Emerson Rosemount 520 Manual de usuario

Quick Start Guide

00825-0100-4520, Rev AC

February 2019

Rosemount™520 Level Transmitter

00825-0100-4520_RevAC.fm Page 1 Thursday, February 7, 2019 10:16 AM

February 2019

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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Quick Start Guide

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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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Quick Start Guide

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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Quick Start Guide

February 2019

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

Ø 12

125

160

194.5

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February 2019

Quick Start Guide

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

193

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Quick Start Guide

February 2019

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)

JHGI

34 26 30

193 24

26 41

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February 2019

Quick Start Guide

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

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Quick Start Guide

February 2019

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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February 2019

Quick Start Guide

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

HIJ

LMN

315

00825-0100-4520_RevAC.fm Page 10 Thursday, February 7, 2019 10:16 AM

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