Omega Vehicle Security PSW490B manual

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Table of contents for the manual

  • Page 1

    www .omega.com e-mail: info@omega.com omega.com TM ® U ser ’ s Guide DSW490B and DSW790B Pressure Contr ol Switches[...]

  • Page 2

    Servicing Nor th 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: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca For immediate technical or application assistance: USA and Canada: Sales Servic[...]

  • Page 3

    INTRODUCTION The OMEGA differ ential pressure switch is a precision built U.L. appr oved control device which features a mechanical snap action switch. Controllers ar e available for operation on vari- ous pressur e differentials with fixed or variable switching differ entials. The standard electrical switch is SPDT and is available with various el[...]

  • Page 4

    For accurate setpoint calibration, mount the switch on a calibration stand, a pump or catalog Omega DWT 1305 deadweight gauge tester . A suitable refer ence standard such as a T est Gauge is necessary to observe convenient changes in pressur e. A typical calibration procedur e would be as follows: Static W orking Pressure – 300 psi Adjustable Dif[...]

  • Page 5

    DIFFERENTIAL PRESSURE SWITCH – INCHES OF WATER DIFFERENTIAL PRESSURE SWITCH – PSID A Ø 0.28 (3 Holes) D C G E B H 3/4 NPT 1/4 NPT Female 1/4 NPT Female A Ø 0.28 (3 Holes) C 1/4 NPT High Pressure Inlet 1/4 NPT Low Pressure Inlet B D E F H G 3/4 NPT C A U T I O N T O P R E V E N T I G N I T I O N O F H A Z A R D O U S A T M O S P H E R E T U R [...]

  • Page 6

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  • Page 7

    W ARRANTY / DISCLAIMER OME GA ENGINEERING, INC. war rants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purc hase. OM E GA ’ s W ar ranty adds an additional one (1) month grace period to the normal one (1) year pr oduct warranty to cover handling and shipping time. This ensures that OME GA ’[...]

  • Page 8

    XXX0000XX M3420/0599 Where Do I Find Ever ything I Need for Pr ocess Measurement and Control? OM EGA…Of Course! TEMPERA TURE   Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies   Wire: Thermocouple, RTD & Thermistor   Calibrators & Ice Point References   Recorders, Controllers & Pro[...]