WIKA OLS-F1 User manual

Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
EN
DE
FR
ES
Optoelectronic level switches for sanitary applications,
model OLS-F1
Optoelektronische Füllstandsschalter für die sterile
Verfahrenstechnik, Typ OLS-F1
Model OLS-F1

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EN
DE
FR
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Operating instructions model OLS-F1 Page 3 - 24
Betriebsanleitung Typ OLS-F1 Seite 25 - 46
© 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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Contents
Declarations of conformity can be found online at www.wika.com.
1. General information 4
2. Design and function 5
3. Safety 7
4. Transport, packaging and storage 11
5. Commissioning, operation 12
6. Faults 15
7. Maintenance and cleaning 16
8. Dismounting, return and disposal 17
9. Specifications 18
Appendix: EC declaration of conformity 20
Contents

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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 31.05
1. General information

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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 optoelectronic sensor OLS-F1 was specifically designed for
sanitary applications and is suitable for a wide range of applications.
Autoclavable applications can be performed up to a temperature of
134 °C.
2.2 Instrument construction
The instruments are fitted with different hygienic process
connections.These contain a glass prism and the electronics
responsible for the evaluation with an O.C. PNP transistor output.
The electrical connection is made via a 4-pin M12 circular connector.
With the connector version, the sensor can be covered with the
included protection cap to enable cleaning in the autoclave at
saturated steam conditions of 134 °C.
Operating principle
Gas
Liquid
2. Design and function

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The protection cap is intended for single use.The protection cap and
the sealing must be exchanged after each autoclave cycle.
Dimensions in mm
100 *
EL
7
13
Glass prism
Clamp connection
Circular connector
M12
* customer-specific modifications
possible on request
2. Design and function

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2.3 Scope of delivery
Cross-check scope of delivery with delivery note.
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 materials.
10,5 M12 x 1
SW 15
Protection cap for circular connector M12 x 1
2. Design and function / 3. Safety

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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!
Do not use in zone 1 or 2 hazardous areas.
■
The maximum power and voltage values as specified in the
operating instructions should be adhered to.
■
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 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. Safety

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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.
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. Safety

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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.
3.6 Labelling, safety marks
Product label
The product label is directly lasered onto the level switch.
Type: OLS-F1
Art. Nr.: 969748 K002568494
WIKA Alexander Wiegand SE & Co.KG
D-63911 Klingenberg, Germany
max. 12 - 32 V DC IP 65
2015
Model
Year of manufacture
3. Safety

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Symbols
Before mounting and commissioning the instrument,
ensure you read the operating instructions!
Instruments bearing this mark comply with the relevant
European directives.
The instrument is subject to safety extra-low voltage.
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
3. Safety / 4. Transport, packaging and storage

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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.
5. Commissioning, operation

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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

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5.2 Electrical connection
■
The electrical connection of the switches can be found in the
following connection diagrams.
Assignment circular connector M12
1 Power supply DC 12 … 32 V
3 0
4 Output DC 12 … 32 V
Model
OLS-F1
1
3
4
Power supply DC 12 … 32 V
0
Output DC 12 … 32 V
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
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
Instrument responds
inversely
Wrong switching
function (normally
open, normally closed)
Replace instrument
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 or signal 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”.
6. Faults

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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
power supply.
2. Fit the protection cap on the sensor OLS-F1 and tighten with a
maximum of 5 Nm.
3. When installed place the level switch in an autoclave for a max.
of 20 minutes at saturated steam conditions. Here, the process
parameters 134 °C and 3 bar must not be exceeded.
7. Maintenance and cleaning

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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.
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 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!
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.
7. Maintenance ... / 8. Dismounting, return and ...

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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.
9. Specifications
General data
Measurement accuracy ±0.5 mm
Minimum distance from
the glass tip to an opposite
surface
≥ 10 mm
Mounting position as required
Insertion length IL min. 30 mm
Standard length 30, 50, 100, 150, 200,
250, 300 mm
other lengths on request
Process connection
■
Clamp connections to DIN 32676
- DN 10 ... DN 50 row A
- DN 21.3 ... DN 48.3 row B
- DN ¾" ... DN 2" row C
■
Clamp connections to ISO 2852
(DN 17.2 ... DN 51)
■
Tri-clamp (DN ¾" ... DN 2")
Surface Ra < 0.8 μm
8. Dismounting, return ... / 9. Specifications

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Design data
Medium temperature -30 … +100 °C
autoclavable, max. 134 °C at saturated
steam conditions
Ambient temperature -25 … +70 °C
Operating pressure 0 … 2.5 MPa (0 … 25 bar)
Materials
■
Light guide
■
Case und process connection
Quartz glass
Stainless steel 1.4435
Electrical data
Power supply DC 12 ... 32 V
Max. current supply 40 mA
Electrical connection Circular connector M12, 4-pin
Output signal PNP transistor, protected against
reverse polarity
Switching function Normally open (closed in medium) or
normally closed (open in medium)
Ingress protection IP 65 with connector
IP 69K with protection cap
Number of switch points 1
For further specifications see WIKA data sheet LM 31.05 and the
order documentation.
9. Specifications

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Appendix: EC declaration of conformity