Emerson Rosemount 2051 Reference Manual page 77

Reference Manual
00809-0100-4101
LT =
LT =
High trim value
HT = (URV – (S/100 × P/1000 × URV)
Where:
In this example:
URV =
S =
P =
HT =
HT =
Complete the sensor trim procedure as described on
at Step 4, apply the nominal pressure value of 500 inH
correct lower trim (LT) value of 506 inH
procedure for the upper value.
Note
The range values for the 4 and 20 mA (1 and 5 Vdc) points should be at the nominal URV
and LRV. In the example above, the values are 1500 inH
Confirm the values on the HOME screen on the HART Communicator. Modify, if needed, by
following the steps in the
Reference Manual
500 inH O – (–1%/100 × 1200 psi/1000 × 500 inH
2
506 inH O
2
HT = Corrected high trim value
URV = Upper range value
S = Span shift per specification (as a percent of reading)
P = Static line pressure in psi
1500 inH O (3.74 bar)
2
-1.00%
1200 psi
1500 – (–1%/100 × 1200 psi/1000× 1500 in H
1518 in H O
2
Rerange
O)
2
O)
2
Sensor
O. However, enter the calculated
2
O with the HART Communicator. Repeat the
®
2
O and 500 inH
2
section.
Operation and Maintenance
March 2024
trim. In the example above,
O respectively.
2
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