Detailed Product Description

Confidence in your measurement
The 2051 capabilities are designed to meet a wide
range of applications. Combining 0.075% reference
accuracy, 100:1 rangedown, and extended two-year
stability provides confidence in your pressure
measurements.
Output protocols enable easy integration
The 2051 is available in 4-20mA HART, Low Power
HART, or FOUNDATION fieldbus output protocols.
Easily integrate the 2051 into existing or new
installations.
Coplanar platform enables integrated
solutions
The versatile Coplanar platform design enables the
best process connection for pressure, flow, and level
applications. The final 2051 assembly arrives factory
calibrated, pressure-tested, and ready to install. The
flexible design reduces engineering and inventory
costs.
Complete pressure offering
The 2051 family of pressure transmitters offers
differential, gage, and absolute pressure
measurements. The complete offering ensures the
2051 meets your measurement needs.
Rosemount 2051C Differential and Gage
See ordering information on page 26.
Performance of 0.075% accuracy, optional 0.065%
Two-year stability of 0.10%, optional five-year stability
Coplanar platform enables integrated manifold,
primary element and diaphragm seal solutions
Calibrated spans/ranges from 0.5 inH2O to 2000 psi
(1,2 mbar to 276 bar)
316L SST and Alloy C-276 process wetted parts
Rosemount 2051T Gage and Absolute
See ordering information on page 30.
Performance of 0.075% accuracy, optional 0.065%
Two-year stability of 0.10%, optional
five-year stability
Calibrated spans/ranges from 0.3 to 10000 psi
(10,3 mbar to 689 bar)
Multiple process connections available
316L SST and Alloy C-276 process wetted parts
Rosemount 2051L Liquid Level
See ordering information on page 33.
Performance of 0.075% accuracy
Welded fill fluid system provides
best-in-class system reliability
Flush and extended diaphragms
Multiple fill fluids and process wetted
materials available.
PERFORMANCE SPECIFICATIONS
For zero based spans, reference conditions, silicone oil fill, SST materials, Coplanar flange (2051C) or 1/2 in. - 14 NPT (2051T) process connections,
digital trim values set to equal range points.
Conformance To Specification (±3σ (Sigma))
Technology leadership, advanced manufacturing techniques and statistical process control ensure specification conformance to at least ±3σ.
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 peak amplitude / 60-2000 Hz 3g).
Power Supply Effect
All Models
Less than ±0.005% of calibrated span per volt.
Electromagnetic Compatibility (EMC)
All Models
Meets all relevant requirements of EN 61326 and NAMUR NE-21.
Transient Protection (Option Code T1)
All Models:
Meets IEEE C62.41, Category Location B
6 kV crest (0.5 μs - 100 kHz)
3 kV crest (8 × 20 microseconds)
6 kV crest (1.2 × 50 microseconds)
Meets IEEE C37.90.1, Surge Withstand Capability
SWC 2.5 kV crest, 1.0 MHz wave form
Protocols
420 mA HART (Output Code A)
Output
Two-wire 420 mA, user-selectable for linear or square root
output. Digital process variable superimposed on 420 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.