Omega Products LVM-140R Installation Manual

INSTRUCTION

SHEET

M-4212/0605

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General Information

1. Switches should be installed rigidly so the float or floats are free to move as the liquid level changes.

2. Switches should be mounted in a tank area free of severe turbulence or protected from such turbulence by
appropriate and adequate slosh shields.

3. Vertical switch stems should be vertical for best results, but satisfactory operation is possible in most liquids
with the stem at up to a 30˚ angle from vertical.

4. Care should be taken that switches are always operated within electrical ratings.

5. Orientation for standard Vertical switches can be changed from normally open to normally closed dry or vice
versa by removing the float and reversing it in the stem, except with the LVM-41J, LVM-41K, and LVM-43R.

Cautions

1. The pressure, temperature and electrical
limitations shown for the specified level
switches must not be exceeded.

2. The pressures and temperatures must take
into consideration possible surges in the
temperature and pressure of the system.

3. The liquids used must be compatible with
the materials of construction. Specifications
of materials will be given upon request.

4. Life expectancy of the switch varies with
applications.

5. Ambient temperature changes can affect
switch set points, since specific gravities of

liquids vary with temperature. Consult
factory for assistance.

6. Level switches have been designed to be
shock and vibration resistant. For maximum
life, both shock and vibration should be
minimized. Consult factory for assistance.

7. Excessive contaminants in fluid may inhibit
float operation, and occasional wipe down
may be necessary.

8. Level switches must not be field repaired

9. Physical damage to product may render
product unserviceable.

10. Installation in a vessel made from magnetic
materials may affect operation.

Installation

Operation is stated in the tank dry position.

Vertical Switches:

NC Operation: SS Floats: Witness mark (round circle) down.

Plastic Floats: Magnets up.

NO Operation: SS Floats: Witness mark (round circle) up.

Plastic Floats: Magnets down.

Typical Current and Voltage Ratings

Maintenance

Maintenance should consist of inspection
to see that the float is free to move and
not coated with any substance, which
would change its weight or volume
significantly. If this occurs, the float
should be cleaned. This is easily
accomplished without disturbing the
installation. In addition, the stem may be
wiped down to remove any build-up.

The only repair possible in the field is
replacement of either the float or stem.
Dents or nicks on the float are usually of
no consequence to operation.

Watts

15

30

60

Voltage

220 AC
110 AC
120 DC

24 DC

220 AC
110 AC
120 DC

24 DC

220 AC
110 AC
120 DC

24 DC

Current Amps

0.07

0.15

0.03

0.14

0.14

0.28

0.07

0.28

0.4

0.5

0.2

0.5

* Note: The ratings at

right are for resistive
loads only. For
inductive loads,
maximum switch life
will be achieved if
appropriate arc
suppression is used.

Materials

(stem,

float)

Polypro.

Polypro.

Polypro.

316 SS

316 SS

316 SS

316 SS

Polypro.

Polypro.

Mounting

3/8-16 BH

3/8-16 BH

3/8-16 BH

1/4 NPT

1/4 NPT

1/4 NPT

1/4 NPT

1/8 NPT

1/8 NPT

Max

Pressure

(PSIG)

50

50

50

200

200

200

200

100

100

Electrical

Rating

(Watts)

15

15

15

60

60

25

25

30

30

Temp.

Type

J

K

RTD

J

RTD

J

K

K

RTD

Omega

Model

Number

LVM -41J

LVM-41K

LVM-43R

LVM-50J

LVM-50R

LVM-50J-SPDT

LVM-50K-SPDT

LVM-140K

LVM-140R

Wire Table for Reed Switch

Model

LVM-41(x)
LVM-43(x)
LVM-50(x)

LVM-140(x)

GA

22
22
22
22

Color

Brown
Brown

Black

White

LVM Series
Level/Temperature Sensors

LVM Series

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.

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.

Servicing North America:

U.S.A.: One Omega Drive, 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]

OMEGAnet®Online Service Internet e-mail

omega.com [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: 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]

M-4212/0605

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 2005 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.