Omega PSW2000 User Manual

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PSW2000

Operating Instructions Dual Pressure Switch

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User

’

s Guide

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2

Servicing North America:

U.S.A.: 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, Canada
TEL: [phone]
FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. 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

®

Mexico: En Espan˜ ol: [phone]-7803

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

Servicing Europe:

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

TEL: [phone]
FAX: [phone]

Toll Free: 0800-1-66342
e-mail: [e-mail]

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

TEL: [phone]
FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
TEL: [phone]
FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

It is the policy of OMEGA Engineering, Inc. 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 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, human applications.

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3

1. Product Description

2. Starting operations

Intended Applications

- The dual pressure switch monitors system pressures and has up to two switching outputs
and one analog output.

- According to DESINAstandard

- The instruments must only be installed in systems where the maximum pressure Pmax is not
exceeded (according to the values on the type label).

- Attention: This device is not designed to be used as the only safety relevant element in
pressurized systems according PED 97/23/RC

Only install or uninstall the device when depressurized!

- Mount the pressure switch from bottom to the fitting with a wrench hex 36 (1/4 ) resp. 19
with 45 Nm torque.

- Electrical connection depends on the type of pressure switch (see type label) according to the
chart below.

Electrical
connections

PSW3000

Dimensions (in mm)

Plug
M 12 x 1,
4-pin

Model with 1
switching output

Model with 2
switching outputs
(DESINA



)

Model with 1 switching
output and 1 analog output

Pin 1 (15...32 V DC) (15...32 V DC) (15...32 V DC)
Pin 2 - SP2 (0,5 A max.) analog
Pin 3 0V 0 V 0 V
Pin 4 SP1 (0,5 A max.) SP1 (0,5 A max.) SP1 (0,5 A max.)

PSW2000.qxp 6/12/2008 10:37 AM Page cov-5

Dialog item Value Description

0 ... 400 Display of the actually measured value

.... Select the display unit

Activation of the unit display

....

0 ... xxx Switch-on point for SP1; if the ON value is smaller than the OFF value the

switching point evaluation is falling

0 ... xxx Switch-off point for SP1

0.0 s ... 9.9 s Switch-on delay for SP1 in seconds

0.0 s ... 9.9 s Switch-off delay for SP1 in seconds

.... Inversion of switching output SP1

Only models with 2nd switching contact:

0 ... xxx Switch-on point for SP2; if the ON value is smaller than the OFF value the

switching point evaluation is falling

0 ... xxx Switch-off point for SP2

0.0 s ... 9.9 s Switch-on delay for SP2 in seconds

0.0 s ... 9.9 s Switch-off delay for SP2 in seconds

.... Inversion of switching output SP2

List of functions:

4

= mbar

= bar

= unit display on (every 30 sec)

= no unit display

= psi x 10

= Window technology

= standard evaluation

= high-level-fail-save (normally open function)

= low-level-fail-save (normally closed function)

= high-level-fail-save (normally open function)

= low-level-fail-save (normally closed function)

= error output

= Window technology

= standard evaluation

= error output

= psi

= hPa

= mPa

PSW2000.qxp 6/12/2008 10:38 AM Page cov-6

List of functions: (continued)

5

Dialog item Value Description

Only models with analog output:

0 ... xxx Scale the analog output - start value (e. g. 0 bar = 4 mA)

0 ... xxx Scale the analog output - end value (e. g. 400 bar = 20 mA)

(output signal start value always corresponds to the display initial value, e.
g. 0 bar = 4mA)
Maximum turn-down 4 : 1, i.e. at values below 25 % of the measuring range
the analog output is switched off

0 ... xxx Display of peak value "Max" (xxxx: = max. 125 % f. s.)

.... Delete the maximum value memory

Error display:

Note:

When changing units from psi to bar or bar to psi, the switching point values must be changed accordingly.

= exceeding neg. measuring range

= sensor error

= no error

= exceeding pos. measuring range

= data error (EEProm)

= program error

= error switching output 1

= error switching output 2

= calibration error

= error analog out

= no deletion

= delete value

PSW2000.qxp 6/12/2008 10:38 AM Page cov-7

6

Operation

The pressure switch should be installed and operated only by authorized persons. After being switched on,
the PSW2000 runs through a self-text. The device is menu operated and configured with three keys on the
front. With the “M“ key (= mode) you change between the dialog values and the adjusted / actual values.
With the keys ““= up and ““= down you change between the dialog values in the menu or change the
values / functions in the menus (see below “List of functions“).

If the dialog is not continued within two minutes the device automatically returns to the measuring mode.
When the software lock is entered, “LOCK“ appears in the display when an attempt is made to change values.

Electrical connections (scheme)

*SP2 = Diagnosis output (DESINA-version)

Programming:

The setting menu is activated with the mode key. The dialog items are selected with the ““and ““keys.
If the mode key is pressed again the corresponding value for the dialog item is shown and can be altered with
the ““and ““keys. If the dialog with the unit is not continued within two minutes the device
automatically returns to the measuring mode without accepting the new values.
To terminate programming more quickly, you can switch back to the measuring mode (primary menu) from
any item in the menu by holding the “M“ -key pressed for five seconds.

If the key lock has been activated, the values can be shown, but no changes made. ( ““appears in the
display when an attempt is made to change values). The key lock is activated by pressing the ““and ““
keys simultaneously for at least five seconds. Press again to deactivate the key lock again.

DESINA conformity:

When the switch operates in systems according to DESINA standard, switching point SP2 has to be
programmed as monitoring function: Enter the value (error output) in programming step and the
value (normally closed function) in programming step .
In case of error identification (see menu) a diagnosis signal is automatically actuated on the alarm dis­play on the front panel and on switching point SP2 (pin 2).

PSW2000.qxp 6/12/2008 10:38 AM Page cov-8

WARRANTY/DISCLAIMER

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.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request.
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the
company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of
OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall 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 Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.

FOR W

ARRANTY RETURNS, please have the

following information available BEFORE
contacting OMEGA:

1. Purchase Order number under which the product
was PURCHASED,

2. Model and serial number of the product under
warranty, and

3. Repair instructions and/or specific problems
relative to the product.

FOR NON-WARRANTY REPAIRS,

consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST

of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords
our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2007 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.

PSW2000.qxp 6/12/2008 10:38 AM Page cov-9

M-4675/0508

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

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