Siemens SITRANS LVL100 Manuale utente

Operating Instructions ·April 2008

SITRANS LVL100

Content

1About this document

1.1Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2Target group . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3Symbolism used . . . . . . . . . . . . . . . . . . . . . . . 4

2For your safety

2.1Authorised personnel . . . . . . . . . . . . . . . . . . . . 5

2.2Appropriate use. . . . . . . . . . . . . . . . . . . . . . . . 5

2.3Warning about misuse . . . . . . . . . . . . . . . . . . . 5

2.4General safety instructions . . . . . . . . . . . . . . . . 5

2.5Safety approval markings and safety tips . . . . . 6

2.6CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . 6

3Product description

3.1Conﬁguration. . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.2Principle of operation. . . . . . . . . . . . . . . . . . . . 8

3.3Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.4Storage and transport . . . . . . . . . . . . . . . . . . . 9

4Mounting

4.1General instructions. . . . . . . . . . . . . . . . . . . . . 10

4.2Mounting instructions. . . . . . . . . . . . . . . . . . . . 12

5Connecting to power supply

5.1Preparing the connection . . . . . . . . . . . . . . . . . 15

5.2Wiring plan . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6Set up

6.1Indication of the switching status . . . . . . . . . . . 18

6.2Function test . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.3Functional chart. . . . . . . . . . . . . . . . . . . . . . . . 19

7Maintenance and fault rectiﬁcation

7.1Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7.2Remove interferences . . . . . . . . . . . . . . . . . . . 20

7.3Exchange electronics. . . . . . . . . . . . . . . . . . . . 21

7.4Instrument repair . . . . . . . . . . . . . . . . . . . . . . . 23

8Dismounting

8.1Dismounting steps . . . . . . . . . . . . . . . . . . . . . . 24

8.2Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH

Content

33843-EN-080421

9Supplement

9.1Technical data. . . . . . . . . . . . . . . . . . . . . . . . . 25

9.2Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH 3

Content

33843-EN-080421

1About this document

1.1Function

This operating instructions manual provides all the information

you need for mounting,connection and setup as well as

important instructions for maintenance and fault rectiﬁcation.

Please read this information before putting the instrument into

operation and keep this manual accessible in the immediate

vicinity of the device.

1.2Target group

This operating instructions manual is directed to trained

personnel.The contents of this manual should be made

available to these personnel and put into practice by them.

1.3Symbolism used

Information,tip,note

This symbol indicates helpful additional information.

Caution:If this warning is ignored,faults or malfunc-

tions can result.

Warning:If this warning is ignored,injury to persons and/or

serious damage to the instrument can result.

Danger:If this warning is ignored,serious injury to persons

and/or destruction of the instrument can result.

Ex applications

This symbol indicates special instructions for Ex applications.

lList

The dot set in front indicates a list with no implied sequence.

àAction

This arrow indicates a single action.

1Sequence

Numbers set in front indicate successive steps in a procedure.

4SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH

About this document

33843-EN-080421

2For your safety

2.1Authorised personnel

All operations described in this operating instructions manual

must be carried out only by trained specialist personnel

authorised by the plant operator.

During work on and with the device the required personal

protection equipment must always be worn.

2.2Appropriate use

SITRANS LVL100 is a sensor for level detection.

You can ﬁnd detailed information on the application range in

chapter "Product description".

Operational reliability is ensured only if the instrument is

properly used according to the speciﬁcations in the operating

instructions manual as well as possible supplementary

instructions.

For safety and warranty reasons,any invasive work on the

device beyond that described in the operating instructions

manual may be carried out only by personnel authorised by the

manufacturer.Arbitrary conversions or modiﬁcations are

explicitly forbidden.

2.3Warning about misuse

Inappropriate or incorrect use of the instrument can give rise to

application-speciﬁc hazards,e.g.vessel overﬁll or damage to

system components through incorrect mounting or adjustment.

2.4General safety instructions

This is a high-tech instrument requiring the strict observance of

standard regulations and guidelines.The user must take note

of the safety instructions in this operating instructions manual,

the country-speciﬁc installation standards as well as all

prevailing safety regulations and accident prevention rules.

The instrument must only be operated in a technically ﬂawless

and reliable condition.The operator is responsible for trouble-

free operation of the instrument.

SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH 5

For your safety

33843-EN-080421

During the entire duration of use,the user is obliged to

determine the compliance of the required occupational safety

measures with the current valid rules and regulations and also

take note of new regulations.

2.5Safety approval markings and safety tips

The safety approval markings and safety tips on the device

must be observed.

2.6CE conformity

SITRANS LVL100 is in CE conformity with EMC (89/336/

EWG), fulﬁls NAMUR recommendation NE 21 and NE 23 and

is in CE conformity with NSR (73/23/EG).

Conformity has been judged according to the following

standards:

lEMC:

-Emission EN 61326:1997 (class B)

-Susceptibility EN 61326:1997/A1:1998

lLVD:EN 61010-1:2001

6SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH

For your safety

33843-EN-080421

3Product description

3.1Conﬁguration

The scope of delivery encompasses:

lSITRANS LVL100 point level sensor

lTest magnet

lDocumentation

-this operating instructions manual

-if necessary,certiﬁcates

SITRANS LVL100 consists of the following components:

lHousing with electronics

lprocess ﬁtting with tuning fork

Fig.1:SITRANS LVL100

The type label contains the most important data for identi-

ﬁcation and use of the instrument:

lArticle number

lSerial number

Scope of delivery

Components

Type label

SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH 7

Product description

33843-EN-080421

lTechnical data

lArticle numbers,documentation

3.2Principle of operation

SITRANS LVL100 is a point level sensor with tuning fork for

level detection.

It is designed for industrial use in all areas of process

technology and can be used in liquids.

Typical applications are overﬁll and dry run protection.With a

tuning fork of only 40 mm length,SITRANS LVL100 can be

also mounted,e.g.in pipelines from DN 25.The small tuning

fork allows use in vessels,tanks and pipes.Thanks to its

simple and robust measuring system,SITRANS LVL100 is

virtually unaﬀected by the chemical and physical properties of

the liquid.

It functions even under diﬃcult conditions such as turbulence,

air bubbles,foam generation,buildup,strong external vibration

or changing products.

Fault monitoring

The electronics module of SITRANS LVL100 continuously

monitors via frequency evaluation the following criteria:

lStrong corrosion or damage on the tuning fork

lloss of vibration

lLine break to the piezo drive

If a malfunction is detected or in case of power failure,the

electronics takes on a deﬁned switching condition,i.e.the

contactless electronic switch opens (safe condition).

The tuning fork is piezoelectrically energised and vibrates at its

mechanical resonance frequency of approx.1200 Hz.The

piezos are ﬁxed mechanically and are hence not subject to

temperature shock limitations.The frequency changes when

the tuning fork is covered by the medium.This change is

detected by the integrated oscillator and converted into a

switching command.

SITRANS LVL100 is a compact instrument,i.e.it can be

operated without external evaluation system.The integrated

electronics evaluates the level signal and outputs a switching

signal.With this switching signal,a connected device can be

operated directly (e.g.a warning system,aPLC,a pump etc.).

Area of application

Functional principle

Supply voltage

8SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH

Product description

33843-EN-080421

Data for power supply are speciﬁed in chapter "Technical

data".

3.3Operation

The switching status of SITRANS LVL100 can be checked with

closed housing (signal lamp). Products with a density >0.7g/

cm³(0.025 lbs/in³)can be detected.

3.4Storage and transport

Your instrument was protected by packaging during transport.

Its capacity to handle normal loads during transport is assured

by a test according to DIN EN 24180.

The packaging of standard instruments consists of environ-

ment-friendly,recyclable cardboard.For special versions,PE

foam or PE foil is also used.Dispose of the packaging material

via specialised recycling companies.

Transport must be carried out under consideration of the notes

on the transport packaging.Nonobservance of these instruc-

tions can cause damage to the device.

The delivery must be checked for completeness and possible

transit damage immediately at receipt.Ascertained transit

damage or concealed defects must be appropriately dealt

with.

Up to the time of installation,the packages must be left closed

and stored according to the orientation and storage markings

on the outside.

Unless otherwise indicated,the packages must be stored only

under the following conditions:

lNot in the open

lDry and dust free

lNot exposed to corrosive media

lProtected against solar radiation

lAvoiding mechanical shock and vibration

lStorage and transport temperature see "Supplement -

Technical data -Ambient conditions"

lRelative humidity 20 …85 %

Packaging

Transport

Transport inspection

Storage

Storage and transport

temperature

SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH 9

Product description

33843-EN-080421

4Mounting

4.1General instructions

In general,SITRANS LVL100 can be installed in any position.

The instrument simply has be mounted in such a way that the

tuning fork is at the height of the desired switching point.

The tuning fork has lateral marking (notches), marking the

switching point with vertical mounting.The switching point

refers to water (1g/cm³/0.036 lbs/in³). When mounting

SITRANS LVL100,make sure that this marking is at the height

of the requested switching point.Keep in mind that the

switching point of the instrument is shifted if the medium has a

density other than water.

13mm

(33/64")

13mm

(33/64")

Fig.2:Vertical mounting

1Switching point approx.13 mm (0.51 in)

2Switching point with lower density

3Switching point with higher density

Switching point

10 SITRANS LVL100 lCONTACTLESS ELECTRONIC SWITCH

Mounting

33843-EN-080421

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