a) Field mounted, two-wire capacitance (DP/GP/LL) or piezoresistive (AP/GP) high performance pressure transmitters with HART based digital communication capabilities.
b) Small lightweight coplanar design.
c) Rosemount Model 2051C Differential, Gage, or Absolute
d) Rosemount Model 2051T Gage or Absolute
e) Rosemount Model 2051L Liquid Level.
2.) APPROVALS
a) Materials supplied under this specification shall be in conformance with:
· National Electric Code (NFPA 70) 501-5 by incorporating a two-compartment electronics housing for separation of the process medium and the electrical conduit.
· National Electrical Manufacturer’s Association (NEMA), 4X
· Factory Mutual (FM) explosion-proof enclosure for Class I, Division 1, Groups B, C, and D.
3.) ENVIRONMENTAL CONDITIONS
a) Suitable for the following conditions:
Relative humidity: 0 to 100%
Ambient Temperature: -40 to 185 °F
b) Dual-compartmental housing with a moisture barrier totally isolating the electronic circuitry from the field wiring and the calibration terminals.
4.) MATERIALS OF CONSTRUCTION
a) Housing: Polyurethane coated aluminum or optional 316 SS.
b) Process flanges: 316 SST, Alloy C-276 or Carbon Steel
c) Diaphragms 316 SST, Alloy C-276, or other.
d) Drain / Vent Material: 316 SST or Alloy C-276
5.) PROCESS CONDITIONS
a) Suitable for liquid, gas, and vapor service.
b) Process temperature limits:
Silicone fill: -40 to 300 °F (-40 – 149 °C)
Inert fill: 0 to 185 °F (-18 – 85 °C)
c) Overpressure Limit shall be 4500 psi or greater
d) Burst Pressure limits:
Coplanar style transmitters: 10,000 psi
In-line style transmitters: up to 26,000 psi
e) Vibration Effects: Less than 0.1% of URL when tested per the requirements of IEC 60770-1
6.) ELECTRICAL
a) Electrical connections ½”-14 NPT.
b) Operate on 10.5 to 55 V dc.
c) Electromagnetic Compatibility (EMC): Meets all relevant requirements of EN 61326 and NAMUR NE-21
d) Power Supply Effect: +/- 0.005% calibrated span per volt
7.) OUTPUTS
a) 4-20 mA plus HART digital signal
b) User selectable linear or square root function.
c) Damping adjustable 0 to 36 seconds.
8.) PERFORMANCE and PROCESS CONNECTIONS
Coplanar - DIFFERENTIAL or GAGE
a) Reference accuracy shall be at least ±0.075% of span.
b) Rangeability shall be at least 100:1
c) Operating stability shall be 0.1% of URL for 2 years or greater
d) Transmitter update rate shall be 22 times per second or greater
e) Total response time shall be 130 ms or greater
f) Coplanar platform enables integrated manifold, primary elements and diaphragm seal solutions
g) ¼”-18 NPT coplanar flanges
h) ½”-14 NPT flange adapters
i) Spans/ranges from 0.5” WC to 2,000 PSI.
j) 3 Sigma conformance to published specifications.
Inline - GAGE or ABSOLUTE
a) Reference accuracy shall be at least ±0.075% of span.
b) Rangeability shall be at least 100:1
c) Operating stability shall be 0.1% of URL for 2 years or greater
d) Transmitter update rate shall be 22 times per second or greater
e) Total response time shall be 130 ms or greater
f) ½”-14 NPT process connections
g) Spans/ranges from 0.3” WC to 10,000 PSI.
h) 3 Sigma conformance to published specifications.
LIQUID LEVEL
a) Reference Accuracy up to ±0.075% of span
b) Flush or 2”, 4”, or 6”extended diaphragms.
c) High side: 2”, 3”, or 4” ANSI Class 150, 300, or 600 flange
d) Low side: ¼”-18 NPT coplanar flange or ½”-14 NPT flange adapter
e) Spans/ranges from 2.5” WC to 300 PSI.
f) 3 Sigma conformance to published specifications.
9.) SOFTWARE FUNCTIONALITY
a) Transmitter shall be capable of digital communication over the 4-20mA output loop without interruption using HART Protocol
b) Transmitter shall perform continuous diagnostics, be capable of self-test functions, and be able to give specific diagnostic information
c) Configuration capabilities shall allow the user the ability to input and store information including range, engineering units, damping, square root or linear output, drain/vent valves, flange and o-ring materials, date, message, descriptor, tag number, and remote seal information.
d) Process variable and sensor module temperature information shall be available digitally.
e) Transmitter software security shall be user selectable.
f) Upscale/Downscale failure mode shall be user selectable.
10.) OPTIONS
a) Digital indicating meter with diagnostic capabilities.
b) Mounting brackets.
c) Factory assembled and leak-tested manifolds for isolation and calibration.
d) Remote diaphragm seals.
e) High pressure options.
f) High accuracy options
g) Zero and span hardware adjustments
h) Factory assembled and leak-tested primary elements.
i) Calibration Certificates.
j) 375 HART Handheld Communicator or AMS Intelligent Device Manager Software for configuration, calibration, diagnostics, and documentation.
FOR GREATER DETAILS SEE THE ENCLOSED ROSEMOUNT PRODUCT CD OR VISIT WWW.ROSEMOUNT.COM.