Emerson Rosemount 6888C Bedienungsanleitung

Quick Start Guide

00825-0100-4891, Rev AB

October 2019

Rosemount™ 6888C In-Situ Combustion

Oxygen Analyzer

For use in Hazardous Areas

NOTICE

This guide provides basic guidelines for Rosemount 6888 In-Situ Oxygen Analyzers. It does not provide

instructions for configuration, diagnostics, maintenance, service, troubleshooting, or flame-proof

installations. Refer to the Rosemount 6888C Manual for more instruction.

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 instruction 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 and unauthorized substitution

and 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™ 6888C O2 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.

Quick Start Guide October 2019

2 Emerson.com/Rosemount

The following definitions apply to Warnings, Cautions, and Notices 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.

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.

NOTICE

Highlights an essential operating procedure, condition, or statement.

WARNING

EXPLOSION

Do not open when an explosive atmosphere may be present.

WARNING

ELECTRIC 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 > 105 °C (221 °F).

CAUTION

EQUIPMENT DAMAGE

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

Contents

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

Configuration, startup, and operation........................................................................................ 26

Rosemount™ 6888 product certifications................................................................................... 31

Declaration of Conformity..........................................................................................................35

October 2019 Quick Start Guide

Quick Start Guide 3

China RoHS Table....................................................................................................................... 37

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.

1.1 Mechanical installation

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.

1.1.1 Probe installation

Complete the following steps to install the probe in the duct.

Prerequisites

Ensure all components are available to install the probe.

Procedure

1. If using the optional ceramic diffusion element, the vee-deflector

must be correctly oriented. Before inserting the Rosemount 6888C

probe, check the direction of gas flow in the duct. Orient the vee-

deflector so the apex points upstream towards the flow.

October 2019 Quick Start Guide

Quick Start Guide 5

2. 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).

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

the unit to the flange.

Figure 1-1: Rosemount™ 6888C Probe with Standard

Terminations/Electronics Housing

Note

All dimensions are in inches with millimeters in parentheses.

Figure 1-2: 6888C Probe with Integral Autocal Housing

Table 1-1: Removal/Installation

Probe length DIM A insertion

depth

DIM B removal

envelope

standard

housing

DIM removal

envelope

accessory

housing

18 (457) probe 16.10 (409) 15.77 (401) 19.26 (490)

36 (910) probe 32.52 (826) 46.6 (1182) 50.1 (1271)

Quick Start Guide October 2019

6 Emerson.com/Rosemount

Table 1-1: Removal/Installation (continued)

Probe length DIM A insertion

depth

DIM B removal

envelope

standard

housing

DIM removal

envelope

accessory

housing

6 ft (1830) probe 68.52 (1740) 82.6 (2097) 86.1 (2186)

Figure 1-3: Probe Installation

Table 1-2: Mounting Flange

ANSI DIN

Flange diameter 8.25 (210)

Hold diameter .75 (20)

(4) holes eq sp on BC 6.00 (152) 6.70 (170)

October 2019 Quick Start Guide

Quick Start Guide 7

Table 1-3: Installation weld plate outline

ANSI DIN

A 7.75 (197) 8.5 (215)

B thread .625 (11) (M-16x2)

C dia 6.00 (152) 6.70 (170)

Figure 1-4: Drip Loop and Insulation Removal

A. Line voltage

B. Logic I/O, 4-20 mA signal

C. Stack or duct metal wall

D. Adapter plate

E. Insulation

F. Note

Replace insulation after installing Rosemount 6888C.

Note

Standard housing probe shown. Accessory housing is similar. Probe

may be vertical or horizontal.

Quick Start Guide October 2019

8 Emerson.com/Rosemount

1.2 Electrical installation

All wiring must conform to local and national codes. Multiple wiring

diagrams are shown in this section. Always refer to the diagrams that apply

to your transmitter configuration and disregard all other wiring diagrams.

WARNING

Electrical shock

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

death.

Disconnect and lock out power before connecting the power supply.

Install all protective covers and ground leads after installation.

To meet the safety requirements of IEC 61010-1 (EC requirement) and

ensure safe operation of this equipment, connect the main electrical

power supply through a circuit breaker (min 10 A) which will disconnect

all current-carrying conductors during a fault situation.

This circuit breaker should also include a mechanically operated isolating

switch. If it does not, keep another external means of disconnecting the

power supply from the equipment located close by. Circuit breaks or

switches must complay with a recognized standard such as IEC 947.

To maintain proper earth grounding, ensure a positive connection exists

between the transmitter housing and earth. The connecting ground wire

must be 14 AWG minimum.

Line voltage, signal, and relay wiring should be rated for at least 221 °F

(105 °C).

1.2.1 Wire Rosemount™ 6888 Transmitter Probe only (no Rosemount 6888

Xi Electronics)

The Rosemount 6888 Transmitter Probe has built-in electronics that control

the heater temperature and amplify the raw O2 millivolt signal to a linear

4-20 mA.

You can run the 4-20 mA signal lines can be run directly to the control room

and also power the transmitter electronics. There is no O2 display or keypad

on the probe, so you must set up the transmitter through HART®

communications via a Field Communicator or Asset Management Solutions

(AMS).

Procedure

1. Remove the cover from the probe.

2. Connect the line (L1 wire) to the L1 terminal, the neutral (L2 wire) to

the L2/N terminal, and the ground wire to the ground lug.

October 2019 Quick Start Guide

Quick Start Guide 9

The Rosemount 6888C accepts line voltage at 120/240 Vac ±10%,

50/60 Hz. No setup is required.

3. Connect the 4-20 mA signal wires at the transmitter. Use a shielded

twisted wire pair. Do not allow bare shield wires to contact the circuit

boards. Insulate the shield wires prior to termination.

The transmitter electronics are loop-powered (i.e., the 4-20 mA

signal wires supply 24 Vdc from the DCS or an external power

supply).

Figure 1-5: Rosemount 6888C Standard Probe Housing

4. Terminate the shield only at the transmitter electronics housing

unless using a Rosemount 6888 Xi. When using the Rosemount 6888

Xi Advanced Electronics, terminate the shield at both ends.

5. Reinstall cover on transmitter.

1.2.2 Wire standard housing transmitter probe with Rosemount™ 6888 Xi

Electronics

The Rosemount 6888 Xi Electronics serves as an operater interface unit with

a back-lit display and keypad. It is capable of two channels, serving up to two

Rosemount 6888 probes.

Procedure

1. Remove cover screws from the front cover of the Rosemount 6888

Xi. Swing down the front cover of the interface box.

Quick Start Guide October 2019

10 Emerson.com/Rosemount

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