WIKA RLS-1000 Bedienungsanleitung

DE

EN

ES

FR

Model RLS-1000

mounting thread, angular connector

Model RLS-2000

cable outlet

Model RLS-5000

Bilge oat switch

Operating instructions

Betriebsanleitung

Mode d‘emploi

Manual de instrucciones

Float switch, models RLS-1000, RLS-2000, RLS-3000,

RLS-5000, RLS-6000

Schwimmerschalter, Typen RLS-1000, RLS-2000,

RLS-3000, RLS-5000, RLS-6000

Détecteur de niveau à otteur, types RLS-1000, RLS-2000,

RLS-3000, RLS-5000, RLS-6000

Interruptor de otador, modelos RLS-1000, RLS-2000,

RLS-3000, RLS-5000, RLS-6000

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WIKA operating instructions models RLS

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EN

ES

FR

Operating instructions models RLS-1000,

RLS-2000, RLS-3000, RLS-5000, RLS-6000 Page 3 - 24

Betriebsanleitung Typen RLS-1000,

RLS-2000, RLS-3000, RLS-5000, RLS-6000 Seite 25 - 46

Mode d‘emploi types RLS-1000, RLS-2000,

RLS-3000, RLS-5000, RLS-6000 Page 47 - 68

Manual de instrucciones modelos RLS-1000,

RLS-2000, RLS-3000, RLS-5000, RLS-6000 Página 69 - 89

WIKA

®

is a registered trademark in various countries.

WIKA

®

ist eine geschützte Marke in verschiedenen Ländern.

Prior to starting any work, read the operating instructions!

Keep for later use!

Vor Beginn aller Arbeiten Betriebsanleitung lesen!

Zum späteren Gebrauch aufbewahren!

Lire le mode d‘emploi avant de commencer toute opération !

A conserver pour une utilisation ultérieure !

¡Leer el manual de instrucciones antes de comenzar cualquier trabajo!

¡Guardar el manual para una eventual consulta!

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Declarations of conformity can be found online at www.wika.com.

Contents

1. General information 4

2. Design and function 5

3. Safety 6

4. Transport, packaging and storage 11

5. Commissioning, operation 11

6. Faults 17

7. Maintenance and cleaning 18

8. Dismounting, return and disposal 19

9. Specications 20

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4 WIKA operating instructions models RLS

1. General information

■

The oat switches described in the operating instructions have

been designed and manufactured using state-of-the-art technology.

All components are subject to stringent quality and environmental

criteria during production. Our management systems are certied to

ISO 9001 and ISO 14001.

■

These operating instructions contain important information on

handling the instrument. Working safely requires that all safety

instructions and work instructions are observed.

■

Observe the relevant local accident prevention regulations and

general safety regulations for the instrument’s range of use.

■

The operating instructions are part of the product and must be kept

in the immediate vicinity of the instrument and readily accessible to

skilled personnel at any time. Pass the operating instructions on to

the next operator or owner of the instrument.

■

Skilled personnel must have carefully read and understood the

operating instructions prior to beginning any work.

■

The general terms and conditions contained in the sales

documentation shall apply.

■

Subject to technical modications.

■

Further information:

- Internet address: www.wika.de / www.wika.com

- Relevant data sheet: LM 50.03 (model RLS-1000)

LM 50.04 (model RLS-2000)

LM 50.06 (model RLS-3000)

LM 50.08 (model RLS-5000)

LM 50.09 (model RLS-6000)

- Application consultant: Tel.: +49 9372 132-0

Fax: +49 9372 132-406

[email protected]

1. General information

EN

≤ 30°













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2. Design and function

2.1 Functional description

Float switches work on the oat principle with magnetic transmission.

A reed contact integrated in the guide tube  is actuated through the

magnetic eld of a permanent magnet, when a preset switch point

is reached. The permanent magnet is located within a oat , which

changes its height with the level of the medium it is monitoring. The

switching status of the reed contact can be evaluated and processed by

a connected control device.

The number and arrangement of oats is dependent on the number of

the dened switch points, their contact function and also the distance

between the switch points.



Connection housing



Cable bushing



Mounting thread



Guide tube



Float stop



Float

2.2 Scope of delivery

■

Float switch

■

Operating instructions

Cross-check scope of delivery with delivery note.

2. Design and function

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3. Safety

3.1 Explanation of symbols

DANGER!

... indicates a directly dangerous situation resulting in serious

injury or death, if not avoided.

WARNING!

... indicates a potentially dangerous situation that can result

in serious injury or death, if not avoided.

CAUTION!

... indicates a potentially dangerous situation that can result

in light injuries or damage to property or the environment, if

not avoided.

Information

... points out useful tips, recommendations and information

for ecient and trouble-free operation.

3.2 Intended use

Float switches are used exclusively for monitoring the levels of liquid

media. The scope of application is dened by the technical performance

limits and materials.

■

The liquids must not have any large contamination or coarse particles

and must not have a tendency to crystallise. Ensure that the wetted

materials of the oat switch are suciently resistant to the medium

being monitored. Not suitable for dispersions, abrasive liquids, highly

viscous media and colours.

3. Safety

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■

This instrument is not permitted to be used in hazardous areas!

In hazardous areas, check the usability of the model RLS-4000

intrinsically safe oat switch.

■

The operating conditions specied in the operating instructions must

be observed.

■

Do not operate the instrument in the direct vicinity of ferromagnetic

environments (min. distance 100 mm).

■

Do not operate the instrument in the immediate vicinity of strong

electromagnetic elds or in the immediate vicinity of equipment that

can be aected by magnetic elds (min. clearance 1 m).

■

The oat switches must not be exposed to heavy mechanical strain

(impact, bending, vibration).

■

The technical specications contained in these operating instructions

must be observed. Improper handling or operation of the instrument

outside of its technical specications requires the instrument to be

taken out of service immediately and inspected by an authorised

WIKA service engineer.

The instrument has been designed and built solely for the intended use

described here, and may only be used accordingly.

The manufacturer shall not be liable for claims of any type based on

operation contrary to the intended use.

DANGER!

Work on containers involves the danger of intoxication and

suocation. No work is allowed to be carried out unless by

taking suitable personal protective measures (e.g. respiratory

protection apparatus, protective outt etc.).

3. Safety

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3.3 Improper use

Improper use is dened as any application that exceeds the technical

performance limits or is not compatible with the materials.

WARNING!

Injuries through improper use

Improper use of the instrument can lead to hazardous

situations and injuries.

▶

Refrain from unauthorised modifications to the instrument.

▶

Do not use the instrument within hazardous areas.

Any use beyond or dierent to the intended use is considered as

improper use.

Do not use this instrument in safety or emergency stop devices.

3.4 Responsibility of the operator

The instrument is used in the industrial sector. The operator is therefore

responsible for legal obligations regarding safety at work.

The safety instructions within these operating instructions, as well as the

safety, accident prevention and environmental protection regulations for

the application area must be maintained.

To ensure safe working on the instrument, the operating company must

ensure

■

that suitable rst-aid equipment is available and aid is provided

whenever required.

■

that the operating personnel are regularly instructed in all topics

regarding work safety, rst aid and environmental protection

and know the operating instructions and in particular, the safety

instructions contained therein.

■

that the instrument is suitable for the particular application in

accordance with its intended use.

■

that following testing, improper use of the instrument is excluded.

3. Safety

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3.5 Personnel qualication

WARNING!

Risk of injury should qualication be insucient

Improper handling can result in considerable injury and

damage to equipment.

▶

The activities described in these operating instructions

may only be carried out by skilled personnel who have the

qualifications described below.

Skilled personnel

Skilled personnel, authorised by the operator, are understood to

be personnel who, based on their technical training, knowledge

of measurement and control technology and on their experience

and knowledge of country-specic regulations, current standards

and directives, are capable of carrying out the work described and

independently recognising potential hazards.

3.6 Personal protective equipment

The personal protective equipment is designed to protect the skilled

personnel from hazards that could impair their safety or health during

work. When carrying out the various tasks on and with the instrument,

the skilled personnel must wear personal protective equipment.

Follow the instructions displayed in the work area regarding

personal protective equipment!

The requisite personal protective equipment must be provided by the

operating company.

3. Safety

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3.7 Labelling, safety marks

Product label (example)

3. Safety



Model



P# product number

S# serial number



Electrical connection

Before mounting and commissioning the instrument, ensure

you read the operating instructions!







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4. Transport, packaging and storage

4.1 Transport

Check the oat switch for any damage that may have been caused by

transport. Obvious damage must be reported immediately.

CAUTION!

With improper transport, a high level of damage to property

can occur.

▶

Observe the symbols on the packaging.

▶

Handle packed goods with care.

4.2 Packaging and storage

Do not remove packaging until just before commissioning.

Permissible conditions at the place of storage:

Storage temperature: -30 … +80 °C (-22 … +176 °F)

5. Commissioning, operation

■

Observe all instructions given on the shipment packaging for

removing the transportation safety devices.

■

Remove the oat switch carefully from the packaging!

■

When unpacking, check all components for any external damage.

5.1 Mounting preparation

Functional check

Before mounting, the oat switch can be connected as

described in chapter 5.3 and the switch points can be

operated manually.

WARNING!

Ensure that the functional check does not start any

unintended processes.

4. Transport ... / 5. Commissioning, operation

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Ensure that the sealing faces of the vessel or oat switch are clean and

do not show any mechanical damage.

5.2 Mounting

■

Observe the torque values of screws specied in pipetting work.

■

In the selection of the mounting material (sealings, screws, washers

and nuts), take the process conditions into account. The suitability

of the sealing must be specied with regard to the medium and

its vapours. In addition, ensure it has corresponding corrosion

resistance.

■

Mount the oat switch either via mounting thread  or mounting

ange (not illustrated).

■

The guide tube  should not be inclined more than a maximum of

30° to the vertical.

■

If the geometry of the oat does not t through the process

connection, the oat must be removed before mounting.

- For this, before removal, mark

the position of the oat stops

 with a waterproof pen

- Mark the mounting position of

the oats (e.g. “Up”)

- After the oat switch has been

mounted, the oat should be

re-attached within the inside of

the tank (pay attention to the

mounting position!).

- Float stops  must then be

re-attached at the marked

points.

■

The number of oats and also

the position of the oat stops are

dependent upon the dimension

and the number of switch points.

≤ 30°













5. Commissioning, operation

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5.3 Electrical connection

■

The electrical connection must only be made by qualied skilled

personnel.

■

Connection details and switching functions are given on the

connection diagram. Connection terminals are appropriately marked.

■

Seal the cable bushing  at the connection housing  (see

illustration in chapter 5.2 “Mounting”).

■

The mains connection lines to be provided must be dimensioned

for maximum instrument current supply and comply with IEC 227 or

IEC 245.

WARNING!

Electrical connection errors of the oat switches can destroy

the reed contacts. This can lead to a malfunction in the plant

and thus lead to injury to personnel or damage to equipment.

▶

No direct operation in circuits with inductive loads.

▶

No direct operation in circuits with capacitive loads, e.g.

PLC, PCS or cable lengths > 50 m.

▶

Do not exceed the permissible switching power.

DANGER!

Physical injuries

With oat switches with connection cable without protective

conductor connection, it is possible for the switch to become

live in the event of a malfunction. Any contact can result in

physical or even fatal injury.

▶

Only operate these switches at safety extra-low voltage

in accordance with VDE0100 or fit them so that the float

switch is electrically connected to the equipotential

bonding.

5. Commissioning, operation

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5. Commissioning, operation

Electrical protection class

Depending on the electrical connection, the instruments are designed in

protection class I or II. The appropriate protection class of the electrical

connection is given in the respective data sheet.

■

Protection class I

Include the instrument into the grounding concept of the installation.

Ensure that the electrical connection is made via a protective

conductor connection.

Depending on the instrument variant:

- Directly via the PE stranded wire for instruments with cable outlet

- Via the grounding pin (pin 4) for instruments with electrical

connection per DIN 175301-803-A

- Via screw (6-32 UNC x 1/4") near the connection terminals

Note: Use a conductor with a sucient cross-section and a ring

lug matching the cross-section. The connection shall be corrosion-

resistant and locked against rotation.

■

Protection class II

Protective insulation, no protective conductor connection

Specications of connection terminals:

Connection capacity (single-wire): 0.34 ... 2.5 mm² (28 ...12 AWG)

Connection capacity (multi-wire): 0.34 ... 2.5 mm² (28 ...12 AWG)

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Connection with inductive load

With inductive loads, the oat switches should be protected by

connection to an RC element or a free-wheeling diode.

Protective RC elements

Depending on the operating voltage, use RC elements exclusively in

accordance with the table below. RC elements other than those specied

here will lead to the destruction of the reed switch.

RC elements for reed contacts 10 ... 40 VA

Voltage Resistance Capacitance Type of RC element

AC 24 V 100 Ω 0.33 μF A 3/24

AC 48 V 220 Ω 0.33 μF A 3/48

AC 115 V 470 Ω 0.33 μF A 3/115

AC 230 V 1,500 Ω 0.33 μF A 3/230

RC elements for reed contacts 40 ... 100 VA

Voltage Resistance Capacitance Type of RC element

AC 24 V 47 Ω 0.33 μF B 3/24

AC 48 V 100 Ω 0.33 μF B 3/48

AC 115 V 470 Ω 0.33 μF B 3/115

AC 230 V 1,000 Ω 0.33 μF B 3/230

RC element,

see table

S1

AC 24 ... 230 V

R

C

S1

DC 24 ... 230 V

+

–

AC voltage DC voltage

Free-

wheeling

diode, e.g.

1N4007

5. Commissioning, operation

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Connection with capacitive load

To increase the service life of the contacts, we recommend

operation with a contact protection relay.

Connection diagrams, see product label

5.4 Commissioning

Switch on the voltage supply of the connected control device. Fill the

vessel and the check the switch points of the oat switch for function.

WARNING!

Ensure that the functional check does not start any

unintended processes.

Always observe the mounting and operating instructions of accessories

when commissioning them.

R

S

= 220 Ω (for AC 230 V)

C₁ = internal capacitance

S1 R

S

+

–

C

1

AC 230 V

AC voltage current limitation

e.g. for electronic time relay

Relay

R

S

= 22 Ω (47 Ω for contacts ≤ 10 VA)

C₁ = internal capacitance

S1 R

S

+

–

C

1

DC 24 V

Current limitation, DC voltage

e.g. for PLC, PCS and cables > 50 m

PLC

5. Commissioning, operation

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6. Faults

The following table contains the most frequent causes of

faults and the necessary countermeasures.

Faults Causes Measures

Float switch

cannot be

mounted at the

planned place on

the vessel

Process connection of the

oat switch does not match

the process connection of the

vessel.

Modication of the vessel

Return to the factory

Process connection at the

vessel defective

Rework the thread or

replace the screwed

coupling

No or undened

switching function

Electrical connection incorrect See chapter 5.3 “Electrical

connection”. Check

assignment with the aid of

the connection diagram.

Temperature contact defective Functional check of the

oat switch, return to the

manufacturer

Reed contact defective

CAUTION!

Physical injuries and damage to property and the

environment

If faults cannot be eliminated by means of the listed

measures, the instrument must be taken out of operation

immediately.

▶

Ensure that there is no longer any pressure present and

protect against being put into operation accidentally.

▶

Contact the manufacturer.

▶

If a return is needed, please follow the instructions given

in chapter 8.2 “Return”.

6. Faults

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7. Maintenance and cleaning

7.1 Maintenance

When used properly, the oat switches work maintenance-free. They

must be subjected to visual inspection within the context of regular

maintenance, however, and included in the vessel pressure test.

DANGER!

Work on containers involves the danger of intoxication and

suocation. No work is allowed to be carried out unless by

taking suitable personal protective measures (e.g. respiratory

protection apparatus, protective outt etc.).

Repairs must only be carried out by the manufacturer.

Perfect functioning of the oat switches can only be

guaranteed when original accessories and spare parts are

used.

7.2 Cleaning

CAUTION!

Physical injuries and damage to property and the

environment

Improper cleaning may lead to physical injuries, damage

to property and the environment and to damage to the

instrument. Residual media in the dismounted instrument can

result in a risk to persons, the environment and equipment.

▶

Rinse or clean the removed instrument.

▶

Sufficient precautionary measures must be taken.

▶

Do not use any aggressive cleaning agents.

▶

Do not use any pointed and hard objects for cleaning.

1. Prior to cleaning, properly disconnect the instrument from the process

and the power supply.

2. Clean the instrument carefully with a moist cloth.

3. Electrical connections must not come into contact with moisture!

7. Maintenance and cleaning

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8. Dismounting, return and disposal

WARNING!

Physical injuries and damage to property and the

environment through residual media

Residual media in the dismounted instrument can result in a

risk to persons, the environment and equipment.

▶

Wash or clean the dismounted instrument, in order to

protect persons and the environment from exposure to

residual media.

8.1 Dismounting

Only disconnect the measuring instrument once the system has been

depressurised and the power disconnected!

8.2 Return

Wash or clean the dismounted oat switch before returning it, in order to

protect personnel and the environment from exposure to residual media.

Information on returns can be found under the heading

“Service” on our local website.

8.3 Disposal

Incorrect disposal can put the environment at risk.

Dispose of instrument components and packaging materials in an

environmentally compatible way and in accordance with the country-

specic waste disposal regulations.

8. Dismounting, return and disposal

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9. Specications

■

Model RLS-1000

Specications

Switching power Floats with outer ∅ D = 44 mm, 52 mm

Normally open,

normally closed:

AC 230 V; 100 VA; 1 A

DC 230 V; 50 W; 0.5 A

Change-over contact: AC 230 V; 40 VA; 1 A

DC 230 V; 20 W; 0.5 A

Floats with outer ∅ D = 25 mm, 30 mm

Normally open,

normally closed:

AC 100 V; 10 VA; 0.5 A

DC 100 V; 10 W; 0.5 A

Change-over contact: AC 100 V; 5 VA; 0.25 A

DC 100 V; 5 W; 0.25 A

Permissible temperatures

■

Medium

■

Ambient, storage

-30 … +80 °C (-22 … +176 °F)

-30 … +120 °C (-22 … +248 °F)

1)

-30 … +150 °C (-22 … +302 °F)

2)

-30 … +80 °C (-22 … +176 °F)

1) Not with cable material: PVC, PUR; not with connection housing: 58 x 64 x 36 mm

2) Only with cable material: Silicone or connection housing 75 x 80 x 57 mm

■

Model RLS-2000

Specications

Switching power Normally open,

normally closed:

AC 230 V; 100 VA; 1 A

DC 230 V; 50 W; 0.5 A

Change-over contact: AC 230 V; 40 VA; 1 A

DC 230 V; 20 W; 0.5 A

Permissible temperatures

■

Medium

■

Ambient, storage

PP: -10 … +80 °C (14 … 176 °F)

PVDF (option): -10 … +80 °C (14 … 176 °F)

Option: -30 … +120 °C (-22 … +248 °F)

PP: -10 … +80 °C (14 … 176 °F)

PVDF (option): -30 … +80 °C (-22 … +176 °F)

9. Specications

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