Operating instructions Electronic level sensor LR7000 706105 / 00
Contents
1. gt Slide the sensor seal A onto the thread gt Slide the coaxial pipe B onto the rod Carefully center it and carefully move the rod through the centring piece C for lengths gt 140 cm through both centring pieces of the coaxial pipe Do not damage the centring pieces gt Screw onto the sensor thread and tighten 6 3 Shortening of the probe 6 3 1 Shortening of the rod The rod can be shortened to adapt to different tank heights Ensure that the probe length is never below the minimum permissible probe length of 10 cm Lyin The unit does not support probe lengths below 10 cm If shorter probes are used measurement errors can occur Proceed as follows gt Screw the rod to the unit gt Mark the desired length L on the rod The reference point is the lower edge of the process connection 17 gt Remove the rod from the unit gt Shorten the rod gt Remove all burrs and sharp edges gt Screw the rod to the unit again and tighten it Recommended tightening torque 4Nm gt Precisely measure the probe length L note the value It must be entered during parameter setting of the unit 10 2 6 3 2 Shortening of the coaxial pipe The coaxial pipe and the rod must be of the same end length gt Remove fastening bracket and centring piece A B gt Shorten the coaxial pipe to the requested length Lk L 9 mm gt After shortening at least one hole C for insertion of the fixin2. 3 Entering the type of probe used ee ee ee ek ee RR ee Ee RR Ee 10 3 Configuration of the display ee RE REEKS Re AR GARDE EER Ee 10 4 Offset setting ee ee ee Re Ge RR Re AA Re GR Re Ge RA Ge AA Ge AA Re EA ee 10 5 Setting of output signals e ee see se se Ee Re Ge Re De ER ER Ge EA EA Ee AA Ee De Ee 10 5 1 Setting of the output funCHON ee ee ee ek ee ER Re AR ee AR Ee 10 5 2 Setting of switching limits hysteresis function 10 5 3 Setting of switching limits Window function ee ee ee 10 5 4 Setting of the switch off delay ccs 10 5 5 Response of the outputs in case of a fault ee ee ee ee 10 5 6 Setting of the delay time after Signal lOSS ccccceeseesecseseeeeeees 10 6 Reset all parameters to factory setting ee ee ee RR RR Ge Re 10 7 Changing Basie Settings ie Ne EE EE GE Re ve EE 10 7 1 New entering of the probe length ee ee se ee AR Ee Ee RR 10 7 2 Setting to another medium ee ee ee ee ek ee Ge Re AR Ee ee RA 10 7 3 New entering of the type of probe used ee se ee ee ee Ms CEU sg N AE EA EE EE N 11 1 Operating indicators no ee EE ED ER Re ED EG 11 2 Reading the set parameters sees ee ee AR ee ek AA Ee N AE Ge AE EA Ee 11 3 Changing the display unit in the Run mode ees ee ee Re Ee 11A ariede ele ER N OE EN 11 5 Output response in different operating states ee ese ee se ee ee ee Poe WIWIN OR EE Ee OE N N EE See oe le ee AO N Oe ON 13 1 Su ek ie EE N N OE EE of 14 Maintenance is e
3. Error indications s Possiblecause Recommended measures E 000 Fault in the electronics Replace the unit Probe detached from the unit Check whether the probe is still E 031 possibly incorrect setting of the attached to the unit probe length Check the parameter LEnG Measurement disturbed by e Install the unit in a still pipe or bypass foam formation or strong e Set or increment dFo turbulence 10 5 6 Measurement disturbed by separation layers e g oil layer on water E 033 Rod or process connection Clean the rod and the process soiled connection carry out a reset Installation conditions were not Observe the notes in Installation adhered to 6 Probe length type of probe or sensitivity setting to the medium is incorrect Check the dynamics if necessary use E 034 Atypical abrupt level changes a still pipe or bypass then carry out a reset SCx bes or Remove the short circuit SC switching outputs Remove the short circuit Flashing short circuit in all l PArA Faulty data set Reset to factory settings 10 6 The unit carries out plausibility checks to increase the operational reliability Atypical level changes can be caused e g by contact with the rod or by heavy soiling or turbulence With the parameter dFo the response of the unit can be delayed 10 5 6 Carry out a reset power off and on again after rectifying the fault to reset the
4. fill opening No water jets must enter into the holes of the coaxial pipe Note in case of foam formation the vent of the coaxial pipe must be above the maximum level The lower edge of the coaxial pipe must be below the minimum level 6 2 Installation of the probe Rod and coaxial pipe are not included in the scope of delivery They must be ordered separately 3 Items supplied 6 2 1 Installation of the rod Fixing of the rod gt Screw the rod to the unit and tighten it Recommended tightening torque 4 Nm For ease of installation and removal the rod connection can be rotated without restriction Even if rotated several times there is no risk of damage to the unit Lmin 10 cm 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 16 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 The coaxial pipe and the rod must be of the same end length The coaxial pipe can be shortened 6 3 2 gt Screw the rod to the unit and tighten it Recommended tightening torque 4Nm
5. set up operation and maintenance of the unit must only be carried out by qualified personnel authorised by the machine operator 3 Items supplied e Level sensor LR7000 e Operating instructions In addition the following is necessary for installation and operation UK e 1 rod for operation of the unit with single probe 4 1 e plus 1 coaxial pipe for operation of the unit with coaxial probe 4 2 e mounting material if necessary a launching plate 4 1 The following components are available as accessories 160 63 0 E43210 Coaxial pipes with G process connection Coaxial pipes with NPT EE Flange plates 73 90 1 NPT Only use rods and coaxial pipes from ifm electronic gmbh The optimum function is not ensured when using components from other manufacturers 4 Functions and features The unit continuously detects the level in tanks and generates output signals according to the parameter settings 2 switching outputs are available They can be set separately 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 when used with single probe the unit needs a large enough metal launching plate It is necessary for transferring the microwave pulse to the tank with optimum transmission power The flange plates that are ava
6. 2 Installation in closed metal tanks with flange plage Flange plates are not supplied They must be ordered separately 3 gt 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 6 8 The diameter depends on the wall thickness of the tank lid Wall thickness mm 8 11 Bore hole diameter mm gt Install the flange plate with the flat surface showing to the tank and fix it with appropriate screws A seal B in fig 6 9 can be inserted between flange plate and tank Some flange plates are supplied with seal gt Ensure cleanness and evenness of the sealing areas especially if the tank is under pressure Tighten the fixing screws sufficiently gt Screw the unit into the flange plate using the process connection and tighten firmly gt Make sure that the supplied sensor seal A in fig 6 9 is correctly positioned 6 4 3 Installation in open tanks gt For installation in open tanks use a metal fixture 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 gt If possible mount the unit in the middle of the fixture The distance D2 must not be below 40 mn higher for probe lengths gt 70 cm and in case of heavy soiling 6 1 1 20 gt The lower edge of the process connection should be flush with the installation enviro
7. 2 Maximum value exceeded alarm Slightly below SP2 to suppress wave movements Hysteresis function normally closed Hnc XX X display value A emptying B overflow protection e If SP1 is exceeded output 1 switches submersible pump ON If the level is below rP1 again output 1 switches off submersible pump OFF e If SP2 is exceeded or if there is a wire break output 2 switches off 39 15 3 Storage tank Monitoring of the acceptable range alarm and level control Switching output 1 refilling Upper preset value reached finish refilling rPI Below lower preset value start refilling Hysteresis function normally closed Hnc Switching output 2 safety function min max Max value exceeded alarm Below min value alarm Window function normally open Fno XX X display value A refill B min monitoring C max monitoring e f the level is below rP1 output 1 switches until liquid is refilled If SP1 is reached again output 1 switches off e f the level is below FL2 or above FH2 or if there is a wire break output 2 switches OFF alarm e The logical operation between the outputs 1 and 2 indicates whether there is overflow or the actual level is below the minimum level Overflow output 1 and output 2 switched off Below min value output 1 switched on and output 2 switched off 40 16 Factory setting SP FHmax LEnG value minus 3 rP FLmax LEnG
8. CE 01 2012 706105 00 ifm electronic Operating instructions Electronic level sensor efectoriso LR7000 Tel 44 0 191 490 1547 THORNE amp Fax 44 0 191 4775371 Email northernsales thorneandderrick co uk DERRICK UK weste nvunestracngcout www thorneanderrick co uk Contents TF MEUM Se OR OE OER Oe A 1 1 Symbols oe ER eee N 4 2 ale DS UCC 6 oe EE N Ee een oe DE ee 4 3 lems SUDDIGd ee eee EE ee eee ee eS meee rene 5 4 F nctons and features EE EE EE EE EE 6 4 1 Operation with single probe iese ee ee ee ee Ge ee ee Ge ee ee ee ee ee 6 4 2 Operation with coaxial DODE os EER ER EG EK ED EK GE AE ES 7 9 PD OIG ANON ee E E EE T 4 3 1 Restriction of the application area ese ee ee ee ee ee Re Ee ee 8 S He Ee AE EE EE N 9 5 1 TONE as NING OI CIN as N EE 9 5 2 Features of the UI iese gegee ER ER BEREKEN ee ie EE 10 92 1 EASy SENDE ees ee RR EE GE EG ER Ee EE a Ee 10 5 2 2 Display TUNG HONS ie ee Ede 10 5 2 9 SWItChINg HNGUOIS ss ven Re Re Ag aeaea 10 5 2 4 Offset for indicating the real level in the tanK ee ees ee se ee se ee ee 11 5 2 5 Probes for different tank heightS ees ee se see ee Ee RR AR Re Re 11 PAR SEER EE EN OE AE T 11 9 2 1 1O Link communication parameter setting evaluation c0 12 Os NS All eN EE OE N DE EE 13 6 1 Installation location environment ee ee ee ee ee ee ee ee ee 13 6 1 1 URE WIT SNOS ODE os RE EG EE N GE 13 6 1 2 Unit with coaxial prob
9. coaxial probe 4 3 1 Restriction of the application area The unit is not suitable for bulk materials e g plastic granulates If the unit is to be used in acids or alkalis in hygienic areas or in electroplating applications first check the compatibility of the product materials 13 Technical data with the media to be monitored Incorrect measurements or signal loss may be caused by the following media Highly absorbing surfaces e g foam Intensely bubbling surfaces Media which are very inhomogeneous separate from each other thus forming separation layers e g oil layer on water gt Check the function by an application test gt Incase of signal loss the unit displays E 033 and switches the outputs to a defined state 11 5 The unit is not suitable for applications where the probe is subjected to permanent and high mechanical stress e g strongly moving viscous media or strongly flowing media In case of operation with single probe use preferably in metal tanks When installed in plastic tanks deterioration caused by electromagnetic interference may occur noise immunity to EN61000 6 2 Remedy 6 4 4 In case of operation with coaxial probe not suitable for viscous media and media prone to formation of deposit Maximum viscosity 500 mPa s 5 Function 5 1 Measuring principle The unit operates to the principle of guided wave radar It measures the level using electromagnetic p
10. e C ie IE loth ER OD OR EE ee 0 80 AN A ANS A A AA NE POEA 0 90 Storage temperature C Shock resistance g 50 DIN IEC 68 2 27 11 ms ibrati 5 DIN IEC 68 2 6 10 2000 Hz IEC 60947 1 FS full scale in mm FS L 30 mm 12 Scale drawing 36 13 1 Setting ranges LEnG Setting range Step increment OFS Setting range Step increment The setting ranges for the switching limits SPx rPx FHx FLx depend on the probe length L In general the following applies cm min max L 35 The values apply if OFS 0 The values in brackets apply to the setting MEdI LOW setting for the detection of oils and oil based media e rPx FLx is always lower than SPx FHx If the value for SPx FHx is reduced to a value rPx FLx the position of rPx FLx also shifts If rPx FLx and SPx FHx are close together approx 3 x step increment rPX FLX is changed automatically when SPx FHx is increased e If there is a greater distance between rPx FLx and SPx FHx rPx FLx maintains the set value even if SPx FHx is increased 14 Maintenance gt Keep the process connection free of deposits and foreign bodies gt In case of heavy soiling clean the process connection and the probe at regular intervals In case of long operation separation layers can form in the medium e g oil on water This applies especially to still pipes or bypasses gt Remove separat
11. e EE EE ER NG GE EG ee 16 6 2 Installation of the probe ese ee ee RE ee eo ee RE ee 16 6 2 1 Installation of the rod i ee ee ee ee ee ee Ge N ee ee ee ee 16 6 2 2 Installation of the coaxial pipe e ee ee ee ee ee ee 17 6 3 Shortening of the Probe ee ee RR Re Ge Re Ee ee Re AR Re ee Re 17 6 3 1 Shortening OF the rod uie issie RR gee Eks Es RE ses RE Re RR Be Ee eke sk Ee EE 17 6 3 2 Shortening of the coaxial pipe e ee ee ee ee RR ee RR ee ee ee 18 6 4 Installation of the unit with single probe iese ee Re Ge Re Ge Re 19 6 4 1 Installation in closed metal tanks without flange plate 19 6 4 2 Installation in closed metal tanks with flange plage 20 6 4 3 Installation in open tanks c cc eccsesscesecsscsseessseessessecessessesaseesseeasees 20 6 4 4 Installation in plastic tanks ccccscccsescecssssssesssessesssssssesseeessesetees 21 6 5 Installation of the unit with coaxial probe in the tank ccccececeeeeeeeeeees 6 6 Alignment of the sensor housing ee ee ee ee RR ee RR ee RR Ge Re T Eleelilesteonmeel OR ooi ee Ge Ge ee eo ee OE Ge GE MERS REINE eise ES GR GE GR Ge ee OZ Elmo On ie MERE a ee RS ES Ges oue EE EE 10 1 General parameter setting ese ee ee Ge Re De RR Ge Ak Re AA Re Ee Ee 10 2 Basie settings unit on delivery EER EER NE AE Ee ee 10 2 1 Entering the probe length ee ee ee Ge Ee EA Ge Re ee EA ee Ee AE 10 2 2 Setting io the media os ss ER EE N Re EE EE 10 2
12. ee Toe ee gt Press Mode Enter Set for 10 s aa A gt Loc is displayed os During operation gt Loc is briefly displayed if you try to change parameter values For unlocking gt Press Mode Enter Set for 10 s BeBe D gt uLoc is displayed Eg Fi os Setting at the factory unlocked e Timeout If no button is pressed for 15 s during parameter setting the unit returns to the operating mode with unchanged values 28 10 2 Basic settings unit on delivery On delivery of the unit you must first enter the basic settings The complete parameter setting menu cannot be accessed before this 1 Malfunctions may occur if wrong basic settings are entered 10 2 1 Entering the probe length gt Apply operating voltage gt The initial display is shown gt Change to menu level 2 gt Select LEnG press Set for 5 s gt non is displayed gt Enter the probe length in cm Remarks on the determination of the probe length 10 7 1 gt Press Mode Enter briefly 10 2 2 Setting to the medium gt Select MEdI press Set for 5 s gt non is displayed gt Set the requested value HIGH for water and water based media LOW for oils and oil based media Note In case of doubt carry out an application test to ensure the setting which is best for your medium 10 2 3 Entering the type of probe used gt Select Prob press Set for 5 s gt n
13. en it 6 6 Alignment of the sensor housing After installation the sensor housing can be aligned It can be rotated without restriction Even if rotated several times there is no risk of damage to the unit 7 Electrical connection The unit must be connected by a qualified electrician The national and international regulations for the installation of electrical equipment must be adhered to Voltage supply according to EN 50178 SELV PELV gt Disconnect power gt Connect the unit as follows 22 1 p OUT2 0UT1 lO Link lL brown 3 Up N bwe 2 4 3 When the unit is supplied with operating voltage for the first time the probe length the medium to be detected and the type of probe used must be entered Only then is the unit ready for operation 10 2 23 8 Operating and display elements OO 000000 1 to 8 indicator LEDs LED 1 green indication of the level in cm LED 2 green indication of the level in inch LED 3 green indication of the level in of the final value of the measuring range LED 4 LED 6 not used LED 7 yellow output 1 is switched LED 8 yellow output 2 is switched 9 alphanumeric display 4 digits Indication of the current level Operation and fault indication Indication of the parameters and parameter values 10 Set button Setting of the parameter values scrolling by holding pressed incrementally by pr
14. error message Remove the oil layer by suction stir the medium verify the composition Correct the settings 10 2 then carry out a reset 11 5 Output response in different operating states OUT1 OUT2 Initialisation according to the level and according to the level and OU1 setting OU2 setting OFF for FOU1 OFF OFF for FOU2 OFF ON for FOU1 on ON for FOU2 on Normal operation Fault E 0xx Dimensions in mm 1 display 2 status LEDs 3 programming buttons 4 seal 35 HT od Wo WA WE WA va Aactivezone 6 L 4 L 6 2419 L 16 24 cos zone a EE 2 naetvezone2 1 A The values in brackets apply to the setting MEdI LOW setting for the detection of oils and oil based media 13 Technical data Operating voltage V Current rating mA Short circuit protection pulsed protected against reverse polarity and overload max 10 s Voltage drop V Current consumption mA Communication interface Baud rate kBaud Switch point accuracy MM sesse sesse seen de ese es Rd oe de 15 0 5 FS seels dl BR EE AE 5 Max speed of the level change mm s Dielectric constant medium Max tank pressure bar Housing material stainless steel 304 1 4301 FPM Viton PBT PC PEI TPE V PTFE Materials in contact with the medium stainless steel 303 1 4305 PTFE FPM Viton Protection Ambient temperature OE ase ee eo EER ee ed Dee ee 0 60 Medium temperatur
15. essing once Change between cm inch indication and percent indication in the normal operating mode Run mode 11 Mode Enter button Selection of the parameters and acknowledgement of the parameter values 24 9 1 Menu structure 9 Menu PRAHA AHS sce i ip is F Tr So Was 6 se sk se ede J G d 29 9 2 Explanation of the menu SPAIP FHL SP2 rP2 FHIFL2 OUx Output function for OUTx e Switching signal for the level limit values hysteresis function H or window function F either normally open no or normally closed nc Offset value for level measurement Extended functions opening of menu level 2 rES Restore factory settings dr1 Switch off delay for OUT1 The menu item is only active if OU1 Hno or Hnc dr2 Switch off delay for OUT2 The menu item is only active if OU2 Hno or Hnc OFS EF FOU1 Response of OUT1 in case of a fault FOU2 Response of OUT2 in case of a fault dFo Delay time for switching response OUTx Uni Unit of measurement cm or inch SELd Type of indication LEnG Probe length MEdI Medium to be detected Prob Type of probe used single probe or coaxial probe The menu item is only active if MEdl HIGH 26 10 Parameter setting During parameter setting the unit remains in the operating mode internally It continues its monitoring function with the existing parameters until the parameter setting has been comple
16. g bracket has to be left gt Remove all burrs and sharp edges gt Insert centring piece A at the lower end of the pipe and attach it using the fixing bracket B at the lower hole C Lx length of the coaxial pipe L length of the rod from the lower edge of the process connection 18 6 4 Installation of the unit with single probe For the correct function when used with single probe the unit needs a large enough metal launching plate It is necessary for transferring the microwave pulse to the tank with optimum transmission power The flange plates that are available as accessories are not sufficient as launching plates For installation in closed metal tanks the tank lid serves as a launching plate R in fig 6 5 and 6 9 2 ways of installation are possible Screw in a G process connection in the tank lid 6 4 1 e Installation in the tank lid using a flange plate e g for tanks with thin walls gt 6 4 2 Furthermore installation in open tanks 6 4 3 and plastic tanks is possible 6 4 4 6 4 1 Installation in closed metal tanks without flange plate gt The lower edge of the process connection should be flush with the installation environment fig 6 5 gt Avoid non flush installation fig 6 6 gt Use seals or washers D in fig 6 7 to reach the required height gt For tanks with thick walls arrange for sufficiently deep recesses to ensure flush installation 6 4
17. g limits shift by the value of the set offset 10 5 Setting of output signals 10 5 1 Setting of the output function gt Select OU1 OU2 and set the switching function Hno hysteresis function NO Hnc hysteresis function NC Fno window function NO Fnc window function NC Note If the upper switch point is used as an overflow protection the setting OUx Hnc NC function is recommended The principle of normally closed operation ensures that wire break or cable break is also detected 10 5 2 Setting of switching limits hysteresis function gt Make sure that for OU1 or OU2 the function Hno or Hnc is set gt Select SP1 SP2 and set the value at which the output switches 30 10 5 3 Setting of switching limits window function gt Make sure that for OU1 or OU2 the function Fno or Fnc is set gt Select FH1 FH2 and set the upper limit of the acceptable range gt Select rP1 rP2 and set the value at which the output switches off rPx is always lower than SPx The unit only accepts values which are lower than the value for SPx gt Select FL1 FL2 and set the lower limit of the acceptable range E l FLx is always lower than FHx The unit only accepts values which are lower If than the value for FHx H L r 10 5 4 Setting of the switch off delay gt Select drt dr2 and set the value between 0 2 and 60 s At 0 0 factory setting t
18. gt Press Set briefly gt The selected unit is displayed for 15 s the corresponding LED is lit With each push of the button the display type is changed The set unit of measurement and the switching status of the outputs are indicated by LEDs 5 2 3 Switching functions The unit signals via two switching outputs OUT1 OUT2 that a set limit level has been reached or that the level is below the limit value For each output the following switching functions can be selected e Hysteresis function normally open fig 5 3 OU Hno e Hysteresis function normally closed fig 5 3 OU Hnc First the set point SPx is set then the reset point rPx with the requested difference 10 e Window function normally open fig 5 4 OUx Fno e Window function normally closed fig 5 4 OUx Frc The width of the window can be set by means of the difference between FHx and FLx FHx upper value FLx lower value SP HY FH rP EL t i o Hno t Fno 0 Hne i Fne L level HY hysteresis FE window e For each switching output a switch off delay of max 60 s can be set e g for especially long pump cycles 5 2 4 Offset for indicating the real level in the tank The zone between tank bottom and lower edge of the probe can be entered as offset value OFS So display and switch points refer to the actual level 5 2 5 Probes for different tank heights e The unit can be installed in tanks of diffe
19. he delay time is not active The switch off delay is only active if hysteresis has been set as switching function OUx Hno or Hno 10 5 5 Response of the outputs in case of a fault gt Select FOU1 FOU2 and set the value on output switches in case of a fault OFF output switches off in case of a fault Factory setting FOU1 and FOU2 OFF Faults faulty hardware too low a signal quality atypical level curve Overflow is not considered to be a fault 10 5 6 Setting of the delay time after signal loss gt Select dFo and set the value between 0 2 and 5 0 s At 0 0 factory setting the delay time is not active Mind the dynamics of your application In case of fast level changes it is recommended to adapt the value step by step 10 6 Reset all parameters to factory setting gt Select rES then press Set and keep it pressed until is displayed gt Press Mode Enter briefly gt The unit reboots and the factory settings are restored Note On delivery the unit is not operational First the basic settings must be entered 10 2 31 10 7 Changing basic settings Required after a factory reset rES and after changes to the probe or to the application area 10 7 1 New entering of the probe length Approach for single probes gt Measure the probe length L to a precision of 2 mm 0 1 inch L lower edge of the of process connection to the rod end gt Round up the
20. ilable as accessories are not sufficient as launching plates for suitable launching plates 6 4 For installation in closed metal tanks the tank lid serves as a launching plate 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 6 4 3 gt 6 4 4 UK For operation with single probe minimum distances to tank walls objects in the tank bottom of the tank and further level sensors must be adhered to 6 1 1 4 2 Operation with coaxial probe The coaxial probe is made up of an inner rod and an outer probe pipe coaxial pipe The rod is centered 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 2 No launching plate is reduired for operation with coaxial probe Furthermore no minimum distances to tank walls and objects in the tank are required 4 3 Applications e Water water based media e Oils oil based media only for operation with coaxial probe e Medium temperature 0 80 C permanent 0 90 C peak e Tank pressures 1 4 bar Application examples e Detection of coolant emulsion in a machine tool e Detection of cleaning liquid in a parts cleaning system e Monitoring of hydraulic oil in a hydraulic power unit only for operation with
21. ion layers at regular intervals gt Ensure that the vent hole at the upper end of the coaxial pipe remains free gt Keep the interior of the coaxial pipe free from foreign bodies and soiling 37 15 Applications 15 1 Minimum level monitoring with early warning and alarm Switching output 1 early warning Slightly above rP1 to suppress wave movements rP1 Below preset level early warning start refilling OU Hysteresis function normally closed Hnc Switching output 2 alarm Min value reached again alarm reset Below min value alarm OU2 Hysteresis function normally open Hno XX X display value A early warning B alarm e f the level is below rP1 output 1 switches until liquid is refilled If SP1 is reached again output 1 switches off e f the level is above SP2 output 2 switches If the level falls below rPs or if there is a wire break output 2 switches off e By setting SP1 the maximum level can be controlled monitored the value of SP1 determines up to which level max is to be refilled When the maximum 38 level is reached this is signalled by the LED OUT1 going out and output 1 switching off 15 2 Pumping station empty the tank with overflow protection Switching output 1 control to empty tank Upper value exceeded submersible pump ON Lower value reached submersible pump OFF Hysteresis function normally open Hno Switching output 2 overflow protection SP
22. measured value step increment 0 5 cm 0 2 inch gt Select LEnG and set the value setting range 10 0 160 0 cm 4 0 63 0 inch Approach for coaxial probes gt Measure the total length L of the coaxial probe to a precision of 2 mm 0 1 inch gt Deduct 9 mm from the measured value L Lk 9 mm gt Round up the measured value step increment 0 5 cm 0 2 inch gt Select LEnG and set the value setting range 10 0 160 0 cm 4 0 63 0 inch Note After changing the probe length the values for OFS and the switching limits must also be reviewed re entered 10 7 2 Setting to another medium gt Select MEdI and set the value HIGH for water and water based media LOW for oils and oil based media Note In case of doubt carry out an application test to ensure the setting which is best for your medium 10 7 3 New entering of the type of probe used gt Select Prob and set the value rod for single probe COAX for coaxial probe e The detection of water and water based media is possible with the single probe as well as with the coaxial probe e The detection of oils and oil based media is only possible with the coaxial probe Therefore the parameter Prob is not available in case of the setting MEdI LOW the value COAX is preset 32 11 Operation After power on the unit is in the Run mode normal operating mode It carries out its measurement a
23. nd evaluation functions and generates output signals according to the set parameters 11 1 Operating indicators Current level in of the final value of the measuring range Switching status of the corresponding output t1 Level below the active zone FULL numerical value Level has reached or exceeded the maximum measuring alternately range overflow warning CAL Initialisation phase after power on On delivery the unit is not operational Basic settings are re 10 2 Unit electronically locked parameter setting impossible For unlocking press the two setting buttons for 10 s Unit is unlocked parameter setting is possible again If S Loc is displayed when an attempt is made to modify a parameter value either an IO Link communication is active temporary locking or the sensor is permanently locked via software This locking can only be removed via a parameter setting software 11 2 Reading the set parameters gt Press Mode Enter briefly to scroll the parameters gt Press Set briefly to indicate the corresponding parameter value for about 15 s After another 15 s the unit returns to the Run mode 11 3 Changing the display unit in the Run mode switching between length indication cm inch and percentage gt Press Set briefly in the Run mode gt The selected unit is displayed for 15 s the corresponding LED is lit With each push of the button the display type is changed 33 11 4
24. nment see fig 6 5 gt Avoid non flush installation see 6 6 gt Use seals or washers see D in fig 6 7 to reach the required height 6 4 4 Installation in plastic tanks To enable sufficient transfer of the measured signal note in case of installation in plastic tanks or metal tanks with plastic lid gt Adrill hole with a minimum diameter of 150 mm must be applied to the plastic lid gt For installation of the unit a flange plate launching plate R must be used which sufficiently covers the drill hole gt Ensure the minimum distance 80 mm between rod and tank wall higher for probe lengths gt 70 cm and in case of heavy soiling 6 1 1 21 When installed in plastic tanks there may be deterioration caused by electromagnetic interference Remedy e Apply a metal foil to the outside of the tank e Apply a shielding screen between the level sensor and other electronic units e Operation with coaxial probe efficiently protects the unit from electromagnetic interference Please note the restrictions regarding the application area 4 3 6 5 Installation of the unit with coaxial probe in the tank gt Seal the process connection For pipes with G process connection slide the supplied seal onto the thread of the coaxial pipe For pipes with NPT process connection apply a suitable sealing material e g Teflon tape gt Screw the unit with the coaxial pipe into the tank and tight
25. onE is displayed gt Set the requested value rod for single probe COAX for coaxial probe e The detection of water and water based media is possible with the single probe as well as with the coaxial probe e The detection of oils and oil based media is only possible with the coaxial probe Therefore the value COAX is preset for the parameter Prob when setting MEdI LOW the value rod is not available Then the unit changes to the operating mode For further parameter setting the menu can be opened The parameters LEnG MEdI and Prob can be accessed and modified just like all other parameters 29 10 3 Configuration of the display gt Select Uni and set the unit of measurement cm inch Factory setting cm gt Select SELd and set type of indication L The level is indicated in cm or inch L The level is indicated in percent of the final value of the measuring range OFF The display is switched off in the operating mode When one of the buttons is pressed the current measured value is displayed for 15 s The LEDs remain active even if the display is deactivated 10 4 Offset setting gt Select OFS and enter the distance between bottom of the tank and lower edge of the probe Afterwards display and switch points refer to the real level Factory setting OFS 0 Note Set OFS before setting the switching limits SPx FHx rPx FLx Otherwise the switchin
26. rent sizes Probes in different lengths are available To adapt to the tank height each probe can be shortened The minimum probe length is 10 cm the maximum probe length is 160 cm e Probe and housing can be rotated without restriction This enables easy installation and orientation of the head of the unit after installation 5 2 6 Safe state e Incase of a fault a safe state can be defined for each output e Ifa fault is detected or if the signal quality is below a minimum value the outputs pass into the safe state For this case the response of the outputs can be set via the parameters FOU1 FOU2 e Temporary loss of signal caused e g by turbulence or foam formation can be suppressed by a delay time 10 5 6 dFo During the delay time the last measured value is frozen If the measured signal is received again in sufficient strength within the delay time the unit continues to work in normal operation If however it is not received again in sufficient strength within the delay time the outputs pass into the safe state 5 2 7 10 Link communication parameter setting evaluation Using an IO Link capable parameter setting tool such as the FDT service program ifm Container the following options are available Reading current process values Reading changing and saving current parameter settings and transmitting them to other units of the same type The catalogue of the available DTM objects the IO Link Device Desc
27. ription IODD and the FDT service program ifm Container can be downloaded at www ifm com Service Download 12 6 Installation 6 1 Installation location environment e Vertical installation from the top is preferred 6 1 1 Unit with single probe e Fora safe function the unit requires a launching plate 6 4 For optimum operation the unit is to be installed as near as possible to the tank wall Distance between the rod and the tank wall minimum 40 mm maximum 300 mm UK 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 e For tank walls which are not straight steps supports or other structures in the tank a distance of 50 mm to the tank wall must be adhered to For probe lengths gt 70 cm the rod can be considerably deflected by movement of the medium To avoid contacting the tank wall or other structures in the tank in such cases the minimum distances should be increased Reference values Probe length Distance to the tank wall or structures in the tank 70 100 om 100 160 om e 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 13 measurements adhere to increased minimum distances depending on type and intensity of the soiling e For installation in pipes The inside pipe diameter d mus
28. s eed ie Ee EE Ek Ee GE SE ERA ee EE 37 To Ap EAI ele EE EO ER EL 38 15 1 Minimum level monitoring with early warning and alafM ees see see 38 15 2 Pumping station empty the tank with overflow protection 39 193 Storage El OO OR EE 40 le Taeldi Send EE cea ane vee Ee oe 41 1 Preliminary note 1 1 Symbols used gt Instruction gt Reaction result Designation of pushbuttons buttons or indications Cross reference Important note Non compliance can result in malfunction or interference El Information Supplementary note 2 Safety instructions e Please read this document prior to set up of the unit Ensure that the product is Suitable for your application without any restrictions e The unit must be connected by a qualified electrician e The national and international regulations for the installation of electrical equipment must be adhered to e 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 e The unit may cause radio interference in domestic areas If interference occurs the user must take appropriate remedial actions e 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
29. t be at least 100 mm fig 6 1 Only install the unit in metal pipes e For installation in bosses The diameter of the boss d must be at least 60 mm fig 6 2 The height of the boss h must not exceed 40 mm fig 6 2 Although the unit can be installed in a boss installation in a flat tank lid is recommended A boss will impede the distribution of the microwaves e Do not install the unit in the immediate vicinity of a fill opening fig 6 3 If possible install a fill pipe A in the tank fig 6 4 Minimum distance between the fill pipe and the rod 50 mm higher for probe lengths gt 70 cm and in case of heavy soiling 6 1 1 14 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 The lower edges of the bypass C and of the still pipe D must be below the minimum level This ensures that neither foam nor waves impact the sensor zone 6 1 2 Unit with coaxial probe e There are no minimum distances to the tank wall and the baffles B required e 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
30. ted 10 1 General parameter setting 3 steps must be taken for each parameter setting Select the parameter gt Press Mode Enter until the requested parameter is displayed Set the parameter value d Press Set and keep it pressed Current setting value of the parameter flashes for 5 s After 5 s setting value is changed incrementally by pressing the button once or continuously by keeping the button pressed Numerical values are incremented continuously For reducing the value let the display move to the maximum setting value Then the cycle starts again at the minimum setting value Acknowledgement of the parameter value gt Press Mode Enter briefly gt The parameter is displayed again The new setting value is stored Setting of other parameters gt Start again with step 1 Finishing the parameter setting gt Press Mode Enter several times until the current measured value is displayed or wait for 15 s gt The unit returns to the operating mode If S Loc is displayed 11 1 Operating indicators 27 e Change from menu level 1 to menu level 2 gt Press Mode Enter until EF is aa aaa n Mode Enter Set ED D gt Press Set briefly gt The first parameter of the submenu is Bae displayed here res a e Locking unlocking The unit can be electronically locked to prevent unwanted adjustment of the set parameters gt Make sure that the unit is in the normal operating mode e
31. ulses in the nanosecond range The pulses are transmitted by the sensor head and guided along the rod fig 5 1 When they hit the medium to be detected they are reflected and guided back to the sensor fig 5 2 The time between transmitting and receiving the pulse directly relates to the travelled distance D and the current level The reference for distance measurement is the lower edge of the process connection The figures show operation with single probe In case of operation with a coaxial probe the guided wave runs only along the inside of the coaxial pipe 5 2 Features of the unit 5 2 1 Easy set up e When the unit is supplied with operating voltage for the first time the probe length the medium to be detected and the type of probe used must be entered The unit is then ready for operation 10 2 e f necessary parameters for the output signals and optimisation of the monitoring functions can be set 10 3 to 10 5 All settings can also be carried out before installation of the unit e Reset to the factory settings is possible e Electronic lock can be set to prevent unintentional operations 5 2 2 Display functions The unit displays the current level either in cm inch or in percent of the final value of the measuring range Factory setting cm The display unit is defined by programming 10 3 In the Run mode it can be temporarily switched between length indication cm inch and percentage
32. value minus 3 5 When the LEnG value is entered the program calculates the basic setting More information at www ifm com Tel 44 0 191 490 1547 Fax 44 0 191 477 5371 Email northernsales thorneandderrick co uk Website www heattracing co uk www thorneanderrick co uk THORNE amp DERRICK UK 41
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