Omega Products PX831 Installation Manual

Servicing USA and Canada: Call OMEGA Toll Free

OMEGA Engineering, Inc.

One Omega Drive, Box 4047

Stamford, CT 06907-0047 U.S.A.

Headquarters: [phone]

Sales: 1-800-826-6342 / 1-800-TC-OMEGA

Customer Service: 1-800-622-2378 / 1-800-622-BEST

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

FAX: [phone] TELEX: 996404 EASYLINK:62968934 CABLE: OMEGA

Servicing Europe: United Kingdom Sales and Distribution Center

OMEGA Technologies Ltd.

P.O. Box 1, Broughton Astley, Leicestershire

LE9 6XR, England

Telephone: [phone] FAX: [phone]

The OMEGA Complete Measurement and

Control Handbooks & Encyclopedias TM

aTemperature apH and Conductivity

aPressure, Strain & Force aData Acquisition systems
aFlow and Level aElectric Heaters

PX831 and PX832

Electronic Pressure Transmitters

Call for Your FREE Handbook Set Today: (203) 359-RUSH

Operator’s Manual
M3807/0502

REV A

WARRANTY

OMEGA warrants this unit to be free of defects in materials and workmanship and to give satisfactory service for a
period of 13 months (PX831) or 13 months (PX832) from date of purchase. OMEGA Warranty adds an additional
one (1) month grace period to the normal product warranty to cover handling and shipping time. This ensures that
our customers receive maximum coverage on each product. If the unit should malfunction, it must be returned to
the factory for evaluation. Our 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. However, this WARRANTY is VOID if the unit shows evidence of having
been tampered with or shows evidence of being 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 which wear or which are damaged by misuse are not warranted. These include
contact points, fuses, and triacs.

We are glad to offer suggestions on the use of our various products. Nevertheless OMEGA only warrants
that the parts manufactured by it 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 buyer 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.

Every precaution for accuracy has been taken in the preparation of this manual, however, OMEGA
ENGINEERING, INC. neither assumes responsibility for any omissions or errors that may appear nor assumes
liability for any damages that result from the use of the products in accordance with the information contained in the
manual.

SECTION III

OPERATION

PRINCIPLE OF OPERATION

The Model PX831 and PX832 Pressure
Transmitter series are designed to continuously
measure process pressure. The heart of the
transmitter is a silicon piezoresistive sensing chip.
This miniature microetched semiconductor gives
an output proportional to the applied pressure.
This chip is isolated from the process media by a
stainless steel diaphragm. A silicone oil or other
specified fill fluid is used to transmit the process
pressure to the sensor.

A surface mount amplifier board, enclosed in a
sealed chamber, is used to convert the millivolt
signal from the sensor to a calibrated transmitter
output. Transmitter electronics are completely
surge protected.

OPERATION

Each transmitter is tested over both pressure and
temperature ranges. A thick film compensator
circuit is used to bring the output of the sensor
into specification. After compensation, every
transmitter is tested a second time for pressure and
temperature effects to ensure that it meets
performance specifications.

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA ENGINEERING Customer Service Department.
Call toll free in the USA and-Canada: 1-800-622-2378, FAX: [phone]; International: 203359-1660, FAX: 203­359-7807.

BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, YOU MUST OBTAIN AN AUTHORIZED RETURN (AR)
NUMBER. FROM OUR 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.

FOR WARRANTY RETURNS, please have the following FOR NON-WARRANTY REPAIRS OR CALIBRATION
information available BEFORE contacting OMEGA: consult OMEGA for current repair/calibration
charges. Have the following information avail-

1. P.O. number under which the product able BEFORE contacting OMEGA:
was PURCHASED, 1. Your P.O. number to cover the COST

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

3. Repair instructions and/or specific problems 3. Repair instructions and/or specific problems
you are having with the product. you are having with the product.

OMEGA's policy is to make running changes, not model changes, whenever an improvement is possible. That way
our customers get the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
(D Copyright 1992 OMEGA ENGINEERING, INC. All rights reserved including illustrations. Nothing in this manual

may be reproduced in any manner, either wholly or in part for any purpose whatsoever without written permission
from OMEGA ENGINEERING, INC. Printed in U.S.A.

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