KROHNE OPTISWITCH 5200C Manuale utente

Operating Instructions

OPTISWITCH 5200 C,5250 C

with two-wire output

Contents

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

2.4CE conformity ......................... 5

2.5SIL conformity ......................... 6

2.6Safety instructions for Ex areas ............ 6

3Product description

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

3.2Principle of operation.................... 7

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

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

4Mounting

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

4.2Mounting instructions.................... 13

5Connecting to voltage supply

5.1Preparing the connection ................. 16

5.2Connection steps....................... 16

5.3Wiring plan,single chamber housing......... 17

6Set up

6.1General.............................. 20

6.2Adjustment elements .................... 21

6.3Function chart ......................... 21

6.4Recurring test and function test ............ 22

7Maintenance and fault rectiﬁcation

7.1Maintenance .......................... 25

7.2Rectify faults .......................... 25

7.3Instrument repair ....................... 26

8Dismounting

8.1Dismounting procedure .................. 27

8.2Disposal ............................. 27

2OPTISWITCH 5200 C,5250 C-with two-wire output

Contents

30435-EN-060831

9Supplement

9.1Technical data......................... 28

9.2Dimensions ........................... 32

OPTISWITCH 5200 C,5250 C-with two-wire output 3

Contents

30435-EN-060831

1About this document

1.1Function

This operating instructions manual has all the information you

need for quick setup and safe operation.Please read this

manual before you start setup.

1.2Target group

This operating instructions manual is directed to trained,

qualiﬁed 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

malfunctions 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.

4OPTISWITCH 5200 C,5250 C-with two-wire output

About this document

30435-EN-060831

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 operator.For safety and warranty reasons,

any internal work on the instruments must be carried out only

by personnel authorised by the manufacturer.

2.2Appropriate use

OPTISWITCH 5200 C,5250 Cis a sensor for level detection.

Detailed information on the application range of OPTISWITCH

5200 C,5250 Cis available in chapter "Product description".

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

OPTISWITCH 5200 C,5250 Cis 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 instal-

lation standards (e.g.the VDE regulations in Germany)as well

as all prevailing safety regulations and accident prevention

rules.

2.5CE conformity

OPTISWITCH 5200 C,5250 Cis in CE conformity with EMC

(89/336/EWG), fulﬁls NAMUR recommendation NE 21 and is

in CE conformity with LVD (73/23/EWG).

Conformity has been judged according to the following

standards:

lEMC:

-Emission EN 61326/A1:1998 (class B)

-Susceptibility EN 61326:1997/A1:1998

lLVD:EN 61010-1:1993

OPTISWITCH 5200 C,5250 C-with two-wire output 5

For your safety

30435-EN-060831

2.6SIL conformity

OPTISWITCH 5200 C,5250 Cfulﬁlls the requirements of

functional safety according to IEC 61508/IEC 61511.You can

ﬁnd further information in the supplementary instructions

manual "Safety Manual -Functional safety (SIL)OPTISWITCH

5XXX".

2.7Safety instructions for Exareas

Please note the Ex-speciﬁc safety information for installation

and operation in Ex areas.These safety instructions are part of

the operating instructions manual and come with the Ex-

approved instruments.

6OPTISWITCH 5200 C,5250 C-with two-wire output

For your safety

30435-EN-060831

3Product description

3.1Conﬁguration

The scope of delivery encompasses:

lOPTISWITCH 5200 C,5250 Clevel sensor

lDocumentation

-this operating instructions manual

-Ex speciﬁc safety instructions (with Ex versions), if

necessary further certiﬁcates

OPTISWITCH 5200 C,5250 Cconsists of the following

components:

lHousing cover

lHousing with electronics

lprocess ﬁtting with tuning fork

Fig.1:OPTISWITCH 5200 C,5250 Cwith plastic housing

1Housing cover

2Housing with electronics

3Process ﬁtting

3.2Principle of operation

OPTISWITCH 5200 C,5250 Cis a level sensor with tuning

fork for level detection.

Scope of delivery

Components

Area of application

OPTISWITCH 5200 C,5250 C-with two-wire output 7

Product description

30435-EN-060831

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,OPTISWITCH 5200 C,5250

Ccan 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,OPTI-

SWITCH 5200 C,5250 Cis 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 OPTISWITCH 5200 C,5250 C

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 one of these faults is detected,the electronics signals it via a

deﬁned current to the signal conditioning instrument.The

connection cable to the sensor is also monitored on line break

and short-circuit.

The tuning fork is piezoelectrically energised and vibrates at its

mechanical resonance frequency of approx.1200 Hz.The

piezos are fastened mechanically and are hence not subject to

temperature shock limitations.When the tuning fork is

submerged in the product,the frequency changes.This

change is detected by the integrated oscillator,transferred to

the signal conditioning instrument as current value and

converted into a switching command.

Depending on your requirements,OPTISWITCH 5200 C,5250

Cwith two-wire electronics can be connected to diﬀerent

signal conditioning instruments.Compatible signal condition-

ing instruments are listed under "Technical data".

The exact range of the power supply is stated in the "Technical

data"in the "Supplement".

Physical principle

Power supply

8OPTISWITCH 5200 C,5250 C-with two-wire output

Product description

30435-EN-060831

3.3Operation

The switching condition of OPTISWITCH 5200 C,5250 Cwith

plastic housing can be checked when the housing is closed

(signal lamp). With the basic setting,products with a density

>0.7g/cm³(>0.025 lbs/in³)can be detected.The instrument

can be adapted if products with lower density should be

measured.

On the electronics module you will ﬁnd the following indicating

and adjustment elements:

lsignal lamp for indication of the switching condition (green/

red)

lDIL switch for adaptation to the product density

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 55439.

The packaging of standard instruments consists of environ-

ment-friendly,recyclable cardboard.In addition,the sensor is

provided with a protective cover of ABS.For special versions

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

material via specialised recycling companies.

lStorage and transport temperature see "Supplement -

Technical data -Ambient conditions"

lRelative humidity 20 …85 %

Packaging

Storage and transport tem-

perature

OPTISWITCH 5200 C,5250 C-with two-wire output 9

Product description

30435-EN-060831

4Mounting

4.1General instructions

In general,OPTISWITCH 5200 C,5250 Ccan be mounted in

any position.The instrument must be mounted in such a way

that the tuning fork is at the height of the requested switching

point.

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

switching point with vertical mounting.The switching point

refers to water with the basic setting of the sensitivity switch

>=0.7g/cm³(>=0.025 lbs/in³). When mounting OPTISWITCH

5200 C,5250 C,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 -water =1g/cm³(=0.036 lbs/in³). For

products <0.7g/cm³(<0.025 lbs/in³)and >0.5g/cm³

(>0.018 lbs/in³)the density switch must be set to >=0.5g/cm³.

Fig.2:Vertical mounting

1Switching point approx.13 mm (approx.0.51 in)

2Switching point with lower density

3Switching point with higher density

4Switching point approx.27 mm (approx.1.06 in)

Switching point

10 OPTISWITCH 5200 C,5250 C-with two-wire output

Mounting

30435-EN-060831

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