Operating instructions Platform/floor scales
Contents
1. KERN amp Sohn GmbH WAAGEN GEWICHTE BALANCES WEIGHTS Ziegelei 1 Phone 49 0 7433 9933 0 D 72336 Balingen Fax 49 0 7433 9933 149 email info kern sohn com Internet www kern sohn com Operating instructions Platform floor scales KERNEOB EOE L EOE XL EOS Version 3 0 07 2010 GB EOB EOE L EOE XL EOS BA e 1030 KERN EOB EOE L EOE XL EOS Version 3 0 07 2010 Operating instructions Platform floor scales Table of Contents 2 1 2 2 3 1 3 2 3 3 3 4 4 1 4 2 5 1 5 2 6 1 6 2 6 2 1 6 2 2 6 3 6 4 6 5 Technical Specifications aarnennennene mensenn eenmensenrnensensnnrnenennenn 4 Appliance TT H Igel 11 Wee Ee RE 11 Basic Information General s insrervneriterriterileverdhenevenitenevenileagens 12 Proper USE EE 12 Jul elei ee USO enneh nedbet tementen 12 UE en eisten eener a ennen antennen eam 12 Monitoring of Test Resources anna nann ennn eenn ennr snars eenrnnnnnnnnrsenrnnenrnnnnenn 13 Basic Safety EU ele EE 13 Pay attention to the instructions in the Operation Manual ccccceeeeeeeees 13 Personne WAlAING eege 13 Transportation amp StOrage socias eege geg 13 Testing H BOESEN 13 PaGKaging return transport eege 13 Unpacking Setup and COMMISSIONING ccscceeeeeeeeeeeseeeseneeeneeeeeenenens 14 Installation Site Location Of Use a snvanunrenrnensnrenrsnenserenrsnenenrenseren 14 Unpacking ANG Dalle Eege ee ENEE ie2. Off 3 min Weighing Units kg lb Ambient temperature 10 35 C Humidity of air max 80 not condensing BAER EOB EOE L EOE XL EOS BA e 1030 7 Models KERN EOS EOS EOS 150K50XL 300K100XL Weighing range max 150 kg 300 kg Linearity Recommended adjustment weight not 100 kg 200 kg M2 M2 added class crores Warm up time Supply voltage 220 V 240 V AC 50 Hz Ambient temperature 10 35 C Humidity of air max 80 not condensing E 8 EOB EOE L EOE XL EOS BA e 1030 2 Appliance overview Models EOB Weighing plate stainless steel KEE Le E LL Models EOE Weighing plate varnished steel EOB EOE L EOE XL EOS BA e 1030 10 Models EOS e Weighing plate stainless steel e Anti slip rubber mat Comfortable transport due to 2 rollers and 1 grab handle EOB EOE L EOE XL EOS BA e 1030 Be D LU 2 1 Overview of displays 456 2N uc cl UNIT TARE OFF 1 Is displayed when the battery capacity is exhausted No Description 2 Balance zero display Should the balance not display exactly zero despite empty scale pan press the TARE button The balance will be set to zero after a short standby time Stability display lf the display shows the stability display o the balance is in a stable status The o indication disappears if the condition is unstable Hold animal weighing function active see chap 9 Weighing unit kg S
3. fluctuating environment temperature To receive accurate measuring values it is also recommended to adjust the balance periodically in weighing operation Observe stable environmental conditions A warming up time see chapter 1 is required for stabilization gt In weighing mode press the UNIT key and keep it pressed until CAL followed by the weight value of the required adjustment weight in displayed LOAd is displayed alternatively 8 Example gt Carefully place the required adjustment weight see tab 1 Technical data in the centre of the weighing plate Press TARE key adjustment is started gt Wait until the stability display appears after that the adjustment is finished The balance will automatically return to Weighing mode upon successful completion of the adjustment and will display the weight of the adjustment weight kg gt Take away adjustment weight An error message will be displayed in the event of an adjustment error or incorrect adjustment weight Remove the adjustment weight and repeat the adjustment process mi Keep the adjustment close to the balance Daily control of the weighing exactness is recommended for quality relevant applications EOB EOE L EOE XL EOS BA e 1030 17 8 Operation Start up ON OFF Switching Off Weighing Switch over weighing unit UNIT 18 Press the ON OFF key The balance will carry out a self test The balance is ready for
4. vacuum cleaner Remove spilled weighing goods immediately 10 2 Service maintenance The appliance may only be opened by trained service technicians who are authorized by KERN Before opening disconnect from power supply 10 3 Disposal Disposal of packaging and appliance must be carried out by operator according to valid national or regional law of the location where the appliance is used 11 Error messages troubleshooting guide Error message LO Capacity of batteries exhausted EEPROM error display unit Overload Minimum weight under min value EOB EOE L EOE XL EOS BA e 1030 23 In case of an error in the program process briefly turn off the balance and disconnect from power supply The weighing process must then be restarted from the beginning Help Fault Possible cause The displayed weight does not glow e The balance is not switched on e The mains supply connection has been interrupted mains cable not plugged in faulty e Power supply interrupted The displayed weight is permanently e Draught air movement changing e Table floor vibrations e The weighing plate is in contact with foreign matter e Electromagnetic fields static charging choose different location switch off interfering device if possible The weighing value is obviously e The display of the balance is not at zero wrong e Adjustment is no longer correct e The balance is on an uneven surface e Great fluctuations in temper
5. weighing when the weight display appears Should the balance not display exactly zero despite empty weighing plate press the TARE button The balance will be set to zero after a short standby time Press ON OFF button the display disappears Place goods to be weighed on balance Wait for stability display Read weighing result By pressing the UNIT button the weighing result can be displayed in another unit kg S Ib Unit conversion 1 kg 2 20462 Ib EOB EOE L EOE XL EOS BA e 1030 Taring gt Place an empty weighing container the weight of the weighing container will be displayed TARE u __ mon LU UL LIL gt Press the TARE button the zero display disappears The indicator A under NET is displayed The tare weight is saved until it is deleted d HOLD NET The taring process can be repeated any number of times e g when adding several components for a mixture adding The limit is reached when the whole weighing range is exhausted The weight of the weighing container will be displayed as a minus number after removing the weighing container The tare weight is saved until it is deleted Delete tare gt Unload the balance and press the TARE button the zero display appears vis EOB EOE_L EOE_XL EOS BA e 1030 19 The balance has an integrated animal weighing function mean Hold function j Ae animal weighing value calculation Using this function it i
6. 0 210x110 x 45 4 EOB EOE L EOE XL EOS BA e 1030 me 150K50 1 ETEN 1 TE Readability d 50 ao 50 ao 50 ao Weighing range max 150 kg 150 kg 150 kg Recommended adjustment weight not 100 kg 100 kg 100 kg M2 M2 M2 added class Supply voltage 220 V 240 V AC 50 Hz ee 5 meyer Humidity of air max 80 not condensing Display e BxDxH Weighing surface mm 314 5 x 304 5 550 x 550 945 x 505 210x110 x 45 EOB EOE L EOE XL EOS BA e 1030 5 EOB EOB EOB ET K100A 300K100L 300K100XL Readability d 100 oe 100 g 100 g Weighing range max 300 kg 300 kg 300 kg Reproducibility 100 g 100 g 100 g Recommended adjustment weight not 200 kg 200 kg 200 kg M2 M2 M2 added class Supply voltage 220 V 240 V AC 50 Hz ee 5 meyer Humidity of air max 80 not condensing Display e BxDxH Weighing surface mm 314 5 x 304 5 550 x 550 945 x 505 210x110 x 45 6 EOB EOE L EOE XL EOS BA e 1030 Models KERN EOE EOE EOE EOE EOE 150K50L 150K50XL 300K100L 300K100XL Weighing range max 150 kg 150 kg 300 kg 300 kg Reproducibility oe 1009 Linearity Recommended 100 kg 100 kg 200 kg 200 kg adjustment weight not added class ua Me M2 M2 Stabilization time typical 2 5 sec Warm up time Supply voltage 220 V 240 V AC 50 Hz Power pack secondary voltage 9V 100 mA Battery optional 6 x 1 5 V AA 9V Battery operation period 220h Auto
7. E L EOE XL EOS BA e 1030 21 9 Menu l Changes are only allowed on the functions Un E weighing units and H LU automatic switch off function LC EF gt In weighing mode keep TARE button depressed for approx 3 sec until SETUP is displayed followed by UNIT gt Press the HOLD button as often as necessary until the required function is displayed gt Press the TARE button to confirm the selected function The current setting will be displayed Using the HOLD 4 or TARE gt button select the desired parameter Use the HOLD button to return to the menu gt To exit the Menu and save press the HOLD button as often as required until END is displayed and then confirm by pressing TARE The balance returns automatically into weighing mode TARE E Navigation gt en kg Unt J Dr KR Ea 1205 ADEE ch 1205 eenn ren Not documented 190 5 gt 24g s 390 5 gt AF GEE JI Not 1 Factory settings are marked by 22 EOB EOE L EOE XL EOS BA e 1030 10 Service maintenance disposal 10 1 Cleaning Before cleaning disconnect the appliance from the operating voltage Please do not use aggressive cleaning agents solvents or similar agents but a cloth dampened with mild soap suds Take care that the device is not penetrated by fluids and polish it with a dry soft cloth Loose residue sample powder can be removed carefully with a brush or manual
8. Ib see chap 8 Switch over weighing unit e stored tare value see chap 8 Taring 2 2 Keyboard feu B cae Turn on off balance Hold animal weighing function UNIT Switch over weighing unit EOB EOE L EOE XL EOS BA e 1030 11 3 Basic Information General 3 1 Proper use The balance you purchased is intended to determine the weighing value of material to be weighed It is intended to be used as a non automatic balance i e the material to be weighed is manually and carefully placed in the centre of the weighing plate As soon as a stable weighing value is reached the weighing value can be read 3 2 Improper Use Do not use balance for dynamic add on weighing procedures if small amounts of goods to be weighed are removed or added The stability compensation installed in the balance may result in displaying an incorrect measuring value Example Slowly draining fluids from a container on the balance Do not leave permanent load on the weighing plate This may damage the measuring system Impacts and overloading exceeding the stated maximum load max of the balance minus a possibly existing tare load must be strictly avoided Balance may be damage by this Never operate balance in explosive environment The serial version is not explosion protected The structure of the balance may not be modified This may lead to incorrect weighing results safety related faults and destruction of the balance The
9. ation amp Storage 5 1 Testing upon acceptance When receiving the appliance please check packaging immediately and the appliance itself when unpacking for possible visible damage 5 2 Packaging return transport gt Keep all parts of the original packaging for a possibly required return Only use original packaging for returning Prior to dispatch disconnect all cables and remove loose mobile parts gt Reattach possibly supplied transport securing devices gt Secure all parts such as the glass wind screen the weighing platform power unit etc against shifting and damage EOB EOE L EOE XL EOS BA e 1030 13 6 Unpacking Setup and Commissioning 6 1 Installation Site Location of Use The balances are designed in a way that reliable weighing results are achieved in common conditions of use You will work accurately and fast if you select the right location for your balance Therefore observe the following for the installation site e Place the balance on a firm level surface e Avoid extreme heat as well as temperature fluctuation caused by installing next to a radiator or in the direct sunlight e Protect the balance against direct draughts due to open windows and doors e Avoid jarring during weighing e Protect the balance against high humidity vapours and dust e Do not expose the device to extreme dampness for longer periods of time Non permitted condensation condensation of air humidity on the applianc
10. ature e Electromagnetic fields static charging choose different location switch off interfering device if possible Should other error messages occur switch balance off and then on again If the error message remains inform manufacturer 24 EOB EOE L EOE XL EOS BA e 1030
11. balance may only be used according to the described conditions Other areas of use must be released by KERN in writing 3 3 Warranty Warranty claims shall be voided in case e Our conditions in the operation manual are ignored e The appliance is used outside the described use e The appliance is modified or opened e Mechanical damage or damage by media liquids natural wear and tear e The appliance is improperly set up or incorrectly electrically connected e The measuring system is overloaded 12 EOB EOE L EOE XL EOS BA e 1030 3 4 Monitoring of Test Resources In the framework of quality assurance the measuring related properties of the balance and if applicable the testing weight must be checked regularly The responsible user must define a suitable interval as well as type and scope of this test Information is available on KERN s home page www kern sohn com with regard to the monitoring of balance test substances and the test weights required for this In KERN s accredited DKD calibration laboratory test weights and balances may be calibrated return to the national standard fast and at moderate cost 4 Basic Safety Precautions 4 1 Pay attention to the instructions in the Operation Manual Carefully read this operation manual before setup and commissioning even if you are already familiar with KERN balances 4 2 Personnel training The appliance may only be operated and maintained by trained personnel 5 Transport
12. e may occur if a cold appliance is taken to a considerably warmer environment In this case acclimatize the disconnected appliance for ca 2 hours at room temperature e Avoid static charge of goods to be weighed or weighing container If electro magnetic fields or static charge occur or if the power supply is unstable major deviations on the display incorrect weighing results are possible In that case the location must be changed 6 2 Unpacking and placing Open package take out the appliance and accessories Verify that there has been no damage and that all packing items are present The balance must be installed in a way that the weighing plate is exactly in horizontal position Mount the display unit in a way that facilitates operation and where it is easy to see 14 EOB EOE L EOE XL EOS BA e 1030 6 2 1 Scope of delivery serial accessories e Platform and display unit see chap 2 e 4x adjustment feet excepted platform size 314 5 x 304 5 cm e Mains power supply e Wall fixture with fixing screws e Operating instructions 6 2 2 Assembly instructions for the use of the wall fixture EOB EOE L EOE XL EOS BA e 1030 15 6 3 Mains connection Power is supplied via the external mains adapter The stated voltage value must be the same as the local voltage Only use original KERN mains adapters Using other makes requires consent by KERN 6 4 Battery operation On the rear side of the display unit remove
13. ee eee eee 14 Scope of delivery serial accessories un anrennnnnenneennnnnenrennnnrenseennnnennseennnnenns nennen 15 Assembly instructions for the use of the wall fixture oan annnnneenennnseneeenensennneenenn 15 Mains lee de EE 16 Battery OperallON eege Ee 16 Initial COMMISSIONING EE 16 PGS dn ENT EE 17 EOB EOE L EOE XL EOS BA e 1030 lg U Da 18 SWING OM orisa ee eenen ee 18 Ee Lu Lu EE 18 Switch over weighing unit naaersners nnn ennrs eenen nnen sene nenre ners nnnrsnensnenen nere neneennn 18 LEI Uu te KE 19 Hold function animal weighing function anneer nenenneen mene EEN KEREN nanne 20 PIUS TER e ul Uu WEE 21 9 MENU bennen nein dee nonnen 22 10 Service maintenance disposal nau ENK REREN KEREN ENNER EN NENNEN EN 23 10 CIE sene E ee 23 10 2 EE APESS EE 23 10 3 DISPOSA sd a eenen eenen eneen aanb nne 23 11 Error messages troubleshooting guide nennen eernennenenn 23 EOB EOE L EOE XL EOS BA e 1030 3 1 Technical Specifications Models KERN EOB RI 35K10 60K20 60K20L Readability d 10g 20g 20g Weighing range max 15 kg 35 kg 60 kg 60 kg Recommended 10 kg 20 kg 40 kg 40 kg adjustment weight not M2 M2 M2 M2 added class Stabilization time typical 2 5 sec Supply voltage voltage 220 V 240 V AC 50 Hz BEE voltage Battery 6x 1 5 V AA 10 C 35 C max 80 not condensing Display unit B x D x H mm Weighing surface mm 314 5 x 304 5 550 x 55
14. s possible to weigh function domestic or small animals exactly min load 1 of the max one although they do not stand quiet on the weighing plate display the indicator A starts flashing During this time the balance takes up several measured values and displays gt Put upon weighing goods and press the HOLD key In the then the calculated mean value gt This value remains in the display until the HOLD button is pressed again The indicator A under HOLD goes out the balance returns into normal weighing mode gt Press the HOLD button once more to repeat this function as often as required There is no average value calculation in the event of too much movement heavy display oscillation 20 EOB EOE L EOE XL EOS BA e 1030 Plus minus gt For example for item weight check production check etc weighing switch on the balance using ON OFF button and wait for zero display TARE gt Put the nominal weight on the weighing plate and tare to zero using TARE key Remove the nominal weight HOLD NET kg O en q i gt Put the test objects subsequently on the weighing plate the respective deviation from the nominal weight is displayed with the respective sign to and e g 0 037 g According to the same procedure also packages with the same weight can be produced referring to a nominal weight gt Back to weighing mode by pressing the TARE button EOB EO
15. the battery cover and connect 6 x 1 5V mignon cells Reinsert the battery cover In order to save the battery the balance switches automatically off after 3 minutes without weighing Further shutdown times can be set in the Menu Function A OFF see Section 9 lf the batteries are exhausted the battery symbol will appear see chap 2 1 Switch off balance and replace batteries at once lf the balance is not used for a longer time take out the batteries and store them separately Leaking battery liquid could damage the balance 6 5 Initial Commissioning In order to obtain exact results with the electronic balances your balance must have reached the operating temperature See warming up time chap 1 During this warming up time the balance must be connected to the power supply mains accumulator or battery The accuracy of the balance depends on the local acceleration of gravity Strictly observe hints in chapter Adjustment 16 EOB EOE L EOE XL EOS BA e 1030 7 Adjustment As the acceleration value due to gravity is not the same at every location on earth each balance must be coordinated in compliance with the underlying physical weighing principle to the existing acceleration due to gravity at its place of location only if the balance has not already been adjusted to the location in the factory This adjustment process must be carried out for the first commissioning after each change of location as well as in case of
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