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ABB Totalflow G5 Series - User Manual

ABB Totalflow G5 Series
20 pages
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Easy parts replacement in the
most accurate and reliable single
run gas flow computer
Introduction
This guide is designed for typical installations only. Maintenance must be performed
by personnel knowledgeable of the ABB Totalflow
®
µFLO
G5
flow computer, the
integral multivariable transducer (IMV), and the theory of natural gas electronic flow
measurement. Maintenance personnel must also be knowledgeable of local and
national codes as they apply to hazardous areas, communication wiring, and
electrical wiring.
Read and consider the contents of this guide prior to beginning installation of the
equipment. If for some reason there are questions that are not answered in this
guide, or other documentation listed in the following section, call the local ABB
representative, or call the main office number listed on the back page of this guide.
CAUTION – Equipment damage. The µFLO
G5
flow computer operating
temperature range differs from the µFLO
G4
. The µFLO
G5
is rated for
ambient temperatures between -40 °F and +158 °F (-40 °C and +70 °C).
Purpose
This guide provides easy-to-follow instructions for replacement of all available spare
part components.
Application guide
G5 flow computers
µFLO
G5
(microFLO
G5
)
Component replacement instructions
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ABB Totalflow G5 Series Specifications

General IconGeneral
ManufacturerABB
EnclosureNEMA 4X, IP66
Communication ProtocolsModbus, Ethernet
Operating Temperature-40°C to +70°C
DisplayLCD
CertificationsATEX, IECEx

Summary

Introduction to Component Replacement

Equipment Damage Warning

Warns about temperature range differences between µFLOG5 and µFLOG4.

Safety Warnings and Symbols

Safety Conventions Explained

Defines DANGER, WARNING, and CAUTION symbols and their implications.

Potential Safety Hazards Identified

Highlights risks like natural gas presence and power requirements.

Core Replacement Procedures

Disconnecting Power Safely

Steps to safely disconnect power from the µFLOG5 electronic board.

Restoring Power

Replacing the IO Expansion Board

Reinstalling the IO Expansion Board

Replacing the FLOG5 Electronic Board

Reinstalling the Electronic Board

Replacing the FLOG5 IMV Assembly

Reinstalling the IMV Assembly

Replacing the FLOG5 Transducer Assembly

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