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KERN FOB 0.5K-4NS, Operating Manual

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KERN FOB 0.5K-4NS Operating Manual Download Page 1

 

KERN & Sohn GmbH

 

Ziegelei 1 
D-72336 Balingen 
E-Mail: [email protected] 

Phone:  +49-[0]7433- 9933-0 
Fax: +49-[0]7433-9933-149 
Internet: www.kern-sohn.com 

 
 

 

Operating manual 

 

Stainless steel table scales 

 
 

KERN  FOB 

Type FOB-S 
Type FOB NS 
Type FOB-NL 
Type FOB-LM 
Type FOB 

 

Version 2.0 
2018-08 
GB

 

 

 

FOB-BA-e-1820 

 

 

 

Summary of Contents for FOB 0.5K-4NS

Page 1: ... Mail info kern sohn com Phone 49 0 7433 9933 0 Fax 49 0 7433 9933 149 Internet www kern sohn com Operating manual Stainless steel table scales KERN FOB Type FOB S Type FOB NS Type FOB NL Type FOB LM Type FOB Version 2 0 2018 08 GB FOB BA e 1820 ...

Page 2: ... and storage 19 6 1 Testing upon acceptance 19 6 2 Packaging return transport 19 7 Unpacking Setup and Commissioning 20 7 1 Installation Site Location of Use 20 7 2 Unpacking 20 7 2 1 Placing 21 7 2 2 Levelling FOB models only 21 7 2 3 Scope of delivery 21 7 3 Mains connection 21 7 3 1 Assembly or disassembly of the protection hood 22 7 4 Battery operation 22 7 5 Initial Commissioning 23 7 6 Adjus...

Page 3: ...B S 36 10 4 2 Models FOB NS 36 10 4 3 Models FOB NL 37 10 4 4 Models FOB LM 37 10 4 5 Models FOB 39 10 5 Menu settings 40 10 5 1 Setting weighing units 40 10 5 2 Automatic switch off function AUTO OFF in stand by mode 42 11 Error reports 44 12 Servicing maintenance disposal 45 12 1 Cleaning 45 12 2 Servicing maintenance 45 12 3 Disposal 45 13 Instant help 46 ...

Page 4: ...stment weight not added class 200 g 500 g M1 2000 g 5000 g M1 Warm up time 10 min Stabilization time typical 2 sec Operating temperature 10 C 40 C Humidity of air 25 95 non condensing Housing stainless steel B x D x H mm 170 x 150 x 40 Weighing plate stainless steel mm 120 x 150 Weight kg net 650 g Auto off 2 min Battery 9 V block Service life 20 h Input voltage Appliance 9 V 100 mA Input voltage ...

Page 5: ...500 g M1 5000 g M1 Warm up time 10 min Stabilization time typical 2 sec Operating temperature 10 C 35 C Humidity of air 25 95 non condensing Housing stainless steel B x D x H mm 170 x 150 x 40 Weighing plate stainless steel mm 120 x 150 x 10 Weight kg net 650 g Auto off Options 2 3 4 5 min off Battery 9 V block Service life 24 h Input voltage Appliance 9 V 100 mA Input voltage Mains adapter 230 V ...

Page 6: ...0 min Weighing Units g lb oz g lb oz ozt dwt Stabilization time typical 2 sec Operating temperature 5 C 35 C Humidity of air 25 95 non condensing Housing stainless steel B x D x H mm 285 x 255 x 90 Weighing plate stainless steel mm 252 x 200 x 14 Weight kg net 3 8 kg Auto off 2 min Battery 4 x 1 5 V AA Service life background illumination ON 48 h Service life background illumination OFF 66 h Input...

Page 7: ... g lb oz ozt dwt Stabilization time typical 2 sec Operating temperature 5 C 35 C Humidity of air 25 95 non condensing Housing stainless steel B x D x H mm 285 x 255 x 90 Weighing plate stainless steel mm 252 x 200 x 14 Weight kg net 3 8 kg Auto off 2 min Battery 4 x 1 5 V AA Battery 4 x 1 5 V AA Service life background illumination ON 48 h Service life background illumination OFF 66 h Input voltag...

Page 8: ...ight not added class 1 5 kg M1 3 kg M1 Warm up time 10 min 10 min Weighing unit g Stabilization time typical 2 sec Operating temperature 5 C 35 C Humidity of air 25 95 non condensing Housing B x D x H mm 285 x 255 x 90 Weighing plate stainless steel mm 252 x 200 x 14 Weight kg net 3 8 kg Auto off 2 min Battery 4 x 1 5 V AA Service life background illumination ON 48 h Service life background illumi...

Page 9: ... added class 6 kg M1 15 kg M1 Warm up time 10 min 10 min Weighing unit g Stabilization time typical 2 sec Operating temperature 5 C 35 C Humidity of air 25 95 non condensing Housing B x D x H mm 285 x 255 x 90 Weighing plate stainless steel mm 252 x 200 x 14 Weight kg net 3 8 kg Auto off 2 min Battery 4 x 1 5 V AA Service life background illumination ON 48 h Service life background illumination OF...

Page 10: ...kg M1 Warm up time 10 min Weighing Units g lb oz Stabilization time typical 2 sec Operating temperature 5 C 35 C Humidity of air 25 95 non condensing Housing B x D x H mm 235 x 175 x 62 Weighing plate stainless steel mm 175 x 165 x 7 Weight kg net 1 8 kg Auto off 2 min Rechargeable battery Standard Input voltage Appliance 12 V 500 mA Input voltage Mains adapter 100V 240 V 50 Hz 2 Declaration of co...

Page 11: ...FOB BA e 1820 11 3 Appliance overview 3 1 Components KERN FOB S KERN FOB NS KERN FOB NL FOB LM ...

Page 12: ...12 FOB BA e 1820 KERN FOB Pos Description 1 Weighing pan 2 Keyboard 3 Display 4 Rechargeable battery charge display 5 Levelling screw 6 Bubble level below weighing pan 1 3 2 5 6 ...

Page 13: ...OFF button Turn on off TARE key Taring Zeroing Taring Zeroing Switching the display background illumination on off long key press UNIT button Switch over weighing unit HOLD button Call up hold function Calling up tolerance weighing FOB models only Models FOB S Models FOB NS ...

Page 14: ...14 FOB BA e 1820 Models FOB NL Models FOB LM Models FOB ...

Page 15: ...of display Models FOB S FOB NS Models FOB NL Display Description g lb oz ozt dwt Weighing units Stability display Display Description g lb oz ozt dwt Weighing Units Stability display HOLD Display hold function NET Display net weight ...

Page 16: ...ue is a net weight value the balance is in tolerance weighing mode Display Description g Weighing unit Stability display Zero display Battery charge display When the display shows that the battery capacity is exhausted the balance will automatically switch off after 30 seconds LED lights up when the power adapter is connected ...

Page 17: ...is a net weight value the balance is in tolerance weighing mode Display Description g Weighing unit Stability display Zero display Rechargeable battery charge display Rechargeable battery charge display LED lights green when the rechargeable battery is fully charged LED flashes green when rechargeable battery is being charged ...

Page 18: ...amage 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 faul...

Page 19: ... Manual Carefully read this operation manual before setup and commissioning even if you are already familiar with KERN balances All language versions contain a non binding translation The original German document is binding 5 2 Personnel training The appliance may only be operated and maintained by trained personnel 6 Transport and storage 6 1 Testing upon acceptance When receiving the appliance p...

Page 20: ...hing Protect the balance against high humidity vapours and dust Do not expose the device to extreme dampness for longer periods of time Non permitted condensation condensation of air humidity on the appliance 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 Avoid static charge of weigh...

Page 21: ...es Balance Weighing pan Mains adapter option KERN FOB A01 all models except models FOB Mains adapter standard FOB models only Battery all models except FOB models Rechargeable battery standard FOB models only Protective cover Operating manual 7 3 Mains connection The balance may be operated via the optional mains adapter The stated voltage value must be the same as the local voltage Only use origi...

Page 22: ...ection hood 7 4 Battery operation Remove battery cover at the lower side of the housing Insert Battery see Chap 1 Technical Data Put battery cover back in place and tighten it Illustration example FOB NS FOB NL FOB LM When you tighten the battery cover make sure that not too much pressure is put on the weighing plate The load cell may be damaged ...

Page 23: ...local acceleration of gravity Strictly observe hints in chapter Adjustment 7 6 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 locat...

Page 24: ... first adjustment weight Place the first adjustment weight in the middle of the weighing plate After a short time the value of the second adjustment weight is displayed alternately with LoAd Remove the first adjustment weight from the weighing pan and place the second adjustment weight centrically on the weighing pan Adjustment will be carried out automatically after stability control donE will be...

Page 25: ...se the ON OFF key an internal numerical value is displayed ò example Press the TARE key 0 is displayed Put adjustment weight centrically on the weighing plate and press the TARE key CAL is displayed followed by the value of the put adjustment weight Take away adjustment weight The balance changes into weighing mode Adjustment has now been completed successfully ...

Page 26: ...OFF key an internal numerical value is displayed ò example Press the TARE key 0 is displayed Put adjustment weight in the centre of the weighing plate wait for stability display and press the TARE key CAL is displayed followed by the value of the adjustment weight Take away adjustment weight The balance changes into weighing mode Adjustment has now been completed successfully ...

Page 27: ...counter Con x is incremented by one Balance display Operation ò example Switch off the balance Hold down the ON OFF key simultaneously press the UNIT key 3 times release the ON OFF key an internal numerical value is displayed ò example Press the TARE key 0 is displayed Put adjustment weight in the centre of the weighing plate and press the TARE key CAL is displayed followed by the value of the put...

Page 28: ...technical data as verifiable If a balance is used where obligation to verify exists as described above it must be verified and re verified at regular intervals Re verification of a balance is carried out according to the respective national regulations The validity for verification of balances in Germany is e g 2 years The legal regulation of the country where the balance is used must be observed ...

Page 29: ... balance will carry out a self test Await zero display Should the balance not display exactly 0 despite unloaded weighing pan press the TARE key The balance returns to 0 example Place weighed items on balance Wait until the stability display appears Read weighing result To turn off the balance press the ON OFF key shortly ...

Page 30: ...xample FOB NS Example FOB NL Place weighed items in the weighing container The net weight of the weighed items is displayed For L models a triangle appears below the NET symbol 9 3 Switch over weighing unit According to the requirements the balance can be switched over into different units These are set in the menu In the weighing mode press the UNIT key to toggle to the selected weighing units Th...

Page 31: ...for 0 display example Put the weighed item in place and press the HOLD key HOLD will appear and a small triangle flashes During this time an average value is recorded The triangle will stop flashing the stability display appears and the weight value obtained is displayed By pressing the HOLD button several times the balance returns to weighing mode The triangle disappears 9 5 Display background il...

Page 32: ...ortioning and sorting the unit will indicate exceeded or undershot limits by emitting an optical or acoustic signal Displayed triangle next to Weight of the weighed item Acoustic signal Optical signal background illumination of the display Target weight within tolerance range 2 short beeps Target weight below lower tolerance limit no beep Target weight above upper tolerance limit If Err is display...

Page 33: ...peatedly until the desired value is displayed Select the next digit with the UNIT key and set the value with the TARE key Repeat process for each digit Confirm entry with the HOLD key The display for entering the upper limit value appears the first digit flashes The upper tolerance mark is displayed The display lights red To change the flashing digit press the TARE button repeatedly until the desi...

Page 34: ...trol is started The visual and acoustic signals indicate whether the weighed item is within the two tolerance limits Load below specified tolerance Load within specified tolerance Load exceeds specified tolerance The tolerance mark next to is displayed The tolerance mark next to is displayed The tolerance mark next to is displayed Return to weighing mode Press and hold the HOLD key for three secon...

Page 35: ...ARE buttons simultaneously and for approx 3 s until SET is displayed then release both keys 10 2 Navigation in the menu All models except FOB Button Navigation Description TARE key Passing through menu items from top to bottom Confirm selection UNIT button Passing through menu items from left to right Models FOB Button Navigatio n Description UNIT button Passing through menu items from top to bott...

Page 36: ...36 FOB BA e 1820 10 4 Menu overview 10 4 1 Models FOB S Preset values may only be modified by trained and specialized personnel 1 Model FOB 500 1S 2 Model FOB 5K1S 10 4 2 Models FOB NS not documented ...

Page 37: ...FOB BA e 1820 37 10 4 3 Models FOB NL 10 4 4 Models FOB LM Verified Menu items relevant for verification are not available for verified balances Weighing mode ...

Page 38: ...38 FOB BA e 1820 Not verified On non verified balances the contacts on the PCB must be short circuited with a jumper All menu items are available ...

Page 39: ...FOB BA e 1820 39 10 4 5 Models FOB ...

Page 40: ... displayed FOB NL Switch off the balance Press and hold the ON OFF key and simultaneously press the TARE key 3 times and then release both keys Press the TARE key again the weighing unit g is displayed example Use to change to the desired unit Press the TARE key OFF is displayed example Press the UNIT key to change to On example Press the TARE key the selected unit will be displayed thus being set...

Page 41: ...f is displayed Press the UNIT key CAP is displayed Press the UNIT key End is displayed Press the TARE key to return to the weighing mode Switch between the set units using the UNIT key In order to switch off the units display proceed as described above and set the selected unit to Off ...

Page 42: ...old the TARE button for approx 3 seconds SEt followed by Unit is displayed FOB NL Switch off the balance Press and hold the ON OFF key and simultaneously press the TARE key 3 times and then release both keys Press the UNIT key AOFF is displayed ò ò ò ò Press the TARE key current setting appears Press the UNIT key to select the desired setting 120s Auto off after 120 seconds 180s Auto off after 180...

Page 43: ...is displayed Press the UNIT key CAP is displayed Press the UNIT key again End is displayed To return to weighing mode press the TARE key The setting is saved The auto off function is only possible in battery operation This function is deactivated during mains operation ...

Page 44: ...t on the weighing platform exceeds the capacity of the balance Reduce load Underload Increase the load if the error message remains please contact your retailer Zero range when switching on Check that the weighing pan is correctly seated Zero setting range exceeded at switch on Remove objects from the weighing pan Software error Contact your retailer ...

Page 45: ...de solution acetic hydrochloric sulphuric or citric acid Do not use metal brushes or cleaning sponges of steel wool as this causes superficial corrosion Spilled weighing goods must be removed immediately 12 2 Servicing maintenance The appliance may only be opened by trained service technicians who are authorized by KERN Before opening disconnect from power supply 12 3 Disposal Disposal of packagin...

Page 46: ...geable batteries inserted The displayed weight is permanently changing Draught air movement Table floor vibrations Weighing pan has contact with other objects Electromagnetic fields static charging choose different location switch off interfering device if possible The weighing result is obviously incorrect The display of the balance is not at zero Adjustment is no longer correct Great fluctuation...

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