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Reference Manual
00809-0100-4102, Rev AA
Appendix A: Reference Data
May 2013
Specifications and Reference Data
A.4 Physical specifications

A.4.1 Electrical connections

HART interface connections fixed to the Power Module.

A.4.2 Process connections

Rosemount 2051C

1/4–18 NPT on 21/8-in. centers
1/2–14 NPT on 2-in. (50.8 mm), 21/8-in. (54.0 mm), or 21/4-in. (57.2 mm) centers

Rosemount 2051T

1/2–14 NPT female,
G1/2 A DIN 16288 Male (available in SST for Range 1–4 transmitters only)

Rosemount 2051L

High pressure side: 2-in.(50.8mm), 3-in. (72 mm), or 4-in. (102mm), ASME B 16.5 (ANSI) Class
150, 300 or 600 flange; 50, 80 or 100 mm, DIN 2501 PN 40 or 10/16 flange
Low pressure side: 1/4–18 NPT on flange, 1/2–14 NPT on process adapter

Rosemount 2051CF

For Rosemount 2051CFA, see 00813-0100-4485 Rosemount 485 Annubar
For Rosemount 2051CFC, see 00813-0100-4485 Rosemount 405 Compact Orifice Plate
For Rosemount 2051CFP, see 00813-0100-4485 Rosemount 1195 Integral Orifice

A.4.3 Process-Wetted parts

Process isolating diaphragms

Drain/vent valves

316 SST, Alloy C-276, or Alloy 400/K-500 material
(Alloy 400/K-500 is not available with 2051L).
Isolating Diaphragm
Material
2051CD/CG
2051T
2051CA
2051H
316L SST • • • •
Alloy C-276 • • • •