Emerson Rosemount 6888A Bedienungsanleitung

Quick Start Guide

00825-0100-4890, Rev AB

October 2019

Rosemount™ 6888A

O2 Combustion Flue Gas Transmitter

Essential instructions

Read this page before proceeding!

Emerson designs, manufactures, and tests its products to meet many national and international

standards. Because these instruments are sophisticated technical products, you must properly install,

use, and maintain them to ensure they continue to operate within their normal specifications. The

following instructions must be adhered to and integrated into your safety program when installing,

using, and maintaining Emerson products. Failure to follow the proper instructions may cause any one

of the following situations to occur: loss of life, personal injury, property damage, damage to this

instrument, and warranty invalidation.

•Read all instructions prior to installing, operating, and servicing the product.

•If you do not understand any of the instructions, contact your Emerson representative for

clarification.

•Follow all warnings, cautions, and instructions marked on and supplied with the product.

•Inform and educate your personnel in the proper installation, operation, and maintenance of the

product.

•Install equipment as specified in the installation instructions of the appropriate Reference Manual

and per applicable local and national codes. Connect all products to the proper electrical and

pressure sources.

•To ensure proper performance, use qualified personnel to install, operate, update, program, and

maintain the product.

•Use only factory documented components for repair. Tampering or unauthorized substitution of

parts can affect product performance and cause unsafe operation of your process.

NOTICE

The Field Communicator must be upgraded to System Software 2.0 with graphic license for operation

with the Rosemount™ 6888A Transmitter. The AMS software must be upgraded to AMS 8.0 or above.

Contact Emerson's Global Service Center (GSC) at +1-800-833-8314 to upgrade the Field

Communicator software to System Software 2.0 with graphic license.

Symbols

Earth (ground) terminal

Protective conductor terminal

Risk of electrical shock

Refer to reference manual.

The following definitions apply to Warnings, Cautions, and Notes found throughout this publication.

WARNING

Highlights an operation or maintenance procedure, practice, condition, statement, etc., which if not

strictly observed, could result in injury, death, or long-term health hazards of personnel.

Quick Start Guide October 2019

2 Emerson.com/Rosemount

CAUTION

Highlights an operation or maintenance procedure, practice, condition, statement, etc., which if not

strictly observed, could result in damage to or destruction of equipment or loss of effectiveness.

Note

Highlights an essential operating procedure, condition, or statement.

WARNING

Explosions

Do not open when an explosive atmosphere may be present.

WARNING

Electrical shock

Do not open while energized.

CAUTION

Equipment damage

For the standard housing probe and direct replacement probe, only use supply cables & certified

cable glands rated > 221 °F (105 °C).

For the autocal housing, only use supply cables and certified cable glands rated > 185 °F (85 °C).

WARNING

Physical access

Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end

users’ equipment. This could be intentional or unintentional and needs to be protected against.

Physical security is an important part of any security program and fundamental to protecting your

system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for

all systems used within the facility.

Contents

Install........................................................................................................................................... 5

Configuration, startup, and operation........................................................................................ 27

Product certifications................................................................................................................. 33

Declaration of Conformity..........................................................................................................36

China RoHS Table....................................................................................................................... 38

October 2019 Quick Start Guide

Quick Start Guide 3

Quick Start Guide October 2019

4 Emerson.com/Rosemount

1 Install

WARNING

Failure to follow safety instructions could result in serious injury or death.

Before installing this equipment, read the Essential Instructions at the front

of this document.

WARNING

Electrical shock

Failure to install covers and ground leads could result in serious injury or

death.

Install all protective covers and ground leads after installation.

WARNING

Hazardous areas

The transmitter can be installed in general purpose areas only.

Do not install the transmitter in hazardous areas or in the vicinity of

flammable liquids.

CAUTION

Equipment damage

If external loop power is used, the power supply must be a safety extra low

voltage (SELV) type.

October 2019 Quick Start Guide

Quick Start Guide 5

1.1 Install probe

Most combustion processes run only slightly negative or positive in pressure,

so that the probe flange is for mechanical mounting only. The probe is not

rated for high pressures. If this is a new installation, a weld plate for welding

to the flue gas duct can be supplied.

WARNING

Electrical shock

Failure to install covers and ground leads could result in serious injury or

death.

Install all protective covers and ground leads after installation.

WARNING

Hazardous areas

The transmitter can be installed in general purpose areas only.

Do not install the transmitter in hazardous areas or in the vicinity of

flammable liquids.

Procedure

1. Ensure all components are available to install the probe.

If using the optional ceramic or Hastelloy diffusion element, make

sure to orient the vee deflector correctly.

2. Before inserting the probe, check the direction of gas flow in the

duct. Orient the vee deflector so the apex points upstream toward

the flow.

See Figure 1-1.

Quick Start Guide October 2019

6 Emerson.com/Rosemount

Figure 1-1: Orienting the Optional Vee Deflector

A. Gas flow direction

B. Vee deflector

C. Diffusion element

D. Setscrew

E. Vee deflector

F. Filter

G. Apex

3. If using the standard square weld plate or an optional flange

mounting plate, weld or bolt the plate onto the duct.

The through hole diameter in the stack or duct wall and refractory

material must be at least 2½-in. (63.5 mm).

October 2019 Quick Start Guide

Quick Start Guide 7

Figure 1-2: Rosemount 6888A Probe with Standard

Terminations/Electronic Housing

Note

All dimensions are in inches with millimeters in parentheses.

Figure 1-3: Rosemount 6888A Integral Autocal Housing

A. Dimension (see Table 1-1)

B. Dimension (see Table 1-1)

C. Hastelloy diffuser

D. Ceramic diffuser

Note

All dimensions are in inches with millimeters in parentheses.

Quick Start Guide October 2019

8 Emerson.com/Rosemount

Figure 1-4: Rosemount 6888A Integral Autocal Housing Close-up

A. Dimension (see Table 1-1)

B. Dimension (see Table 1-1)

C. Calibration gas ¼ tube fittings 5.0 SCFH (2.4 L/min) 20 psi (138

kPa)

D. #10 socket head cap screw (external ground)

E. ½ NPT conduit connection (power, signal)

F. Reference gas ¼ tube fitting 2.0 SCFH (1.0 L/min) 20 psi (138

kPa)

G. Reference air vents

Note

All dimensions are in inches with millimeters in parentheses.

Table 1-1: Removal/Installation

Probe length(1) Dim A insertion

depth

Dim B removal

envelope standard

housing

Dim B removal

envelope accessory

housing

18 in. (457 mm)

probe

16.1 in. (409 mm) 15.77 in. (401 mm) 19.26 in. (490 mm)

3 ft. (0.91 m) probe 33.52 in. (826 mm) 46.6 in. (1182 mm) 50.1 in. (1271 mm)

6 ft. (1.83 m) probe 68.52 in. (1740 mm) 82.6 in. (2097 mm) 86.1 in. (2186 mm)

October 2019 Quick Start Guide

Quick Start Guide 9

Table 1-1: Removal/Installation (continued)

Probe length(1) Dim A insertion

depth

Dim B removal

envelope standard

housing

Dim B removal

envelope accessory

housing

9 ft. (2.74 m) probe 104.52 in. (2655 mm) 118.6 in. (3011 mm) 122.1 in. (3100 mm)

12 ft. (3.66 m) probe 140.52 in. (3569 mm) 154.6 in. (3926 mm) 158.1 in. (4015 mm)

(1) Add 3.8 in. (96 mm) to Dim A and Dim B for probe with ceramic or Hastelloy diffuser.

The through hole diameter in the stack or duct wall and refractory

material must be at least 63.5 mm (2½ in.)

4. Insert probe through the opening in the mounting flange and bolt

the unit to the flange.

Quick Start Guide October 2019

10 Emerson.com/Rosemount

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