Omega FMG90 User Manual

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User’sGuide

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FMG90 Series

Electromagnetic Flow Meter

Omega FMG90 User Manual

Table of contents

page

1

About this operating manual....................................................................................

4

2

Device description...................................................................................................

5

 

2.1

Intended use....................................................................................................

6

 

2.1

Exclusion of liability .........................................................................................

6

3

Safety instructions...................................................................................................

7

4

Construction and function .......................................................................................

8

5

Installation...............................................................................................................

8

5.1Installation instructions ...........................................................................................

9

 

5.2

Assembly.......................................................................................................

10

6

Electrical connection .............................................................................................

11

7

Commissioning and measuring operation .............................................................

12

7.1

Commissioning ..............................................................................................

12

7.2

Measuring operation......................................................................................

12

8

Maintenance..........................................................................................................

12

9

Disassembly and disposal.....................................................................................

13

10Technical data.......................................................................................................

14

 

10.1 Materials table ..............................................................................................

15

 

10.2 Pressure drop...............................................................................................

15

 

10.3 Dimensions...................................................................................................

16

Copyright notice:

The reproduction, distribution and utilization of this operating manual as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.

1About this operating manual

The operating manual is aimed at specialists and semi-skilled personnel.

Before each step, read through the relevant advice carefully and keep to the specified order.

Thoroughly read and understand the information in the section (Safety Instructions "3").

If you have any problems or questions, please contact:

One Omega Dr. Box 4047 Stamford, CT 06907-0047 Tel: (203) 359-1660 e-mail: info@omega.com

Hazard signs and other symbols used:

WARNING! / CAUTION! Risk of injury!

This sign indicates dangers that cause personal injuries that can lead to health defects or cause considerable damage to property.

CAUTION! Electric current!

This sign indicates dangers which could arise from handling of electric current.

CAUTION! Material damage!

This sign indicates actions which could lead to possible damage to material or environmental damage.

ADHERE TO OPERATING MANUAL!

NO DOMESTIC WASTE!

The device must not be disposed of together with domestic waste.

NOTICE!

This symbol indicates important notices, tips or information.

Pay attention to and comply with information that is marked with this symbol.

ªFollow the specified instructions and steps. Adhere to the given order.

Check the specified points or notices.

JReference to another section, document or source.

Item.

2 Device description

The FMG90 series from Omega, is a non-contact flow sensor. The measurement is performed using magnetic induction and works without any moving parts.

The FMG90 is used for measuring or metering water and aqueous solutions. The compact design and independence from the intake and discharge sections allows the FMG90 to be used under a variety of conditions.

Components:

cSensor housing:

The sensor housing consists of plastic and has the IP65 degree of protection.

dElectrical connection:

The electrical connection is made via 4-pin plug M12x1.

e Operation / flow indicator LED.

f Type plate with flow direction (marking)

gProcess connection:

The process connections are available in different sizes.

2.1Intended use

The magnetic inductive flow sensor FMG90 must only be used for measuring and metering liquids with a minimum conductivity of 20 μS/cm.

WARNING! No safety component!

The magnetic inductive flow sensor of the series FMG90 are not safety components in accordance with Directive 2006-42-EC (Machine Directive).

ª Never use the FMG90 as a safety component.

The operational safety of the device supplied is only guaranteed within its intended use. The specified limits (see Technical Data "10") may under no circumstances be exceeded.

Before installing the device, check that the wetted materials of the device are compatible with the media being used (see Materials Table "10.1").

Measuring tube empty (or partially filled). / Conductivity too low.

The green LED may blink irregularly if the measuring tube of the FMG90 is empty or

partially filled or if the conductivity of the fluid being used is too low. Random pulses will be present at the output, but they do not represent an actual flow.

ªEnsure that the measuring tube of the FMG90 is always completely filled (see

Installation Instructions "5.1").

ªEnsure that the conductivity of the fluid is at least 20 μS/cm.

2.1Exclusion of liability

We accept no liability for any damage or malfunctions resulting from incorrect installation, inappropriate use of the device or failure to follow the instructions in this operating manual.

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