repeat step 5 with the result of step 8:
10. Add the mA correction to the ideal full-scale output (20 mA). This is
the corrected ideal full-scale output.
11. Readjust the zero and span adjustments for corrected output.
There is an uncertainty of ±0.25 percent of input reading per 1,000 psi (±0.5%
input reading per 1,000 psi for Range Code 3) associated with the span
correction.
0.97% 300 inH
2
O
×
2.91 inH
2
O =
2.91 inH
2
O
400 inH
2
O input span
----------------------------------------------------------- 0.73% span =
0.73% 16 mA
×
0.117 mA =
20.00 mA 0.117 mA
+
20.117 mA
=