Specifications

Reference Manual
00809-0100-4801, Rev FA
October 2010
Rosemount 3051S Series
4-12
In this example:
To calculate the low trim (LT) value:
To calculate the high trim (HT) value:
Complete a 3051S sensor trim and enter the corrected values for low trim (LT)
and high trim (HT), refer to “Sensor Trim” on page 4-6.
Enter the corrected input values for low trim and high trim through the Field
Communicator keypad after you apply the value of pressure as the transmitter
input.
NOTE
After sensor trimming 3051S Range 4 and 5 transmitters for high differential
pressure applications, verify that the 4 and 20 mA points are at values using
the Field Communicator. For the example above, this would be 500 and 1500
respectively. The zero effect can be eliminated by doing a zero sensor trim at
line pressure after installation without affecting the completed calibration.
URV = 1500 inH
2
O (3.74 bar)
LRV = 500 inH
2
O (1.25 bar)
P = 1200 psi (82.74 bar)
S = ± 0.01/1000
LT = 500 + (0.01/1000)(500)(1200)
LT = 506 inH
2
O (1.26 bar)
HT = 1500 + (0.01/1000)(1500)(1200)
HT = 1518 inH
2
O (3.78 bar)