IFM efector160 LR2750 User manual

Operating instructions
Electronic level sensor
LR2750
80230930 / 00 07 / 2015 (Ref. 80230928 / 00 07 / 2015)
UK

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Contents
1 Preliminary note...................................................................................................4
1.1 Symbols used ................................................................................................4
2 Safety instructions ...............................................................................................4
3 Items supplied......................................................................................................5
4 Getting started .....................................................................................................5
5 Functions and features ........................................................................................6
5.1 Applications ...................................................................................................6
6 Function...............................................................................................................7
6.1 Measuring principle .......................................................................................7
6.2 Other features of the unit...............................................................................7
6.2.1 Display functions ..................................................................................8
6.2.2 Analogue function ................................................................................8
6.2.3 Switching functions ............................................................................10
6.2.4 Damping function................................................................................ 11
6.2.5 Defined state in case of a fault ........................................................... 11
6.2.6 IO-Link ................................................................................................12
6.2.7 Simulation functions ...........................................................................12
7 Installation .........................................................................................................12
7.1 Installation location / environment ...............................................................12
7.1.1 Installation distances ..........................................................................12
7.1.2 Notes on the tank adjustment.............................................................16
7.2 Installation of the probe ...............................................................................17
7.2.1 Installation of the rod ..........................................................................17
7.3 Shortening of the probe, determination of the probe length ........................18
7.4 Installation of the unit in the tank .................................................................19
7.4.1 Installation in open tanks ....................................................................21
7.4.2 Installation in plastic tanks..................................................................22
7.4.3 Note on the use in accordance with EHEDG......................................22
8 Electrical connection..........................................................................................23
9 Operating and display elements ........................................................................24
10 Menu................................................................................................................25
10.1 Menu structure...........................................................................................25

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10.2 Explanation of the menu............................................................................27
10.2.1 Main menu........................................................................................27
10.2.2 EF level (extended functions) ...........................................................27
10.2.3 CFG level (configuration)..................................................................28
10.2.4 ENV level (environment)...................................................................28
10.2.5 SIM level (simulation) .......................................................................28
11 Parameter setting.............................................................................................29
11.1 Parameter setting in general......................................................................29
11.2 First set-up (unit with factory setting).........................................................31
11.2.1 Entering the probe length .................................................................31
11.2.2 Carry out tank adjustment.................................................................32
11.3 Configure display (optional) .......................................................................32
11.4 Setting of output signals.............................................................................33
11.4.1 Setting of the output function for OUT1 ............................................33
11.4.2 Setting of the output function for OUT2 ...........................................33
11.4.3 Setting of switching limits (hysteresis function) ................................33
11.4.4 Scaling of the analogue signal..........................................................33
11.4.5 Setting of switching limits (window function).....................................34
11.4.6 Set the switching delays for switching outputs .................................34
11.4.7 Set the switch-off delay for switching outputs...................................34
11.4.8 Response of the outputs in case of a fault........................................34
11.4.9 Set output logic for the switching outputs .........................................34
11.4.10 Set damping for the switching signal ..............................................34
11.4.11 Setting the delay time for cases of fault ..........................................35
11.5 Reset all parameters to factory setting ......................................................35
11.6 Changing basic settings.............................................................................35
11.6.1 New entering of the probe length......................................................35
11.6.2 Setting to another medium................................................................36
11.7 Simulation ..................................................................................................36
11.7.1 Set simulation value..........................................................................36
11.7.2 Set simulation time ...........................................................................36
11.7.3 Switch simulation on / off ..................................................................36
12 Operation.........................................................................................................37
12.1 Operating indicators ..................................................................................37
12.2 Reading the set parameters ......................................................................38
12.3 Change the display unit in the operating mode .........................................38

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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
• Read this document prior to set-up of the unit. Ensure that the product is
suitable for your application without any restrictions.
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property can occur.
• Improper or non-intended use may lead to malfunctions of the unit or to
unwanted effects in your application. That is why installation, electrical
connection, set-up, operation and maintenance of the unit must only be carried
out by qualified personnel authorised by the machine operator.
• In order to guarantee the correct condition of the device for the operating time it
is necessary to use the device only for media to which the wetted materials are
sufficiently resistant (→ Technical data).
• It is the operator's responsibility to verify whether the device is suitable for the
respective application. The manufacturer assumes no liability for consequences
of misuse by the operator.
12.4 Fault indications.........................................................................................38
12.5 Output response in different operating states............................................39
13 Technical data..................................................................................................39
14 Maintenance / Transport..................................................................................40
14.1 Transport ...................................................................................................40
15 Factory setting .................................................................................................41

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• Improper installation and use of the device result in a loss of the warranty
claims.
• The unit may cause radio interference in domestic areas. If interference occurs,
the user must take appropriate remedial actions.
• The unit complies with the standard EN 61000-6-4 and is a class A product.
The radiated energy of the microwaves is, for example, much below that of
mobile phones. According to the current state of science the operation of the
unit can be classified to be harmless to human health.
3 Items supplied
• LR2750 level sensor
• Operating instructions
In addition, the following is necessary for installation and operation:
• Rod
• Mounting adapter / welding adapter (a launching plate if required → 5)
Available accessories: www.ifm.com → Data sheet search → Accessories
Only use accessories from ifm electronic gmbh. The optimum function is
not ensured when using components from other manufacturers.
4 Getting started
For fast set-up and unless there are any other requirement the quick set-up
described below is possible for most applications. The quick set-up does not
replace observance of the other chapters.
►Install the unit correctly (→ 7.1 and → 8).
►Enter probe length (→ 11.2).
>The unit is ready for operation.
►If required, carry out tank adjustment (parameter [tREF] → 11.2.2).
►If required, set switching limits for OUT1
(parameters [SP1] / [rP1] → 11.4.3).
►If required, scale analogue output OUT2
(parameters [ASP2] / [AEP2] → 11.4.4).