Rosemount 751 Manuel utilisateur

Reference Manual

00809-0100-4378, Rev CE

February 2014

Rosemount 751 Field Signal Indicator

Reference Manual

00809-0100-4378, Rev CE

Title Page

February 2014

NOTICE

Read this manual before working with the product. For personal and system safety, and for

optimum product performance, make sure you thoroughly understand the contents before

installing, using, or maintaining this product.

Within the United States, Rosemount Inc. has two toll-free assistance numbers:

Customer Central

Technical support, quoting, and order-related questions.

1-800-999-9307 (7:00 am to 7:00 pm CST)

North American Response Center

Equipment service needs.

1-800-654-7768 (24 hours—includes Canada)

Outside of the United States, contact your local Emerson Process Management

representative.

The products described in this document are NOT designed for nuclear-qualified

applications. Using non-nuclear qualified products in applications that require

nuclear-qualified hardware or products may cause inaccurate readings.

For information on Rosemount nuclear-qualified products, contact your local Emerson

Process Management Sales Representative.

Rosemount 751 Field Signal Indicator

Reference Manual

00809-0100-4378, Rev CE

Table of Contents

February 2014

Table of Contents

1Section 1: Introduction

1.1 LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2 Analog meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.3 Service support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.4 Product recycling/disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2Section 2: Installation

2.1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.2 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.3 LCD display configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.3.1 Remove the cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.3.2 Position the decimal point and select the meter function . . . . . . . . . . . . .11

2.3.3 Store the information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

2.3.4 Set the display equivalent to a 4 mA signal . . . . . . . . . . . . . . . . . . . . . . . . . .12

2.3.5 Set the display equivalent to a 20 mA signal . . . . . . . . . . . . . . . . . . . . . . . . .12

2.3.6 Replace the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

AAppendix A: Reference data

A.1 Housing specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

A.1.1 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

A.2 LCD display specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

A.2.1 Functional specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

A.2.2 Performance specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

A.2.3 Physical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

A.3 Analog meter specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

A.3.1 Functional specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

A.3.2 Performance specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

A.3.3 Physical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

A.4 Dimensional drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

A.5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

BAppendix B: Product Certifications

B.1 European directive information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

B.2 Ordinary location certification for FM approvals . . . . . . . . . . . . . . . . . . . . . . . . . . .21

B.2.1 North America. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

B.2.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Europe22

B.2.3 International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

CAppendix C: Approval drawings

C.1 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Reference Manual

00809-0100-4378, Rev CE

Section 1: Introduction

February 2014

Introduction

Section 1 Introduction

LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3

Analog meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4

Service support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

Product recycling/disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

The Rosemount 751 Field Signal Indicators provide a means of displaying important process

variables. These devices operate with any two-wire transmitter that measures input variables

such as pressure, flow, liquid level, or temperature. Rosemount indicators are ideal for

installations where an integral meter would be difficult to view.

Rosemount 751 Indicators are designed for use in industrial environments where all-weather

performance is necessary. These units are vibration- and corrosion-resistant, and explo-

sion-proof or intrinsically safe. An LCD display or analog meter may be ordered to meet specific

application requirements.

1.1 LCD display

The LCD display requires an analog 4–20 mA dc output from a two-wire transmitter. It may be

configured from a 4 mA point of –999 to 1000 and a 20 mA point of -999 to 9999. The sum of

the 4 mA point and the span must not exceed 9999. The decimal point can be placed in any of

three positions (X.X.X.X) or not used. Calibration adjustments are made using noninteractive

zero and span buttons. The scaled meter may be labelled with the appropriate engineering

units. A twenty-segment bar graph, on the bottom of the meter faceplate, represents the 4–20

mA signal directly.

The large 21/4-inch meter face has 1/2-inch-high characters for easy readability as shown in

Figure 1-1. The 4 and 20 mA points may be changed by pressing the buttons on the meter

faceplate. The meter can be rotated in 90-degree increments within the enclosure for

convenient viewing.

Figure 1-1. LCD display

LCD display

Reference Manual

00809-0100-4378, Rev CE

Section 1: Introduction

February 2014

Introduction

1.2 Analog meter

The analog meter requires an analog 4–20 mA dc, 10–50 mA dc, or 40–200 mV dc transmitter

output from a two-wire transmitter. Several meter calibration options are available to suit the

requirements of a particular application. Linear 0 to 100 percent meter scaling is adequate for

the majority of applications. A logarithmic 0 to 100 percent scale is available for use with flow

transmitters. As an option, the user can specify special meter scaling for direct readout in psi,

gph, °F, °C, or other convenient engineering units.

The large 21/4-inch diameter meter face has a two-inch long scale for easy readability as shown in

Figure 1-2. A meter-zero adjustment is located on the meter faceplate. The meter can be

rotated in 90° increments within the enclosure for convenient viewing.

Figure 1-2. Analog Meter

Analog Meter Face

PERCENT

020 40 60 80 100

Reference Manual

00809-0100-4378, Rev CE

Section 1: Introduction

February 2014

Introduction

1.3 Service support

To expedite the return process outside of the United States, contact the nearest Emerson

Process Management representative.

Within the United States, call the Emerson Process Management Instrument and Valves

Response Center using the 1-800-654-RSMT (7768) toll-free number. This center, available 24

hours a day, will assist you with any needed information or materials.

The center will ask for product model and serial numbers, and will provide a Return Material

Authorization (RMA) number. The center will also ask for the process material to which the

product was last exposed.

Emerson Process Management Instrument and Valves Response Center representatives will

explain the additional information and procedures necessary to return goods exposed to

hazardous substances.

1.4 Product recycling/disposal

Recycling of equipment and packaging should be taken into consideration and disposed of in

accordance with local and national legislation/regulations.

Individuals who handle products exposed to a hazardous substance can avoid injury if they

are informed of and understand the hazard. If the product being returned was exposed to a

hazardous substance as defined by OSHA, a copy of the required Material Safety Data Sheet

(MSDS) for each hazardous substance identified must be included with the returned goods.

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