Omega PSW20 user manual

Device: Omega PSW20

Category: Switch

Manufacturer: Omega

Size: 0.34 MB

Added : 6/25/2013

Number of pages: 4

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Omega PSW20 User manual - Online PDF

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Summaries

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Abstracts of contents

Summary of the content on the page No. 1

PSW20 Series
Pressure, vacuum or differential pressure switches
INSTRUCTION
M4067-0504
SHEET
Shop online at: omega.com e-mail: info@omega.com
For latest product manuals: omegamanual.info
Installation Instructions for OMEGA PSW20 Series: Pressure, Vacuum and Differential
Pressure Switches.
General
The PSW20 series is single pole switch that can be used as a pressure or vacuum switch (from 0.40 in W. C. to
20 inches W. C.) or as a pressure differential switch. The switch can respond to ra

Summary of the content on the page No. 2

Standard Repeat Part Electrical rating Accuracy Contact Number Resistance Max. Min Constant (ohms) Resistive Resistive Temperature PSW20A 750ma 5 ma +/- 4% 0.04 250VAC 3 VDC PSW20B 1 amp 5 ma +/- 3% 0.02 250 3 VDC VAC Body Acetal Diaphragm EPDM is standard; Nitrile available. NOTE: EPDM should not be used in petroleum applications Contacts Gold plated silver Springs Plated phosphor bronze Terminals Plated copper or brass Adjusting screw Stainless steel or zinc plated SS Weight 9 grams (0.3oz)

Summary of the content on the page No. 3

Media in Contact with Electrical Contacts Note that the pressure media entering through Port A is in direct contact with the electrical contacts in the switch, whereas the pressure media entering through Port B is separated from the electrical contacts by the diaphragm. Note: The EPDM diaphragm should not be used with petroleum products. Specify Nitrile for these applications.

Summary of the content on the page No. 4

Servicing Europe: Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands ® OMEGAnet Online Service Internet e-mail Tel: +31 (0)20 3472121 FAX: +31 (0)20 6434643 www.omega.com info@omega.com Toll Free in Benelux: 0800 0993344 e-mail: sales@omegaeng.nl Servicing North America: Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic USA: One Omega Drive, Box 4047 Tel: +420 (0)59 6311899 FAX: +420 (0)59 6311114 ISO 9001 Certified Stamford CT 06907-0047 Toll Free: 0800-1-66342 e-mail: info

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