Functional Specifications; Range And Sensor Limits; A.2 Functional Specifications - Emerson Rosemount 2051 Reference Manual

Specifications and Reference Data
November 2016
Mounting position effects
Models Mounting position effects
Zero shifts up to ±1.25 inH
2051C
which can be calibrated out. No span effect.
Zero shifts up to ±2.5 inH
2051T
which can be calibrated out. No span effect.
With liquid level diaphragm in vertical plane,
zero shift of up to 1 inH
diaphragm in horizontal plane, zero shift of
2051L
up to 5 inH O (12,43 mbar) plus extension
2
length on extended units. Zero shifts can be
calibrated out. No span effect.
Vibration effect
Less than ±0.1% of URL when tested per the requirements of
IEC60770-1 field or pipeline with high vibration level
(10–60 Hz 0.21mm displacement pea amplitude/
60–2000 Hz 3g).

A.2 Functional specifications

A.2.1 Range and sensor limits
Table A-1. Range and Sensor Limits for Rosemount 2051CD, 2051CF, 2051CG, 2051L models
Minimum
Upper (URL)
span
0.5 inH O 25 inH
2
1
(1,2 mbar) (62,3 mbar)
2.5 inH O 250 inH
2
2
(6,2 mbar) (0,62 bar)
10 inH O 1000 inH
2
3
(24,9 mbar) (2,49 bar)
3 psi 300 psi
4
(0,207 bar) (20,7 bar)
20 psi 2000 psi
5
(1,38 bar) (137,9 bar)
1. Assumes atmospheric pressure of 14.7 psig.
Table A-2. Range and Sensor Limits for Rosemount 2051T model
Minimum
span
1 0.3 psi (20,7 mbar)
2 1.5 psi (0,103 bar)
3 8 psi (0,55 bar)
4 40 psi (2,76 bar)
5 2,000 psi (137,9 bar)
1. Assumes atmospheric pressure of 14.7 psig.
64
O (3,1 mbar),
2
O (6,2 mbar),
2
O (2,49 mbar). With
2
2051C Differential and
2051CF Flowmeters
O –25 inH O
2 2
(–62,1 mbar)
O –250 inH O
2 2
(–0,62 bar)
O –1000 inH O
2 2
(–2,49 bar)
–300 psi
(–20,7 bar)
–2000 psi
(–137,9 bar)
Upper
(URL)
30 psi (2,07 bar)
150 psi (10,3 bar)
800 psi (55,2 bar)
4000 psi (275,8 bar)
10,000 psi (689,5 bar)
Power supply effect
Less than ±0.005% of calibrated span per volt.
Electromagnetic compatibility (EMC)
Meets all relevant requirements of EN 61326 and
(2)
NAMUR NE-21.
Maximum deviation < 1% Span during EMC disturbance.
1. Does not apply to wireless (output code X).
2. NAMUR NE-21 does not apply to wireless output code X.
3. During surge event device may exceed maximum EMC deviation
limit or reset; however, device will self-recover and return to
normal operation within specified start-up time.
Transient protection (option code T1)
Meets IEEE C62.41, category location B
6 kV crest (0.5 μs–100 kHz)

3 kA crest (8 20 microseconds)

6 kV crest (1.2 50 microseconds)

Lower (LRL)
(1)
2051C Gage
Differential
–25 inH O
2
(–62,1 mbar)
–250 inH O –250 inH
2
(–0,62 bar) (–0,62 bar)
–393 inH O –1000 inH
2
(–979 mbar) (–2,49 bar)
–14.2 psig
(–979 mbar) (–20,7 bar)
–14.2 psig
(–979 mbar)
Lower
(LRL)(Abs)
0 psia (0 bar)
0 psia (0 bar)
0 psia (0 bar)
0 psia (0 bar)
0 psia (0 bar)
Reference Manual
00809-0300-4101, Rev BB
(1)
2051L
2051L Gage
N/A N/A
O –250 inH
2 2
(–0,62 bar)
O –393 inH
2 2
(–979 mbar)
–300 psi –14.2 psig
(–979 mbar)
N/A N/A
(1)
Lower
(LRL)(Gage)
–14.7 psig (–1,01 bar)
–14.7 psig (–1,01 bar)
–14.7 psig (–1,01 bar)
–14.7 psig (–1,01 bar)
–14.7 psig (–1,01 bar)
Specifications and Reference Data
(3)
(1)
O
O