KROHNE OPTISWITCH 3100 C Manuel utilisateur

Operating Instructions

OPTISWITCH 3100 C

with transistor 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 ............................ 8

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

4Mounting

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

4.2Mounting instructions.................... 11

5Connecting to voltage supply

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

5.2Connection steps....................... 15

5.3Wiring plan,single chamber housing......... 16

6Set up

6.1General.............................. 19

6.2Adjustment elements .................... 19

6.3Function chart ......................... 20

7Maintenance and fault rectiﬁcation

7.1Maintenance .......................... 22

7.2Rectify faults .......................... 22

7.3Exchange the electronics ................. 23

7.4Instrument repair ....................... 24

8Dismounting

8.1Dismounting procedure .................. 25

8.2Disposal ............................. 25

2OPTISWITCH 3100 C-with transistor output

Contents

29954-EN-060830

9Supplement

9.1Technical data......................... 26

9.2Dimensions ........................... 29

Supplementary operating instructions manuals

Information:

OPTISWITCH 3100 Cis available in diﬀerent versions.

Depending on the selected version,supplementary operating

instructions manuals may also come with the shipment.The

supplementary operating instructions manuals are listed in

section "Product description.

Operating instructions manuals for accessories and

replacement parts

Tip:

To ensure reliable setup and operation of your OPTISWITCH

3100 C,we oﬀer accessories and replacement parts.The

associated documents are:

lOperating instructions manual "Oscillator"

OPTISWITCH 3100 C-with transistor output 3

Contents

29954-EN-060830

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 3100 C-with transistor output

About this document

29954-EN-060830

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 3100 Cis a sensor for level detection.

Detailed information on the application range of OPTISWITCH

3100 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 3100 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 installation standards

(e.g.the VDE regulations in Germany)as well as all prevailing

safety regulations and accident prevention rules.

2.5CE conformity

OPTISWITCH 3100 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 61326:1997 (class B)

-Susceptibility EN 61326:1997/A1:1998

lLVD:EN 61010-1:2001

OPTISWITCH 3100 C-with transistor output 5

For your safety

29954-EN-060830

2.6SIL conformity

OPTISWITCH 3100 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 3XXX".

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 3100 C-with transistor output

For your safety

29954-EN-060830

3Product description

3.1Conﬁguration

The scope of delivery encompasses:

lOPTISWITCH 3100 Clevel sensor

lDocumentation

-this operating instructions manual

-Supplementary instructions manual "Plug connector for

level sensors"(optional)

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

necessary further certiﬁcates

OPTISWITCH 3100 Cconsists of the following components:

lHousing cover

lHousing with electronics

lprocess ﬁtting with tuning fork

Fig.1:OPTISWITCH 3100 Cwith plastic housing

1Housing cover

2Housing with electronics

3Process ﬁtting

3.2Principle of operation

OPTISWITCH 3100 Cis a level sensor with tuning fork for level

detection.

It is designed for industrial use in all areas of process

technology and is preferably used for bulk solids.

Typical applications are overﬁll and dry run protection.Thanks

to its simple and robust measuring system,OPTISWITCH

3100 Cis virtually unaﬀected by the chemical and physical

properties of the bulk solid.

Scope of delivery

Components

Area of application

OPTISWITCH 3100 C-with transistor output 7

Product description

29954-EN-060830

It functions even when exposed to strong external vibration or

changing products.

Solid detection in water

IfOPTISWITCH 3100 Cwas ordered for detection of solids in

water,the tuning fork is adjusted to the density of water.In the

air or when covered by water (density:1g/cm³/0.036 lbs/in)

OPTISWITCH 3100 Csignals "uncovered".Only if the

vibrating element is also covered with solids (e.g.sand,

sludge,gravel etc.) will the sensor signal "covered".

Fault monitoring

The electronics of OPTISWITCH 3100 Ccontinuously mon-

itors the following criteria:

lCorrect vibrating frequency

lLine break to the piezo drive

If one of the stated malfunction is detected or in case of power

failure,the electronics takes on a deﬁned switching condition,

i.e.the output transistor blocks (safe condition).

The tuning fork is piezoelectrically energised and vibrates at its

mechanical resonance frequency of approx.150 Hz.When the

tuning fork is submerged in the product,the vibration

amplitude changes.This change is detected by the integrated

oscillator and converted into a switching command.

OPTISWITCH 3100 Cis 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

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

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

data"in the "Supplement".

3.3Operation

With the factory setting,products with a density of >0.02 g/cm³

(>0.0008 lbs/in³)can be measured.The instrument can also

be adapted to products with lower density >0.008 g/cm³

(>0.0003 lbs/in³).

On the electronics module you will ﬁnd the following indicating

and adjustment elements:

lsignal lamp for indication of the switching condition (green/

red)

lpotentiometer for adaptation to the product density

Physical principle

Power supply

8OPTISWITCH 3100 C-with transistor output

Product description

29954-EN-060830

lMode switch for selecting the switching condition (min./

max.)

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 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 "Supplement -

Technical data -Ambient conditions"

lRelative humidity 20 …85 %

Packaging

Storage and transport tem-

perature

OPTISWITCH 3100 C-with transistor output 9

Product description

29954-EN-060830

4Mounting

4.1General instructions

In general,OPTISWITCH 3100 Ccan be mounted in any

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

the vibrating element is at the height of the requested switching

point.

Use the recommended cables (see chapter "Connecting to

power supply")and tighten the cable gland.

You can give your OPTISWITCH 3100 Cadditional protection

against moisture penetration by leading the connection cable

downward in front of the cable entry.Rain and condensation

water can thus drain oﬀ.This applies mainly to mounting

outdoors,in areas where moisture is expected (e.g.by

cleaning processes)or on cooled or heated vessels.

Fig.2:Measures against moisture penetration

Do not hold OPTISWITCH 3100 Con the vibrating element.

Especially with ﬂange and tube versions,the sensor can be

damaged by the weight of the instrument.

Remove the protective cover just before mounting.

The process ﬁtting must be sealed if there is gauge or low

pressure in the vessel.Before use,check if the seal material is

resistant against the measured product and the process

temperature.

The max.permissible pressure is stated in the "Technical

data"in the "Supplement"or on the type label of the sensor.

Switching point

Moisture

Transport

Pressure/Vacuum

10 OPTISWITCH 3100 C-with transistor output

Mounting

29954-EN-060830

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