WIKA FLR Series User manual
DE
EN
Operating instructions
Betriebsanleitung
Level sensor, model FLR
Niveau-Messwertgeber, Typ FLR
Level sensor with reed switch chain technology
Model FLR
017461.02 10/2016 EN/DE
DE
EN
2Operating instructions level sensor, model FLR
Operating instructions level sensor
Model FLR Page 3 - 18
Betriebsanleitung Niveau-Messwertgeber
Typ FLR Seite 19 - 34
© 09/2016 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®and KSR®are registered trademarks in various countries.
WIKA®and KSR®sind geschützte Marken 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!
EN
3Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
Contents
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 13
6. Faults 15
7. Maintenance and cleaning 16
8. Dismounting, return and disposal 17
9. Specifications 18
Appendix 1: EU declaration of conformity 35
EN
4Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
1. General information
1. General information
■
The level sensors 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.
■
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 documenta-
tion shall apply.
■
Subject to technical modifications.
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: LM 20.02
EN
≤ 30°
5Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
2. Design and function
2.1 Functional description
Level sensors work on the float principle with magnetic transmission.
A permanent magnet built into the float triggers, with its magnetic
field, the resistance measuring chain built into the guide tube.The entire
assembly corresponds to a 3-wire potentiometer circuit.The float
changes its height with the level of the medium it is monitoring.The
measured resistance signal is proportional to the level.The measure-
ment voltage is very finely-stepped due to the contact separation of the
resistance measuring chain and is thus virtually continuous.
2. Design and function
Connection housing
Cable gland
Spanner flats for screwing in
Sealing
Guide tube
Float
Teflon disc
Float stop
2.2 Scope of delivery
Cross-check scope of delivery with delivery note.
EN
6Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
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 equipment or the environment,
if not avoided.
Information
... points out useful tips, recommendations and information
for efficient and trouble-free operation.
3.2 Intended use
Level sensors are used exclusively for monitoring the levels of liquid
media.
The scope of application is defined by the technical performance limits
and materials.
2. Design and function / 3. Safety
EN
7Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
3. Safety
■
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 level sensor are sufficiently resistant to
the medium being monitored. Not suitable for dispersions, abrasive
liquids, highly viscous media and colours.
■
This instrument is not permitted to be used in hazardous areas! For
these areas, level sensors with approval (e.g. in accordance with
ATEX) are required.
■
The operating conditions specified in the operating instructions must
be observed.
■
Do not operate the instrument in the direct vicinity of ferromagnetic
environments (min. distance 50 mm).
■
Do not operate the instrument 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 level sensors must not be exposed to heavy mechanical strain
(impact, bending, vibration).
■
The technical specifications contained in these operating instructions
must be observed. Improper handling or operation of the instrument
outside of its technical specifications 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.
EN
8Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
The manufacturer shall not be liable for claims of any type based on
operation contrary to the intended use.
DANGER!
Work on vessels involves the danger of intoxication and
suffocation. No work is allowed to be carried out unless by
taking suitable personal protective measures (e.g. respirato-
ry protection apparatus, protective outfit etc.).
3.3 Improper use
Improper use is defined 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 situa-
tions and injuries.
▶
Refrain from unauthorised modifications to the instru-
ment.
▶
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.
3. Safety
EN
9Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
To ensure safe working on the instrument, the operating company must
ensure the following:
■
The operating personnel are regularly instructed in all topics regard-
ing work safety, first aid and environmental protection and know
the operating instructions and in particular, the safety instructions
contained therein.
■
The operating personnel have read the operating instructions and
taken note of the safety instructions contained therein.
■
The intended use for the application is complied with.
■
Following testing, improper use of the instrument is excluded.
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 direc-
tives, 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.
3. Safety
EN
10 Operating instructions level sensor, model FLR
017461.02 10/2016 EN/DE
3. Safety
Follow the instructions displayed in the work area regarding
personal protective equipment!
The requisite personal protective equipment must be provided by the
operating company.
3.7 Labelling, safety marks
Product label
Model designation / model
Instrument code
Circuit diagram with colour coding per IEC 757
Serial number
Article number
Measuring point number
Ingress protection per EN/IEC 60529
Symbol of protection class per EN 61140
Switching power
Before mounting and commissioning the instrument, ensure you read the
operating instructions!
This manual suits for next models
17
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