Emerson Rosemount 3051 Series User manual

Quick Start Guide
00825-0100-4007, Rev HC
March2023
Rosemount™ 3051 Pressure
Transmitter and 3051CF Series Flow
Meter
with 4-20 mA HART®

Contents
About this guide...........................................................................................................................3
Mounting the transmitter........................................................................................................... 5
Housing rotation........................................................................................................................13
Set the switches......................................................................................................................... 14
Connect the wiring and power up........................................................................................... 15
Configuration parameters........................................................................................................ 19
Trim the transmitter.................................................................................................................. 22
Safety Instrumented Systems (SIS)..........................................................................................24
Product certifications................................................................................................................ 25
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1 About this guide
This guide provides basic guidelines for Rosemount 3051
Transmitters. It does not provide instructions for configuration,
diagnostics, maintenance, service, troubleshooting, Explosion-Proof,
Flame-Proof, or intrinsically safe (I.S.) installations. Refer to the
Rosemount 3051 Manual for more instructions. This guide is also
available electronically on Emerson.com/Rosemount.
1.1 Safety messages
DANGER
Explosions
Explosions could result in death or serious injury.
Before connecting a handheld communicator in an explosive
atmosphere, ensure that the instruments are installed in
accordance with intrinsically safe or non-incendive field wiring
practices.
In an explosion-proof/flameproof installation, do not remove the
transmitter covers when power is applied to the unit.
DANGER
Process leaks
Process leaks may cause harm or result in death.
To avoid process leaks, only use the O-ring designed to seal with
the corresponding flange adapter.
DANGER
Electrical shock
Electrical shock can result in death or serious injury.
Avoid contact with the leads and terminals. High voltage that may
be present on leads can cause electrical shock.
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WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to
and/or misconfiguration of end users’ equipment. This could be
intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and
fundamental in protecting your system. Restrict physical access by
unauthorized personnel to protect end users’ assets. This is true for
all systems used within the facility.
CAUTION
Conduit/cable entries
Unless otherwise marked, the conduit/cable entries in the housing
enclosure use a ½–14 NPT form. Only use plugs, adapters, glands, or
conduit with a compatible thread form when closing these entries.
Entries marked “M20” are M20 × 1.5 thread form. On devices with
multiple conduit entries, all entries will have the same thread form.
When installing in a hazardous location, use only appropriately listed
or Ex certified plugs, glands, or adapters in cable/conduit entries.
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2 Mounting the transmitter
NOTICE
Consider process connection and ambient temperatures when
installing the 3051 with hazardous location certifications. Process
connection temperatures above +85 °C require a limited ambient
temperature, reduced by a 1:1.5 ratio. See Table 2-1.
Table 2-1: Intrinsically safe/increased safety
Process connection temperature Maximum ambient temperature
-60 °C to +85 °C +70 °C
+85 °C to +121 °C +70 °C to +16 °C(1)
(1) Maximum ambient temperature is reduced by a ratio of 1:1.5 as process
connection temperature increased beyond +85 °C.
2.1 Mount the transmitter in a liquid flow application
Procedure
1. Place taps to the side of the line.
2. Mount the transmitter beside or below the taps.
3. Mount the transmitter so that the drain/vent valves are
oriented upward.
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2.2 Mount the transmitter in a gas flow application
NOTICE
A bracket required to support the transmitter and the ¼-in. tubing
going into the transmitter.
Procedure
1. Place taps in the top or side of the line.
2. Mount the transmitter beside or above the taps.
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2.3 Steam flow applications
Procedure
1. Place taps to the side of the line.
2. Mount beside or below the taps.
3. Fill impulse lines with water.
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2.4 Panel and pipe mount
Figure 2-1: Panel and Pipe Mounting
Panel mount(1) Pipe mount
Coplanar flange
Traditional flange
Rosemount 3051T
Rosemount 3051H
(1) 5/16 x 1½ panel bolts are customer supplied.
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2.5 Bolting considerations
If the transmitter installation requires assembly of the process
flanges, manifolds, or flange adapters, follow these assembly
guidelines to ensure a tight seal for optimal performance
characteristics of the transmitters. Use only bolts supplied with the
transmitter or sold by Emerson as spare parts. Figure 2-2 illustrates
common transmitter assemblies with the bolt length required for
proper transmitter assembly.
Figure 2-2: 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 2-2. If bolt material is not shown in Table 2-2, contact the local
Emerson representative for more information.
2.5.1 Bolt installation
Note
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.
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Procedure
1. Finger-tighten the bolts.
2. Torque the bolts to the initial torque value using a crossing
pattern (see Table 2-2 for torque values).
3. Torque the bolts to the final torque value using the same
crossing pattern (see Table 2-2 for torque values).
4. Verify that the flange bolts are protruding through the isolator
plate before applying pressure.
Table 2-2: Torque Values for the Flange and Flange Adapter
Bolts
Bolt
material
Head markings Initial
torque
Final
torque
Carbon
Steel (CS)
B7M
 300 in-lb 650 in-lb
Stainless
Steel (SST)
316
316
316
SW
316
STM
316
R
B8M

150 in-lb 300 in-lb
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