Long Term Stability; Dynamic Performance; Line Pressure Effect Per 1000 Psi (6,9 Mpa) - Emerson Rosemount 2051 Reference Manual

Reference Manual
00809-0100-4107, Rev BA
A.1.4

Long term stability

Models
2051C
Range 1 (CD)
Ranges 2-5
2051T
Ranges 1-5 ±0.1% of URL for 2 years
A.1.5

Dynamic performance

Total Response Time (T + T
d
2051C, Range 3-5:
Range 1:
Range 2:
2051T:
2051L:
Dead Time (Td)
Update Rate
(1) Dead time and update rate apply to all models and ranges; analog output only
(2) Nominal total response time at 75 °F (24 °C) reference conditions.
(3) Transducer block response time, Analog Input block execution time not included.
A.1.6

Line pressure effect per 1000 psi (6,9 MPa)

For line pressures above 2000 psi (13,7 MPa) and Ranges 4-5, see user manual (Document number 00809-0100-4001 for
HART, 00809-0100-4774 for F
Models
2051CD, 2051CF
Ranges 2-3 ±0.05% of URL/1000 psi (68.9 bar) for line pressures from 0 to 2000 psi (0 to 13.7 MPa)
Range 1 ±0.25% of URL/1000 psi (68.9 bar)
Ranges 2-3 ±0.1% of reading/1,000 psi (68.9 bar)
Range 1 ±0.4% of reading/1,000 psi (68.9 bar)
(1)Can be calibrated out at line pressure.
Appendix A: Specifications and Reference Data
Standard
±0.2% of URL for 1 year
±0.1% of URL for 2 years
(1)
4-20 mA HART
1-5 Vdc HART Low
Power
(2)
) :
c
115 ms
270 ms
130 ms
100 ms
®
See Instrument Toolkit
60 ms (nominal)
22 times per second
fieldbus, and 00809-0300-4101 for PROFIBUS PA)
OUNDATION
Line Pressure Effect
(1)
Zero Error
Span Error
Appendix A: Specifications and Reference Data
High Performance Option, P8
±0.125% of URL for 5 years
±0.125% of URL for 5 years
F
OUNDATION
fieldbus and
PROFIBUS PA Typical HART Transmitter Response
protocols (3) Time
152 ms
307 ms
Pressure Released
152 ms
152 ms
100%
See Instrument Toolkit
97 ms
22 times per second
36.8%
0%
April 2013
Transmitter Output vs. Time
T = Dead Time
d
T T
d c
T = Time Constant
c
Response Time = T
63.2% of Total
Step Change
Time
+T
d c
101