Emerson Rosemount 8732 User manual

www.rosemount.com
¢00825-0100-4725.¤
Quick Installation Guide
00825-0100-4662, Rev CD
June 2013 Rosemount 8732
Start
Step 1: Pre-Installation
Step 2: Handling
Step 3: Mounting
Step 4: Installation
(Flanged Sensors)
(Wafer Sensors)
(Sanitary Sensors)
Step 5: Grounding
Step 6: Wiring
Step 7: Basic Configuration
Product Certifications
End
Rosemount 8732E Magnetic Flowmeter System
(Transmitter and Sensor)
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Quick Installation Guide
00825-0100-4662, Rev CD
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Rosemount 8732
2
© 2014 Rosemount Inc. All rights reserved. All marks property of owner.
IMPORTANT NOTICE
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.
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 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.
WARNING
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.
WARNING
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.
Emerson Process Management
Rosemount Flow
7070 Winchester Circle,
Boulder, CO 80301
Tel (USA) 800 522 6277
Tel (International) [phone]
Fax [phone]
Emerson Process
Management Flow
Neonstraat 1
6718 WX Ede
The Netherlands
T [phone]
F [phone]
Emerson Process
Management Asia Pacific
Private Limited
1 Pandan Crescent
Singapore 128461
T (65) 6777 8211
F (65) 6777 0947/65 6777 0743
Emerson FZE
P.O. Box 17033
Jebel Ali Free Zone
Dubai UAE
Tel [phone]
Fax [phone]
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Quick Installation Guide
00825-0100-4662, Rev CD
June 2013 Rosemount 8732
3
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).
If the Rosemount 8732 is mounted separately from the sensor, it is not subject to limitations
that might apply to the sensor.
NOTE:
* M20 and PG 13.5 connections are available with the use of threaded conduit adapters.
Figure 1. Rosemount 8732 Dimensional Drawing
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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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:
• HART Multidrop Configuration
•DiscreteOutput
•DiscreteInput
• Pulse Output
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.
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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 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.
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.
Failure Alarm Mode: HIGH
Internal/External Analog Power(1):
(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.
INTERNAL
Internal/External Pulse Power(1):EXTERNAL
Transmitter Security: OFF
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June 2013
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STEP 2: HANDLING
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
½- through 4-Inch Sensors
6-Inch and Larger Sensors
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June 2013 Rosemount 8732
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STEP 3: MOUNTING
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).
Installations with reduced upstream and downstream straight runs are possible. In reduced
straight run installations, absolute performance may shift. 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
tube adaptor points in the direction of flow through the sensor. See Figure 4.
Figure 3. Upstream and downstream straight pipe diameters
Figure 4. Flow Direction Arrow
5 Pipe Diameters 2 Pipe Diameters
Flow
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Rosemount 8732
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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.
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 6.
Avoid any mounting orientation that positions the top of the sensor at 90° from the vertical
position as shown on the left of Figure 6.
Figure 5. Sensor orientation
Figure 6. Mounting position
FLOW
FLOW
Correct
Incorrect
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00825-0100-4662, Rev CD
June 2013 Rosemount 8732
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STEP 4: INSTALLATION
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.
Flange Bolts
NOTE:
Do not bolt one side at a time. Tighten each side simultaneously. Example:
1. Snug upstream
2. Snug downstream
3. Tighten upstream
4. Tighten downstream
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 8 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
Figure 7. Flanged gasket placement
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Rosemount 8732
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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 8. Flange bolt torquing sequence
Table 1. Suggested Flange Bolt Torque Values for Rosemount 8705 and 8707 High-Signal
Sensors (ASME)
Size
Code Line Size
PTFE/ETFE/PFA
liners
Polyurethane/Neoprene/Linatex/Adiprene
liner
Class 150
(pound-feet)
Class 300
(pound-feet)
Class 150
(pound-feet)
Class 300
(pound-feet)
005 0.5 inch (15 mm) 8 8 - -
010 1 inch (25 mm) 812 - -
015 1.5 inch (40 mm) 13 25 718
020 2 inch (50 mm) 19 17 14 11
025 2.5 inch (65 mm) 22 24 17 16
030 3 inch (80 mm) 34 35 23 23
040 4 inch (100 mm) 26 50 17 32
050 5 inch (125 mm) 36 60 25 35
060 6 inch (150 mm) 45 50 30 37
080 8 inch (200 mm) 60 82 42 55
100 10 inch (250 mm) 55 80 40 70
120 12 inch (300 mm) 65 125 55 105
140 14 inch (350 mm) 85 110 70 95
160 16 inch (400 mm) 85 160 65 140
180 18 inch (450 mm) 120 170 95 150
200 20 inch (500 mm) 110 175 90 150
240 24 inch (600 mm) 165 280 140 250
300 30 inch (750 mm) 195 415 165 375
360 36 inch (900 mm) 280 575 245 525
15
3
7
8
4
62
8-bolt
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