Optiswitch 5200c руководство

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Summary of Contents for KROHNE OPTISWITCH 5200C

060831-EN-30435

Contents

9Supplement

9.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . 28 9.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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

3

About this document

1 About this document

1.1 Function

This operating instructions manual has all the information you need for quick setup and safe operation. Please read this manual before you start setup.

1.2 Target 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.

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2.6 SIL conformity

OPTISWITCH 5200 C, 5250 C fulfills 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«.

2.7 Safety instructions for Ex areas

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 Exapproved instruments.

Product description

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Product description

3.3 Operation

The switching condition of OPTISWITCH 5200 C, 5250 C with plastic housing can be checked when the housing is closed (signal lamp). With the basic setting, products with a density >0.7 g/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:

• signal lamp for indication of the switching condition (green/ red)

• DIL switch for adaptation to the product density

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

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Mounting

4 Mounting

4.1 General instructions

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 >=0.7 g/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 =1 g/cm³ (=0.036 lbs/in³). For products <0.7 g/cm³ (<0.025 lbs/in³) and >0.5 g/cm³

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

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Mounting

1

Fig. 3: Horizontal mounting

1Switching point

2

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Operating InstructionsOPTISWITCH 5200 C, 5250 Cwith contactless electronic switch

Contents1 About this document

1.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3 Symbolism used . . . . . . . . . . . . . . . . . . . . . . . 4

2 For your safety2.1 Authorised personnel . . . . . . . . . . . . . . . . . . . . 52.2 Appropriate use. . . . . . . . . . . . . . . . . . . . . . . . 52.3 Warning about misuse . . . . . . . . . . . . . . . . . . . 52.4 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . 52.5 SIL conformity . . . . . . . . . . . . . . . . . . . . . . . . . 62.6 Safety instructions for Ex areas . . . . . . . . . . . . 6

3 Product description3.1 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . 73.2 Principle of operation . . . . . . . . . . . . . . . . . . . . 73.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.4 Storage and transport . . . . . . . . . . . . . . . . . . . 9

4 Mounting4.1 General instructions. . . . . . . . . . . . . . . . . . . . . 104.2 Mounting instructions . . . . . . . . . . . . . . . . . . . . 13

5 Connecting to voltage supply5.1 Preparing the connection . . . . . . . . . . . . . . . . . 165.2 Connection steps. . . . . . . . . . . . . . . . . . . . . . . 165.3 Wiring plan, single chamber housing. . . . . . . . . 17

6 Set up6.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206.2 Adjustment elements . . . . . . . . . . . . . . . . . . . . 206.3 Function chart . . . . . . . . . . . . . . . . . . . . . . . . . 21

7 Maintenance and fault rectification7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 237.2 Rectify faults . . . . . . . . . . . . . . . . . . . . . . . . . . 237.3 Instrument repair . . . . . . . . . . . . . . . . . . . . . . . 24

8 Dismounting8.1 Dismounting procedure . . . . . . . . . . . . . . . . . . 258.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Contents

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9 Supplement9.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . 269.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

OPTISWITCH 5200 C, 5250 C — with contactless electronic switch 3

Contents

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1 About this document1.1 FunctionThis operating instructions manual has all the information youneed for quick setup and safe operation. Please read thismanual before you start setup.

1.2 Target groupThis operating instructions manual is directed to trained,qualified personnel. The contents of this manual should bemade available to these personnel and put into practice bythem.

1.3 Symbolism usedInformation, tip, noteThis symbol indicates helpful additional information.

Caution: If this warning is ignored, faults ormalfunctions can result.Warning: If this warning is ignored, injury to persons and/orserious damage to the instrument can result.Danger: If this warning is ignored, serious injury to personsand/or destruction of the instrument can result.

Ex applicationsThis symbol indicates special instructions for Ex applications.

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

à ActionThis arrow indicates a single action.

1 SequenceNumbers set in front indicate successive steps in a procedure.

4 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

About this document

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2 For your safety2.1 Authorised personnelAll operations described in this operating instructions manualmust be carried out only by trained specialist personnelauthorised by the operator. For safety and warranty reasons,any internal work on the instruments must be carried out onlyby personnel authorised by the manufacturer.

2.2 Appropriate useOPTISWITCH 5200 C, 5250 C is a sensor for level detection.Detailed information on the application range of OPTISWITCH5200 C, 5250 C is available in chapter «Product description».

2.3 Warning about misuseInappropriate or incorrect use of the instrument can give rise toapplication-specific hazards, e.g. vessel overfill or damage tosystem components through incorrect mounting or adjustment.

2.4 General safety instructionsOPTISWITCH 5200 C, 5250 C is a high-tech instrumentrequiring the strict observance of standard regulations andguidelines. The user must take note of the safety instructions inthis operating instructions manual, the country-specific instal-lation standards (e.g. the VDE regulations in Germany) as wellas all prevailing safety regulations and accident preventionrules.

2.5 CE conformityOPTISWITCH 5200 C, 5250 C is in CE conformity with EMC(89/336/EWG), fulfils NAMUR recommendation NE 21 and isin CE conformity with LVD (73/23/EWG).Conformity has been judged according to the followingstandards:l EMC:

— Emission EN 61326/A1: 1998 (class B)- Susceptibility EN 61326: 1997/A1:1998

l LVD: EN 61010-1: 1993

OPTISWITCH 5200 C, 5250 C — with contactless electronic switch 5

For your safety

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2.6 SIL conformityOPTISWITCH 5200 C, 5250 C fulfills the requirements offunctional safety according to IEC 61508/IEC 61511. You canfind further information in the supplementary instructionsmanual «SafetyManual — Functional safety (SIL) OPTISWITCH5XXX».

2.7 Safety instructions for Ex areasPlease note the Ex-specific safety information for installationand operation in Ex areas. These safety instructions are part ofthe operating instructions manual and come with the Ex-approved instruments.

6 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

For your safety

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3 Product description3.1 ConfigurationThe scope of delivery encompasses:l OPTISWITCH 5200 C, 5250 C level sensorl Documentation

— this operating instructions manual- Ex specific safety instructions (with Ex versions), if

necessary further certificates

OPTISWITCH 5200 C, 5250 C consists of the followingcomponents:l Housing coverl Housing with electronicsl process fitting with tuning fork

1

2

3

Fig. 1: OPTISWITCH 5200 C, 5250 C with plastic housing1 Housing cover2 Housing with electronics3 Process fitting

3.2 Principle of operationOPTISWITCH 5200 C, 5250 C is a level sensor with tuningfork for level detection.

Scope of delivery

Components

Area of application

OPTISWITCH 5200 C, 5250 C — with contactless electronic switch 7

Product description

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It is designed for industrial use in all areas of processtechnology and can be used in liquids.Typical applications are overfill and dry run protection. With atuning fork of only 40 mm length, OPTISWITCH 5200 C, 5250C can be also mounted, e.g. in pipelines from DN 25. Thesmall tuning fork allows use in vessels, tanks and pipes.Thanks to its simple and robust measuring system, OPTI-SWITCH 5200 C, 5250 C is virtually unaffected by thechemical and physical properties of the liquid.It functions even under difficult conditions such as turbulence,air bubbles, foam generation, buildup, strong external vibrationor changing products.Fault monitoringThe electronics module of OPTISWITCH 5200 C, 5250 Ccontinuously monitors via frequency evaluation the followingcriteria:l Strong corrosion or damage on the tuning forkl loss of vibrationl Line break to the piezo driveIf a malfunction is detected or in case of power failure, theelectronics takes on a defined switching condition, i.e. thecontactless electronic switch opens (safe condition).The tuning fork is piezoelectrically energised and vibrates at itsmechanical resonance frequency of approx. 1200 Hz. Thepiezos are fixed mechanically and are hence not subject totemperature shock limitations. The frequency changes whenthe tuning fork is covered by the medium. This change isdetected by the integrated oscillator and converted into aswitching command.OPTISWITCH 5200 C, 5250 C is a compact instrument, i.e. itcan be operated without external evaluation system. Theintegrated electronics evaluates the level signal and outputs aswitching signal. With this switching signal, a connecteddevice can be directly activated (e.g. a warning system, a PLC,a pump etc.).The exact range of the power supply is stated in the «Technicaldata» in the «Supplement».

Physical principle

Power supply

8 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Product description

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3.3 OperationThe switching condition of OPTISWITCH 5200 C, 5250 C withplastic housing can be checked when the housing is closed(signal lamp). With the basic setting, products with a density>0.7 g/cm³ (>0.025 lbs/in³) can be detected. The instrumentcan be adapted if products with lower density should bemeasured.On the electronics module you will find the following indicatingand adjustment elements:l signal lamp for indication of the switching condition (green/

red)l DIL switch for sensitivity adjustmentl Mode switch for selection of the switching condition (A/B)

3.4 Storage and transportYour instrument was protected by packaging during transport.Its capacity to handle normal loads during transport is assuredby a test according to DIN 55439.The packaging of standard instruments consists of environ-ment-friendly, recyclable cardboard. In addition, the sensor isprovided with a protective cover of ABS. For special versionsPE foam or PE foil is also used. Dispose of the packagingmaterial via specialised recycling companies.

l Storage and transport temperature see «Supplement -Technical data — Ambient conditions»

l Relative humidity 20 … 85 %

Packaging

Storage and transport tem-perature

OPTISWITCH 5200 C, 5250 C — with contactless electronic switch 9

Product description

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4 Mounting4.1 General instructionsIn general, OPTISWITCH 5200 C, 5250 C can be mounted inany position. The instrument must be mounted in such a waythat the tuning fork is at the height of the requested switchingpoint.The tuning fork has lateral markings (notches), marking theswitching point with vertical mounting. The switching pointrefers to water with the basic setting of the sensitivity switch>=0.7 g/cm³ (>=0.025 lbs/in³). When mounting OPTISWITCH5200 C, 5250 C, make sure that this marking is at the height ofthe requested switching point. Keep in mind that the switchingpoint of the instrument is shifted if the medium has a densityother than water — water =1 g/cm³ (=0.036 lbs/in³). Forproducts <0.7 g/cm³ (<0.025 lbs/in³) and >0.5 g/cm³(>0.018 lbs/in³) the density switch must be set to >=0.5 g/cm³.

2

3

1 4

Fig. 2: Vertical mounting1 Switching point approx. 13 mm (approx. 0.51 in)2 Switching point with lower density3 Switching point with higher density4 Switching point approx. 27 mm (approx. 1.06 in)

Switching point

10 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Mounting

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Fig. 3: Horizontal mounting1 Switching point

12

Fig. 4: Horizontal mounting (recommended installation location — particularly foradhesive products)1 Switching point2 Marking with screwed version on top — with flange versions directed to the

flange holes

With flange versions, the fork is directed to the flange holes inthe following way.

Fig. 5: Fork position with flange versions

Use the recommended cables (see chapter «Connecting topower supply») and tighten the cable gland.You can give your OPTISWITCH 5200 C, 5250 C additionalprotection against moisture penetration by leading the con-nection cable downward in front of the cable entry. Rain and

Moisture

OPTISWITCH 5200 C, 5250 C — with contactless electronic switch 11

Mounting

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condensation water can thus drain off. This applies mainly tomounting outdoors, in areas where moisture is expected (e.g.by cleaning processes) or on cooled or heated vessels.

Fig. 6: Measures against moisture penetration

Do not hold OPTISWITCH 5200 C, 5250 C on the tuning fork.Particularly with flange or tube versions, the tuning fork can bedamaged by the instrument weight. Transport coated instru-ments very carefully and avoid touching the tuning fork.Remove the protective cover just before mounting.The process fitting must be sealed if there is gauge or lowpressure in the vessel. Before use, check if the seal material isresistant against the measured product and the processtemperature.The max. permissible pressure is stated in the «Technicaldata» in the «Supplement» or on the type label of the sensor.The vibrating level switch is a measuring instrument and mustbe treated accordingly. Bending the vibrating element willdestroy the instrument.

Warning:The housing must not be used to screw in the instrument!Applying tightening force on the housing can damage itsinternal mechanical parts.To screw in, use the hexagon above the thread.

Transport

Pressure/Vacuum

Handling

12 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Mounting

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4.2 Mounting instructionsOPTISWITCH 5200 C, 5250 C has a defined thread startingpoint. This means that every OPTISWITCH 5200 C, 5250 C isin the same fork position after being screwed in. Removetherefore the supplied seal from the thread of OPTISWITCH5200 C, 5250 C. This seal is not required when using a weldedsocket with O-ring in front.Keep in mind that this welded socket is not suitable for coatedinstrument versions.Screw OPTISWITCH 5200 C, 5250 C completely into thewelded socket. The later position can be determined alreadybefore welding. Mark the appropriate position of the weldedsocket. Before welding, unscrew OPTISWITCH 5200 C, 5250C and remove the rubber ring from the welded socket. Thewelded socket has a marking (notch).Weld the socket with thenotch facing upward, or in case of pipelines, aligned with thedirection of flow.

1

Fig. 7: Marking on the welded socket1 Marking

In case of horizontal mounting in adhesive and viscousproducts, the surfaces of the tuning fork should be vertical inorder to reduce buildup on the tuning fork. On the screwedversion you will find a marking on the hexagon. With this, youcan check the position of the tuning fork when screwing it in.When the hexagon touches the seal, the thread can still beturned by approx. half a turn. This is sufficient to reach therecommended installation position.With flange versions, the fork is directed to the flange holes.

Welded socket

Adhesive products

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Mounting

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When used in adhesive and viscous products, the tuning forkshould protrude into the vessel to avoid buildup. For thatreason, sockets for flanges and mounting bosses should beavoided when mounting horizontally.If OPTISWITCH 5200 C, 5250 C is mounted in the fillingstream, unwanted switching signals may be generated. MountOPTISWITCH 5200 C, 5250 C at a location in the vesselwhere no disturbing influence from e.g. filling openings,agitators etc. can occur.This applies particularly to instrument types with longextension tube.

Fig. 8: Inflowing medium

To minimise flow resistance caused by the tuning fork,OPTISWITCH 5200 C, 5250 C should be mounted in such away that the surfaces of the blades are parallel to the productmovement.Due to agitators, vibrations or similar, the level switch can besubjected to strong lateral forces. For this reason, do not usean overly long extension tube for OPTISWITCH 5200 C, 5250C, but check if you can mount an OPTISWITCH 5100 C,5150 C level switch on the side of the vessel in horizontalposition.Extreme vibration caused by the process or the equipment, e.g. agitators or turbulence in the vessel can cause the extensiontube of OPTISWITCH 5200 C, 5250 C to vibrate in resonance.This leads to increased stress on the upper weld joint. Should

Inflowing medium

Flows

Agitators

14 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Mounting

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a longer tube version be necessary, you can provide a suitablesupport or guy directly above the tuning fork to secure theextension tube.This measure applies particularly to applications in Ex areascategory 1G or WHG. Make sure that the tube is not bent bythis measure.

Fig. 9: Lateral straining of OPTISWITCH 5200 C, 5250 C

OPTISWITCH 5200 C, 5250 C — with contactless electronic switch 15

Mounting

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5 Connecting to voltage supply5.1 Preparing the connectionGenerally not the following safety instructions:l Connect only in the complete absence of line voltageIn hazardous areas you should take note of the appropriateregulations, conformity and type approval certificates of thesensors and power supply units.

Connect the power supply according to the following diagrams.Oscillator SWE60C is designed in protection class 1. Tomaintain this protection class, it is absolutely necessary thatthe ground conductor be connected to the internal groundterminal. Take note of the general installation regulations. As arule, connect OPTISWITCH 5200 C, 5250 C to vessel ground(PA), or in case of plastic vessels, to the next ground potential.On the side of the housing there is a ground terminal betweenthe cable entries. This connection serves to drain off electro-static charges. In Ex applications, the installation regulationsfor hazardous areas must be given priority.The data for power supply are stated in the «Technical data» inthe «Supplement».OPTISWITCH 5200 C, 5250 C is connected with standardcable with round cross-section. An outer cable diameter of5 … 9 mm (0.2 … 0.35 in) ensures the seal effect of the cableentry.If cable with a different diameter or wire cross section is used,exchange the seal or use an appropriate cable connection.In hazardous areas, only use approved cable connections forOPTISWITCH 5200 C, 5250 C.

Take note of the corresponding installation regulations for Exapplications.

5.2 Connection stepsWith Ex instruments, the housing cover may only be opened ifthere is no explosive atmosphere present.

Proceed as follows:

Note safety instructions

Take note of safetyinstructions for Exapplications

Select power supply

Selecting the connection ca-ble

Select connectioncable for Ex applica-tions

16 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Connecting to voltage supply

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1 Unscrew the housing cover2 Loosen compression nut of the cable entry3 Remove approx. 10 cm (4 in) of the cable mantle, strip

approx. 1 cm (0.4 in) insulation from the ends of theindividual wires

4 Insert the cable into the sensor through the cable entry5 Open the terminals with a screwdriver6 Insert the wire ends into the open terminals according to

the wiring plan7 Tighten the terminals with a screwdriver8 Check the hold of the wires in the terminals by lightly

pulling on them9 Tighten the compression nut of the cable entry, the seal

ring must completely encircle the cable10 Screw the housing cover back onThe electrical connection is hence finished.

5.3 Wiring plan, single chamber housingThe following illustrations apply to the non-Ex as well as to theEEx d version.

1

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2 3

Fig. 10: Material versions, single chamber housing1 Plastic (not with EEx d)2 Aluminium3 Stainless steel (not with EEx d)4 Filter element for pressure compensation (not with EEx d)

Housing overview

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Connecting to voltage supply

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SW E60C

2 0 — 2 5 3 V A C / D Cm a x 4 0 0 m A

A

B

LN

L N

1 2

0,5 g / cm3

0,7 g / cm3

++

1 21 2

3

5

1

2

4

Fig. 11: Electronics and connection compartment, single chamber housing1 Control lamp2 DIL switch for mode adjustment3 DIL switch for switching point adaptation4 Ground terminal5 Screwed terminals

We recommend connecting OPTISWITCH 5200 C, 5250 C insuch a way that the switching circuit is open when there is alevel signal, line break or failure (safe condition).The contactless electronic switch is always shown in non-operative condition.The instrument is used for direct control of relays, contactors,magnet valves, warning lights, horns etc. It must not beoperated without an intermediately connected load, becausethe electronics would be destroyed if connected directly to themains. It is not suitable for connection to low voltage PLCinputs.Domestic current is temporarily lowered below 1 mA afterswitching off the load so that contactors, whose holding currentis lower than the constant domestic current of the electronics,are reliably switched off.When OPTISWITCH 5200 C, 5250 C is used as part of anoverfill protection system acc. to WHG, also note theregulations of the general type approval.

Electronics and connectioncompartment

Wiring plan

18 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Connecting to voltage supply

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1 2

AC

DC

L1

+-

N

-+

Fig. 12: Wiring plan, single chamber housing

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Connecting to voltage supply

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6 Set up6.1 GeneralThe numbers in brackets refer to the following illustrations.The switching condition of the electronics can be checked onthe plastic housing with closed housing cover (control lamp). Inthe basic setting, products with a density >0.7 g/cm³(>0.025 lbs/in³) can be detected. For products with lowerdensity, the switch must be set to >0.5 g/cm³ (>0.018 lbs/in³).On the electronics module you will find the following indicatingand adjustment elements:l Signal lamp (1)l DIL switch for mode adjustment — A/B (2)l DIL switch for sensitivity adjustment (3)Note:For test purposes, immerse the tuning fork of OPTISWITCH5200 C, 5250 C always in liquids. Do not test the function ofOPTISWITCH 5200 C, 5250 C with the hand. This candamage the sensor.

6.2 Adjustment elements

12

123

Fig. 13: Oscillator SWE60C — Contactless electronic switch1 Signal lamp (LED)2 DIL switch for mode adjustment3 DIL switch for sensitivity adjustment

Function/Configuration

20 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Set up

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Control lamp (LED) for indication of the switching conditionl green = output conductsl red = output blocksl red (flashing) = failureWith the mode adjustment (A/B) you can change the switchingcondition of the relay. You can set the required mode acc. tothe «Function chart» (A — max. detection or overfill protection, B- min. detection or dry run protection).With this DIL switch (3) you can set the switching point toliquids having a density between 0.5 and 0.7 g/cm³ (0.018 and0.025 lbs/in³). With the basic setting, liquids with a density of>0.7 g/cm³ (>0.025 lbs/in³) can be detected. In liquids withlower density, you must set the switch to >0.5 g/cm³(>0.018 lbs/in³). The specifications for the position of theswitching point relate to water — density value 1.0 g/cm³(0.036 lbs/in³). In products with a different density, theswitching point will shift in the direction of the housing or tuningfork end depending on the density and type of installation.

6.3 Function chartThe following chart provides an overview of the switchingconditions depending on the adjusted mode and level.

Level Switching status Control lampMode AOverfill protection

21

Switch closed GreenMode AOverfill protection

21

Switch open redMode BDry run protection

21

Switch closed GreenMode BDry run protection

21

Switch open red

Signal lamp (1)

Mode adjustment (2)

Sensitivity adjustment (3)

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Set up

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Level Switching status Control lampFailure of the sup-ply voltage(mode A/B)

any

21

Switch openFailure any

21

Switch open flashes red

22 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

Set up

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7 Maintenance and fault rectification7.1 MaintenanceWhen used as directed in normal operation, OPTISWITCH5200 C, 5250 C is completely maintenance free.

7.2 Rectify faultsOPTISWITCH 5200 C, 5250 C offers maximum reliability.Nevertheless faults can occur during operation. These may becaused by the following, e.g.:l Sensorl Processl Power supplyl Signal processingThe first measure to be taken is to check the output signal. Inmany cases, the causes can be determined this way and thefaults rectified.? OPTISWITCH 5200 C, 5250 C signals «covered» when the

vibrating element is not submerged (overfill protection)? OPTISWITCH 5200 C, 5250 C signals «uncovered» when

the vibrating element is submerged (dry run protection)l Supply voltage too lowà Check the power supplyl Electronics defectiveà Press the mode switch (min./max.). If the instrument

then changes the mode, the instrument may bemechanically damaged. Should the switching functionin the correct mode still be faulty, return the instrumentfor repair.

à Push the mode switch. If the instrument then does notchange the mode, the oscillator may be defective.Exchange the oscillator.

à Check if there is buildup on the vibrating element, and ifso, remove it.

l Unfavourable installation locationà Mount the instrument at a location in the vessel where

no dead zones or air bubbles can form.

Causes of malfunction

Fault rectification

Checking the switching signal

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Maintenance and fault rectification

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l Wrong mode selectedà Set the correct mode on the mode switch (max.: overfill

protection; min.: dry run protection). Wiring should becarried out according to the quiescent current principle.

? Signal lamp flashes redl Electronics has detected a failureà Exchange instrument or return instrument for repair

? The signal lamp flashes alternately red and greenl instrument defectiveà Exchange instrument or return instrument for repair

7.3 Instrument repairIf a repair is necessary, please proceed as follows:You can download a return form from our website http://www.krohne-mar.com/fileadmin/media-lounge/PDF-Download/Specimen_e.pdf.By doing this you help us carry out the repair quickly andwithout having to call back for needed information.l Print and fill out one form per instrumentl Clean the instrument and pack it damage-proofl Attach the completed form and possibly also a safety data

sheet to the instrument

24 OPTISWITCH 5200 C, 5250 C — with contactless electronic switch

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8 Dismounting8.1 Dismounting procedureWarning:Before dismounting, be aware of dangerous process con-ditions such as e.g. pressure in the vessel, high temperatures,corrosive or toxic products etc.

Take note of chapters «Mounting» and «Connecting to powersupply» and carry out the listed steps in reverse order.With Ex instruments, the housing cover may only be opened ifthere is no explosive atmosphere present.

8.2 DisposalThe instrument consists of materials which can be recycled byspecialised recycling companies. We use recyclable materialsand have designed the electronic modules to be easilyseparable.WEEE directive 2002/96/EGThis instrument is not subject to the WEEE directive 2002/96/EG and the respective national laws (in Germany, e.g.ElektroG). Pass the instrument directly on to a specialisedrecycling company and do not use the municipal collectingpoints. These may be used only for privately used productsaccording to the WEEE directive.Correct disposal avoids negative effects to persons andenvironment and ensures recycling of useful raw materials.Materials: see «Technical data»If you cannot dispose of the instrument properly, pleasecontact us about disposal methods or return.

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Dismounting

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9 Supplement9.1 Technical dataGeneral dataMaterial 316L corresponds to 1.4404 or 1.4435Materials, wetted parts- Process fitting — thread 316L, Hastelloy C4 (2.4602)- Process fitting — flange 316L, 316L with Hastelloy C4 plated, 316L with

ECTFE coated, 316L with PFA coated- Process seal Klingersil C-4400- Tuning fork 316L, Hastelloy C4 (2.4610)- Extension tube ø 21.3 mm (0.84 in) 316L, Hastelloy C4 (2.4610), 316L with ECTFE

coating, 316L with PFA coatingMaterials, non-wetted parts- Housing Plastic PBT (Polyester), Alu die-casting pow-

der-coated, 316L- Seal ring between housing and

housing coverNBR (stainless steel housing), silicone (Alu/plastic housing)

— waveguide in the housing cover PMMA (Makrolon)- Ground terminal 316L- Temperature adapter (optional) 316L- Gas-tight leadthrough (optional) 316L/glassLengths- 316L, Hastelloy C4 (2.4610) 80 … 6000 mm (3 … 236 in)- 316L, ECTFE coated 80 … 3000 mm (3 … 118 in)- 316L, PFA coated 80 … 3000 mm (3 … 118 in)Weights- Plastic housing 760 g (27 oz)- Aluminium housing 1170 g (41 oz)- Stainless steel housing 1530 g (54 oz)- Tube extension approx. 110 g/m (1.2 oz/ft)Layer thickness- ECTFE approx. 0.5 mm (approx. 0.02 in)- PFA approx. 0.5 mm (approx. 0.02 in)

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Surface quality- Standard Ra approx. 3 µm (approx. 1.18-4 in)- Hygienic version 3A (OPTISWITCH

5250 C)Ra <0.8 µm (<3.15-5 in)

Process fittings- Thread G¾ A, ¾ NPT, G1 A, 1 NPT- Flanges DIN from DN 25, ANSI from 1″- hygienic fittings Bolting DN 40 PN 40, Tri-Clamp 1″, Tri-Clamp

1½» PN 10, conus DN 25 PN 40, TuchenhagenVarivent DN 50 PN 10

Gas-tight leadthrough (optional)- leakage rate <10-6 mbar l/s- pressure resistance PN 64- hygienic fittings Bolting DN 40 PN 40, Tri-Clamp 1″, Tri-Clamp

1½» PN 10, conus DN 25 PN 40, TuchenhagenVarivent DN 50 PN 10

Output variableOutput Contactless electronic switchModes (adjustable)- A Max. detection or overflow/overfill protection- B Min. detection or dry run protection

Measuring accuracyHysteresis approx. 2 mm (0.08 in) with vertical installationIntegration time approx. 500 msFrequency approx. 1200 Hz

Ambient conditionsAmbient temperature on the housing -40 … +70 °C (-40 … +158 °F)Storage and transport temperature -40 … +80 °C (-40 … +176 °F)

Process conditionsParameter Limit level of liquidsProcess pressure -1 … 64 bar (-14.5 … 938 psi) depending on

the process fitting, e.g. flange

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OPTISWITCH 5200 C, 5250 C of 316L/Hastelloy C4 (2.4610)

-50 … +150 °C (-58 … +302 °F)

Process temperature (thread or flangetemperature) with temperature adapter(option)- OPTISWITCH 5200 C, 5250 C of

316L/Hastelloy C4-50 … +250 °C (-58 … +482 °F)

— OPTISWITCH 5200 C, 5250 C withECTFE coating

-50 … +150 °C (-58 … +302 °F)

— OPTISWITCH 5200 C, 5250 C withPFA coating

-50 … +150 °C (-58 … +302 °F)

1

23

-50˚C(-58˚F)

50˚C(122˚F)

40˚C(104˚F)

-40˚C(-40˚F)

70˚C(158˚F)

0˚C(32˚F)

100˚C(212˚F)

150˚C(302˚F)

200˚C(392˚F)

250˚C(482˚F)

Fig. 14: Ambient temperature — Product temperature1 Product temperature2 Ambient temperature3 Temperature range with temperature adapter

Viscosity — dynamic 0.1 … 10,000 mPa s (requirement: with density1)

Density 0.7 … 2.5 g/cm³ (0.025 … 0.09 lbs/in³);0.5 … 2.5 g/cm³ (0.018 … 0.09 lbs/in³) byswitching over

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Electromechanical dataCable entry/plug (dependent on the version)- Single chamber housing l 1x cable entryM20x1.5 (cable-ø 5… 9mm),

1x blind stopper M20x1.5, attached 1xcable entry M20x1.5

or:l 1x cable entry ½ NPT, 1x blind stopper

½ NPT, 1x cable entry ½ NPTor:l 1x plug M12x1, 1x blind stopper M20x1.5

Screw terminals for wire cross-section up to 1.5 mm²(0.0023 in²)

Adjustment elementsMode switch- A Max. detection or overflow/overfill protection- B Min. detection or dry run protectionDensity switch- 0.5 0.5 … 2.5 g/cm³ (0.018 … 0.9 oz/in³)- 0.7 0.7 … 2.5 g/cm³ (0.025 … 0.9 oz/in³)

Voltage supplySupply voltage 20 … 253 V AC, 50/60 Hz, 20 … 253 V DCDomestic current requirement approx. 3 mA (via load circuit)Load current- min. 10 mA- max. 400 mA (with I> 300 mA the ambient temper-

ature can be max. 60 °C) max. 4 A up to 40 ms(not WHG specified)

Electrical protective measuresProtection IP 66/IP 67Overvoltage category IIIProtection class I

Approvals1)

ATEX II 1/2G, 2G EExd d IIC T62)

1) Deviating data in Ex applications: see separate safety instructions.2) Only with Aluminium housing.

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Overfill protection acc. to WHGShip approvals

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9.2 Dimensions

OPTISWITCH 5200 C, 5250 C

112m

m(4

13 /

32″)

117m

m(4

39 /

64″)

114m

m(4

31 /

64″)

~ 69mm(2 23/32″) ø 77mm

(3 1/32″)

~ 69mm(2 23/32″)

~ 116mm(4 9/16″)ø 77mm

(3 1/32″)ø 84mm(3 5/16″)

M20x1,5½

M20x1,5/½ NPT

M20x1,5/½ NPT

1 2 3

Fig. 15: Housing versions1 Plastic housing2 Stainless steel housing3 Aluminium housing

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OPTISWITCH 5200 C, 5250 C

G3/4A, 3/4″NPTG1A, 1″NPT

18,5

mm

(47 /

64″)

L

L

LL

L

32 (G3/4A, 3/4″NPT)41 (G1A, 1″NPT)

57m

m(2

1 /4″

)

50m

m(1

31/ 3

2″) ø33,7mm

(1 21/64″)

36m

m (1

27/ 6

4″)

19m

m(3

/ 4″)

34m

m (1

11/ 3

2″)

175m

m (6

57/ 6

4″)

4 5

6

1 2 3

7

Fig. 16: OPTISWITCH 5200 C, 5250 C, threaded version1 Thread2 Tri-Clamp3 Cone DN 254 Bolting DN 405 Flange6 Gas-tight leadthrough7 Temperature adapterL = Sensor length, see «Technical data»

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Subject to change without notice

30433-EN-060831