Rosemount 405 Quick Start Guide
Quick Start Guide
00825-0100-4810, Rev HA
Rosemount™ 405 Compact Primary
Element
June 2016
Quick Start Guide
June 2016
NOTICE
This guide provides basic guidelines for Rosemount 405. It does not provide instructions for configuration,
diagnostics, maintenance, service, troubleshooting, Explosion-pr oof, Flameproof, or intrinsically safe (I.S.)
installations. Refer to the Rosemount 405 Reference Manual (document number 00809-0100-4810) for
more instruction. This manual is also available electronically on www.rosemount.com.
If the Rosemount 405 was ordered assembled to a Rosemount
Rosemount 3051SFC Compact Flowmeter. See the following Quick Start Guide for information on
configuration and hazardous locations certifications: Rosemount 3051S Series Pressure Transmitter
(document number 00825-0100-4801).
If the Rosemount 405 was ordered assembled to a Rosemount 3051S MultiVariable™ Tra nsm itt er, th e ne w
assembly is the Rosemount 3051SFC Compact Flowmeter. See the following Quick Start Guide for
information on configuration and hazardous locations certifications: 3051S MultiVariable Transmitter
(document number 00825-0100-4803).
Process leaks may cause harm or result in death.
To avoid process leaks, use only gaskets designed to seal with the corresponding flange and O-rings to seal
process connections.
To ensure correct operation download the most current version of the Engineering Assistant software at:
EmersonProcess.com/en-US/brands/rosemount/Pressure/Pressure-Transmitters/MultiVariable-Transmitters/
3051S-MultiVariable/engineering-assistant6/Pages/index.aspx.
3051S Transmitter, the new assembly is the
Contents
Primary element location . . . . . . . . . . . . . 3
Primary element orientation . . . . . . . . . . 5
2
Primary element installation . . . . . . . . . 10
Product certifications . . . . . . . . . . . . . . . 13
June 2016
1.0 Primary element location
Quick Start Guide
Install the Rosemount 405 in the correct location within the piping branch to
prevent inaccurate measurement caused by flow disturbances.
Table 1. 405C Straight Pipe Requirements
Beta 0.40 0.50 0.65
Reducer 2 2 2
Single 90° bend or tee 2 2 2
Two or more 90° bends in the same plane 2 2 2
Two or more 90° bends in different planes 2 2 2
Up to 10° of swirl 2 2 2
side of primary
Upstream (inlet)
Butterfly valve (75% to 100% open) 2 5 5
Downstream (outlet) side of primary
Table 2. 405P Straight Pipe Requirements
Beta 0.40 0.50 0.65
Reducer 5 8 12
Single 90° bend or tee 16 22 44
Two or more 90° bends in the same plane 10 18 44
Two or more 90° bends in different planes 50 75 60
Expander 12 20 28
side of primary
Upstream (inlet)
Ball/gate valve fully open 12 12 18
Downstream (outlet) side of primary
1
Table 3. 405 Straight Run Requirements
Annubar™ averaging pitot tube - sensor
size 1
Reducer 12 12 8 4
Expander 18 18 8 4
Single 90° bend or tee 8 10 8 4
Two or more 90° bends in the same plane 11 16 8 4
Two or more 90° bends in different planes 23 28 8 4
side of primary
Butterfly Valve (75–100% open) 30 30 8 4
Upstream (inlet)
Ball/Gate Valve fully open 8 10 8 4
Downstream (outlet) side of primary
(1)
(1)(2)
(1)
Without
straightening vane
In
plane
Out of
(4)
4 4 4 4
plane
(4)
(1)(2)(3) (4)
2 2 2
6 6 7
With straightening vane
From
disturbance
(3)
From
straightening
vane
1. Consult an Emerson™ Process Management representative if a disturbance is not listed.
2. If using flow straighteners, refer to ISO 5167 for recommended links.
3. Use straightening vane to reduce the required straight run length.
4. In plane means the Rosemount 405 is in the same plane as the elbow. Out of plane means the bar is
perpendicular to the plane of the upstream elbow. Refer to Figure 1 on page 4
.
3
Quick Start Guide
FLOW
FLOW
In plane
Out of plane
Note
Recommended lengths are represented in pipe diameters. If longer lengths of straight run
are available, position the Rosemount 405 so 80% of the pipe run is upstream and 20% is
downstream.
Flow conditioners may be used to reduce the required straight run length, improving
performance.
Figure 1. Compact Annubar Flowmeter In Plane and Out of Plane
June 2016
Note
The above figure depicts in plane and out of plane orientations only. Refer to Tab le 3 on
page 3 for recommended straight run requirements.
1.1 Vibration limits for Rosemount 405 products
Qualified per IEC61298-3 (2008) for field with general application or pipeline with
low vibration level (10–1000 Hz test frequency range, 0,15 mm displacement
peak amplitude, 20 m/s
The weight and length of the transmitter assembly shall not exceed 9.8 lb
(4,45 kg) and 8.60-in. (218,44 mm).
1. Stainless steel temperature housing is not recommended with primary element technology A in appl ications with
mechanical vibration.
4
2
acceleration amplitude)
(1).(1)
June 2016
FLOW
Quick Start Guide
2.0 Primary element orientation
The primary element can be installed in any position around the circumference of
the pipe, provided the vents are positioned properly for bleeding or venting.
Optimal results for liquid or steam in a vertical line are obtained when flow is up.
Liquid - 405C, 405P, and 405A
Figure 2. Direct Mount
Horizontal liquid
45°
AA
30°
A. Recommended zone 30°
Figure 3. Remote Mount
Horizontal liquid Vertical liquid
45°
5
Quick Start Guide
Gas - 405C, 405P, and 405A
Figure 4. Direct Mount
Horizontal gas Vertical gas
June 2016
Flow
A
45° 45°
A. Recommended zone 90°
Figure 5. Remote Mount
Horizontal gas Vertical gas
FLOW
360°
6
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