Rosemount 8712EM Manuale utente
Quick Install Guide
00825-0100-4727, Rev DC
November 2017
Rosemount® 8700 Magnetic Flowmeter
Sensor
1 Handling and Lifting Safety
CAUTION!
To reduce the risk of personal injury or damage to equipment, follow all
lifting and handling instructions.
•Handle all parts carefully to prevent damage. Whenever possible,
transport the system to the installation site in the original shipping
container.
•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.
•Keep the shipping plugs in the conduit ports until you are ready to
connect and seal them. Appropriate care should be taken to prevent
water ingress.
•The sensor should be supported by the pipeline. Pipe supports are
recommended on both the inlet and outlet sides of the sensor pipeline.
There should be no additional support attached to the sensor.
•Use proper PPE (Personal Protection Equipment) including safety glasses
and steel toed shoes.
•Do not lift the meter by holding the electronics housing or junction box.
•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.
•Do not drop the device from any height.
Quick Install Guide November 2017
2Rosemount 8700 Magnetic Flowmeter Sensor
1.1 Lifting lugs
CAUTION!
If provided, use the lifting lugs on each flange to handle the Magnetic
Flowmeter when it is transported and lowered into place at the installation
site. If lifting lugs are not provided, the Magnetic Flowmeter must be
supported with a lifting sling on each side of the housing.
•Standard pressure 3-in. through 36-in. flanged magnetic flowmeters
come with lifting lugs.
•High pressure (above 600#) 1-in. through 24-in. flanged magnetic
flowmeters come with lifting lugs.
•Wafers and sanitary magnetic flowmeters do not come with lifting lugs.
Example lifting without and with lifting lugsFigure 1-1:
A. Without lifting lugs
B. With lifting lugs
November 2017 Quick Install Guide
Quick Install Guide 3
2 Introduction
This document provides basic installation guidelines for the Rosemount 8700
Magnetic Flowmeter sensor.
•For transmitter installation instructions, refer to the appropriate
Rosemount quick installation guide:
Product name Document number
8732EM Transmitter with HART® Protocol 00825-0100-4444
8732EM Transmitter with Modbus® RS-485 Protocol 00825-0400-4444
8712EM Transmitter with HART® Protocol 00825-0100-4445
8712EM Transmitter with Modbus® RS-485 Protocol 00825-0400-4445
8732E Magnetic Flowmeter System 00825-0100-4662
8732E Magnetic Flowmeter System with FOUNDATION™ fieldbus 00825-0100-4663
8732E Magnetic Flowmeter System with PROFIBUS PA digital fieldbus 00825-0100-4665
8712E Magnetic Flowmeter System 00825-0100-4664
8712H Magnetic Flowmeter Systems 00825-0100-4729
•For additional installation information, configuration, maintenance, and
troubleshooting, refer to the appropriate reference manual.
All user documentation can be found at www.emerson.com. For more contact
information see Section 2.2.
2.1 Return policy
Emerson procedures must be followed when returning equipment. These
procedures ensure legal compliance with government transportation
agencies and help provide a safe working environment for Emerson
employees. Failure to follow Emerson procedures will result in your
equipment being refused delivery.
Quick Install Guide November 2017
4Rosemount 8700 Magnetic Flowmeter Sensor
2.2 Emerson Flow customer service
Email:
•Worldwide: [email protected]
•Asia-Pacific: [email protected]
Telephone:
North and South America Europe and Middle East Asia Pacific
United States 800 522 6277 U.K. 0870 240 1978 Australia 800 158 727
Canada +1 303 527
5200
The Nether-
lands
+31 (0) 704 136
666
New Zealand 099 128 804
Mexico +41 (0) 41 7686
111
France 0800 917 901 India 800 440 1468
Argentina +54 11 4837
7000
Germany 0800 182 5347 Pakistan 888 550 2682
Brazil +55 15 3413
8000
Italy 8008 77334 China +86 21 2892
9000
Venezuela +58 26 1731
3446
Central & East-
ern
+41 (0) 41 7686
111
Japan +81 3 5769
6803
Russia/CIS +7 495 981
9811
South Korea +82 2 3438
4600
Egypt 0800 000 0015 Singapore +65 6 777 8211
Oman 800 70101 Thailand 001 800 441
6426
Qatar 431 0044 Malaysia 800 814 008
Kuwait 663 299 01
South Africa 800 991 390
Saudi Arabia 800 844 9564
UAE 800 0444 0684
November 2017 Quick Install Guide
Quick Install Guide 5
3 Location and Position
3.1 Environmental considerations
To ensure maximum transmitter life, avoid extreme temperatures and
excessive vibration. Typical problem areas include the following:
•Tropical/desert installations in direct sunlight
•Outdoor installations in arctic climates
Remote mounted transmitters may be installed in the control room to
protect the electronics from the harsh environment and to provide easy
access for configuration or service.
3.2 Upstream and downstream piping
To ensure specified accuracy over widely varying process conditions, install
the sensor with a minimum of five straight pipe diameters upstream and two
pipe diameters downstream from the electrode plane.
Upstream and downstream straight pipe diametersFigure 3-1:
A. Five pipe diameters (upstream)
B. Two pipe diameters (downstream)
C. Flow direction
Installations with reduced upstream and downstream straight runs are
possible. In reduced straight run installations, the meter may not meet
absolute accuracy specifications. Reported flow rates will still be highly
repeatable.
3.3 Flow direction
The sensor should be mounted so that the arrow points in the direction of
flow.
Quick Install Guide November 2017
6Rosemount 8700 Magnetic Flowmeter Sensor
Flow direction arrowFigure 3-2:
November 2017 Quick Install Guide
Quick Install Guide 7
3.4 Sensor piping location and orientation
The sensor should be installed in a location that ensures it remains full during
operation. Depending on where it is installed, orientation must also be
considered.
•Vertical installation with upward process fluid flow keeps the cross-
sectional area full, regardless of flow rate.
•Horizontal installation should be restricted to low piping sections that are
normally full.
Sensor orientationFigure 3-3:
A. Flow direction
Quick Install Guide November 2017
8Rosemount 8700 Magnetic Flowmeter Sensor
3.5 Electrode orientation
The electrodes in the sensor are properly oriented when the two
measurement electrodes are in the 3 and 9 o’clock positions or within 45
degrees from the horizontal, as shown on the left side of Figure 3-4. Avoid any
mounting orientation that positions the top of the sensor at 90 degrees from
the vertical position as shown on the right of the Electrode Orientation
figure.
Electrode orientationFigure 3-4:
A. Correct orientation
B. Incorrect orientation
The sensor may require a specific orientation to comply with Hazardous Area
T-code rating. Refer to the approrpirate reference manual for any potential
restrictions.
November 2017 Quick Install Guide
Quick Install Guide 9
4 Sensor Installation
4.1 Flanged sensors
Gaskets
The sensor requires a gasket at each process connection. The gasket material
must be compatible with the process fluid and operating conditions. Gaskets
are required on each side of a grounding ring (see Figure 4-1). All other
applications (including sensors with lining protectors or a grounding
electrode) require only one gasket on each process connection.
Note
Metallic or spiral-wound gaskets should not be used as they will damage the
liner face of the sensor. If spiral wound or metallic gaskets are required for
the application, lining protectors must be used.
Gasket placement for flanged sensorsFigure 4-1:
A. Grounding ring and gasket (optional)
B. Customer-supplied gasket
Bolts
Note
Do not bolt one side at a time. Tighten both sides simultaneously. Example:
1. Snug upstream
Quick Install Guide November 2017
10 Rosemount 8700 Magnetic Flowmeter Sensor
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