Vega VEGACAP 63 Verdrahtungsschema

Supplementary instructions

Float for oil/water detection

for VEGACAP 63

Document ID:

31595

Capacitive

Contents

1About this document

1.1Function.................................. 3

1.2Target group .............................. 3

1.3Symbolism used............................ 3

2For your safety

2.1Authorised personnel ........................ 4

2.2Appropriate use ............................ 4

2.3Environmental instructions..................... 4

3Product description

3.1Structure ................................. 5

3.2Principle of operation ........................ 5

3.3Storage and transport ....................... 6

4Mounting

4.1General instructions ......................... 7

5Connect the sensor

5.1Preparing the connection ..................... 8

5.2Connection procedure........................ 8

6Setup

6.1Setup.................................... 9

7Maintenance

7.1Instrument repair ........................... 11

8Dismounting

8.1Dismounting steps .......................... 12

8.2Disposal ................................. 12

9Supplement

9.1Technical data ............................. 13

9.2Dimensions ............................... 14

2Float for oil/water detection •for VEGACAP 63

1Contents

31595-EN-100604

1About this document

1.1Function

This supplementary manual,together with the attached 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.

Exapplications

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.

Float for oil/water detection •for VEGACAP 63 3

1About this document

31595-EN-100604

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 protective

equipment must always be worn.

2.2Appropriate use

The ﬂoat for oil/water detection is part of a sensor.It is used for

detection of light liquids on water.

2.3Environmental instructions

Protection of the environment is one of our most important duties.That

is why we have introduced an environment management system with

the goal of continuously improving company environmental protection.

The environment management system is certiﬁed according to DIN

EN ISO 14001.

Please help us fulﬁl this obligation by observing the environmental

instructions in this manual:

lChapter "Storage and transport"

lChapter "Disposal"

4Float for oil/water detection •for VEGACAP 63

2For your safety

31595-EN-100604

3Product description

3.1Structure

The scope of delivery encompasses:

lFloating body for a point level sensor

lNut G1½(plastic)

lAdapter with pin

lGround rod

lDocumentation

-This supplementary operating instructions

The instrument version "Point level sensor with ﬂoat"consists of a ﬂoat

and the point level sensor.

Fig.1:Components of the ﬂoat probe

1Probe (mounted in the centre)

2Nut (plastic)

3Adapter (316L)with pin

4Electrode

5Ground electrode (screwed into the adapter)

6Float

3.2Principle of operation

The ﬂoat is suitable for the following plics

sensors:

lVEGACAP 63

Scope of delivery

Constituent parts

Application area

Float for oil/water detection •for VEGACAP 63 5

3Product description

31595-EN-100604

The probe detects non-conductive light liquids (<1kg/dm³)on water,

e.g.in water or oil separating basins.

Fig.2:Measuring system for oil/water detection

1Cable holder for relief

2Inlet -Water/Oil mixture

3Oil layer

4Water

The measuring system ﬂoats on the water and due to the own weight

the electrode of the probe immerses up to a certain depth.

If there is e.g.oil on the water surface,the measuring system ﬂoats.

The immersion depth of the electrode in water reduces.Hence the

capacitance of the probe changes.The capacitance change is

converted into a switching command.

An oil layer can be already detected from a thickness of 4mm.

3.3Storage 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 environment-

friendly,recyclable cardboard.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 chapter "Supplement -

Technical data -Ambient conditions"

lRelative humidity 20 …85 %

Functional principle

Packaging

Storage and transport

temperature

6Float for oil/water detection •for VEGACAP 63

3Product description

31595-EN-100604

4Mounting

4.1General instructions

To prevent the ﬂoat from touching the vessel wall,it can be guided

vertically.

Use two thin vertical rods or two vertically strained wires at a distance

of 306 mm (12 in)which you lead through the holes in the ﬂoat plate.

Fig.3:Guidance of the ﬂoat

The connection cable can inﬂuence the ﬂoat position of the measuring

system and therefore adulterate the measuring result.

If possible,use a light,ﬂexible connection cable and fasten the cable

with a cable holder.In case of considerable height diﬀerences of the

ﬂoat,you should use a light helix cable.

Product movements can inﬂuence the measurement.In this case,use

a signal conditioning instrument with adjustable damping to avoid

ﬂuctuations of the measured value.

There is a danger of static charging on the plastic ﬂoating body.

Avoid friction

No dry cleaning

Do not mount in areas with ﬂowing,non-conductive products

Guidance

Connection cable

Product movements

Static charges

Float for oil/water detection •for VEGACAP 63 7

4Mounting

31595-EN-100604

5Connect the sensor

5.1Preparing the connection

Follow the instructions in the operating instructions manual of the

sensor.

The connection cable can inﬂuence the ﬂoating position of the

measuring system.For this reason,use a light,ﬂexible connection

cable and fasten the cable on a cable holder.

5.2Connection procedure

The electrical connection is described in the operating instructions of

the sensor.

8Float for oil/water detection •for VEGACAP 63

5Connect the sensor

31595-EN-100604

6Setup

6.1Setup

Setup is carried out according to the operating instructions manual of

the respective sensor.

Make sure that the measuring system is in the water for setup.

Tip:

If setup is not possible in the original vessel,then ﬁll a suitable vessel

(øapprox.400 mm,height approx.150 mm)with water and place the

measuring system with ﬂoat inside the vessel.The measuring result

can be transferred to the original vessel.

Proceed as follows:

1Connect probe and signal conditioning instrument

2Switch on power supply

3Turn the A/Bswitch on the signal conditioning instrument to

position B

The relay deenergizes if an oil layer is detected (safe condition)

0 10

521

1 2 43

5 6 7 8

9 10 11 12 13 14

min.

VEGATO R 621EX

0 10

Fig.4:Suitable signal conditioning instruments

1Potentiometer

2Relay control lamp

4Set potentiometer (1)to 0.The relay control lamp (2)lights.

5Turn the potentiometer (1)slowly clockwise until the relay control

lamp (2)extinguishes.

6Turn the potentiometer (1)very slowly anticlockwise until the relay

control lamp (2)lights.

Float for oil/water detection •for VEGACAP 63 9

6Setup

31595-EN-100604

Hence the measuring system is set very sensitively.An of oil layer

of 3-4mm is suﬃcient to switch the relay.

Information:

To make the measuring system less sensitive,you have to turn the

potentiometer anticlockwise.

The more the potentiometer is turned back,the higher the light liquid

layer has to be to switch the relay.

We recommend connecting the level switch in such a way that the

switching circuit is open when there is a level signal,line break or

failure (safe condition).

An open switch symbol corresponds hence in the following drawing to

the detection of a liquid.

Fig.5:Switching status of the measuring system

A No liquid present

B Water

C Oil layer on water

1Liquid level water

2Liquid level oil >4mm (>0.157 in)

10 Float for oil/water detection •for VEGACAP 63

6Setup

31595-EN-100604

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