
47
Rosemount 3051
September 2014
www.rosemount.com
Dynamic performance
Line pressure effect per 1000 psi (68,95 bar)
Ambient temperature effect per 50 °F (28 °C)
4 - 20 mA HART
(1)
FOUNDATION fieldbus
and PROFIBUS PA
protocols
(3)
Typical HART transmitter response
time
Total Response Time (T
d
+ T
c
)
(2)
:
3051C
Ranges 2-5
Range 1
Range 0
3051T
3051L
100 ms
255 ms
700 ms
100 ms
See Instrument Toolkit
152 ms
307 ms
N/A
152 ms
See Instrument Toolkit
Dead Time (Td)
45 ms (nominal) 97 ms
Update Rate
(4)
22 times per second 22 times per second
(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.
(4) Does not apply to wireless (output Code X). See
“Wireless (output code X)” on page 52
for wireless update rate.
T
c
T
d
T
d
= Dead Time
T
c
= Time Constant
Pressure
Response Time = T
d
+T
c
63.2% of Total
Step Change
Time
0%
10
36.
Transmitter Output vs. Time
For line pressures above 2000 psi (137,90 bar) and Ranges 4-5, see user manual
(Document number 00809-0100-4007 for HART, 00809-0100-4100 for WirelessHART, 00809-0100-4774 for
F
OUNDATION fieldbus, and 00809-0100-4797 for PROFIBUS PA).
Models Line pressure effect
3051CD, 3051CF Zero Error
Ranges 2-3 ±0.05% of URL/1000 psi (68,95 bar) for line pressures from 0 to 2000 psi (0 to 137,90 bar)
Range 1 ±0.25% of URL/1000 psi (68,95 bar) for line pressures from 0 to 2000 psi (0 to 137,90 bar)
Range 0 ±0.125% of URL/100 psi (6,89 bar) for line pressures from 0 to 750 psi (0 to 51,71 bar)
Span Error
Ranges 2-3 ±0.1% of reading/1000 psi (68,95 bar)
Range 1 ±0.4% of reading/1000 psi (68,95 bar)
Range 0 ±0.15% of reading/100 psi (68,95 bar)
Models Ambient temperature effect
3051C
Ranges 2-5
±(0.0125% URL + 0.0625% span) from 1:1 to 5:1
±(0.025% URL + 0.125% span) from 5:1 to 150:1
Range 1
±(0.1% URL + 0.25% span) from 1:1 to 30:1
±(0.14% URL + 0.15% span) from 30:1 to 50:1
Range 0 ±(0.25% URL + 0.05% span) from 1:1 to 30:1
3051CA
Ranges 1-4
±(0.025% URL + 0.125% span) from 1:1 to 30:1
±(0.035% URL + 0.125% span) from 30:1 to 150:1
3051T
Range 2-4
±(0.025% URL + 0.125% span) from 1:1 to 30:1
±(0.035% URL + 0.125% span) from 30:1 to 150:1
Range 1
±(0.025% URL + 0.125% span) from 1:1 to 10:1
±(0.05% URL + 0.125% span) from 10:1 to 100:1
Range 5 ±(0.1% URL + 0.15% span) from 1:1 to 5:1
3051L See Instrument Toolkit software.
Komentáře k této Příručce