Emerson Rosemount 2051CF series, Quick Start Manual

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Figure 1-2: Common Transmitter Assemblies
A
4 × 1.75-in.
(44 mm)
D
4 × 1.75-in.
(44 mm)
4 × 2.25-in.
(57 mm)
C
4 × 1.75-in.
(44 mm)
4 × 1.50-in.
(38 mm)
B
4 × 2.88-in.
(73 mm)
A. Transmitter with coplanar flange
B. Transmitter with coplanar flange and optional flange adapters
C. Transmitter with traditional flange and optional flange adapters
D. Transmitter with coplanar flange and optional manifold and flange
adapters
Bolts are typically carbon steel or stainless steel. Confirm the material by
viewing the markings on the head of the bolt and referencing
Table 1-1 . If bolt
material is not shown in Table 1-1 , contact a local Emerson Process
Management representative for more information.
Carbon steel bolts do not require lubrication and the stainless steel bolts are
coated with a lubricant to ease installation. However, no additional lubricant
should be applied when installing either type of bolt.
Use the following bolt installation procedure:
Procedure
1. Finger tighten the bolts.
2. Torque the bolts to the initial torque value using a crossing pattern.
See Table 1-1 for initial torque value.
3. Torque the bolts to the final torque value using the same crossing
pattern. See Table 1-1 for final torque value.
4. Verify the flange bolts are protruding through the sensor module bolt
holes before applying pressure.
Quick Start Guide February 2019
6 Rosemount 2051 Pressure Transmitter and Rosemount 2051CF Series Flowmeter Quick Start Guide