IFM Electronic LR2059 Operating Instructions Manual Download

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12 Operation

12.1 Operation with single probe

The single probe is made up of one individual rod. Operation with a single probe is

suited for the detection of aqueous media, in particular of heavily soiled aqueous

media.

For correct function with single probe, the unit needs a sufficiently large

metal launching surface / launching plate. It is necessary for transferring

the microwave pulse to the tank with optimum transmission power.
For installation in closed metal tanks / metal bypass pipes, the tank lid

/ upper pipe section serves as a launching surface. For installation in

open metal tanks, tanks made of plastic or metal tanks with plastic lids

a sufficiently large fixing plate, a metal plate or similar must be used

(→

7.6.3),

(→ 7.6.4)

For operation with single probe, minimum distances to tank walls and

structures in the tank must be adhered to

(→ 7.2)

12.2 Operation with coaxial probe

The coaxial probe is made up of an inner probe and an outer probe pipe (coaxial

pipe). The probe is centred in the coaxial pipe by one or several spacers.
In case of operation with a coaxial probe media with a low dielectric constant (e.g.

oil and oil-based media) are detected in addition to aqueous media.

In addition, the following applies in case of operation with coaxial probe:

• No launching plate is required.
• No minimum distances to tank walls and objects in the tank need to be

observed.

• No tank adjustment is necessary.

Observe the application area of the coaxial probe

(→ 5.2)

12.3 Function check

After power-on the device is in the operating mode. It carries out its measurement

and evaluation functions and generates output signals according to the set

parameters.

►

Check whether the unit operates correctly.

Summary of Contents for LR2059

Page 1: ...Operating instructions Electronic level sensor LR2059 UK 01 2018 ...

Page 2: ...12 6 3 5 Probes for different tank heights 13 6 3 6 Defined state in case of a fault 13 6 3 7 IO Link 14 6 3 8 Simulation functions 14 7 Installation 14 7 1 Installation location environment 14 7 2 Unit with single probe 14 7 2 1 Minimum distances for installation in closed metal tanks 15 7 2 2 Installation in pipes 15 7 2 3 Applications with viscous and fast flowing media 16 7 2 4 Fill openings 1...

Page 3: ...r housing 28 8 Electrical connection 29 9 Operating and display elements 30 10 Menu 31 10 1 Menu structure 31 10 2 Explanation of the menu 33 10 2 1 Main menu I 33 10 2 2 EF level extended functions II 33 10 2 3 CFG level configuration III 34 10 2 4 ENV level environment IV 34 10 2 5 SIM level simulation V 34 11 Parameter setting 35 11 1 Parameter setting in general 35 11 2 Basic settings set up 3...

Page 4: ... 6 3 Set to another medium 42 11 7 Simulation 43 11 7 1 Set simulation value 43 11 7 2 Set simulation duration 43 11 7 3 Switch simulation on off 43 12 Operation 44 12 1 Operation with single probe 44 12 2 Operation with coaxial probe 44 12 3 Function check 44 12 4 Operation indication 45 12 5 Read the set parameters 45 12 6 Change the display unit in the operating mode 46 12 7 Error indications 4...

Page 5: ...ns without any restrictions Only use the product for its intended purpose Functions and features Only use the product for permissible media Technical data sheet If the operating instructions or the technical data are not adhered to personal injury and or damage to property may occur The manufacturer assumes no liability or warranty for any consequences caused by tampering with the product or incor...

Page 6: ...ured when using components from other manufacturers 4 Getting started For the most frequent applications the quick set up described below is possible The quick set up does not replace observance of the other chapters Install the unit correctly Installation distances 7 1 Electrical connection 8 Setting the type of probe probe length and medium 11 2 The unit is ready for operation Without changes fa...

Page 7: ...erence in domestic areas If interference occurs the user must take appropriate actions The microwave energy radiated by the unit is 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 5 2 Restriction of the application area Incorrect measurements may be caused by the following media Highly absorbing s...

Page 8: ... 6 Function 6 1 Measuring principle Fig 6 1 Fig 6 2 D The unit operates on the principle of guided wave radar It measures the level using electromagnetic pulses in the nanosecond range The pulses are transmitted by the sensor head and guided along the probe Fig 6 1 When they hit the medium to be detected they are reflected and guided back to the sensor Fig 6 2 The time between transmitting and rec...

Page 9: ...eased foam build up 11 2 3 Tank adjustment enables suppression of undesired interference e g caused by structures in the tank or when mounted in a connection piece 11 2 4 Display of the level and the switching status via display LEDs IO Link function 6 3 7 6 3 1 Display functions The unit displays the current level either in mm or in percent of the scaled measuring range Factory setting mm The dis...

Page 10: ...nalogue start point ASP2 defines at which measured value the analogue start value is provided 11 4 7 The analogue end point AEP2 defines at which measured value the analogue end value is provided 11 4 7 The analogue start value is 4 mA with ou2 I or 20 mA with ou2 InEG The analogue end value is 20 mA with ou2 I or 4 mA with ou2 InEG Minimum distance between ASP2 and AEP2 20 of the active zone Curv...

Page 11: ...tting A active zone probe length L I1 I2 ou2 InEG I1 inactive zone 1 ASP2 analogue start point I2 inactive zone 2 Technical data sheet AEP2 analogue end point Additional information about the analogue output 12 8 Note the tolerances and accuracies during the evaluation of the analogue signal Technical data sheet ...

Page 12: ... function normally open Fig 6 4 oux Fno Window function normally closed Fig 6 4 oux Fnc The width of the window can be set by means of the difference between FHx and FLx FHx upper value FLx lower value Fig 6 3 Fig 6 4 SP rP t L FH FL 1 0 1 0 FE Fno Fnc L HY FE level hysteresis window The adjustable limits e g SP rP always refer to the lower edge of the probe For the switching output a switch on an...

Page 13: ... for each output If a fault is detected or if the signal quality is below a minimum value the outputs pass into a defined state according to NAMUR recommendation in case of the analogue output For this case the response of the outputs can be set via the parameters FOU1 FOU2 11 4 9 Temporary loss of signal caused e g by turbulence or foam build up can be suppressed by a delay time parameter dFo 11 ...

Page 14: ...resses and the necessary information about required IO Link hardware and software can be found at www ifm com 6 3 8 Simulation functions Various levels and errors can be simulated for set up maintenance or interference reduction The duration of the simulation can be selected 1 min 1 h The simulation can be started manually and runs until it is stopped manually or the set time elapses During the si...

Page 15: ...her sensors type LR D ø 30 mm if installed in a connection piece D no connection piece allowed according to Fig 7 2 Alternatively Fix probe at the tank bottom Observe notes 7 2 3 7 2 2 Installation in pipes The internal pipe diameter d must at least have the following value d With adjustment Without adjustment Metal pipe ø 30 mm ø 100 mm with MEdI HIGH ø 200 mm with MEdI MId 11 2 3 Plastic pipe ø ...

Page 16: ... the lateral deflection to be expected If possible fix the probe at the tank bottom so that it is electrically conductive This can be done by means of a sleeve or similar devices Fig 7 3 Check the correct function in particular with empty tank Fig 7 3 7 2 4 Fill openings Do not install the unit in the immediate vicinity of a fill opening Fig 7 4 If possible install a fill pipe A in the tank Fig 7 ...

Page 17: ...xamples how to create a steady area Use of a coaxial probe only for clean low viscosity media Installation in bypass or still pipe Fig 7 6 Separation of the installation location by metal sheets perforated sheets without figure Fig 7 6 d d A B C D d minimum diameter 7 2 2 The upper access to the steady area A B must be above the max level The lower access C D or the area with perforated sheet must...

Page 18: ...distance starting from the process connection interfering reflections are compensated Select an adjustment distance a so that the connection piece S and structures in the tank B are completely detected Observe safety distance b 250 mm to the level or the end of the probe b a B S a b S B adjustment distance min 10 mm max L 250 mm safety distance to the level or the end of the probe b 250 mm connect...

Page 19: ...IO Link After a replacement it must be carried out again More information about data storage 16 2 7 3 Unit with coaxial probe No minimum distances to the tank wall and structures in the tank 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 Do not install the unit in the immediate vicinity of a fill opening No water ...

Page 20: ...n can be rotated without restriction Even if rotated several times there is no risk of damage to the unit In case of high mechanical stress strong vibration moving viscous media it may be necessary to secure the screw connection e g by a screw retaining compound 6 Substances such as screw retaining compounds may migrate into the medium Make sure that they are harmless When using mechanical means o...

Page 21: ...hortened 7 5 2 Slide the supplied flat seal A onto the thread The elastomer seal may remain on the unit Slide the coaxial pipe B onto the probe Carefully centre it and carefully move the probe through the centring piece C for lengths 1400 mm through both centring pieces of the coaxial pipe Do not damage the centring pieces Screw onto the sensor thread and tighten Recommended tightening torque 35 N...

Page 22: ...t probe lengths below 150 mm For probe lengths 260 mm no tank adjustment is possible 7 2 7 Proceed as follows Screw the probe to the unit Mark the desired length L on the probe The reference point is the lower edge of the process connection Fig 7 8 Remove the probe from the unit Shorten the probe at the mark Remove all burrs and sharp edges Screw the probe to the unit again and tighten it 7 4 1 Fi...

Page 23: ...ove fastening bracket and centring piece A B Shorten the coaxial pipe to the requested length LK L 9 mm After shortening at least one hole C for insertion of the fixing bracket has to be left Remove all burrs and sharp edges Insert centring piece A at the lower end of the pipe for lengths 1400 mm use a second centring piece in the middle of the pipe and attach it using the fixing bracket B at the ...

Page 24: ...elated to extreme machine and medium temperatures For installation in closed metal tanks the tank lid serves as a launching plate R Fig 7 10 Fig 7 12 Notes 12 1 Options are as follows Installation to G process connection directly in the tank lid 7 6 1 Installation in the tank lid using a flange plate e g for tanks with thin walls 7 6 2 During installation of the process connection on the tank lid ...

Page 25: ...Nm Fig 7 10 R 7 6 2 Installation in the tank lid using a G flange plate Fig 7 11 Fig 7 12 d A R Arrange for a bore hole in the tank lid It must have a minimum diameter d to enable sufficient transfer of the measured signal to the probe Fig 7 11 The diameter d depends on the wall thickness of the tank lid Wall thickness mm 1 5 5 8 8 11 d mm 35 45 55 Install the flange plate with G process connectio...

Page 26: ...l tanks use a metal fixture with G process connection to install the unit It serves as a launching plate R minimum size 150 x 150 mm for a square fixture 150 mm diameter for a circular fixture 12 1 If possible mount the unit in the middle of the fixture Adhere to the specified installation distances according to 7 2 if necessary carry out tank adjustment D1 R D1 R min 150 mm launching plate Access...

Page 27: ...um distance 80 mm between the probe and the tank wall Adhere to the installation instructions 7 2 2 to 7 2 6 if necessary carry out a tank adjustment When installed in plastic tanks there may be deterioration caused by electromagnetic interference from other devices Possible remedies Attach a large surface metal screen at the outside of the tank Check grounding concept if necessary change Eliminat...

Page 28: ...ng material e g PTFE tape to the thread of the coaxial pipe Insert the unit with the coaxial pipe into the tank Tighten it using a spanner Tightening torque 35 Nm 7 8 Alignment of the sensor housing The sensor housing cannot be rotated with respect to the internal thread Subsequent alignment of the sensor housing is therefore not possible Therefore the subsequent orientation of the housing display...

Page 29: ... WH BK BU 4 1 3 2 OUT2 L L OUT1 BK black BN brown BU blue WH white OUT1 switching output IO Link OUT2 analogue output or switching output Colours to DIN EN 60947 5 2 Example circuits 2 x positive switching 2 x negative switching L L 3 4 2 1 BU BK WH BN 2 OUT2 4 OUT1 L L 3 4 2 1 BU BK WH BN 2 OUT2 4 OUT1 1 x positive switching 1 x analogue 1 x negative switching 1 x analogue L L 3 4 2 1 BU BK WH BN...

Page 30: ...us OUT2 on when output 2 is switched LED 8 Switching status OUT1 on when output 1 is switched 9 Enter button Open the user menu Edit and confirm the parameter values 10 to 11 Arrow keys up and down Selection of the parameters Setting of the parameter values continuously by holding pressed incrementally by pressing once 12 Alphanumeric display 4 digits Display of the current level Display of the pa...

Page 31: ...re Menu items highlighted in grey e g SP2 are only active when assigned parameters have been selected 10 2 1 RUN mm 30s E E I E E E E E E E E E E E E E E E E E E E E E E E E E E E E E 3 E 1 2 II I II main menu 10 2 1 EF level 10 2 2 ...

Page 32: ... grey e g dS2 are only active when assigned parameters have been selected 10 2 3 E E E E E E E E 1 III 2 IV E E E E E E E 3 V E E E E E E E E E E E E E E E E E E E E E E III IV V CFG level 10 2 3 ENV level 10 2 4 SIM level 10 2 5 ...

Page 33: ...visible if analogue output is selected ou2 I or InEG AEP2 Analogue end point 2 measured value at which the analogue end value is provided The analogue end value is set with parameter ou2 Menu item only visible if analogue output is selected ou2 I or InEG SP2 rP2 Set point 2 reset point 2 at which OUT2 switches Menu item only visible if hysteresis function is selected ou1 H FH2 FL2 Upper lower limi...

Page 34: ...e switching outputs pnp or npn FOU1 Response of OUT1 in case of a fault FOU2 Response of OUT2 in case of a fault SELd Selection of the type of indication dAP Damping of the measured signal mean filter dFo Delay time for the outputs to pass into the state defined with FOUx only effective in case of a fault Menu item only visible with hysteresis or window function ou2 H or F 10 2 4 ENV level environ...

Page 35: ...s or for at least 1 s After 1 s Setting value is changed incrementally by pressing the button once or continuously by keeping the button pressed Numerical values are incremented continuously with or decremented with 3 Acknowledge parameter value Press Enter The parameter is displayed again The new setting value is saved Set other parameters Press or until the required parameter is displayed Finish...

Page 36: ...ting the unit returns to the process value display with unchanged values Lock unlock The unit can be locked electronically to prevent unintentional settings Factory setting not locked Make sure that the unit is in the normal operating mode Press simultaneously for 10 s Loc is displayed 10 s During operation Loc is briefly displayed if you try to change parameter values For unlocking Press simultan...

Page 37: ... of water and water based media is possible with the single probe as well as with the coaxial probe The detection of oils and oil based media is only possible with the coaxial probe 11 2 2 Enter probe length Select LEnG Press Enter nonE is displayed Press or for at least 1 s After 1 s the unit automatically displays the detected probe length preset function Correct the probe length if necessary wi...

Page 38: ... g when mounted in a connection piece carry out a tank adjustment parameter tREF and set parameters to adapt to the application Setting ranges of all parameters 13 1 Factory settings of all parameters 15 11 2 4 Carry out tank adjustment Menu item only visible if LEnG 260 mm and Prob rod Observe notes 7 2 7 Select tREF Press Enter nonE or the value saved from the last tank adjustment distance value...

Page 39: ...function normally closed Fno Window function normally open Fnc Window function normally closed Note If the switching output is used as an overflow prevention the setting ou1 Hnc normally closed function is recommended The principle of normally closed operation ensures that wire break or cable break is also detected 11 4 2 Set switching limits hysteresis function Make sure that the function Hno or ...

Page 40: ...used 11 4 6 Set output function for OUT2 Select ou2 and set the switching function I Current output 4 20 mA InEG Current output 20 4 mA Hno Hysteresis function normally open Hnc Hysteresis function normally closed Fno Window function normally open Fnc Window function normally closed Note If the switching output is used as an overflow prevention the setting ou2 Hnc normally closed function is recom...

Page 41: ...ured signal Select dAP and set damping in seconds setting range 0 0 60 0 s More information 6 3 4 11 4 11 Set delay time in case of a fault Select dFo and set a value between 0 10 0 s dFo only effective in case of a fault Mind the dynamics of your application In case of fast level changes it is recommended to adapt the value step by step More information 6 3 6 11 5 Reset all parameters to factory ...

Page 42: ...h Select LEnG and set probe length L Press Enter Note After changing the probe length the values for the switching limits must also be reviewed re entered More information 11 2 2 After changing the probe length a tank adjustment already made is deleted 7 2 7 11 6 3 Set to another medium Select MEdI and set HIGH For water and water based media MId For water based media and media with a mean dielect...

Page 43: ...ation off On simulation on Press Enter to start the simulation Simulation active until Enter is pressed again or the time set via S Tim elapses During the simulation SIM is displayed every 3 s After the simulation the unit returns to the parameter S On and internally the unit returns to the operating mode and the process value transmission After another 30 s the display changes to the process valu...

Page 44: ...tion with single probe minimum distances to tank walls and structures in the tank must be adhered to 7 2 12 2 Operation with coaxial probe The coaxial probe is made up of an inner probe and an outer probe pipe coaxial pipe The probe is centred in the coaxial pipe by one or several spacers In case of operation with a coaxial probe media with a low dielectric constant e g oil and oil based media are...

Page 45: ...XXX alternately Simulation active XXX state to be simulated 11 7 S On Simulation stopped 11 7 Loc Unit locked via buttons parameter setting is not possible For unlocking press the two setting buttons for 10 s uLoc Unit is unlocked parameter setting is possible again C Loc The unit is temporarily locked Parameter setting via IO Link active S Loc Unit is permanently locked via software This locking ...

Page 46: ...or turbulence Install the unit in a still pipe or bypass 7 1 Set increment dFo 11 4 11 Measurement disturbed by separation layers e g oil layer on water Remove oil by suction Stir the medium Check the composition Probe or process connection soiled Clean the probe and the process connection Installation conditions not adhered to Follow the installation instructions 7 Carry out or repeat a tank adju...

Page 47: ...h ou2 InEG 4 3 8 mA Empty signal With ou2 I 4 3 8 mA With ou2 InEG 20 20 5 mA 13 Technical data Technical data and scale drawing at www ifm com 13 1 Setting ranges LEnG mm Setting range 150 2000 Step increment 5 The setting ranges for the switching limits SPx rPx FHx FLx depend on the probe length L In general the following applies mm min max SPx FHx 15 35 L 30 rPx FLx 10 30 L 35 Step increment 1 ...

Page 48: ... with coaxial probe Ensure that the vent hole at the upper end of the coaxial pipe remains free Keep the interior of the coaxial pipe free from foreign bodies and soiling When the medium is changed it may also be necessary to adapt the unit settings 11 2 3 Only if data storage is required in an IO Link application The tank adjustment is not saved via IO Link After a replacement it must be carried ...

Page 49: ...0 VMR AEP2 100 VMR dS1 0 0 dr1 0 0 ou1 Hno ou2 I P n nPn FOU1 OFF FOU2 OFF SELd L dAP 0 0 dFo 3 0 Prob nonE LEnG nonE MEdl nonE S LVL 50 LEnG S Tim 3 S On OFF VMR final value of the measuring range LEnG value minus 30 in millimetres When the LEnG value is entered the unit calculates the basic setting ...

Page 50: ...t value Operating mode is optimised for media with increased foam build up LOW For oils and oil based media Transfer the sensor data to the unit Carry out tank adjustment depending on the installation parameter tREF or button TEACH_TANK_REF If the adjustment distance parameter RefDist is to be adapted this individual parameter has to be sent to the sensor first Then the tank adjustment can be carr...

Page 51: ...ed in the master data storage When a sensor is replaced by a sensor of the same type the parameters of the old sensor are automatically written to the new sensor if configured in the master and if the new sensor has the factory settings For safety reasons the parameter download can be refused by the sensor Factory setting Open Data storage Open unit allows parameter download from the master Locked...

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