WIKA OLS-C Series User manual

Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
EN
DE
FR
ES
Optoelectronic level switches, models OLS-C
Optoelektronische Füllstandsschalter, Typen OLS-C
Commutateurs de niveau opto-électroniques, type OLS-C
Interruptores de nivel optoelectrónicos, modelos OLS-C
Examples for optoelectronic level switches
models OLS-C
Model OLS-C01 Model OLS-C20
Model OLS-C02

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DE
EN
FR
ES
Operating instructions models OLS-C Page 3 - 26
Betriebsanleitung Typen OLS-C Seite 27 - 50
Mode d'emploi types OLS-C Page 51 - 74
Manual de instrucciones modelos OLS-C Página 75 - 98
© 2015 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
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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WIKA operating instructions optoelectronic level switches, models OLS-C
Contents
Declarations of conformity can be found online at www.wika.com.
Contents
1. General information 4
2. Design and function 5
3. Safety 9
4. Transport, packaging and storage 13
5. Commissioning, operation 13
6. Faults 16
7. Maintenance and cleaning 18
8. Dismounting, return and disposal 19
9. Specifications 20
Appendix 1: EC declaration of conformity
models OLS-C01, OLS-C02, OLS-C04, OLS-C05 24
Appendix 2: EC declaration of conformity
model OLS-C20 25
Appendix 3: EC declaration of conformity
model OLS-C29 26

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WIKA operating instructions optoelectronic level switches, models OLS-C
1. General information
■
The level 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 certified 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 onto 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 modifications.
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: LM 31.31 (OLS-C01),
LM 31.32 (OLS-C02),
LM 31.33 (OLS-C05),
LM 31.34 (OLS-C04),
LM 31.02 (OLS-C20),
LM 31.03 (OLS-C29)
1. General information

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WIKA operating instructions optoelectronic level switches, models OLS-C
2. Design and function
2.1 Description
This instrument is used for the
detection of limit levels in liquids.The
measuring principle is independent
of refractive index, colour, density,
conductivity and dielectric constant.
The switches consist of an infrared
LED and a phototransistor.The light
of the LED is directed into a prism. So
long as the sensor tip of the prism is
in the gas phase, the light is reflected
within the prism to the receiver. When
the liquid in the vessel rises and wets
the glass tip, the infrared lightbeam
into the liquid is interrupted and only a
small portion reaches the receiver.
The integrated switch electronics offer an automatic adjustment so
that there is a wide field of application. For the output, there is an
O.C. pnp-transistor switching output or a relay switching output.
2.2 Instrument construction
Depending on the switch type, the instruments are fitted with
different process connections.These contain a glass prism and the
electronics responsible for the evaluation.
2. Design and function
Operating principle
Gas
Liquid

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WIKA operating instructions optoelectronic level switches, models OLS-C
Dimensions in mm
Model OLS-C01 Model OLS-C02
2. Design and function
(alternatively cable
connection)
Glass prism
Function indicator
LED Circular connector
M8 x 1, 3-pin
(alternatively circular or
angular connector)
Cable outlet
M16 x 1.5, PG11
Cable
Glass prism

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WIKA operating instructions optoelectronic level switches, models OLS-C
Cable outlet
Cable
Glass prism
(alternatively circular
connector)
Function indicator
LED
Angular connector
EN 175301-803 A
Glass prism
(alternatively cable
connection or
circular connector)
SW 30
Model OLS-C04 Model OLS-C05
2. Design and function

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WIKA operating instructions optoelectronic level switches, models OLS-C
Cable
62
41
47
ca. 64
dependent on process connection
Process connection
Case with
electronics
LED
LED
Cable outlet
(alternatively circular
connector)
Model OLS-C20
2.3 Scope of delivery
Cross-check scope of delivery with delivery note.
2. Design and function
Legend:
ML fixed measuring length 24 mm
green LED
Cable length
3,000
Model OLS-C29

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WIKA operating instructions optoelectronic level switches, models OLS-C
3. Safety
3. Safety
3.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can
result in serious injury or death, if not avoided.
Information
... points out useful tips, recommendations and
information for efficient and trouble-free operation.
3.2 Intended use
The optoelectronic level switches should only be used for level
control or monitoring of liquid media.Their scope of application is
defined by their technical performance limits and their materials.
Improper use is defined as any application that exceeds the technical
performance limits or is not compatible with the materials. Checking
against improper use is the responsibility of the operator.
■
The liquids must not have any large contamination or coarse
particulates and must not have a tendency to crystallise. Ensure
that the wetted materials of the switch are sufficiently resistant to
the medium being monitored. Not suitable for dispersion, abrasive
liquids, highly viscous media and colours.
■
This instrument is not permitted to be used in hazardous areas!
■
The maximum power and voltage values as specified in the
operating instructions should be adhered to.

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WIKA operating instructions optoelectronic level switches, models OLS-C
3. Safety
■
Do not operate the instruments in the immediate vicinity of strong
electromagnetic fields or in the immediate vicinity of equipment
that can be affected by magnetic fields (min. clearance 1 m).
■
The responsiveness of the instrument is preset and, with
models OLS-C20 and OLS-C29, cannot be adjusted. With
the models OLS-C01, OLS-C02, OLS-C04 and OLS-C05, the
responsiveness can only be adjusted if the switch is fitted with a
trimmer.
■
The switches must not be exposed to heavy mechanical strain
(impact, bending, vibration).
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.
3.3 Improper use
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 different to the intended use is considered as
improper use.
Do not use this instrument in safety or emergency stop devices.

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WIKA operating instructions optoelectronic level switches, models OLS-C
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 the operating personnel are regularly instructed in all topics
regarding work safety, first 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.
3.5 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient
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-specific regulations, current standards
and directives, are capable of carrying out the work described and
independently recognising potential hazards.
3. Safety

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WIKA operating instructions optoelectronic level switches, models OLS-C
3. Safety
Pin assignment
SA
G1/2
24 V
+-
WIKA Alexander Wiegand
SE&Co. KG
Alexander-Wiegand-Straße
63911 Klingenberg
Out-
put
Art.-Nr.13496159
Model OLS-C20
BN (2) WS (1) GN (3)
3.6 Labelling, safety marks
Product label (examples)
Model OLS-C20
Model OLS-C04
Symbols
Before mounting and commissioning the instrument, ensure
you read the operating instructions!
Instruments bearing this mark comply with the relevant European
directives.
Date of
manufacture

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WIKA operating instructions optoelectronic level switches, models OLS-C
4. Transport, packaging and storage
4.1 Transport
Check the switch for any damage that may have been caused by
transport.
Obvious damage must be reported immediately.
4.2 Packaging and storage
Do not remove packaging until just before mounting.
Permissible conditions at the place of storage:
Storage temperature: 0 ... 70 °C
5. Commissioning, operation
When unpacking the switch, check all components for any external
damage. Prior to installation, a functional check can also be carried
out. For this, the instrument should be connected temporarily and the
glass prism dipped in and out of a glass of liquid to test it.
5.1 Mounting
■
Before installation, it must be ensured that the mounting hole
and the fixing device for the switches in the vessel are correct in
size and dimension.
■
Mount the switch, pressure-sealed, into the process
connection.
■
Following installation, the glass tip should have a distance of at
least 10 mm to the opposite wall.This minimum clearance can
vary dependent upon the geometry and surface finish of the wall.
Note: with electropolished pipes, the minimum distance to the
opposite surface must be a minimum of 20 mm.
4. Transport ... / 5. Commissioning, operation

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WIKA operating instructions optoelectronic level switches, models OLS-C
Installation instructions
Horizontal installation Vertical installation
Inclined installation Installation in elongated fitting
Vessel or pipe wall
Rubber or metal sealing
fitting with sealing face
elongated fitting
Insulation
5. Commissioning, operation
5.2 Electrical connection
The electrical connection of the switches can be found in the
following connection diagrams.

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WIKA operating instructions optoelectronic level switches, models OLS-C
Electrical connection diagram
Models OLS-C01, OLS-C02, OLS-C04 and OLS-C05
5. Commissioning, operation
Model OLS-C20
Model OLS-C29, power supply 230 V
OLS-C29
BN (brown)
YE (yellow)
GN (green)
OG (orange)
BK (black)
Phase
NO
COM
NC
Output
Neutral conductor
Model OLS-C29, power supply 24 V
OLS-C29
RD (red)
YE (yellow)
GN (green)
OG (orange)
BK (black)
24 V
NO
COM
NC
Output
Neutral conductor
Connector assignment
Output
Load
DC 12 ... 32 V
0 V
Connector assignment
brown
green
white
Output
Load
24 V
0 V Output
24 V
0 V
Output
0 V
DC 12 ... 32 V

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WIKA operating instructions optoelectronic level switches, models OLS-C
Switching delay and blink codes for model OLS-C29
The model OLS-C29 switch features a pre-programmed switching
delay of 1 s (optional are other times, up to 12 s), after which time the
signal relay's state changes.
This acts to suppress fast changes in the switching status, e.g. with
bubbling or wave effects in the tank.The functional check can be
carried out in-situ via the built-in LEDs.
Their blink codes are given in the following table.
Operating state LED Relay
Switching on blinks 3 x deactivated
Wetted
(sensor in the optically denser
medium)
goes on 2 x per second activated
Dry
(sensor in the optically less
dense medium)
goes off 2 x per second deactivated
Error blinks 5 x per second deactivated
6. Faults
The following table contains the most frequent causes of
faults and the necessary countermeasures.
5. Commissioning, operation / 6. Faults

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WIKA operating instructions optoelectronic level switches, models OLS-C
6. Faults
Faults Causes Measures
No function Failure in power
supply
Measure voltage, check
cable or plug connection
Despite a change in
level, no alteration in the
display and no switching
of the output
Glass tip dirty Clean the glass tip
(introduce service
intervals)
Glass tip too close to
an opposite surface
Increase the distance,
change the mounting
location
Glass tip defective Exchange the glass tip
(model OLS-C29) or
return to the manufacturer
Instrument responds
inversely
Wrong switching
function (normally
open, normally closed)
Replace instrument
Relay connections
inverted
(model OLS-C29)
Change relay
connections over
Instrument obviously does
not respond or responds
too slowly on a level
change (model OLS-C29)
Switching delay Wait for delay time
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 pressure is no longer present and protect
against accidental commissioning.
▶
Contact the manufacturer.
▶
If a return is needed, please follow the instructions
given in chapter 8.2 “Return”.

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WIKA operating instructions optoelectronic level switches, models OLS-C
7. Maintenance and cleaning
For contact details, please see chapter 1 “General
information” or the back page of the operating
instructions.
7.1 Maintenance
The optoelectronic level switches work maintenance-free in normal
operation.They must be subjected to visual inspection within the
context of regular servicing, however, and included in the tank
pressure test.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
Physical injuries and damage to property and the
environment
Improper cleaning may lead to physical injuries and
damage to property and the environment. Residual
media in the dismounted instrument can result in a risk
to personnel, the environment and equipment.
▶
Rinse or clean the removed instrument.
▶
Sufficient precautionary measures must be taken.
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!
▶
CAUTION!
Damage to property
Improper cleaning may lead to damage to the
instrument!
▶
Do not use any aggressive cleaning agents.
▶
Do not use any pointed and hard objects for cleaning.
7. Maintenance and cleaning

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WIKA operating instructions optoelectronic level switches, models OLS-C
8. Dismounting, return and disposal
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 personnel, the environment and equipment.
▶
Wash or clean the dismounted instrument, in order
to protect personnel 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!
If necessary, the measuring line must have strain relief.
8.2 Return
Wash or clean the dismounted 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-
specific waste disposal regulations.

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WIKA operating instructions optoelectronic level switches, models OLS-C
9. Specifications
Models OLS-C01, OLS-C02, OLS-C04 and OLS-C05
General data
Measuring accuracy ±0.5 mm
Mounting position as required
Visual indication of the
switching status
1 LED (not for model OLS-C02)
Design data
Responsiveness preset
Medium temperature Models OLS-C01, OLS-C02: -30 ... +100 °C
Model OLS-C04: -40 ... +100 °C
Model OLS-C05: -40 ... +150 °C
Ambient temperature Models OLS-C01, OLS-C02: -25 ... +70 °C
Model OLS-C04: -30 ... +70 °C
Model OLS-C05: -30 ... +80 °C
Operating pressure 0 … 2.5 MPa (0 … 25 bar)
Model OLS-C04: 0 … 4 MPa (0 … 40 bar)
Electrical data
Power supply DC 12 ... 32 V
Max. current supply 40 mA
Output PNP transistor, protected against reverse
polarity
Switching function Normally open (closed in medium) or normally
closed (open in medium)
Switching current 200 mA
Ingress protection IP 65
Number of switch points 1
9. Specifications