Emerson Rosemount 520 User manual

Quick Start Guide
00825-0100-4520, Rev AC
February 2019
Rosemount™520 Level Transmitter
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Quick Start Guide
NOTICE
This guide provides basic guidelines for Rosemount 520 Level Transmitters. It does not provide instructions
for configuration, diagnostics, maintenance, service, troubleshooting, or Intrinsically safe installations. Refer
to the Rosemount 520 Reference Manual for more information.This manual is also available electronically on
Emerson.com/Rosemount.
Explosions could result in death or serious injury.
Installation of this transmitter in hazardous areas must be in accordance with the appropriate local, national,
and international standards, codes, and practices. Review approvals section of the Rosemount 520 Reference
Manual for any restrictions associated with a safe installation.
Before connecting a HART®-based communicator in an explosive atmosphere, make sure the instruments in
the loop are installed in accordance with intrinsically safe or non-incentive field wiring practices.
Electrical shock can result in death or serious injury.
Avoid contract with the leads and the terminals. High voltage that may be present on leads can cause
electrical shock.
Contents
System readiness . . . . . . . . . . . . . . . . . . . . . . . . . 3
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mount the transmitter . . . . . . . . . . . . . . . . . . . . 4
Connect wiring and power up . . . . . . . . . . . . . 13
Verify transmitter configuration (optional) . 16
Trim the transmitter (optional) . . . . . . . . . . . . 17
Product Certifications . . . . . . . . . . . . . . . . . . . . 18
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1.0 System readiness
1.1 HART Communication
The Rosemount 520 utilizes the HART Communications Protocol. The most
notable advantage of employing HART Communications is that digital
information can be transmitted over legacy 4–20mA analog instrumentation
wiring. In addition to providing device diagnostics and process alerts, the ability
to communicate to the device remotely simplifies basic configuration,
calibration, and maintenance. A task-oriented, user optimized interface
eliminates errors and speeds routine maintenance tasks.
For the Rosemount 520, HART Protocol facilities two basic operation
configurations.
Point-to-point
In this configuration, digital signals are superimposed on the 4–20 mA loop
current. One process variable is sent on the 4–20 mA signal and other secondary
or calculated process variables can be transmitted digitally over the 4–20 mA
signal.
Multidrop
Multidrop refers to the connection of several transmitters to a single
communication transmission line. Communication between the host and the
transmitters occurs digitally with the analog output of the transmitters
deactivated. With HART Revision 7, up to 63 transmitters can be connected on a
single twisted pair of wires. Multidrop installation requires consideration of the
update rate necessary from each transmitter, the combination of transmitter
models, and the length of the transmission line.
For more information, reference “Connect wiring and power up” on page 13.
1.2 Configuration tools
There are several tools that can be used to configure the Rosemount 520.
The Field Communicator is a portable, handheld device used to configure field
devices or perform diagnostics for effective troubleshooting in the field without
having to use a laptop. The Field Communicator supports all HART devices and is
available in an intrinsically safe version.
HART modems allow AMS™Device Manager to communicate with HART devices
using a PC serial port, PC USB port, or Bluetooth®connectivity. Serial and USB
HART modems attach directly to a PC or laptop computer and do not require an
external power supply. Bluetooth HART modems require a self-contained power
source (AAA batteries) as well as a Bluetooth-ready workstation PC.
HART modems also allow the Rosemount Transmitter Interface Software (RTIS)
to communicate with HART devices using a PC USB or serial port. The RTIS is a
PC-based application that performs configuration and maintenance functions for
the Rosemount 520 Transmitter. The Rosemount 520 is not shipped with the
RTIS; the RTIS can be ordered separately.
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1.3 Confirm HART Revision capability
If using HART-based control or asset management systems, confirm the HART
capability of those systems prior to transmitter installation. Not all systems are
capable of communicating with HART Revision 7 Protocol.
1.4 Confirm correct device driver
Verify the latest device driver (DD/DTM™) is loaded on your system to ensure
proper communication.
Download the latest DD/DTM at EmersonProcess.com.
2.0 Handling
Proper handling of the Rosemount 520 is critical. To avoid damaging the
transmitter, avoid doing the following:
Lifting by the cable if the transmitter is mounted with fittings
Removing the protective diaphragm cap before installation
Applying pressure to the diaphragm using fingers, tools, or sharp objects
Using sharp objects to clean the diaphragm
Submerging or blocking the vent tube
Bending the cable within a radius of less than 90mm
3.0 Mount the transmitter
Note
All installation methods described in the following sections are grounded. If a different installation
method is used, the transmitter must be grounded to meet EMC and hazardous location
requirements.
3.1 Internal mounting
1. Secure the bracket to the tank wall.
2. Secure the transmitter by use of the provided spring. The spring is fitted into
the two holes in the bracket. The transmitter can be mounted and
dismounted without the use of tools.
3. Secure the transmitter cable to the tank wall.
Note
Emerson recommends protecting the cable by appropriate means to avoid the cable being
damaged from, for example, sloshing waves.
Emerson recommends installing the transmitter in locations with limited or no turbulence.
Emerson recommends avoiding this specific mounting method for service tanks due to challenges
associated with performing service and maintenance. Other mounting methods, such as pole
mounting, flexible rubber tube mounting and flexible PTFE tube mounting are recommended for
installation inside service tanks.
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Figure 1. Installation Drawing
A. Optional junction box
B. Optional bulkhead fitting
C. Dead zone
D. Lowest tank bottom
E. Transmitter
F. Mounting bracket
G. Mounting spring
A
B
C
D
F
E
G
38
Ø 12
55
125
160
50
41
194.5
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3.2 Pole mounting
1. Install a suitable deck socket on top of the tank.
2. Secure the transmitter inside the pipe by use of the provided nut and gasket.
The recommended torque is 20 N-m.
Figure 2. Installation Drawing
A. Optional junction box
B. Tank top
C. Dead zone
D. Lowest tank bottom
E. Transmitter
F. Pipe max. length 2000 mm (yard supply)
G. Gasket
H. Welding nipple for pole, length 40 mm
I. 1-in. end cap
A
B
CD
F
E
H
IG
34
26
40
30
193
24
26
41
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3.3 1-in. pipe end mounting
1. Secure the provided nipple pipe to the tank wall or to a ball valve.
2. Secure the transmitter to the nipple pipe by use of the provided nut and
gasket. The recommended torque is 20 N-m.
Figure 3. Installation Drawing
A. Optional junction box
B. Tank top
C. Dead zone
D. Tank bottom
E. Vent pipe
F. Gasket
G. Nut
H. Nipple pipe, length 80 mm
I. Transmitter
J. Ball valve (yard supply)
A
B
C
D
E
F
JHGI
34 26 30
25
55
80
193 24
26 41
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3.4 Flange mounting
1. Install a suitable flange connection to the tank wall.
2. Secure the provided flange to the tank flange connection.
3. Secure the transmitter in the flange by use of the provided nut and gasket. The
recommended torque is 20 N-m.
Note
Emerson recommends installing a ball valve between the tank wall and transmitter to
facilitate transmitter service and maintenance.
Figure 4. Installation Drawing
A. Optional junction box
B. Refer to Table 1
C. Tank top
D. Refer to Table 1
E. Dead zone
F. Tank botto m
G. Vent pipe
H. Flange
I. Gasket
J. Transmitter
K. Refer to Table 1
L. Nipple pipe connector
C
A
G
FE
I
DK
BH
LJ
d
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Table 1. Flange Size for Flange Mounting
Standard D (mm) B (mm) K (mm) d x n (mm)
DN25 PN16 115 16 85 14 x 4
DN40 PN16 150 18 110 18 x 4
JIS25A—16K 125 14 90 19 x 4
JIS40A—16K 140 16 105 19 x 4
1-in. ANSI/150 108 16 79 16 x 4
11/2-in. ANSI/150 127 17.5 98.6 16 x 4
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3.5 Flange with 1-in. ball valve mounting
1. Install a suitable flange connection to the tank wall.
2. Secure the provided flange and ball valve to the tank flange connection.
3. Secure the transmitter in the ball valve by use of the provided nut and gasket.
The recommended torque is 20 N-m.
Figure 5. Installation Drawing
A. Optional junction box
B. Refer to Table 2
C. Tank top
D. Refer to Table 2
E. Dead zone
F. Tank botto m
G. Vent pipe
H. Flange
I. 1-in. ball valve
J. 1-in. nipple pipe connector 1-to 1-in.
K. Refer to Table 2
L. Gasket
M. 1-in. nut
N. Transmitter
Table 2. Flange Size for Flange with 1-in Ball Valve
Standard D (mm) B (mm) K (mm) d x n (mm)
DN25 PN16 115 16 85 14 x 4
JIS25A—16K 125 14 90 19 x 4
1-in. ANSI/150 108 16 79 16 x 4
A
G
C
FE
HIJ
LMN
64
315
DK
d
B
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