WIKA LF-1 User manual
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
EN
DE
FR
ES
Pegelsonde, Typ LF-1
Submersible pressure sensor
Submersible pressure sensor, model LF-1
Transmetteur de pression immergeable, type LF-1
Sonda de pozo, modelo LF-1
2WIKA operating instructions submersible pressure sensor, model LF-1
EN
DE
14141013.02 08/2018 EN/DE/FR/ES
FR
ES
© 12/2016 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!
Betriebsanleitung Typ LF-1 Seite 25 - 46
Operating instructions model LF-1 Page 3 - 24
Mode d'emploi type LF-1 Page 47 - 68
Manual de instrucciones modelo LF-1 Página 69 - 91
14141013.02 08/2018 EN/DE/FR/ES
EN
3WIKA operating instructions submersible pressure sensor, model LF-1
Contents
Declarations of conformity can be found online at www.wika.com
Contents
1. General information 4
2. Design and function 5
3. Safety 7
4. Transport, packaging and storage 9
5. Commissioning, operation 10
6. Faults 15
7. Maintenance and cleaning 17
8. Dismounting, return and disposal 18
9. Specications 20
14141013.02 08/2018 EN/DE/FR/ES
EN
4WIKA operating instructions submersible pressure sensor, model LF-1
1. General information
1. General information
■
The instrument described in the operating instructions has 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 certied 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 user 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 modications.
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: LM 40.04
- Application consultant: Tel.: +49 9372 132-0
Fax: +49 9372 132-406
14141013.02 08/2018 EN/DE/FR/ES
EN
5WIKA operating instructions submersible pressure sensor, model LF-1
2. Design and function
2. Design and function
2.1 Overview
Protection cap
Product label
Connection cable
Measuring point tag with product label
Vent tube with filter element
14141013.02 08/2018 EN/DE/FR/ES
EN
6WIKA operating instructions submersible pressure sensor, model LF-1
2.2 Functional description
The prevailing hydrostatic pressure is measured at the sensor element through the deformation of a diaphragm. By
supplying power, this deformation of the diaphragm is converted into an electrical signal. The output signal from the
submersible pressure sensor is amplied and standardised. The output signal is proportional to the measured hydro-
static pressure.
HART(option)
The instrument version with HARTcan communicate with a controller (master).
Measuring range scaling (turndown)
The start and end of the measuring range can be set within the measuring range.
Do not exceed a turndown of 10:1.
2.3 Scope of delivery
■
Submersible pressure sensor
■
Operating instructions
■
Test report
■
Measuring point tag for xing to the cable end
■
Further certicates (optional)
Cross-check scope of delivery with delivery note.
2. Design and function
14141013.02 08/2018 EN/DE/FR/ES
EN
7WIKA operating instructions submersible pressure sensor, model LF-1
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.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or damage to property or the
environment, if not avoided.
Information
... points out useful tips, recommendations and information for ecient and trouble-free operation.
3.2 Intended use
The submersible pressure sensor is used to convert hydrostatic pressure into an electrical signal.
Only use the submersible pressure sensor in applications that lie within its technical performance limits (e.g. max.
ambient temperature, material compatibility, ...).
→ For performance limits see chapter 9 “Specications”.
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.
14141013.02 08/2018 EN/DE/FR/ES
EN
8WIKA operating instructions submersible pressure sensor, model LF-1
3. Safety
3.3 Personnelqualication
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-specic regula-
tions, current standards and directives, are capable of carrying out the work described and independently recognising
potential hazards.
3.4 Labelling, safety marks
Product label
P# Article no. / S# Serial no. Approvals Model code
Power supply / Total current consumption Pin assignment
Measuring range / Output signal Date of manufacture
Before mounting and commissioning the instrument, ensure you read the operating instructions!
DC voltage
LF-1
14141013.02 08/2018 EN/DE/FR/ES
EN
9WIKA operating instructions submersible pressure sensor, model LF-1
4. Transport, packaging and storage
4. Transport, packaging and storage
4.1 Transport
Check the submersible pressure sensor for any damage that may have been caused by transport.
Obvious damage must be reported immediately.
Make sure that the connection contacts are not damaged.
4.2 Packaging and storage
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change in installation site, sending for
repair).
Prior to storage, clean the submersible pressure sensor thoroughly (→ see chapter 7.3.2 “Cleaning”)
Permissible conditions at the place of storage:
■
Storage temperature: -40 ... +80 °C
■
Humidity: 45 ... 75 % relative humidity (no condensation)
Avoid exposure to the following factors:
■
Direct sunlight or proximity to hot objects
■
Mechanical vibration, mechanical shock (putting it down hard)
■
Soot, vapour, dust and corrosive gases
■
Humid or wet environment
■
Hazardous environments, ammable atmospheres
14141013.02 08/2018 EN/DE/FR/ES
EN
10 WIKA operating instructions submersible pressure sensor, model LF-1
5. Commissioning, operation
5. Commissioning, operation
5.1 Unpacking
When unpacking, do not use any sharp objects (e.g. cutter knives), as this may damage the cable.
Submersible pressure sensors with cable lengths >100 m are wound on cable drums and wrapped with foil.
Unwind the foil manually.The end of the foil is marked with blue tape.
5.2 Suitability for the process conditions
All components of the instrument that are in contact with the process must be suitable for the process conditions that
may exist. Included in this are particularly the process pressure, process temperature and also the chemical proper-
ties of the media. Prior to commissioning, the suitability of the instrument must be ensured (→ for specications, see
chapter 9 “Specications” and the product label).
5.3 Requirements for mounting point
The mounting point must meet the following conditions:
■
The diaphragm is protected from contact with abrasive media and against any impacts.
■
The cable contains a capillary for the pressure compensation.Therefore, the cable must be connected in a dry
space or a suitable terminal enclosure.
■
Sucient space for a safe electrical installation.
■
Permissible ambient and medium temperatures remain within the performance limits.
For performance limits see chapter 9 “Specications”.
5.4 Connecting the instrument
5.4.1 Requirements for voltage supply
→ For power supply see product label
Safety instructions for hazardous locations
Take note of the safety instructions for Ex applications. These safety instructions are attached as “Additional instruc-
tions” to each instrument with Ex approval and are part of the operating instructions manual.
Table of contents
Languages:
Other WIKA Accessories manuals
