Emerson Rosemount 8732EM User manual

Quick Start Guide
00825-0100-4444, Rev AI
March 2019
Rosemount™ 8732EM Transmitter with
HART Protocol

1 Safety
WARNING
•Failure to follow these installation guidelines could result in serious injury
or death.
•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.
•Rosemount Magnetic Flowmeters ordered with non-standard paint
options or non-metallic labels may be subject to electrostatic discharge.
To avoid electrostatic charge build-up, do not rub the flowmeter with a
dry cloth or clean with solvents.
•Verify that the operating environment of the sensor and transmitter is
consistent with the appropriate Agency Approval.
•If installed in an explosive atmosphere, verify that the device certification
and installation techniques are suitable for that particular environment.
•To prevent ignition of flammable or combustible atmosphere,
disconnect power before servicing circuits.
•Explosion hazard—Do not disconnect equipment when a flammable or
combustible atmosphere is present.
•Do not connect a Rosemount Transmitter to a non-Rosemount sensor
when installed in an “Ex” environment, explosive atmosphere, hazardous
area, or classified area.
•Follow national, local, and plant standards to properly earth ground the
transmitter and sensor. The earth ground must be separate from the
process reference ground.
CAUTION
•In cases where high voltage/high current are present near the meter
installation, ensure proper protection methods are followed to prevent
stray voltage/current from passing through the meter. Failure to
adequately protect the meter could result in damage to the transmitter
and lead to meter failure.
•Completely remove all electrical connections from both sensor and
transmitter prior to welding on the pipe. For maximum protection of the
sensor, consider removing it from the pipeline.
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2 Introduction
This document provides basic installation guidelines for the Rosemount
8732EM field-mount transmitter.
•For sensor installation refer to the Rosemount™ 8700 Magnetic Flow Meter
Sensor Quick Installation Guide
•For additional installation information, configuration, maintenance, and
troubleshooting, refer to the Rosemount™ 8732EM Transmitter with HART
Protocol Reference Manual
All user documentation can be found at www.emerson.com. For more
contact information see Emerson Flow customer service.
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.
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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
Netherlands
+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 [phone]
7000
Germany 0800 182
5347
Pakistan 888 550 2682
Brazil [phone]
8000
Italy 8008 77334 China [phone]
9000
Venezuela [phone]
3446
Central &
Eastern
+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
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3 Pre-installation
Before installing the transmitter, there are several pre-installation steps that
should be completed to make the installation process easier:
•Identify options and configurations that apply to your application
•Set the hardware switches if necessary
•Consider mechanical, electrical, and environmental requirements
Note
Refer to the product reference manual for more detailed requirements.
Identify options and configurations
The typical transmitter installation includes a device power connection, a
4-20mA output connection, and sensor coil and electrode connections.
Other applications may require one or more of the following configurations
or options
•Pulse output
•Discrete input/discrete output
•HART multidrop configuration
Hardware switches
The transmitter may have up to four user-selectable hardware switches.
These switches set the alarm mode, internal/external analog power,
internal/external pulse power, and transmitter security. The standard
configuration for these switches when shipped from the factory is as follows:
Table 3-1: Hardware switch default settings
Setting Factory configuration
Alarm mode High
Internal/external analog power Internal
Internal/external pulse power External
Transmitter security Off
The analog power switch and pulse power switches are not available when
ordered with intrinsically safe output, ordering code B.
In most cases, it is not necessary to change the setting of the hardware
switches. If the switch settings need to be changed, refer to the product
reference manual.
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Be sure to identify any additional options and configurations that apply to
the installation. Keep a list of these options for consideration during the
installation and configuration procedures.
Mechanical considerations
The mounting site for the transmitter should provide enough room for
secure mounting, easy access to conduit entries, full opening of the
transmitter covers, and easy readability of the Local Operator Interface (LOI)
screen (if equipped).
Figure 3-1: Rosemount 8732EM Dimensional Drawing
B
C
7.49
[190,0]
8.81
[224,0]
5.0
[128] 3.00
[76,2]
10.5
[130]
3.07
[78,0]
2.71
[76,2]
5.0
[128]
11.02
[280.0]
6.48
[164,6]
2.71
[68,8]
1.97
[50,0]
5.82
[148,0]
1.94
[49,0]
6.48
[164,6] A
A
A. Conduit entry ½–14 NPT or M20
B. LOI cover
C. Mounting screws
Electrical considerations
Before making any electrical connections to the transmitter, consider
national, local, and plant electrical installation requirements. Be sure to have
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the proper power supply, conduit, and other accessories necessary to
comply with these standards.
The transmitter requires external power. Ensure access to a suitable power
source.
Table 3-2: Electrical Data
Rosemount 8732EM Flow Transmitter
Power input AC power:
90–250VAC, 0.45A, 40VA
Standard DC power:
12–42VDC, 1.2A, 15W
Low power DC:
12–30VDC, 0.25A, 3W
Pulsed circuit Internally powered (Active): Outputs up to 12VDC,
12.1mA, 73mW
Externally powered (Passive): Input up to 28VDC,
100mA, 1W
4-20mA output circuit Internally Powered (Active): Outputs up to 25mA,
24VDC, 600mW
Externally Powered (Passive): Input up to 25mA,
30VDC, 750mW
Um 250V
Coil excitation output 500mA, 40V max, 9W max
Environmental considerations
To ensure maximum transmitter life, avoid extreme temperatures and
excessive vibration. Typical problem areas include the following:
•High-vibration lines with integrally mounted transmitters
•Tropical or 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.
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4 Mounting
Remote-mount transmitters are shipped wth a mounting bracket for use on
a 2-in. pipe or a flat surface.
Figure 4-1: Rosemount 8732 transmitter mounting hardware
A
B
D
C
A. U-bolt
B. Mounting bracket
C. Transmitter
D. Fasteners (example configuration)
1. Assemble the hardware as needed to accommodate the mounting
configuration.
2. Secure the transmitter to the mounting hardware.
The LOI/Display can be rotated in 90 degree increments up to 180 degrees if
desired. Do not rotate more than 180 degrees in any one direction.
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5 Wiring
5.1 Conduit entries and connections
Transmitter conduit entry ports can be ordered with ½"-14NPT or M20
female threaded connections. Conduit connections should be made in
accordance with national, local, and plant electrical codes. Unused conduit
entries should be sealed with the appropriate certified plugs. The plastic
shipping plugs do not provide ingress protection.
5.2 Conduit requirements
•For installations with an intrinsically safe electrode circuit, a separate
conduit for the coil cable and the electrode cable may be required. Refer
to the product reference manual.
•For installations with non-intrinsically safe electrode circuit, or when
using the combination cable, a single dedicated conduit run for the coil
drive and electrode cable between the sensor and the remote
transmitter may be acceptable. Removal of the barriers for intrinsic
safety isolation is permitted for non-intrinsically safe electrode
installations.
•Bundled cables from other equipment in a single conduit are likely to
create interference and noise in the system. See Figure 5-1.
•Electrode cables should not be run together in the same cable tray with
power cables.
•Output cables should not be run together with power cables.
•Select conduit size appropriate to feed cables through to the flowmeter.
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Figure 5-1: Best practice conduit preparation
A
B
B
C
D
E
E
E
A. Power
B. Output
C. Coil
D. Electrode
E. Safety ground
5.3 Sensor to transmitter wiring
Integral mount transmitters
Integral mount transmitters ordered with a sensor will be shipped
assembled and wired at the factory using an interconnecting cable. Use only
the factory supplied cable provided with the instrument. For replacement
transmitters use the existing interconnecting cable from the original
assembly. Replacement cables, if applicable, are available (see Figure 5-2).
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