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@Adam Equipment Company 2005

 

 

 

16 

board  and  also  if  the  link  between  K1  and  K5,  if  any.  Install  the  micro-

processor and the links in the same way as it was in the old board into the 

new board. Be very careful not to bend the legs while removing the micro-

processor. 

    

  Plug  the  cables  coming  from  the  Load-cell,  Display,  Battery  and  Power 

Switch into the main PCB. 

    

  Turn the scale on to check whether the scale is working. Note that without 

the pan installed the scale may not show zero. 

    

  Replace the cover back and secure it with all 5 screws.  

    

  Place the stainless steel pan back on the scale. 

    

  Switch the scale on to verify proper installation. 

    

  Set  the  parameters  as  described  in  the  Service  Manual  and  perform  the 

Factory Calibration by using the 

[Limit]

 and 

[%]

 keys together. 

    

  If the RS-232  needs  to  be  disabled  or configured,  follow  the procedure  for 

parameter settings as given in the manual.  

    

    

 

 

9.0  SCHEMATICS 

 

The  following  schematics  are  included  as  a  guide  for  the  experienced  Service 

Technician.  If you are not experienced we do not advice you to change parts on the 

circuit boards or otherwise disturb the electronics.   

 

If you require assistance please contact your dealer or Adam Equipment.  We will be 

happy to help you resolve problems or determine the cause of a problem if you send 

us a full description of the scale and the problem. 

 

The following schematics are included. 

 

 

 

  

CBW Main PCB assembly, pages 2 

Summary of Contents for CBW 100a

Page 1: ...Adam Equipment Company 2005 Adam Equipment CBW SERIES SERVICE MANUAL ADAM EQUIPMENT CO LTD p n 4331 Rev A3 January 2005...

Page 2: ...0 ERROR CODES 5 4 0 CBW DESCRIPTION 6 5 0 CBW CALIBRATION PARAMETERS VER 1 2 2 03 7 5 1 CBW CALIBRATION VER 1 2 2 03 7 5 2 CBW PARAMETERS VER 1 2 2 03 8 6 0 TWO POINT FACTORY CALIBRATION 10 6 1 ADC OU...

Page 3: ...is blank Power Switch faulty or not connected No turn on test Battery not charged or faulty Power supply faulty or incorrect type E6 is displayed Pan not installed Poor connection Load cell damaged El...

Page 4: ...te weight Balance not level Obstruction between sample pan Wrong unit of weight displayed Cannot use Full Capacity Over load Stops hitting pan support or hitting bottom of load cell Electronics faulty...

Page 5: ...Keyboard error Improper operation of the scale A D count is not correct when turning the scale on Platform is not installed Load cell is damaged Electronics is damaged Scale is not stable when settin...

Page 6: ...W are similar except the selection of load cells and the program The main circuit board is the same as used in the CBC scales Normally if a problem is found with a circuit board the most cost effectiv...

Page 7: ...ero Enter key when the stable indicator is on Or if a different value is desired enter the value using the arrow key to select the flashing digit and the to increment the flashing digit If value is co...

Page 8: ...Print keys at the same time Setting the scale increment The display will show where can be 1 2 5 10 or 20 The first value shown is the default scale increment value To change to a different increment...

Page 9: ...division The display will show Press the Tare key to change the value Press the Zero Enter key to store the changed setting Selectable unit of weight displayed The scales are normally set to display...

Page 10: ...cator will not show or when the raw counts do not seem to be moving Please ensure that the load cell is not damaged and that the load cell is wired correctly with the right output voltages To start th...

Page 11: ...ead load percentage of the cell If with no load on the pan the counts are below 1000 or above 200 000 then the load cell should be tested as explained in the next section Apply full capacity to the pa...

Page 12: ...articular way on the metal structure These 4 strain gauges are connected in such a way that they form a wheatstone bridge See figure below In the simplest load cells there are only the 4 resistances o...

Page 13: ...voltmeter with up to a 10volt power supply Before the load cell is connected to the power supply use the ohmmeter to measure the resistance between the wires Typical resistance values are E to E 410...

Page 14: ...needs to be amplified to make it acceptable for the A D converter used The TCC CBW scales amplify the input by 200 and change the no load voltage to about 2 5V The TFC and TFW scales use a gain of 500...

Page 15: ...he top pan and take out the 5 screws from the bottom of the scale 2 Detach the 4 cables connected with the Load cell Display Power Switch and Battery Chamber from the main PCB Remove the main PCB by t...

Page 16: ...ale on to verify proper installation Set the parameters as described in the Service Manual and perform the Factory Calibration by using the Limit and keys together If the RS 232 needs to be disabled o...

Page 17: ...Adam Equipment Company 2005 17...

Page 18: ...Adam Equipment Company 2005 18...

Page 19: ...to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment The equipment generates uses and can radiate radio frequency energy and if not...

Page 20: ...tronic Scales for Medical use Retail Scales for price computing Adam Equipment Co Ltd Bond Avenue Milton Keynes MK1 1SW UK Phone 44 0 1908 274545 Fax 44 0 1908 641339 e mail sales adamequipment co uk...

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