Omega Engineering PSW490B User Manual Download Page 2

Servicing North America:

USA:

One Omega Drive, P.O. Box 4047

ISO 9001 Certified

Stamford CT 06907-0047
TEL: (203) 359-1660

FAX: (203) 359-7700

e-mail: [email protected]

Canada:

976 Bergar
Laval (Quebec) H7L 5A1
TEL: (514) 856-6928

FAX: (514) 856-6886

e-mail: [email protected]

For immediate technical or application assistance:

USA 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:

Tel: (001) 800-826-6342

FAX: (001) 203-359-7807 

En Espan˜ol: (001) 203-359-7803

e-mail: [email protected]

[email protected]

Servicing Europe:

Benelux:

Postbus 8034, 1180 LA Amstelveen, The Netherlands
TEL: +31 (0)20 6418405

FAX: +31 (0)20 6434643

Toll Free in Benelux: 0800 0993344
e-mail: [email protected]

Czech Republic:

Rudé armády 1868, 733 01 Karviná
TEL: +420 (0)69 6311899

FAX: +420 (0)69 6311114

Toll Free in Czech Rep.: 0800-1-66342

e-mail: [email protected]

France:

9, rue Denis Papin, 78190 Trappes
TEL: +33 (0)130 621400

FAX: +33 (0)130 699120

Toll Free in France: 0800-4-06342
e-mail: [email protected]

Germany/Austria:

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
TEL: +49 (0)7056 3017

FAX: +49 (0)7056 8540

Toll Free in Germany: 0800 TC-OMEGA

SM

e-mail: [email protected]

United Kingdom:

One Omega Drive, River Bend Technology Centre

ISO 9002 Certified

Northbank, Irlam, Manchester
M44 5EX, United Kingdom 
TEL: +44 (0)161 777 6611

FAX: +44 (0)161 777 6622

Toll Free in the United Kingdom: 0800 488 488
e-mail: [email protected]

omega.com

TM

®

OMEGAnet

®

On-Line Service 

Internet e-mail

www.omega.com [email protected]

It is the policy of OMEGA 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 Engineering, Inc. 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, patient-connected applications.

Summary of Contents for PSW490B

Page 1: ...www omega com e mail info omega com omega comTM User sGuide DSW490B and DSW790B Pressure Control Switches ...

Page 2: ...es TEL 33 0 130 621400 FAX 33 0 130 699120 Toll Free in France 0800 4 06342 e mail france omega com Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 3017 FAX 49 0 7056 8540 Toll Free in Germany 0800 TC OMEGASM e mail germany omega com United Kingdom One Omega Drive River Bend Technology Centre ISO 9002 Certified Northbank Irlam Manchester M44 5EX United Kingdom TEL 44 0...

Page 3: ...It is recommended that Teflon tape or other sealant be used on conduit bushing or plug threads to ensure integrity of the enclosure INSTALLATION AND MAINTENANCE OF THE DSW490B AND DSW490B SERIES OMEGA SNAP ACTION SWITCHES FOR DIFFERENTIAL PRESSURE CONTROL DSW490 series standard one 3 4 NPT conduit hole right side DSW790 series standard two 3 4 NPT conduit holes with one permanent plug NEMA 7 9 enc...

Page 4: ...e low side pressure at 300 psi Raise the high side pressure to 450 psi to obtain 150 psi differential Turn the adjustment nut until the switch changes mode at 150 psi differential When the setpoint has been achieved raise and lower the high side pressure to ensure that the differential setpoint is correct After installation of the control replace cover to insure electrical safety and to protect in...

Page 5: ...EMALE 3 4 NPT 2 PLACES B A 1 4 NPT FEMALE C A U T I O N T O PREVENT IGNITION OF H A ZA R D O U S ATMOSPHERE TURN OFF P O W E R B E FORE OPENING CLOS E T I G H T L Y BEFORE OPERATIN G C A U T I O N C O U P E R LE COU R AN T A V A N T D O U V R I R B I E N F E R M E R AV A N T D E M E T T R E E N S E R V IC E B A C H D E F G 0 28 THRU 3 PLACES 3 4 NPT 2 PLACES 1 4 NPT LOW PRESSURE INLET 1 4 NPT HIGH...

Page 6: ......

Page 7: ...hall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any...

Page 8: ...icators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conductivity Equipment DATA ACQUISITION Data Acquisition Engineering Software Communications Based Acquisition Systems Plug in Cards for Apple IBM Compatibles Datalogging Systems Recorders Printers Plott...

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