IFM LX Series Operating Instructions Manual

IFM LX Series Operating Instructions Manual

Electronic level sensor
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Operating instructions
Electronic level sensor
UK
LR9020
LXxxxx

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Summary of Contents for IFM LX Series

  • Page 1 Operating instructions Electronic level sensor LR9020 LXxxxx...
  • Page 2: Table Of Contents

    Contents 1 Preliminary note ���������������������������������������������������������������������������������������������������4 1�1 Symbols used ������������������������������������������������������������������������������������������������4 2 Safety instructions �����������������������������������������������������������������������������������������������4 3 Items supplied������������������������������������������������������������������������������������������������������5 4 Functions and features ����������������������������������������������������������������������������������������5 4�1 Operation with single probe ���������������������������������������������������������������������������6 4�2 Operation with coaxial probe �������������������������������������������������������������������������6 4�3 Applications ���������������������������������������������������������������������������������������������������6 4�3�1 Restriction of the application area ��������������������������������������������������������7 4�4 Special information on DNV-GL approval ������������������������������������������������������8 5 Function ���������������������������������������������������������������������������������������������������������������8 5�1 Measuring principle ���������������������������������������������������������������������������������������8...
  • Page 3 6�4�4 Installation in plastic tanks ������������������������������������������������������������������20 6�5 Installation of the unit with coaxial probe in the tank �����������������������������������20 6�6 Alignment of the sensor housing �����������������������������������������������������������������21 7 Electrical connection ������������������������������������������������������������������������������������������21 8 Operating and display elements ������������������������������������������������������������������������21 9 Parameter setting ����������������������������������������������������������������������������������������������22 9�1 Parameter setting via PC �����������������������������������������������������������������������������22 9�2 Parameter setting via the memory plug �������������������������������������������������������23 10 Operation ���������������������������������������������������������������������������������������������������������23 10�1 Operating and diagnostic messages via IO-Link ��������������������������������������23...
  • Page 4: Preliminary Note

    1 Preliminary note 1.1 Symbols used ► Instructions > Reaction, result […] Designation of keys, buttons or indications → Cross-reference Important note Non-compliance may result in malfunction or interference� Information Supplementary note� 2 Safety instructions • The device described is a subcomponent for integration into a system� - The manufacturer of the system is responsible for the safety of the system�...
  • Page 5: Items Supplied

    • If required, 1 coaxial pipe (for operation of the unit with coaxial probe → 4.2) • Mounting material (if necessary, a launching plate → 4.1). Only use accessories from ifm electronic gmbh! The optimum function is not ensured when using components from other manufacturers�...
  • Page 6: 4�1 Operation With Single Probe

    4.1 Operation with single probe The single probe is made up of one individual rod� Operation with single probe is suited for the detection of aqueous media, in particular of heavily soiled aqueous media� For the correct function with single probe, the unit needs a large enough metal launching plate�...
  • Page 7: 4�3�1 Restriction Of The Application Area

    Application examples: • Detection of coolant emulsion in a machine tool� • Detection of cleaning liquid in a parts cleaning system� • Monitoring of hydraulic oil in a hydraulic power unit (only for operation with coaxial probe) • Detection of Diesel fuel (only for operation with coaxial probe, in non hazardous areas!)�...
  • Page 8: 4�4 Special Information On Dnv-Gl Approval

    4.4 Special information on DNV-GL approval For use under DNV-GL conditions (if device approval is available), observe the following instructions: • Single probes and coaxial probes up to a length of 500 mm can be operated without support� • For probe lengths from 500 mm to 2000 mm, coaxial probes must be used�...
  • Page 9: 5�2 Features Of The Unit

    5.2 Features of the unit 5.2.1 Set-up via IO-Link • The device parameters are set via the IO-Link interface (→ 5.2.5 and → 9)� • All settings can also be carried out before installation of the unit� 5.2.2 Analogue function The unit provides an analogue signal proportional to level�...
  • Page 10: 5�2�3 Probes For Different Tank Heights

    In addition communication is possible via a point-to-point connection with a USB adapter cable� For further information about IO-Link view: www�ifm�com/gb/io-link� Device-specific information You will find the IODDs necessary for the configuration of the IO-Link unit and detailed information about process data structure, diagnostic information and parameter addresses at www�ifm�com/gb/io-link�...
  • Page 11: Installation

    6 Installation 6.1 Installation location / environment • Vertical installation from the top is preferred� 6.1.1 Unit with single probe • For safe functioning, the unit requires a launching plate (→ 6.4). • The following minimum distances between the rod and tank walls, objects in the tank (B), tank bottom and other level sensors must be adhered to: 50mm 100mm...
  • Page 12 • If the medium is strongly polluted, there is the risk that a bridge forms between the rod and the tank wall or structures in the tank� To avoid incorrect measurements: adhere to increased minimum distances depending on type and intensity of the soiling� •...
  • Page 13 fig. 6-3 fig. 6-4 50mm • Strong foam formation and strongly moving surfaces can lead to malfunctions (see the following fig�)� Recommended remedies: use a coaxial probe, install a still pipe or bypass� Note: minimum diameter d = 100 mm� The upper access to the bypass (A) and the fill openings of the still pipe (B) must be above the maximum level�...
  • Page 14: 6�1�2 Unit With Coaxial Probe

    6.1.2 Unit with coaxial probe • No minimum distances to the tank wall and the baffles (B) are required� • Minimum distance to the bottom of the tank: 10 mm� • The vent hole (A) must not be covered by mounting elements or similar�...
  • Page 15: 6�2�2 Installation Of The Coaxial Pipe

    Substances such as screw retaining compounds may migrate into the medium� Make sure that they are harmless! When using mechanical means of securing (e�g� tooth lock washer), protruding edges must be avoided� They may cause interference reflection� 6.2.2 Installation of the coaxial pipe This subchapter is only relevant if the unit is to be operated with a coaxial probe�...
  • Page 16: 6�3 Shortening Of The Probe

    6.3 Shortening of the probe 6.3.1 How to shorten the rod and to determine its length L The rod can be shortened to adapt the probe to different tank heights� Ensure that the probe length is never below the minimum permissible probe length of 100 mm (L )! The unit does not support probe lengths below 100 mm�...
  • Page 17: 6�3�3 Determination Of The Rod Length L When Coaxial Probes Are Used

    ► Remove fastening bracket and fig. 6-6 centring piece (A, B)� ► Shorten the coaxial pipe to the requested length: L = L + 9 mm� ► After shortening, at least one hole (C) for insertion of the fixing bracket has to be left� ►...
  • Page 18: 6�4�1 Installation In Closed Metal Tanks (Without Flange Plate)

    6.4.1 Installation in closed metal tanks (without flange plate) fig. 6-7 fig. 6-8 fig. 6-9 ► The lower edge of the process connection should be flush with the installation environment (fig� 6-7)� ► Avoid non-flush installation (fig� 6-8)� ► Use seals or washers (D in fig� 6-9) to reach the required height� ►...
  • Page 19: 6�4�3 Installation In Open Tanks

    Wall thickness [mm] 1���5 5���8 8���11 Bore hole diameter [mm] ► Install the flange plate with the flat surface showing to the tank and fix it with appropriate screws� A seal (B in fig� 6-11) can be inserted between flange plate and tank� Some flange plates are supplied with a seal�...
  • Page 20: 6�4�4 Installation In Plastic Tanks

    6.4.4 Installation in plastic tanks 150 mm To enable sufficient transfer of the measured signal, note in case of installation in plastic tanks or metal tanks with plastic lid: ► The plastic lid must be provided with a drill hole with a minimum diameter of 150 mm�...
  • Page 21: 6�6 Alignment Of The Sensor Housing

    Only then is the unit ready for operation (→ 9)� 8 Operating and display elements This unit version has no operating and display elements� For parameter setting → 9� For units with display and operating elements → www.ifm.com.
  • Page 22: Parameter Setting

    9.1 Parameter setting via PC For parameter setting an IO-Link software is necessary (e�g� "LINERECORDER SENSOR" or "ifm Container")� The USB IO-Link interfaces with the order no� E30396 or E30390 are available for the connection of the sensor via the USB interface of a computer�...
  • Page 23: 9�2 Parameter Setting Via The Memory Plug

    You can find more information about the memory plug in the technical documentation for the article E30398 (available free of charge at www�ifm�com)� 10 Operation After power on, the unit is in the Run mode (= normal operating mode)� It carries out its measurement and evaluation functions and generates output signals according to the set parameters�...
  • Page 24: Maintenance

    11 Maintenance ► Keep the process connection free of deposits and foreign bodies� ► In case of heavy soiling: clean the process connection and the probe at regular intervals� In case of longer operation separation layers can form in the medium (e�g� oil on water)�...
  • Page 25 More information at www�ifm�com...

This manual is also suitable for:

Lr9020

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