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Summary of Contents for Omega Engineering PSW490B
- Page 1 User’ s Guide omega.com ® www.omega.com e-mail: info@omega.com DSW490B and DSW790B Pressure Control Switches...
- Page 2 omega.com OMEGAnet ® On-Line Service www.omega.com Servicing North America: USA: One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford CT 06907-0047 TEL: (203) 359-1660 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 e-mail: info@omega.ca 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...
- Page 3 National Electrical Code. DSW490 SERIES SPDT – Wire directly to the switch according to circuit requirements. 2-SPDT – Dual switching elements consist of two SPDT switches mounted together in a bracket.
- 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 reference standard such as a Test Gauge is necessary to observe convenient changes in pressure. A typical calibration procedure would be...
- Page 5 DSW490B 3.25 DSW790B 7.78 5.20 DIMENSIONS (Inches) – ˝H O Differential Ranges STYLE DSW490B 5.69 DSW790B 6.38 5.20 DIFFERENTIAL PRESSURE SWITCH – PSID 3/4 NPT 1/4 NPT Female Pressure 3/4 NPT (2 PLACES) 1/4 NPT FEMALE 3.31 2.75 2.31 1.19 4.38...
- Page 7 MADE IN OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.
- Page 8 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors Infrared Pyrometers PRESSURE, STRAIN AND FORCE Transducers &...
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