Rosemount 8732 Series User manual

www.rosemount.com
¢00825-0100-4725.¤
Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
Rosemount Magnetic Flowmeter
System (Transmitter and Flowtube)
Step 1: Pre-Installation
Step 2: Handling
Step 3: Mounting
Step 4: Installation (Flanged Flowtubes)
Step 4: Installation (Wafer Flowtubes)
Step 4: Installation (Sanitary Flowtubes)
Step 5: Grounding
Step 6: Wiring
Step 7: Basic Configuration
Start
Step 9: Power up the Transmitter
Step 10: Check Process Connections
Step 11: Confirm Configuration
End
Step 8: Process Leak Protection (Optional)
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
© 2003 Rosemount Inc. All rights reserved. All marks property of owner.
IMPORTANT NOTICE
This installation guide provides basic guidelines for the
Rosemount®8732. It does not provide instructions for detailed
configuration, diagnostics, maintenance, service, troubleshooting,
explosion-proof, flame-proof, or intrinsically safe (I.S.) installations.
Refer to the Rosemount 8732 reference manual (document number
00809-0100-4725) for more instructions. The manual and this QIG
are also available electronically on www.rosemount.com.
WARNING
Failure to follow these installation guidelines could result in
death or serious injury:
Installation and servicing instructions are for use by qualified
personnel only. Do not perform any servicing other than that
contained in the operating instructions, unless qualified. Verify that
the operating environment of the flowtube and transmitter is
consistent with the appropriate FM, CSA, or ATEX approval.
Do not connect a Rosemount 8732 to a non-Rosemount flowtube
that is located in an explosive atmosphere.
Rosemount Inc.
12001 Technology Drive
Eden Prairie, MN USA
55344
T (US) [phone]
T (Intnl) [phone]
F [phone]
Fisher-Rosemount
Flow
Groeneveldselaan 6-8
3903 AZ Veenendaal
The Netherlands
Tel [phone]
Fax [phone]
Emerson Process
Management Asia Pacific
Private Limited
1 Pandan Crescent
Singapore 128461
T (65) 6777 8211
F (65) 6777 0947/65 6777 0743
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
STEP 1: PRE-INSTALLATION
Before installing the Rosemount 8732 Magnetic Flowmeter
Transmitter, there are several pre-installation steps that should be
completed to make the installation process easier:
• Identify the options and configurations that apply to
your application
• Set the hardware switches if necessary
• Consider mechanical, electrical, and environmental requirements
Mechanical Considerations
The mounting site for the Rosemount 8732 transmitter should provide
enough room for secure mounting, easy access to conduit ports, full
opening of the transmitter covers, and easy readability of the LOI
screen (see Figure 1). The transmitter should be mounted in an
upright position.
If the Rosemount 8732 is mounted separately from the flowtube, it
is not subject to limitations that might apply to the flowtube.
WARNING
The flowtube liner is vulnerable to handling damage. Never place
anything through the flowtube for the purpose of lifting or gaining
leverage. Liner damage can render the flowtube useless.
To avoid possible damage to the flowtube liner ends, do not use
metallic or spiral-wound gaskets. If frequent removal is anticipated,
take precautions to protect the liner ends. Short spool pieces
attached to the flowtube ends are often used for protection.
Correct flange bolt tightening is crucial for proper flowtube operation
and life. All bolts must be tightened in the proper sequence to the
specified torque limits. Failure to observe these instructions could
result in severe damage to the flowtube lining and possible flowtube
replacement.
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
Figure 1. Rosemount 8732 Dimensional Drawing
5.82
(148)
4.97
(126)
6.48 (165)
3.07
(78)
8.81
(224)
4.97 (126)
3/4”-14 NPT Electrical
Conduit Connections
(2 places)
3/4”-14 NPT Flowtube
Conduit Connections
(2 places)
7.49 (190)
1.88 (47)
3.00
(76)
LOI Cover
8742-8742_06a, 8742_06b, 1002G01A
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
Environmental Considerations
To ensure maximum transmitter life, avoid excessive heat and
vibration. Typical problem areas:
• high-vibration lines with integrally mounted transmitters
• warm-climate installations in direct sunlight
• outdoor installations in cold climates.
Remote-mounted transmitters may be installed in the control room to
protect the electronics from the harsh environment and provides easy
access for configuration or service.
Both remotely and integrally mounted Rosemount 8732 transmitters
require external power and there must be access to a suitable power
source.
Installation Procedures
Rosemount 8732 installation includes both detailed mechanical and
electrical installation procedures.
Mount the Transmitter
At a remote site the transmitter may be mounted on a pipe up to two
inches in diameter or against a flat surface.
Pipe Mounting
To mount the transmitter on a pipe:
1. Attach the mounting plate to the pipe using the mounting hardware.
2. Attach the Rosemount 8732 to the mounting plate using the
mounting screws.
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
Identify Options and Configurations
The standard application of the 8732 includes a 4–20 mA output and
control of the flowtube coils. Other applications may require one or
more of the following configurations or options:
• Multidrop Communications
• Auxiliary Output
• Pulse Output
Additional options may apply. Be sure to identify those options and
configurations that apply to your situation, and keep a list of them
nearby for consideration during the installation and configuration
procedures.
Hardware Jumpers/Switches
The 8732 electronics board is equipped with
three user-selectable hardware switches. These switches set the
Failure Alarm Mode, Internal/External Analog Power, and Transmitter
Security. The standard configuration for these switches when shipped
from the factory are as follows:
Changing Hardware Switch Settings
In most cases, it is not necessary to change the setting of the
hardware switches. If you need to change the switch settings,
complete the steps outlined in the manual.
Failure Alarm Mode: HIGH
Internal/External Analog Power: INTERNAL
Transmitter Security: OFF
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
Electrical Considerations
Before making any electrical connections to the Rosemount 8732,
consider the following standards and be sure to have the proper power
supply, conduit, and other accessories.
Rotate Transmitter Housing
The electronics housing can be rotated on the flowtube in 90°
increments by loosening the four mounting bolts on the bottom of the
housing, and reinstalling the bolts. When the housing is returned to its
original position, be sure the surface is clean and there is no gap
between the housing and the flowtube.
STEP 2: HANDLING
Handle all parts carefully to prevent damage. Whenever possible,
transport the system to the installation site in the original shipping
containers. Teflon®-lined flowtubes are shipped with end covers that
protect it from both mechanical damage and normal unrestrained
distortion. Remove the end covers just before installation.
Figure 2. Rosemount 8705 Flowtube Support for Handling
½- through 4-Inch
Flowtubes 6-Inch and Larger
Flowtubes
8732-0281B02A, C02A
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
STEP 3: MOUNTING
Upstream/Downstream Piping
To ensure specification accuracy over widely varying process
conditions, install the flowtube a minimum of five straight pipe
diameters upstream and two pipe diameters downstream from the
electrode plane (see Figure 3).
Flow Direction
The flowtube should be mounted so the FORWARD end of the flow
arrow, shown on the flowtube identification tag, points in the direction
of flow through the tube.
Flowtube Orientation
The flowtube should be installed in a position that ensures the
flowtube remains full during operation. Vertical installation allows
upward process fluid flow and keeps the cross-sectional area full,
regardless of flow rate. Horizontal installation should be restricted to
low piping sections that are normally full. In these cases, orient the
electrode plane to within 45 degrees of horizontal.
Figure 3. Upstream and Downstream Straight Pipe Diameters
5 Pipe Diameters 2 Pipe Diameters
Flow
8732-0281G02A
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
The electrodes in the Rosemount 8705 flowtube are properly
orientated when the two measurement electrodes are in the 3 and 9
o’clock positions, as shown on the right of Figure 4.
The electrodes in the Rosemount 8711 are properly orientated when
the top of the flowtube is either vertical or horizontal, as shown in
Figure 5. Avoid any mounting orientation that positions the top of the
flowtube at 45° from the vertical or horizontal position.
Figure 4. Flowtube Orientation
Figure 5. Rosemount 8711 Mounting Position
FLOW
A
8732-0005A01A, 8732-0005A01C
FLOW
45° Electrode Plane
8711-8711-E01A, 8711-8711-F01A
45° Electrode Plane
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Quick Installation Guide
00825-0100-4725, Rev BA
July 2003 Rosemount 8732/8700 Series
STEP 4: INSTALLATION (FLANGED FLOWTUBE)
Gaskets
The flowtube requires a gasket at each of its connections to adjacent
devices or piping. The gasket material selected must be compatible with the
process fluid and operating conditions. Metallic or spiral-wound gaskets
can damage the liner. Gaskets are required on each side of the
grounding ring. All other applications (including flowtubes with lining
protectors or a grounding electrode) require only one gasket on each
end connection.
Flange Bolts
Suggested torque values by flowtube line size and liner type are listed
in Table 1 for ASME B16.5 (ANSI) and Table 2 for DIN flanges.
Consult the factory if the flange rating of the flowtube is not listed.
Tighten flange bolts on the upstream side of the flowtube in the
incremental sequence shown in Figure 6 to 20% of the suggested
torque values. Repeat the process on the downstream side of the
flowtube. For flowtubes with more or less flange bolts, tighten the bolts
in a similar crosswise sequence. Repeat this entire tightening
sequence at 40%, 60%, 80%, and 100% of the suggested torque
values or until the leak between the process and flowtube flanges
stop.
If leakage has not stopped at the suggested torque values, the bolts
can be tightened in additional 10% increments until the joint stops
leaking, or until the measured torque value reaches the maximum
torque value of the bolts. Practical consideration for the integrity of the
liner often leads the user to distinct torque values to stop leakage due
to the unique combinations of flanges, bolts, gaskets, and flowtube
liner material.
Check for leaks at the flanges after tightening the bolts. Failure to use
the correct tightening methods can result in severe damage.
Flowtubes require a second tightening 24 hours after the initial
installation. Over time, flowtube liner materials may deform under
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