Emerson Rosemount 2051 Reference Manual page 84

Operation and Maintenance
September 2020
Note
Zero static pressure effect removed by zero trimming at line pressure.
4. Calculate the stability per month.
5. Calculate calibration frequency.
5.5.2 Sample calculation for Rosemount 2051C with P8 option
(0.05% accuracy & 5-year stability)
Procedure
1. Determine the performance required for your application.
2. Determine the operating conditions.
3. Calculate total probable error (TPE).
TPE =
of span
Where:
84
Required Performance
Transmitter
Calibrated Span
Ambient Temperature Change ± 50 °F (28 °C)
Line Pressure
Reference ± 0.05% of span
Accuracy =
Ambient
Temperature
Effect =
Span Static
Pressure
Effect=
0.30% of span
2051CD, Range 2 [URL=250 inH
150 inH O (374 mbar)
2
500 psig (34,5 bar)
Rosemount 2051 Pressure Transmitter
Reference Manual
00809-0100-4107
O(623 mbar)]
2
= 0.117%