Omega Products PSW18H Installation Manual

User’s Guide

www.omega.com

e-mail: [e-mail]

PSW18H SERIES

HYDRAULIC, PISTON-STYLE PRESSURE SWITCH

OMEGAnet®On-Line Service Internet e-mail
www.omega.com [e-mail]

Servicing North America:

USA: 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
TEL: [phone] FAX: [phone]
e-mail: [e-mail]

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

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Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

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TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: [phone]-6342 FAX: [phone]

En Espanol: [phone]-7803 e-mail: [e-mail]

[e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LAAmstelveen, The Netherlands

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

Czech Republic: Rudé armády 1868, 733 01 Karviná

TEL: [phone] FAX: [phone]
Toll Free in Czech Rep.: 0800-1-66342 e-mail: [e-mail]

France: 9, rue Denis Papin, 78190 Trappes

Tel: [phone] FAX: [phone]
Toll Free in France: 0800-4-06342
e-mail: [e-mail]

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

Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800-TC-OMEGA
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre
ISO 9002 Certified Northbank, Irlam, Manchester

M44 5EX, United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in the United Kingdom: 0800 488 488
e-mail: [e-mail]

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGAis constantly pursuing certification of
its products to the European New Approach Directives. OMEGAwill add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct, but OMEGAEngineering, Inc. accepts no liability for any errors it contains, and
reserves the right to alter specifications without notice.
W ARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

PART NUMBER PRESSURE RANGE HYSTERESIS* PORTS

PSI PSI

Lower Range Upper Range Female

PSW18HA 70 – 1015 (5 – 70) 260 (18) 290 (20) 1/4" NPT
PSW18HB 150 – 2320 (10 – 160) 260 (18) 435 (30) 1/4" NPT
PSW18HC 70 – 1015 (5 – 70) 260 (18) 290 (20) 7/16 – 20 UNF
PSW18HD 150 – 2320 (10 – 160) 260 (18) 435 (30) 7/16 – 20 UNF

Numbers in parentheses indicate measurement in bar.
*Note: Hysteresis is not adjustable. Maximum values are shown.

MATERIALS OF CONSTRUCTION

Housing Aluminum / Steel
Seal

Dynamic PTFE
Static Buna-N

SPECIFICATIONS

Ports 1/4" NPT or 7/16-20 UNF (SAE-4)
Adjustment Range 70 to 1015 PSI (5 to 70 bar) and

150 to 2320 PSI (10 to 160 bar)

Proof Pressure* 5800 PSI (400 bar)
Temperature Rating

Ambient -13° to 175° F (-25° to 80° C)

Media -13° to 175° F (-25° to 80° C)
Max. Viscosity 450 SSU (1000 mm2/s)
Switching Element SPDT Microswitch
Max. Switching Rate 100 cycles/minute
Repeatability ±3%
Electrical Connector DIN Style Plug with Removable

Cable Plug Adapter

*Note: Do not subject switch to proof pressure during normal operation.

Even short pressure peeks must not exceed proof pressure.

FEATURES

Rugged Compact Design
Convenient Setpoint Adjustments
High Cycle Life
Vibration Resistant to 15g
UL and CSA Approved Microswitch
Gold Plated Contacts

APPLICATION

Ideal for Control of Hydraulic, Lubricating and Light Fuel Oils

Terminals 1 - 2: Contacts open on rising pressure.
Terminals 1 - 3: Contacts close on rising pressure.

All dimensions in inches (mm)

2

3

1

p

.79 (20)

1.18 (30)

.59 (15)

.21 (5.3)

.31

(8)

2.83 (72)

1.18 (30)

2.95 (75)

Switch Adjustment

1

/4 NPT, or

7/16-20 UNF

Pressure port
material:
430 SS

PART NUMBER IDENTIFICATION

PSW18H Series

HYDRAULIC, PISTON-STYLE PRESSURE SWITCH