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Summary of Contents for IFM Electronic efector160 LI51
- Page 1 Operating instructions Binary level sensor LI51 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...
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Page 2: Table Of Contents
Contents 1 Preliminary note3 11 Symbols used 3 2 Safety instructions 3 3 Functions and features 4 31 Application area 4 32 Restriction of the application area 4 4 Function 4 41 Measuring principle 4 42 Features of the unit 5 43 Application examples 6 5 Installation 6 51 Installation location / environment 6... -
Page 3: Preliminary Note3
1 Preliminary note 1.1 Symbols used ► Instruction > Reaction, result […] Designation of pushbuttons, buttons or indications → Cross-reference Important note Non-compliance can result in malfunctions or interference Information Supplementary note 2 Safety instructions • Please read the product description 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... -
Page 4: Functions And Features 4
3 Functions and features The unit monitors the level of liquids in tanks 3.1 Application area • Water, hydrous media, oils, coolant emulsions 3.2 Restriction of the application area • The unit is not suitable for acids, alkalis, granulates, bulk materials • It is not suitable for hygienic areas • Highly conductive foam can trigger a switching operation Check the conse- quences by performing a test in your application! -
Page 5: 42 Features Of The Unit 5
The unit operates with radial detection characteristics Therefore media below the active zone are not detected Despite different electrical properties media are only detected when the active zone (A) is covered 4.2 Features of the unit • NO or NC function can be set by programming buttons (→ chapter 8 Settings) - NO function: output closed when the level has been reached / output open when the level has not been reached - NC function: output open when the level has been reached / output closed when the level has not been reached... -
Page 6: 43 Application Examples 6
4.3 Application examples 1: Overflow protection in a supply tank for coolant emulsion 2: Leakage monitoring in the overflow vessel of a hydraulic power pack 3: Minimum level monitoring 5 Installation 5.1 Installation location / environment • Vertical installation from the top is preferred (→ 5.3). • The following minimum distances must be adhered to: Distance tank bottom - end of the probe: 10 mm Distance metal tank wall - probe: 20 mm In small plastic tanks: mount the unit in the middle of the tank, where possible... -
Page 7: 52 Installation Procedure 7
5.2. Installation procedure The unit is mounted using a mounting clamp or an adapter The following standard mounting accessories are available: Order no • mounting clamp (for non-pressurised tanks) E43000 • mounting clamp with mounting bracket (for non-pressurised tanks) E43016 • flange plate with clamp adapter (pressure rating of 05 bar) E43001 • welding adapter with clamp adapter (pressure rating of 05 bar) E43002 • mounting adapter G¾... -
Page 8: 53 Set The Installation Length 8
5.3 Set the installation length A = response level LI51-m1 H = tank height SH = height of the connection piece L = probe length L1 = installation length L2 = extension length L3 = mounting length (at least 60 mm) MET = maximum installation depth (= active zone;... -
Page 9: Electrical Connection9
6 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 to EN 50178, SELV, PELV ► Disconnect power ► Connect the unit as follows: core colours of ifm sockets: 1 = BN (brown), 3 = BU (blue), 4 = BK (black) The unit can be used as NO or NC unit; → chapter 8 Settings. -
Page 10: Settings10
8 Settings Before the first set-up the basic teach empty state must be carried out 8.1 Carry out the basic teach empty state The basic teach empty state sets the unit to the empty tank and the installation conditions (eg the set installation length) Previous settings are deleted ►... -
Page 11: 83 Set The Deposit Suppression (Option)
8.3 Set the deposit suppression (option) This setting largely suppresses deposits in the tank and on the probe Previous settings are not changed ► Empty the tank until the medium is at least 20 mm below the end of the probe end. If the unit is set as NO unit (→ 8.1), the yellow LED goes off, if it is set as NC unit, it lights ►... -
Page 12: Maintenance, Repair And Disposal12
10 Maintenance, repair and disposal Recommended maintenance: ► Check the probe for build-up from time to time, clean it in case of strong soiling After removal of the unit or a change of media with dielectric constants that differ greatly (eg oil / water) another adjustment should be carried out It is not possible to repair the unit After use dispose of the unit in an environmentally friendly way in accordance with...
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