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Reference Manual
00809-0200-4101, Rev AA
July 2008
Rosemount 2051
A-4
FUNCTIONAL
SPECIFICATIONS
Range and Sensor Limits
Service Liquid, gas, and vapor applications
Protocols 4–20 mA HART (Output Code A)
Output
Two-wire 4–20 mA, user-selectable for linear or square root output. Digital
process variable superimposed on 4–20 mA signal, available to any host
that conforms to the HART protocol.
Power Supply
External power supply required. Standard transmitter operates on 10.5 to
42.4 V dc with no load.
Turn-On Time
Performance within specifications less than 2.0 sections after power is
applied to the transmitter.
2051CD, 2051CG, 2051L
Range
Minimum Span
Range and Sensor Limits
Upper (URL)
Lower (LRL)
2051C Differential 2051C Gage
(1)
2051L Differential 2051L Gage
(1)
1 0.5 inH
2
O
(1,2 mbar)
25 inH
2
O
(62,3 mbar)
–25 inH
2
O
(–62,1 mbar)
–25 inH
2
O
(–62,1 mbar)
N/A N/A
2 2.5 inH
2
O
(6,2 mbar)
250 inH
2
O
(0,62 bar)
–250 inH
2
O
(–0,62 bar)
–250 inH
2
O
(–0,62 bar)
–250 inH
2
O
(–0,62 bar)
–250 inH
2
O
(–0,62 bar)
3 10 inH
2
O
(24,9 mbar)
1000 inH
2
O
(2,49 bar)
-1000 inH
2
O
(-2,49 bar)
–393 inH
2
O
(–979 mbar)
–1000 inH
2
O
(–2,49 bar)
–393 inH
2
O
(–979 mbar)
4 3 psi
(0,207 bar)
300 psi
(20,6 bar)
-300 psi
(-20,6 bar)
–14.2 psig
(–979 mbar)
–300 psi
(–20,7 bar)
–14.2 psig
(–979 mbar)
5 20 psi
(1,38 bar)
2000 psi
(137,9 bar)
-2000 psi
(-137,9 bar)
–14.2 psig
(–979 mbar)
N/A N/A
(1) Assumes atmospheric pressure of 14.7 psig.
Range
2051T
Minimum
Span
Range and Sensor Limits
Upper
(URL)
Lower
(LRL) (Abs)
Lower
(1)
(LRL) (Gage)
1 0.3 psi
(20,6 mbar)
30 psi
(2,06 bar)
0 psia
(0 bar)
–14.7 psig
(–1,01 bar)
2 1.5 psi
(0,103 bar)
150 psi
(10,3 bar)
0 psia
(0 bar)
–14.7 psig
(–1,01 bar)
3 8 psi
(0,55 bar)
800 psi
(55,2 bar)
0 psia
(0 bar)
–14.7 psig
(–1,01 bar)
4 40 psi
(2,76 bar)
4000 psi
(275,8 bar)
0 psia
(0 bar)
–14.7 psig
(–1,01 bar)
5 2000 psi
(137,9 bar)
10000 psi
(689,4 bar)
0 psia
(0 bar)
–14.7 psig
(–1,01 bar)
(1) Assumes atmospheric pressure of 14.7 psig.