This document provides basic installation 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 00809-0100-4662)
for more instructions. The manual and this QIG are also available electronically on
www.rosemount.com.
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 sensor and transmitter is consistent
with the appropriate FM, CSA, ATEX, or IECEx approval.
Do not connect a Rosemount 8732 to a non-Rosemount sensor that is located in an
explosive atmosphere.
December 2012
The sensor liner is vulnerable to handling damage. Never place anything through the
sensor for the purpose of lifting or gaining leverage. Liner damage can render the sensor
useless.
To avoid possible damage to the sensor 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 sensor ends are often used for protection.
Correct flange bolt tightening is crucial for proper sensor 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 sensor lining and possible sensor
replacement.
Rosemount 8705 Magnetic Flowtube units ordered with non-standard paint options may
be subject to electrostatic discharge.
To avoid electrostatic charge build-up, do not rub the meter body with a dry cloth or clean
with solvents.
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Quick Installation Guide
STEP 1: PRE-INSTALLATION
5.82
(148)
6.48 (165)
7.49 (190)
LOI Cover
4.97
(126)
8.81
(224)
3.00
(76)
3.07
(78)
4.97
(126)
1
/2”-14 NPT, (3 places)*
1
/2”-14 NPT, (2 places)*
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December 2012
Rosemount 8732
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).
If the Rosemount 8732 is mounted separately from the sensor, it is not subject to limitations
that might apply to the sensor.
Figure 1. Rosemount 8732 Dimensional Drawing
NOTE:
* M20 and PG 13.5 connections are available with the use of threaded conduit adapters.
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Quick Installation Guide
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Rosemount 8732
December 2012
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 provide easy access for configuration or service.
Both remotely and integrally mounted Rosemount 8732 transmitters require external power
so 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 bracket to the pipe using the mounting hardware.
2. Attach the Rosemount 8732 to the mounting bracket using the mounting screws.
Identify Options and Configurations
The standard application of the 8732 includes a 4–20 mA output and control of the sensor
coils and electrodes. Other applications may require one or more of the following
configurations or options:
• Multidrop Communications
• Digital Output
• Digital Input
• 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 four user-selectable hardware switches. These
switches set the Failure Alarm Mode, Internal/External Analog Power, Internal/External
Pulse Power, and Transmitter Security. The st andard configuration for these switches when
shipped from the factory are as follows:
Failure Alarm Mode: HIGH
Internal/External Analog
(1)
Power
Internal/External Pulse Power
:
INTERNAL
(1)
: EXTERNAL
Transmitter Security:OFF
(1) For electronics with intrinsically safe (I.S. Output) approvals, analog and pulse power must be
provided externally. The electronics do not include these hardware switches.
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Quick Installation Guide
00825-0100-4662, Rev CC
December 2012
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.
Rosemount 8732
Electrical Considerations
Before making any electrical connections to the Rosemount 8732, consider local and plant
electrical standards and be sure to have the proper power supply, conduit, and other
accessories necessary to comply with these standards.
Rotate Transmitter Housing
The electronics housing can be rotated on the sensor 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 sensor.
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Quick Installation Guide
STEP 2: HANDLING
½- through 4-Inch Sensors
6-Inch and Larger Sensors
00825-0100-4662, Rev CC
Rosemount 8732
Handle all parts carefully to prevent damage. Whenever possible, transport the system to
the installation site in the original shipping containers. PTFE-lined sensors 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 Sensor Support for Handling
December 2012
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Quick Installation Guide
STEP 3: MOUNTING
5 Pipe Diameters
2 Pipe Diameters
Flow
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December 2012
Rosemount 8732
Upstream/Downstream Piping
To ensure specification accuracy over widely varying process conditions, install the sensor a
minimum of five straight pipe diameters upstream and two pipe diameters downstream from
the electrode plane (see Figure 3).
Figure 3. Upstream and Downstream Straight Pipe Diameters
Installations with reduced straight runs from 0 to five pipe diameters are possible. In reduced
straight pipe run installations, performance will shift to as much as 0.5% of rate. Reported
flow rates will still be highly repeatable.
Flow Direction
The sensor should be mounted so the FORWARD end of the flow arrow, shown on the
sensor identification tag, points in the direction of flow through the sensor.
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Quick Installation Guide
FLOW
FLOW
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Rosemount 8732
December 2012
Sensor Location
The sensor should be installed in a location that ensures the sensor 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.
Figure 4. Sensor Orientation
Sensor Orientation
The electrodes in the sensor are properly orientated when the two measurement electrodes
are in the 3 and 9 o’clock positions or within 45° from the vertical, as shown on the right of
Figure 5. Avoid any mounting orientation that positions the top of the sensor at 90° from the
vertical position as shown on the left of Figure 5.
Figure 5. Mounting Position
Incorrect
Correct
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Quick Installation Guide
STEP 4: INSTALLATION
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December 2012
Rosemount 8732
Flanged Sensors
Gaskets
The sensor 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 a
grounding ring. All other applications (including sensors with lining protectors or a grounding
electrode) require only one gasket on each end connection.
Figure 6. Flanged gasket placement
Flange Bolts
NOTE
Do not bolt one side at a time. Tighten each side simultaneously. Example:
1. Snug left
2. Snug right
3. Tighten left
4. Tighten right
Do not snug and tighten the upstream side and then snug and tighten the downstream side.
Failure to alternate between the upstream and downstream flanges when tightening bolts
may result in liner damage.
Suggested torque values by sensor line size and liner type are listed in Table 1 for ASME
B16.5 flanges and Table 2 for EN flanges. Consult the factory if the flange rating of the
sensor is not listed. Tighten flange bolts on the upstream side of the sensor in the
incremental sequence shown in Figure 7 to 20% of the suggested torque values. Repeat the
process on the downstream side of the sensor. For sensors 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 sensor flanges stop.
If leakage has not stopped at the suggested torque values, the bolts can be tightened in
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Quick Installation Guide
1
5
3
7
8
4
6
2
8-bolt
00825-0100-4662, Rev CC
Rosemount 8732
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 sensor liner material.
Check for leaks at the flanges after tightening the bolts. Failure to use the correct tightening
methods can result in severe damage. Sensors require a second tightening 24 hours after
the initial installation. Over time, sensor liner materials may deform under pressure.
Figure 7. Flange Bolt Torquing Sequence
December 2012
Table 1. Suggested Flange Bolt Torque Values for Rosemount 8705 and 8707 High-Signal
Sensors
PTFE/ETFE/PFA
liners
Size
Code
0050.5 inch (15 mm)88-0101 inch (25 mm)812-0151.5 inch (40 mm)1325718
0202 inch (50 mm)19171411
0252.5 inch (65 mm)22241716
0303 inch (80 mm)34352323
0404 inch (100 mm)26501732
0505 inch (125 mm)36602535
0606 inch (150 mm)45503037
0808 inch (200 mm)60824255
10010 inch (250 mm)55804070
12012 inch (300 mm)6512555105
14014 inch (350 mm)851107095
16016 inch (400 mm)8516065140
18018 inch (450 mm)12017095150
20020 inch (500 mm)11017590150
24024 inch (600 mm)165280140250
30030 inch (750 mm)195415165375
36036 inch (900 mm)280575245525
Line Size
Class 150
(pound-feet)
Class 300
(pound-feet)
Polyurethane/Neoprene/Linatex/Adiprene
liner
Class 150
(pound-feet)
Class 300
(pound-feet)
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Quick Installation Guide
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December 2012
Table 2. Flange Bolt Torque and Bolt Load Specifications for 8705 (EN 1092-1)
PTFE/ETFE liner
PN10PN 16PN 25PN 40
Size Code
0050.5-inch
0101 inch
0151.5 inch
0202 inch
0252.5 inch
0303 inch
0404 inch
0505.0 inch
0606 inch
0808 inch
10010 inch
12012 inch
14014 inch
16016 inch
18018 inch
20020 inch
24024 inch
Line Size (Newton-meter)(Newton-meter)(Newton-meter)(Newton-meter)
(15 mm)
(25 mm)
(40 mm)
(50 mm)
(65 mm)
(80 mm)
5070
(100 mm)
70100
(125 mm)
90130
(150mm)
13090130170
(200 mm)
100130190250
(250 mm)
120170190270
(300 mm)
160220320410
(350 mm)
220280410610
(400 mm)
190340330420
(450 mm)
230380440520
(500 mm)
290570590850
(600 mm)
Rosemount 8732
10
20
50
60
50
50
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Quick Installation Guide
00825-0100-4662, Rev CC
Rosemount 8732
Table 2. (continued) Flange Bolt Torque and Bolt Load Specifications for 8705 (EN 1092-1)
Polyurethane, Linatex, Adiprene and Neoprene Liners