IFM Electronic LK0 Operating Instructions Manual Download | Manualshive

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Operating instructions

Electronic level sensor

LK7 / LK0

701593/07

04

/2

00

6

UK

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2
3
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Summary of Contents for LK0

Page 1: ...Operating instructions Electronic level sensor LK7 LK0 701593 07 04 2006 UK ...

Page 2: ...al mounting conditions 8 5 4 Mounting accessories 8 6 Electrical connection 9 7 Programming 10 8 Installation and set up operation 11 8 1 Display during operation 11 8 2 Level at power on 11 8 3 Maintenance cleaning change of medium 11 9 Technical information Functioning Parameters 12 9 1 Adjustable parameters 12 9 2 Hysteresis Hno Hnc 14 9 3 Fensterfunktion Fno Fnc 14 10 Technical data 15 11 Scal...

Page 3: ...3 UK 1 Menu structure ...

Page 4: ... Set button setting of the parameter values scrolling by holding pressed incremental by pressing briefly 3 Function and features The sensor detects the level of media in tanks within the active zone It shows the current level on its display It generates 2 output signals according to the set output configuration output 1 output 2 Switching function can be selected for each output separately hystere...

Page 5: ...e 5 3 2 0 5 3 2 0 10 2 4 0 min lowest measured value 1 5 0 6 3 0 1 2 4 0 1 6 max highest measured value 21 0 8 3 42 0 16 6 62 0 24 4 OFS offset 0 78 8 0 30 7 0 57 0 0 22 5 0 186 0 73 2 With offset 0 the OFS value is added to these values factory setting OFS 0 3 2 Offset The area between the bottom of the vessel and the lower face of the measuring probe can be entered as offset value Thus the displ...

Page 6: ...ion of the sensor 4 Operating modes 4 1 Run mode Normal operating mode After power on and elapsing of the power on delay time approx 1 s the unit is in the Run mode It monitors and switches the transistor outputs according to the set parameters The display indicates the current level the red LEDs indicate the switching state of the outputs During the power on delay time is displayed 4 2 Display mo...

Page 7: ...sed for 15 s 5 Installation 5 1 Mounting elements Mount the unit within the inactive zone if possible I mounting area M1 The active zone A should be completely in the vessel M1 M2 A I A I 5 2 Mounting recommendation For an optimum function we recommend A part of the active zone should be above the upper edge of the vessel above the overflow 1 cm for LKx022 1 5 cm for LKx023 2 5 cm for LKx024 You c...

Page 8: ...active zone of the sensor Otherwise they are detected as mounting element this reduces the active zone to the area between metal object and probe end min 60mm min 40mm min 10mm A B A active zone B metal component When installed in metal vessels the following distances must be observed sensor vessel wall 40 mm sensor vessel bottom 10 mm When several sensors type LK or type LK and type LI are mounte...

Page 9: ...safe function the sensor housing must be electrically connected to the vessel wall To do so use the housing connection with the blue cable lug see scale drawing and a cable piece with a wire cross section of min 1 5 mm that is as short as possible When using metal tanks the electrical ground of the tank serves as the machine earth When using plastic tanks an electrode has to be installed that is c...

Page 10: ...ait for 15 s or press the Mode Enter button until the current measured value is indicated again Decrease the value Let the display of the parameter value move to the maximum setting value Then the cycle starts again at the minimum setting value Timeout If no button is pressed for 15 s during the setting procedure the unit returns to the run mode with unchanged values The unit can be electronically...

Page 11: ...nimum distance to the lower edge of the mounting element at power on Minimum distance between the medium and mounting element in the active zone cm LKx22 LKx23 LKx24 3 5 8 The values are maintained if you follow the mounting recommendation 5 2 8 3 Maintenance cleaning change of medium Always carry out a reset in the following cases disconnect the sensor briefly and then connect it again so that th...

Page 12: ... 0 5 cm 0 2 inch LK0024 LK7024 5 0 60 0 2 0 23 5 1 05 cm 0 5 inch Values for OFS 0 with OFS 0 the OFS value is added to these values Dependence between rPx and SPx 1 rPx is always lower than SPx The unit only accepts values which are lower than SPx 2 If the difference between rPx and SPx is small approx 3 x steps increasing the switch on point also increases the switch off point the difference SPx...

Page 13: ... 186 0 74 5 1 05 cm 0 5 inch Display unit 2 settings can be selected EU display in cm Europe inc display in inch Select the display unit before setting the switch points SPx rPx This avoids rounding errors generated internally during the conversion of the units and enables exact setting of the values Min Max memory HI Displays the highest measured level LO Displays the lowest measured level Erase ...

Page 14: ...eresis can be adjusted First the switch on point is set then the switch off point with the requested difference L level HY hysteresis 9 3 Fensterfunktion Fno Fnc The window function enables the monitoring of a defined acceptable range When the level varies between the switch on point SPx and the switch off point rPx the output is switched window function NO or not switched window function NC The w...

Page 15: ...X Santoprene FPM Viton Optalloy plated brass NBR Buna N PA Pocan PC Macrolon PP polypropylene Materials wetted parts PP polypropylene Protection IP 67 III Operating temperature C 0 60 Medium temperature Oil C 0 65 Coolant emulsions water and hydrous media LKx022 C 0 65 LKx023 C 0 60 LKx024 C 0 55 Storage temperature C 25 80 Shock resistance g 12 DIN EN 60068 2 29 11 ms Vibration resistance g 2 5 D...

Page 16: ...ousing connection with cable lug for cable 1 5 2 5 mm2 LK0022 LK7022 LK0023 LK7023 LK0024 LK7024 cm inch cm inch cm inch L probe length 26 4 10 4 47 2 18 6 72 8 28 7 A active zone measuring range 19 5 7 7 39 0 15 4 58 5 23 0 I inactive zone 5 3 2 0 5 3 2 0 10 2 4 0 M lowest measured value 1 5 0 6 3 0 1 2 4 0 1 6 ...

Page 17: ...rm OU2 hysteresis function normally open Hno XX X display value A prewarning B alarm If the level is below rP1 output 1 switches until liquid is refilled If SP1 is reached again output 1 switches back If the level is above SP2 output 2 switches If the level falls below rP2 or if there is a wire break output 2 switches back By setting SP1 the maximum level can be controlled monitored The value of S...

Page 18: ...ly open Hno Switching output 2 overflow protection SP2 maximum value exceeded alarm rP2 slightly below SP2 to suppress wave movements OU2 hysteresis function normally closed Hnc XX X display value A empty B overflow protection If SP1 is exceeded output 1 switches submersible pump ON When rP1 has been reached again the output switches back submersible pump OFF If SP2 is exceeded or if there is a wi...

Page 19: ...ndow function normally open Fno XX X display value A refill B min monitoring C max monitoring If the level is below rP1 output 1 switches until liquid is refilled If SP1 is reached again output 1 switches back If the level is below rP2 or above SP2 or if there is a wire break output 2 switches OFF alarm The logical operation between the outputs 1 and 2 indicates whether there is overflow or the ac...

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