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Adam Equipment GBC Bench Counting Scales GBCGFCREVB4 User Manual

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    							 P a g e 9                       © Adam Equipment Company 2014 
    5.0  DISPLAYS 
    The scales have three sections. These are  “Weight”, “Unit Weight” and “Count”. 
    The LCD design is:    
          WEIGHT          UNIT WEIGHT 
    5.1  WEIGHT
    It has 6-digit display to indicate the weight on th e scale. 
    Net Weight Display,  "Net"  
    Stability indicator,     symbol                
    Zero indicator,   0   symbol  
    The weighing unit:    kg, lb 
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    This display will show the unit weight of a sample.  This value is either input by the 
    user  or  computed  by  the  scale.  The  unit  of  measurem ent  is  grams  if  grams  if 
    kilograms is selected for the weighing unit, or pou nds if pounds is selected. 
    5.3  COUNT
    This  display  will  show  the  number  of  items  on  the  s cale  or  the  value  of  the 
    accumulated count. See the next section on OPERATIO N. 
    5.4  OTHER
    ·   The   symbol,  when  there  is  insufficient  number  of  s amples  to 
    accurately determine the count. 
    ·   When the unit weight is not large enough to determi ne an accurate count, 
    the   symbol will be on. 
    ·   In both cases the scale continues to operate and th e indications are to alert 
    the user for a potential problem.   
    ·   If a preset count has been stored the   symbol will  be on. 
    ·   A low battery symbol will turn on if the battery sh ould be recharged.  
    ·   The  Lo, OK,  Hi  symbols will be used when the preset count has bee n set.  
    ·   The symbol  “Mem” will be seen when the internal memory has a record  of 
    previous weighings stored in it. 
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    6.0  OPERATION 
    NOTE: GBC/GFC-a Scales only 
    The  scale  will  turn  on  displaying  the  last  weighing   unit  selected,  either  kilograms  or 
    pounds.    To  change  the  weighing  unit  press  the [U.  Wt./Units]  key  when  the  “Unit 
    Weight” display shows zero. If necessary press the  [CE] key to clear the unit weight 
    before changing.  
    ·   You can press the  [Zero] key at any time to set the zero point from which 
    all other weighing and counting is measured. This w ill usually be necessary 
    only  when  the  platform  is  empty.  When  the  zero  poin t  is  obtained  the 
    “Weight”  display will show the indicator for zero,  “>ZZZZ
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    [Tare]  key to set the preset zero value. 
    ·   If the display was at zero the weight will show a n egative value equal to 
    the preset tare value entered and the “ Net” indicator will be on.   
    6.3  PARTS
    6.3.1  Setting Unit Weight 
    I n order to do parts counting it is necessary to kno w the average weight of the items 
    to be counted. This can be done by weighing a known  number of the items and letting 
    the  scale  determine  the  average  unit  weight  or  by  m anually  inputting  a  known  unit 
    weight using the keypad. 
    A.  Weighing a sample to determine the Unit Weight 
    To determine the average weight of the items to be  counted, you will need to 
    place a known quantity of the items on the scale an d then to key in the number 
    of  items  being  weighed.  The  scale  will  then  divide  the  total  weight  by  the 
    number  of  items  and  display  the  average  unit  weight .  Press  [CE]  anytime  to 
    clear the unit weight. 
    ·  Zero the scale by pressing the  [Zero] key if necessary. If a container is to 
    be used, place the container on the scale and tare  by pressing [Tare] as 
    discussed earlier. 
    ·   Place a known quantity of items on the scale. After  the weight display is 
    stable, enter the quantity of items using the numer ic keys and then press 
    the  [Smpl]  key.  
    ·   The  number  of  units  will  be  displayed  on  the  "Count"  display  and  the 
    computed average weight will be shown on the  "Unit Weight" display.  
    ·   As  more  items  are  added  to  the  scale,  the  weight  an d  the  quantity  will 
    ·   If a quantity which is smaller than the sample is p laced on the scale, then 
    the scale will automatically enhance the Unit Weigh t by re-calculating it. 
    To lock the Unit Weight and avoid re-sampling, pres s [U. Wt./Units]. 
    ·   If  the  scale  is  not  stable,  the  calculation  will  no t  be  completed.  If  the 
    weight is below zero, the  “Count” display will show negative count.  
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    B.  Entering a known Unit Weight 
    ·  If the unit weight is already known then it is poss ible to enter that value 
    using the keypad.    
    ·   Enter  the  value  of  the  unit  weight  in  grams,  using  the  numeric  keys 
    followed by pressing the  [U. Wt./Units] key. The "Unit Weight"  display 
    will show the value as it was entered.  
    ·   The sample is then added to the scale and the weigh t will be displayed as 
    well as the quantity, based on the unit weight. 
    6.3.2  Counting more parts 
    ·   After  the  unit  weight  has  been  determined  or  entere d,  it  is  possible  to 
    use the scale for parts counting. The scale can be  tared to account for the 
    container weight as discussed in the earlier sectio n.  
    ·   After  the  scale  is  tared  the  items  to  be  counted  ar e  added  and  the 
    "Count"  display will show the number of items, computed usi ng the total 
    weight and the unit weight. 
    ·   It  is  possible  to  increase  the  accuracy  of  the  unit   weight  at  any  time 
    during  the  counting  process  by  entering  the  count  d isplayed  and  then 
    pressing the  [Smpl] key. You must be certain that the quantity display ed 
    matches the quantity on the platform before pressin g the key. The unit 
    weight  can  be  adjusted  based  upon  a  larger  sample  q uantity.  This  will 
    give greater accuracy when counting larger sample s izes. 
    6.3.3  Check-counting 
    ·   Check-counting  is  a  procedure  to  cause  an  alarm  to  sound  when  the 
    number of items counted on the scale meets or excee ds a number stored 
    in the memory by using the  [Pst] key. 
    ·   The value to be stored is entered from the keyboard . Enter the numeric 
    value  to  be  stored  using  the  numeric  keys.  Then  pre ss  the [Pst] key  to 
    store the value. 
    ·   To  clear  the  value  from  the  memory  and  thereby  turn   off  the  check-
    counting feature, enter the value "0" and press  [Pst]. 
    ·   During counting if the count is below the setpoint  the “Lo” indicator will 
    be on, if it is equal to the set point the  “OK” indicator will be on and if it is 
    above the limit the  “Hi” indicator will be on. 
    6.3.4   Manually Accumulated Totals 
    ·   The values (weight and count) shown on the display  can be added to the  
    							 P a g e 14                       © Adam Equipment Company 2014 
    values in the memory by pressing the  [M+] key. The  "Weight"  display will 
    show  the  total  weight,  the  "Count" display  will  show  the  total 
    accumulated count and the  "Unit Weight" display shows the number of 
    times, the items have been added to the memory for  accumulation. The 
    values will be displayed for 2 seconds before retur ning to normal. If the 
    accumulated number exceeds 6 digits the display wil l show “diSPEr” , the 
    count is still being stored correctly and the RS232  printout will still show 
    the correct values.  
    ·   The  “Mem”  symbol  will  be  on  when  there  are  values  stored  in  t he 
    accumulation memory. 
    ·   The  scale  must  return  to  zero  or  a  negative  number,   before  another 
    sample can be added to the memory.  
    ·   More products can then be added and the  [M+] key to be pressed again. 
    This  can  continue  for  up  to  99  entries  or  until  the   capacity  of  the 
    “Weight”   display  is  exceeded.  When  the  weight  exceeds  6  dig its  the 
    display will show  “diSPEr”. 
    ·   To observe the total  stored value, press the  [MR] key. The  total will be 
    displayed for 2 seconds.   
    ·   To clear the memory- first press  [MR] to recall the totals from memory 
    and then press the  [CE] key to clear all values from the memory. 
    6.3.6  Automatic Accumulated Totals 
    ·  The scale can be set to automatically accumulate to tals when a weight is 
    placed  on  the  scale.  This  eliminates  the  need  to  pr ess  the [M+]  key  to 
    store  values  into  the  memory.  However  the   [M+]  key  is  still  active  and 
    can  be  pressed  to  store  the  values  immediately.  In  this  case  the  values 
    will not be stored when the scale returns to zero. 
    ·   See  the  Section  9.0  on  RS-232  Interface  for  details   on  how  to  enable 
    Automatic Accumulation.                                                                                           
    							 P a g e 15                       © Adam Equipment Company 2014 
    The parameters are set to customise the scale to su it the weighing applications. You 
    need to enter a secure menu by entering a password  when requested. 
    ·   Press   [Tare]   once,  during  the  initial  counting  of  the  display  a fter  the 
    power is turned on.    
    ·   The  “Weight”   display  will  show  "PIn          "  requesting  for  the  password 
    ·   The default password is  "0000" but other numbers can be set using the 
    parameter menus. Press the  [0] key four times.   
    ·   Press the  [Tare] key.   
    ·   There are 3 functions that can be cycled through us ing the [U. Wt./Units]  
    key.  The Weight window will show the parameter num ber and the Unit 
    Price window will show the word describing the func tion.  
    ·   The first parameter is  “F1”  “CAL”.  (See section 8.0 for details) 
    ·   To enter into Calibration function, press the  [Tare] key.   
    ·   To exit a parameter, press the  [Zero] key.   
    ·   To select the second parameter press the  [U. Wt./Units] key.  
    							 P a g e 16                       © Adam Equipment Company 2014 
    ·  Display  will  show   “F2”  “Pin”.  This  parameter  allows  setting  of  a  new 
    password number.  The default password is  “0000”.  
    ·   Press  [Tare] . The “Weight”  display will show  "Pin 1". 
    ·   Enter  the  new  password  number.  The  “Unit  Weight”  display  will  show 
    dashes. Press  [Tare]. 
    ·   The  “Weight”  display will change to  "Pin  2 ", Enter the password again 
    and press  [Tare]. 
    ·   The  display  will  show   "donE"  to  show  the  new  password  has  been 
    accepted  and  will  return  to  the  menu.  Record  the  ne w  password  in  a 
    secured place. 
    ·   To exit a parameter, press the  [Zero] key.   
    ·  Display will show  “F3” “Unit”. This parameter allows weighing units to be 
    enabled or disabled. If enabled the weighing units  will change when the 
    [U.Wt./Unit]  key is pressed. See section 6.0. 
    ·   To enter this function press the  [Tare] key. 
    ·   The  display  will  show  the  first  weighing  unit  and  i f  it  is  currently  On  or 
    Off.   Press the  [U.Wt./Unit] key to change the setting and then press the 
    [Tare]   key  to  go  to  the  next  weighing  unit.  The  weighing  units  selected 
    will depend upon the model and the capacity of the  scales.  See Section 
    12.2, Service Parameters. 
    ·   Press the  [Zero] key to return to the weighing mode.  
    							 P a g e 17                       © Adam Equipment Company 2014 
    ·   The  GBC/GFC  scales are calibrated using metric weights and  GBC/GFC-a 
    scales  are  calibrated  using  metric  or  pound  weights   depending  on  the 
    unit  in  use  before  calibration.    See  the  Service  pa rameters  section  for 
    more information. 
    ·   The scale will display a value of the weight to be  used for calibration, this 
    value  is  the  last  weight  used  for  calibration.    You   can  enter  a  different 
    value, if desired. 
    ·   For entering Calibration, see section 7.0 Parameter s 
    ·   When  “F1”  “CAL”  is displayed, press  [Tare]. 
    ·   The  display  will  then  show  "unLoAd"  to  request  all  weight  be  removed 
    from the platform.    
    ·   Press the  [Tare] key to set the zero point. 
    ·   The displays will then show the  calibration weight  suggested,  the value 
    is  shown  as  an  integer  number,  it  is  not  possible  t o  have  fractions  of  a 
    kilogram or pound.   For example:    
    LoAd  00004 
    ·  Place the calibration weight on the platform. If th e calibration weight is 
    different from the value shown, Press  [CE] to clear the current value then 
    enter the correct value.    
    ·   Press  [Tare]  to calibrate. 
    ·   When calibration is done the display will show  “SPAn”  “PASS”. 
    ·   Remove the weight. The scale will return to normal  weighing.   
    ·   If an error message  “SPAn” “FAIL” is displayed, then repeat the process. 
    ·   After calibration, the scale should be checked whet her the calibration is 
    correct. If necessary, repeat calibration. 
    NOTE: GBC/GFC-a  scales will have the lb  or kg indicator on, to sho w the unit of the 
    weight  requested.  If  the  scale  was  in  pounds  before   starting  the  calibration,  the 
    weights  requested  will  be  in  pound  values  or  if  the  scale  was  weighing  in  kilograms 
    then metric weights will be requested.   
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    9.0  RS-232 INTERFACE 
    The  GBC/GFC   Series  are  supplied  with  a  RS-232  bi-directional  i nterface.  The  scale 
    when connected to a printer or computer through the  RS-232 interface, outputs the 
    weight, unit weight and count.  
    The scale can be set to print text in English, Fren ch, German or Spanish.  See the RS-
    232 parameters section for details.  
    All lines end with line feed ,  and carriage re turn characters. 
    RS-232 output of weighing data  
    ASCII code 
    Adjustable Baud rate, 600, 1200, 2400, 4800, 9600 a nd 19200 baud 
    8 data bits 
    No Parity 
    9 pin D-subminiature socket  
    Pin 3  Output 
    Pin 2  Input 
    Pin 5  Signal Ground  
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