Omega FTB500 User Manual

FTB500 Series

Low Flowrate Meters

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified

Stamford, CT 06907-0047
Toll-Free: 1-800-826-6342 Tel: [phone]
FAX: [phone] e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec), H7L 5A1 Canada
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

®

Engineering Service: 1-800-872-9436/1-800-USA-WHEN

®

Mexico En Español: 001 [phone] FAX: [phone]
Latin America [e-mail] e-mail: [e-mail]

Servicing Europe:

Benelux: Managed by the United Kingdom Office

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Czech Republic: Frystatska 184

733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

France: Managed by the United Kingdom Office

Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26

D-75392 Deckenpfronn, Germany
Toll-Free: 0800 6397678 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified

One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

CONTENTS

1. Introduction ....................................................................................2

2. Operation........................................................................................ 3

2.1 Principle.................................................................................3

2.2 Precautions.............................................................................3

3. Installation...................................................................................... 4

3.1 General Piping .......................................................................4

3.2 Strainers/Filters......................................................................5

3.3 Installation Kits......................................................................5

4. Maintenance ...................................................................................6

4.1 General...................................................................................6

4.2 Disassembly...........................................................................6

4.3 Inspection & Repair...............................................................6

4.4 Assembly ...............................................................................8

4.5 Pickup Coil Testing ...............................................................8

4.6 Trouble Shooting .................................................................10

4.7 Spare Parts...........................................................................11

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1 Introduction

We are proud that you have selected an Omega Low Flowrate
Meter, the finest precision flow transducer on the market.

The Omega FTB500 Series of Low Flowrate Meters are designed
to meet the need for a high quality low flow measurement device
for service in low to moderate viscosity clean liquids and for gas
applications.

The information in this manual is provided to assist in the proper
installation, use, and maintenance of your instrument.

Please take a few minutes to read through this manual before
installing and operating your meter. If you have any problems
with the meter, refer to the maintenance and troubleshooting
sections of this manual.

If you need further assistance, contact your local Omega
Representative or contact the Omega customer service department
by telephone, fax, or email for advice.

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2 Operation

2.1 Principle

The Omega FTB500 Series of Low Flowrate Meters has been
developed to meet the need for a low flow measurement device
for use with low to moderate viscosity clean liquids and for gas
measurement applications.

The Omega FTB500 Series of Low Flowrate Meters is a family of
low flow rate measurement devices whose design is based on a
Pelton Wheel-like rotor. The measured fluid is directed
tangentially through a velocity nozzle against the rotor causing it
to spin. The pickup coil senses the spinning motion of the rotor
through the housing and converts it into a pulsing electrical
signal. Summation of the pulsing electrical signal relates directly
to the total flow, while the frequency is related to the flow rate.

2.2 Precautions

 Do not drop the meter. Dropping the meter may result in

damage to the meter housing and/or internals.

 Do not operate the meter at flowrates greater than the

maximum flowrate marked on the meter. Operating at
flowrates greater than the maximum flowrate may over­spin the meter. Over-spinning may result in damage to
the meter.

CAUTION: Avoid over-spinning the meter. Over-spinning the meter may

result in damage to the meter internals and lead to meter
failure.

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