Omega Products FMG81 Installation Manual

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User’s Guide

FMG80 SERIES

Low-Flow Magmeter

Servicing North America:

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

ISO 9001 Certified

Stamford, CT 06907-0047
TEL: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1, Canada
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

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: En Espan˜ol: [phone]-7803 e-mail: [e-mail]

FAX: [phone] [e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

TEL: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

TEL: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

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

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

TEL: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified

Northbank, Irlam, Manchester
M44 5BD United Kingdom
TEL: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com i n f o @ o m e g a . c o m

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.

GENERAL INFORMATION, FEATURES and SPECIFICATIONS

The FMG80 magmeter is designed for low-ow chemical in­jection or difcult-to-meter applications with pulsating meter­ing pumps in 3/4” to 1/4” pipe/tube. The housing is made of
sturdy splashproof HDPE plastic.

With no moving parts, the FMG80 can handle uids contain­ing particulate matter without clogging or jamming, keeping
maintenance at a minimum. With no metallic parts (100%
PVDF body and PVDF carbon ber-lled electrodes), the me­ter is corrosion-resistant and compatible with a wide range of
chemicals. Accuracy is maintained with conductive uids (>20
microSiemens) of varying viscosities and densities.

FEATURES

8-pin circular bulkhead connector

Internals made of chemical and corrosion-resistant PVDF

Sturdy HDPE housing

Mounting bracket

The FMG80 meter is compact enough to t most pump/injec­tion systems. With zero straight pipe required after an elbow, it
can be easily mounted in tight spaces. The mounting bracket
adds stability.

The FMG80 meter has optocoupled current sinking or current
sourcing pulse output that can be connected to many Omega
rate/total displays or batch processors, as well as a 4-20 mA
loop for powering analog devices. Outputs and power are pro­vided through a cable with 8-pin female circular connector.

Threaded NPT adapters

in PVDF

SPECIFICATIONS*

Pipe Size

Fittings

Materials Body

Electrodes

Ground

Housing

Fittings (FlareTek)

Adapters (for NPT)

O-Rings (for NPT)

Temperature Ambient
Fluid

Pressure

Flow Range FMG83, FMG84
FMG81, FMG82

Accuracy FMG83, FMG84
FMG81, FMG82

Output Signal

FMG83, FMG84
FMG81, FMG82

Power

Conductivity

Empty Pipe Detection

Environmental

*Specifications subject to change • Please consult our website for current data (www.omega.com).

3/4”, 1/2”, 3/8”, 1/4”

NPT threaded adapters

PVDF

PVDF carbon ber-lled

PVDF carbon ber-lled

HDPE with glass ber

PVDF

PVDF

EPDM or optional FKM

0˚ to 130˚ F (-18˚ to 54˚ C)
32˚ to 200˚ F (0˚ to 93˚ C)

150 psi

20 GPM Max. (0.2 GPM cut off)
3 GPM Max. (0.03 GPM cut off)

+/- 1%, +/- 0.005 GPM of reading across rated range
+/- 1%, +/- 0.002 GPM of reading across rated range

Optocoupled current sinking or current sourcing pulse output: 30 Vdc, 5 mA max
4-20 mA current loop: 7 Vdc plus load voltage drop min; 50 Vdc max

FMG83, FMG84: 500 pulses/liter (1892 pulses/gallon),
FMG81, FMG82: 1,000 pulses/liter (3785 pulses/gallon).

10-15 Vdc, 150 mA (linear power supply recommended)

>20 microSiemens

Hardware/software, conductivity-based

NEMA 4X standard; IP 66 Splashproof standard