Omega Products LVR300 Installation Manual

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LVR300 Series

Continuous Level Switch System

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User’s Guide

LVR300 Series

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

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: En Espan˜ ol: [phone]-7803 e-mail: [e-mail]

FAX: [phone] [e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

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

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

TEL: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

TEL: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
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

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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.

The LVR300 Series’ programming ring can be rotated from the Neutral center position to
Position 1 and Position 2. The following actions are possible:

A – Display of parameters with Position 1 (simultaneous display of the set parameters) –

Turn the programming ring left to Position 1 to begin cycling through these programming
parameters: Switching points S1 and S2, Hysteresis direction of S1 and S2,
Hysteresis Hyst 1 and Hyst 2, Code (allows editing of additional parameters),
Filter, Units, Output, 4 mA Value and 20 mA value. See following pages for
detailed programming instructions.

B – Editing with Position 2

Turn the programming ring to the right to Position 2 and a flashing cursor
appears showing the position to be changed. With repeated turning to
Position 2, the values are increased. By turning to Position 1, you obtain
the next position. Each position can be edited in this way. If there is no

action within 5 seconds, the device returns to the normal display sec­tion without the change being accepted, and you will have to cycle
through the program again.

C – Saving the change with Position 1

Turning one time toward Position 1 after quitting the last value signifies
acceptance of the change.

Programming protection:

The programming ring can be pulled off,
inverted and replaced. This will prevent further
programming resulting from turning the ring in
either direction.

The complete LVR300 Series Sensor is designed to be a self-contained continuous level sen-

sor and control, requiring only a power source. A 16-bit microcontroller with a 14-bit A/D
converter and a 12-bit D/A converter provides the necessary processing speed and

measurement accuracy. The signal is displayed with units using a back-lit LCD

graphical display and converted to a 4-20 mA signal. Two switch points
with either a positive or negative output can be programmed over the com­plete range.

The switching point hysteresis can be set separately in value and direction
(minimum/maximum switching value). Upward and downward crossings of switching points and error messages are
shown in the display with a flashing red LED that is easily visible from a distance.

Other parameters can be changed using codes, including: signal filter; selectable unit (inch, cm) includes automatic con­version of the values; selectable 0-20 mA or 4-20 mA output; value assignment of 4-20 mA (setting of zero point and
span). The complete housing can be rotated around the mechanical connection so that the correct reading position can be
set after mounting (installation).

This LVR300 Series is very easy to use, as dialog messages are displayed for the user. It can even be set when wearing
protective gloves, if necessary.

Operating Principle

© Copyright Omega Engineering Inc. – 4/05

All specifications are subject to change without notice.

LVR300 Series Sensor Overview

Programming Overview

Value

S1 max.

Alarm range

Hyst 1

Time

Value

S1 min.

Time

Hyst 1

Alarm range

Terminal Assignment

The switch points are automatically chang-

ing to positive or negative, depending on

your interface.

Mating Connector

M12 x 1, 5-position female, shielded, straight or
M12 x 1, 5-position female, shielded, right angle

Sources: Hirschmann, Binder,

rde Connectors & Cables or

comparable connector

Programming Ring turns from

Position 1 to Position 2

Example of hysteresis setting:

Examples with S1 as maximum switching point
and as minimum switching point:

LVR
Sensor

Z = load

1

24 to 30 VDC

2

4-20 mA

3

4

5

brown

white

blue

0 V

S1

S2

black

gray

z

z

or

NPNExample: PNP

z