572_573_KB_DS_FCB_FKB Version 5.1
Contents
1. KERN 8 Sohn GmbH L 27 WAAGEN GEWICHTE BALANCES WEIGHTS Ziegelei 1 Tel 49 0 7433 9933 0 D 72336 Balingen Fax 449 0 7433 9933 149 E Mail info kern sohn com Internet www kern sohn com Service manual Precision balances 572 573 Version 5 1 KBxxN M DS 4 2009 FCBxB 572 5 0951 KERN 572 573 NM KB N M DS FCB B Version 5 1 4 2009 Service Manual Precision Balances Table of Contents oO oo fF W N 6 1 Adjustment of non verification balances nennen nhan 6 2 Adjustment of verification balances KERN 573 NM KB NM T PACTON MENU i Z1 Howto Enter the Factory reverenter 7 3 Factory AQJUSIMENE S saco n sae Es usa gura seus ese RI Sus e US RV CESAR RN 7 4 Automatic Linearity 2 2 2 7 5 Manual Linearity Adjustment 8 BIECIONICS u uuu M m 8 1 Explanation and Connection of Main J 8 2 ay OU ON rio 2 572 SH e 0951 sri ee Ir i fo n ee hc secs secssetccoucoasseossedsuseora2. Fast A B IMPORTANT The modified settings as well as the adjustment must be stored when switching off via the ON OFF button 572 SH e 0951 5 5 Troubleshooting Interruption Possible cause Either the scale is overloaded or there is a mechanical defect Underload Weighing range has been fallen short of Mechanical defect or a defect in the main PCB In counting and mode part too light The rechargeable battery is empty and should be loaded Weight display is not illuminated The balance is not switched on The mains supply connection has been interrupted mains cable not plugged in faulty Power supply interrupted The weight display changes continually Draught air movement Table floor vibrations The weighing plate is in contact with foreign matter Electromagnetic fields static charging choose different location switch off interfering device if possible The weighing result is obviously incorrect The balance display is not set to zero Adjustment is no longer correct Great fluctuations in temperature Electromagnetic fields static charging choose different location switch off interfering device if possible owitch the balance off if other error messages should appear and then switch on again Contact the manufacturer if the error message does not disappear 6 572 SH e 0951 6 Adjustment The balance must adjusted at its place of installation before initial use and at regular intervals A w
3. L 5000 0g 07d and inscribe the correction value like described above in point 5 and so on To return to normal weighing mode press TARE key once Switch off the balance by pressing the ON Now plug off the power supply and plug in again Information lf there is a positive difference e g 2000 6 g 6 digit you should subtract this difference to the stored value e g L 2000 0 064 If there is a negative difference e g 1999 4 g 6 digit you should add this difference to the stored value e g L 2000 0 06d 572 5 0951 9 8 Electronics 8 1 Explanation and Connection of Main PCB Pin 1 Power supply Pin 2 Power supply Connection of Pin 3 RS 232 TXD keyboard overlay Pin 4 RS 232 RXD Pin 5 RS 232 GND 12345 Be Connection of LCD a Bis WII display OUT SIG Series resistor Connection of for backlight LCD display min 50 ohm Top Side If required set solder bridge to switch on the scale automatically after plug in the mains adapter without pressing the ON OFF key for charging circuit Bottom Side 10 572 SH e 0951 3 nnd 8 2 Layout of Main 1 Ee sur om il BBB BB B Seams B ml Jm pcm zn cm Sag LEER a aq a BEBHB m L BEC XL 16 572 5 0951
4. TARE key once 7 2 Display Contrast 1 2 3 4 5 Turn ON the balance Press and hold the TARE key approx 10 seconds until Factory Reset appears Press MODE key once The display appears Contrast xx With the arrow keys az and 89 insert the value and confirm with MODE key Press TARE key once to return to weighing mode Please notice the LCD segments are intense visible if the stored value is low If the stored value is high the LCD segments are low visible 7 3 Factory Adjustment 1 2 dz f 8 9 Turn ON the balance Press and hold the TARE key approx 10 seconds until Factory Reset appears Press MODE key twice until Lock N appears Set Lock to ON with key The display appears Lock Y Press TARE key once The balance is now in weighing mode Press MODE key once The display appears Cal N Press key to start the factory adjustment The display appears l then Place CAL Weight Place the maximum weight on the weighing pan Balance measuring for approx one minute 10 After that balance go back to normal weighing mode 11 Remove the weight and switch off the balance by pressing the ON OFF key 12 Now plug off the power supply and plug in again 572 SH e 0951 7 4 Automatic Linearity Adjustment 7 8 9 Turn ON the balance Press and hold the TARE key approx 10 seconds until Factory Reset appears Press M
5. ODE key until Linear auto appears Press a key to start the automatic linearity adjustment The display appears the first linearity point e g L1 2000 0g Confirm with key or press the MODE key to select another linearity point which is outside the permissible tolerances e g L2 5000 0g and confirm with pa key The display appears Place Lin Weight Place the required weight on the centre of the weighing pan and wait until you will get a stable weighing result Remove the weight Now balance is in weighing mode Switch off the balance by pressing the ON Now plug off the power supply and plug in again Please notice the linearity points were defined and configured in our production line Therefore it is not possible to change them afterwards without special configuration software 7 5 Manual Linearity Adjustment 1 2 T 8 9 Turn ON the balance After warming up time adjustment check balance readings in all measuring points In case of differences make a note Press and hold the TARE key approx 10 seconds until Factory Reset appears Press MODE key until Linear man appears Press Am key to start the manual linearity adjustment The display appears the first linearity point e g L 2000 09 004 With the arrow keys eg pa and you can change the stored value Press the MODE key to select another linearity point which is outside the permissible tolerances e g
6. arm up time of about 4 hours is recommended for stabilisation Please use the recommended adjusting weight according to the technical data in the operating instruction 6 1 Adjustment of non verification balances JUSTIEREN ADJUST Tane ser re r rB re _ l 6 2 Adjustment of verification balances KERN 573 NM KB NM FKB M Remark The adjusting is only possible when not being blocked by the adjusting switch The switch for this step is located at the bottom of the housing between the two turning feet necessary to turn the adjusting switch to the left for blocking Switch to the left Adjusting function is blocked After the adjusting has been completed successfully the adjusting has to be blocked by switching to the left The balance is now prepared for the procedure of verification After the verification the adjusting switch has to be secured by a verification mark against access JUSTIEREN ADJUST G r 572 SH e 0951 7 Factory Menu The settings are only possible when not being blocked by the adjusting switch see chapter 6 2 7 1 How to Enter the Factory Menu 1 2 3 4 5 Turn ON the balance Press and hold the TARE key approx 10 seconds until Factory Reset appears Press MODE key once The display appears Contrast xx The balance is now in service mode Step trough with MODE key to return to weighing mode press
7. e wieder im gesetzlich geregelten Bereich verwenden zu K nnen 572 SH e 0951 3 2 Introduction This service manual covers the 572 573 x NM KBxxN M DS FCBxB M series and is edited for the authorized servicing personnel Note all rights are reserved Copying any part of this manual is prohibited without our permission 3 Keyboard Description ON OFF NOY YES4 gt ESC JJ lt Wo B Nn gt gt m JJ m N ON OFF Print weighing result in MODE No descending in and counting mode Form reference in MODE Yes ascending MODE configuration Formula weighing in MODE to left Change g pieces Unit changeover in MODE to right Tare in MODE back in weighing operation 572 SH e 0951 4 Mode Menu CAL Place CAL PRINTER 2400Bd N Y Mode WEIGHT Mode Mode Esc 4800Bd N Y 9600Bd N Y 19200Bd N Y REF 20 NY re Ae Ba k Mode Esc x AUTOPRINT AY REF 50 N Y Mode Esc Mode Mode Esc gt AUTOPRT PC N Y Preselect Tare 1 0 0009 Mode Mode Mode YN Barcode N Y AUTOTARE BACKLIGHT N Y Mode Esc Mode not lt 3 PAST am BACKLIGHT VY ode auto Esc AUTO OFF lode Variable Factor 11 0 000g Mode Mode Y d Preselect Units g N Y Mode Mode Esc g kg oz ozt Manufacture Setting dwt GN Ib Count tL M LS tL REF 10 mo 9600bd e Preselect Units Autotare
8. reess Keyboard DESCHIDUON een MOGE MENU nn ere TEFOUDIESNOO ING eee REA AQJUSIMENT a2 iii 1 Basic Information Grundlegende Hinweise The device must be repaired only by trained specialist staff or personnel with professional formation such as a repair specialist accredited by law concerning verification The service manual is obligatory for repair work After repair original conditions of the device have to be restored Only original spare parts should be used Instructions about conformity evaluated scales Repair must be carried only at 100 compliance with the type approval A violation of this specification will result in a loss of the type approval After successful repair the balance will have to be reverified before it can be used again in a statutorily regulated field Das Ger t darf nur von geschultem oder beruflich ausgebildetem Fachpersonal 2 eichrechtlich anerkannter Instandsetzer repariert werden Die Serviceanleitung ist bindend f r Reparaturen Das Ger t muss nach erfolgter Reparatur wieder in den Originalzustand zur ckversetzt werden Es d rfen nur Originalersatzteile verwendet werden Hinweis zu konformit tsbewerteten Waagen Reparatur darf nur in 100 iger bereinstimmung mit der Bauartzulassung erfolgen Ein Versto gegen diese Vorgabe f hrt zum Erl schen der Bauartzulassung Nach erfolgreicher Reparatur muss eine Nacheichung erfolgen um die Waag
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