Omega Products LVP-51 Installation Manual

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

TEMPERATURE

䡺⻬

Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies

䡺⻬

Wire: Thermocouple, RTD & Thermistor

䡺⻬

Calibrators & Ice Point References

䡺⻬

Recorders, Controllers & Process Monitors

䡺⻬

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

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Transducers & Strain Gauges

䡺⻬

Load Cells & Pressure Gauges

䡺⻬

Displacement Transducers

䡺⻬

Instrumentation & Accessories

FLOW/LEVEL

䡺⻬

Rotameters, Gas Mass Flowmeters & Flow Computers

䡺⻬

Air Velocity Indicators

䡺⻬

Turbine/Paddlewheel Systems

䡺⻬

Totalizers & Batch Controllers

pH/CONDUCTIVITY

䡺⻬

pH Electrodes, Testers & Accessories

䡺⻬

Benchtop/Laboratory Meters

䡺⻬

Controllers, Calibrators, Simulators & Pumps

䡺⻬

Industrial pH & Conductivity Equipment

DATA ACQUISITION

䡺⻬

Data Acquisition & Engineering Software

䡺⻬

Communications-Based Acquisition Systems

䡺⻬

Plug-in Cards for Apple, IBM & Compatibles

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Datalogging Systems

䡺⻬

Recorders, Printers & Plotters

HEATERS

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Heating Cable

䡺⻬

Cartridge & Strip Heaters

䡺⻬

Immersion & Band Heaters

䡺⻬

Flexible Heaters

䡺⻬

Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

䡺⻬

Metering & Control Instrumentation

䡺⻬

Refractometers

䡺⻬

Pumps & Tubing

䡺⻬

Air, Soil & Water Monitors

䡺⻬

Industrial Water & Wastewater Treatment

䡺⻬

pH, Conductivity & Dissolved Oxygen Instruments

M-3949/0403

http://www.omega.com

e-mail: [e-mail]

“

User’s Guide

LVP-51 Series

Non-Intrusive Capacitance Switch

omega.com

®

®

It is the policy of OMEGA 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 Engineering, Inc. 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.

Benelux:

Postbus 8034, 1180 LAAmstelveen

The Netherlands

Tel: [phone] FAX: [phone]

Toll Free in Benelux: 0800 0993344

e-mail: [e-mail]

Czech Republic:

Frystatska 184/46, 733 01 Karvina´, 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]

Servicing Europe:

USA 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

USA: ISO 9001 Cer

tified

One Omega Drive, Box 4047

Stamford CT 06907-0047

Tel: [phone]

FAX: [phone]

e-mail: [e-mail]

Servicing North America:

For immediate technical or application assistance:

Mexico:

En Espan

~

ol: [phone]-7803

FAX: [phone]

e-mail: [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: ISO 9002 Certified

One Omega Drive

River Bend Technology Centre

Northbank, Irlam

Manchester M44 5BD

United Kingdom

Tel: [phone]

FAX: [phone]

Toll Free in United Kingdom:

0800-488-488

e-mail: [e-mail]

Canada:

976 Bergar

Laval (Quebec) H7L 5A1, Canada

Tel: [phone]

FAX: [phone]

e-mail: [e-mail]

OMEGAnet

®

On-Line Service Internet e-mail

www.omega.com [e-mail]

FOR WARRANTY 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 fol-

lowing information available BEFORE contacting

OMEGA:

1. Purchase O rd er 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 2003 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photo-

copied, 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.

WARRANTY/ DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a peri-

od 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 unautho-

rized 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 vibra-

tion; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control.

Components which wear are not warranted, including but 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 it will be as

specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS

OF ANY KIND WHATSOEVER, EXPRESS 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.

USA

MAD

IN

Step One

SPECIFICATIONS

Technology:

The non-intrusive RF capacitance switch detects the pres­ence of liquid or air by measuring the conductive or dielec­tric values which are present in all materials. An electrical
capacitor is formed between the level switch and the outer
tank wall. As liquid rises and falls against the inner wall, the
capacitance effect is greatly increased and the 1A SPST
relay changes state.

1.7"(44mm)

2.8"(71mm)

3.2"(81mm)

8’ Cable (2.5m)

(+)

(-)

NO/NC

COM

Shld

Red

RELAY

Black

White

Green

1.0"

(25mm)

1.6"(41mm)

2.2"(56mm)

100

80
60
40
20
00

-20
12 16 20 24 28 32 36

Acceptable

Range

Unacceptable

Range

Maximum Tem. / Voltage Derating

Continuous 20 mA Sinking Curve

Ambient Sensor Temperature (¡C)

Operating Voltage (VDC)

1,600
1,400
1,200
1,000

800
600
400
200

0

12 18 24 30 36

Acceptable

Range

Unacceptable

Range

4-20 mA Sensor

Electrical Loading Limits

Max. Series Resistance (Ohms)

Supply Voltage (VDC)

Acetone 21
Acetoaldehyde 22.2
Acetyl methyl hexyl

ketone 28
Alcohol 16 to 31
Ammonia 15 to 25
Acetic acid 4.1 to 6.2
Butyl chloride 9.6
Barium chloride 9 to 11
Benzene 2.3
Benzine 2.3
Barium nitrate 5.6
Bromine 3.1

Chlorobenzene 4.7 to 6
Chlorotoluene 4.7
Chloroform 4.5 to 5.0
Chlorine, liquid 2.0
Carbon tetrachloride 2.2
Cyan 2.6
Cyclohexanemethanol 3.7
D.I. Water 20
Ethyl toluene 2.2
Ethyl alcohol 23
Ethylene glycol 37
Ethylene oxide 14

Ethylene dichloride

11 to 17
Ethylene chloride 10.5
Ethyl acetate 6.4
Ethyl salicylate 8.6
Ethyl stearate 2.9
Ethyl silicote 4.1
Formic acid 59
Ferric oleate 2.6
Freon 2.2
Glycerine 47
Glycol 30
Glycol nitrite 27

Gasoline 2 to 2.2
Hydrochloric acid 4.6
Isobutyric acid 2.7
Isobutyl methyl ketone 13
Jet fuel 1.7
Lead carbonate 18
Lead nitrate 38
Methyl salicylate 9.0
Methanol 33
Methyl alcohol 33 to 38
Margarine,liquid 2.8 to 3.2
Methyl acetate 7.3
N-butyl formate 2.4

Nitrobenzene 26 to 35
Nitrotoluene 25
Naphthalene 2.3 to 2.5
Oils, vegetable 2.5 to 3.5
Oils, mineral 2.3 to 2.4
Oils, petroleum 1.8 to 2.2
Oleic acid 2.5
Propane, liquid 1.8 to 1.9
Potassium nitrate

5.0 to 5.9
Potassium chloride 5.0
Stearic acid 2.3
Toluene 2.4

Trichloroethylene 3.4
Trichloroacetic acid 4.5
Terephthalic acid

1.5 to 1.7
Thinner 3.7
Urea 3.5
Vinyl chloride 2.8 to 6
Vinyl alcohol 1.8 to 2.0
Water, 20°C 80
Water, 100°C 48

Table of Common Dielectric Constants:

NOTE: Liquids with a conductivity value > 100 µ U are fine if coating is not an issue. Liquids with a dielectric constant less than 20 may not be reli­ably detected by an LVP-51 series level switch, depending on conditions.

Tank mounting:
T ank mat. comp.:
Tank wall thick.:
Accuracy:
Repeatability:
Dielectric range:
Conductive range:
Supply voltage:
Consumption:
Contact type:
Contact rating:

Contact output:
Process temp.:

Enclosure rating:
Enclosure mat.:
Conduit entrance:
Bracket material:
Bracket mounting:

Cable jacket mat.:
Cable type:

Cable length:
Classification:
CE compliance:

Non-intrusive
Non-metallic
< 1" (25 mm)

±

1 mm in water

±

0.5 mm in water
> 10 constants
> 100 micromhos
12-36 VDC
25 mA maximum
(1) SPST relay
120 VAC/VDC @ 1A
(CE: 60 VAC/VDC @ 1A)
Selectable NO/NC
F: -40˚ to 194˚
C: -40˚ to 90˚
NEMA 4X (IP65)
PSO
Single, 1/2" NPT
PE
3M adhesive / plastic
thermal weld
PP
4-conductor, #22 AWG
(shielded)
Standard: 10' (3m)
General purpose
EN 50082-2 immunity
EN 55011 emission
EN 61010-1 safety