Adam Equipment PGW Precision Balances PGWMrevB1 User Manual

							 
© Adam Equipment Company 2011  
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7  KEYPAD 
 
 
 
The keypad has the following keys to operate the ba lance. 
Keys  Primary function  Secondary function 
 To turn the balance to ON or  
Standby 
- 
[
 0/T ] or  
[Esc]  A combined zero and tare  
function  To escape from setup 
functions and modes 
[Unit] / 



 or 
[Down]  Selects weighing units by  
cycling through a set of 
enabled units  To decrement or change a 
displayed value or scroll 
through options backwards
 
[Mode] / 
 or  
[Advance]  Enters the Mode Selection  
Menu  To advance a flashing digit 
by one position to the right. 
 
To go back by one step  
during setup functions 
[Print] / 
 or 
[Back]  Instructs the balance to print  
data  To advance a flashing digit 
by one position to the left 
[Cal] /    
or 


 
[Up] 
 
Starts the calibration function    To increase or change a 
displayed value or scroll 
through options forward 
[Setup]/              
or
 [Enter]  Enters the Setup parameters 
(Supervisor Menus)  Enters a function or saves 
a value while manually 
manually  entering unit 
weight or check weighing 
limits  
 
7.1  NUMERIC ENTRY METHOD 
 
To set a value when required, use the keys as given
 below- 
 
         - [Up] and  [Down]  keys to increase or decrease the flashing digit,  
         -  [Advance]  and [Back]  keys to advance or move back the digit and  
         -  [Enter]  key to accept the value    
						

							 
© Adam Equipment Company 2011  
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8  INPUT/OUTPUT 
 
 
 
The rear panel has connectors for RS-232 serial and  a power 
input socket.   Required  power  input  is a  low-voltag e  external 
supply, 15VDC @ 800mA.      
   
						

							 
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9  OPERATIONS 
9.1  INITIALISATION 
 
When the  balance  is  first  switched  on, it  
will display the balance serial number (if 
set),  software  revision,  model  capacity 
and then all segments on the display will 
be  shown.    Overall  the  time  taken  is 
usually 5 -10 seconds.  
If  an  operator  passcode  has  been  set,  the  display  w ill  show  “PASSCODE ”  and 
the main display will show a zero.  In this case yo u must enter the passcode 
to  continue  using  the  numeric  entry  method  (see  sec tion  7.1).  A  different 
passcode  may  be  set  for  a  Supervisor  to  weigh  or  to   have  access  to  the 
selected  User  menus.      If  the  passcode  has  not  been   set  the  balance  will 
continue as below.  
 
  The display will show zero reading along  
with  the  zero  symbol  “
0” and  the 
weighing  unit  last  used.    If  automatic 
time  calibration  is  enabled  the  balance  
will  calibrate  15  minutes  after  power  up  
or again after the pre-set time interval. 
   
 
9.2  PASSCODES 
 
If  a  passcode  has  been  set  to  limit  access  to  the  w eighing  functions  of  the 
balance  the  display  will  show  “PASSCODES”  with  the  main  digit  set  to  zero.  
Use  the  numeric  entry  method  (see  section  7.1)  to  e nter  the  code.  The 
display  will  change  to  show  7  digits  set  to  zero  wi th  the  rightmost  digit 
flashing.  Make  sure  to  enter  the  correct  passcode  t o  continue.    See  the 
Section 13.5 for details.      
						

							 
© Adam Equipment Company 2011  
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9.3  WEIGHING 
 
·
  Press  [ 0/T ] to zero the balance, if required 
 
·  “ 0  “ will be displayed  
 
·  Place a mass on the pan and the weight will be dis played 
 
·  If a container is used press  [ 0/T ] to tare the balance when the 
balance symbol “~” is on. “Net” will be displayed t o indicate that the 
balance is tared 
 
·   When  the  display  shows  zero,  place  the  item  to  be  weighed.  Only  the 
net  weight  will  be  displayed.  The  capacity  tracker  at  the  bottom  of  the 
LCD  will  indicate  the  weight  graphically  with  respe ct  to  the  maximum 
weighing capacity 
 
·   At  any  time  the  [Unit] key  may  be  pressed  to  select  another  unit.  Use 
the  [Up]  or [Down]  key to scroll through the units and select the des ired 
unit  by  pressing  [Enter],  the  display  will  change  to  show  the  weight  in 
the selected weighing unit. The available weighing  units can be enabled 
or  disabled  by  the  user  (see  section  13.1).  Only  we ighing  units  that 
have been enabled will be cycled through when  [Unit] is pressed 
  
9.3.1  Weighing Units 
 
You  can  select  alternative  weighing  units  to  displa y  the  weight  by  pressing 
the  [Unit]  key.  The available weighing units are: 
 
  Unit  Symbol  Models  Conversion Factor 
1g = Conversion Factor 
1 unit = grams 
1  GRAMS  g  All  1  1.0 
2  MILLIGRAMS  mg  not 0.01g units  1000  0.001 
3  KILOGRAMS  kg  All  0.001  1000 
4  CARATS  ct  All  5  0.2000 
 
It  is  possible  to set  the  balance  to  display  only  g rams.    Grams  will  always  be 
one of the units enabled, by default.   
 
The  balance  displays  the  alternate  weighing  units  w ith  as  much  precision  as 
possible.  For example, the 450g x 0.001g balance c ould weigh up to: 
 
Unit  Maximum  d =  
g.  450g  0.001 
Mg  450000  1 
Kg  0.450000  0.000001 
ct.  2250  0.01   
						

							 
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9.4  FUNCTIONS 
 
When weighing, the user can access the applications  that have been enabled 
(see section 13.2). 
 
The following applications are available: 
· Weighing 
·  Parts counting  
·  Percent weighing 
·  Check weighing 
·  Animal / dynamic weighing 
·  Net / total 
·  Density determination 
 
The selectable functions can be enabled using a sim ilar method to the Units 
above by turning the functions on or off.    
9.4.1  Parts Counting 
 
This  allows  the  user  to  weigh  a  sample  of  parts  to  compute  an  average  unit 
weight and then determine the number of items being  weighed by dividing the 
net  weight  by  the  unit  weight  value.    The  result  is   always  a  whole  number  of 
parts. 
 
The  balance  will  have  a  preset  number  of  parts  to  b e  used  as  a  sample. 
These values are 10, 25, 50 or 100 items. 
 
Steps: 
 
·   Press  [Mode] to show parts counting, “PARTS” will be displayed 
 
·  Enter parts counting by pressing  [Enter] 
 
·  Press  the  [Up] or [Down]   key  to  select  the  sample  size,  “REF  QTY”,  
10, 25, 50, 100, etc., then press  [Enter] to confirm 
 
·  When  “LOAD  XX  Pcs”  is  shown  place  XX  number  of  items  on  the  pan 
and  press  [Enter] to  compute  the  average  piece  weight.  Display  will 
indicate  the  total  weight  in  the  last  selected  unit   and  then  show  “XX 
Pcs” sounding a beep. A message “PARTS” will be pro mpted on the top 
of the display to indicate that the balance is in t he parts counting mode 
 
·  Remove the sample and display will show “0 Pcs”.  
  
						

							 
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·  Place  an  unknown  quantity  on  the  pan.  The  balance  will  then  compute 
the number of parts based on the average piece weig ht. The display will 
show the result in Pcs 
 
·   To count another item press  [Mode] and continue as before 
 
·  Checks will be made to determine that the weight o f the reference parts 
is large enough for reasonably accurate counting (w eight of each piece 
must be > 1d) 
 
·   To return to normal weighing, press  [Esc]  
9.4.2  Percent Weighing 
 
Percent  weighing  will  be  done  by  defining  a  certain   weight  to  be  100%.    The 
weight to be used can either be entered by the user  or taken from a sample 
 
·  Press  [Mode] and then the  [Up] or [Down]  key to select Percent 
weighing, “PERCENT” will be displayed 
 
·   Press  [Enter] to enter the function 
 
·  Display will show, “PERCENT SAMPLE” 
 
·  Press  [Enter] to  select  the  sample  method  or  scroll  to  manually  e nter 
the sample weight as given below 
 
·   When “LOAD 100 %“ is shown, add the sample 
 
·  Press  [Enter] to set this weight to be 100%. The display will sho w “REF 
WT”  and  the  sample  weight  in  the  last  selected  unit .  After  a  while 
“100%”  will  be  displayed.  A  message  “PERCENT”  will  be  prompted  on 
the  top  of  the  display  to  indicate  that  the  balance   is  in  the  percent 
weighing mode 
 
·   Remove the sample and “PERCENT 0.00%” will be disp layed 
 
·  Place an unknown sample to display the percentage  weight  
 
·  To set another weight as 100%, press  [Mode] and continue as before 
 
·  To manually enter a value to be set as 100%, press  [Up]  or [Down]  key 
when “PERCENT SAMPLE” is shown to select “PERCENT E nt Wt” 
 
·  Press  [Enter].  Display  will  show  the  value  in  the  unit  last  used   in  the 
weighing mode 
  
						

							 
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·  Enter the weight using the numeric entry method (s ee section 7.1).  
 
·   Place unknown sample to display the percentage wei ght  
 
·  To  perform  percent  weighing  with  another  sample  pr ess [Mode]   and 
continue as before 
 
·   To return to normal weighing, press  [Esc] 
  
NOTE:
  Percentage will be initially displayed to the maxim um number of 
decimal places based on the resolution of the balan ce. To increase or 
decrease by one decimal place, press the  [Up] or [Down]  key respectively. 
  
9.4.3  Check Weighing 
 
During  weighing  of  a  sample  the  balance  can  be  set  to  show  if  the  weight  is 
above  or  below  an  upper  and  a  lower  limit.    The  dis play  will  use  the  arrows 
under  the  bar  graph  to  show  that  check  weighing  is  operating.      The  bars 
between  the  arrows  will  indicate  when  the  weight  is   below  the  lower  limit, 
between the limits or above the upper limit. 
 
  
The  buzzer  can  be  set  to  be  active  when  the  weight  is  outside  the  limits 
(below the lower or above the upper) or within the  limits (above the lower and 
below the upper limit), or turned off.  If desired,  only one limit needs to be set. 
If  only  one  limit  is  set  the  other  limit  is  conside red  to  be  zero  (lower)  or  the 
maximum (upper). 
 
The  Check  weighing  is  not  active  when  the  weight  is   less  than  20d.  This  is 
the minimum weight at which the indicator bars are  displayed and the buzzer 
sounds, if it is not set to OFF (see the next page) . 
 
Steps:   
 
·  Press  [Mode]  and  then  the  [Up]  or  [Down]   key  to  select  Check 
Weighing.    When  “CHECK”  is  displayed  press  the  [Enter] key  to  enter 
Check Weighing mode 
 
·   Press  [Up] or [Down]  to set the “LOW LIMIT” to “On” or “OFF” 
 
·  Press  [Enter]  to  proceed.    If  the  “LOW  LIMIT”  was  set  to  “On”  th e 
display  will  show  the  current  low  limit  in  the  unit   last  used  in  the 
weighing  mode.  You  may  change  the  limit  using  the  n umeric  entry 
method (see section 7.1).    
						

							 
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·  Press  [Enter] to proceed 
 
·  If  the  “LOW  LIMIT”  was  set  to  “OFF”  or  the  setting   of  the  low  limit  is 
complete,  then  the  display  will  change  to  “HIGH  LIM IT”.  Use [Up]  and 
[Down]  to set the “HIGH LIMIT” to “On” or “OFF”  
 
·  Press  [Enter]  to proceed  
						

							 
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·  If  the  “HIGH  LIMIT”  was  set  to  “On”,  the  display  w ill  show  the  current 
high  limit  in  the  last  selected  unit  which  can  be  c hanged  in  the  same 
way as in case of “LOW LIMIT” 
 
·  Press  [Enter] to proceed 
 
·  Next  the  beeper  setting  is  displayed.  Press  [Up]  or [Down]   to  scroll 
through the options –     
“BUZZER OFF”   (Beeper set to off at all times)  
“BUZZER In”   (Beeper  will  sound  when  the  weight  on  the  pan  is 
                              
stable and within the limit)     
“BUZZER Out”    (Beeper  will  sound  when  the  weight  o n  the  pan  is 
stable and outside the set limits) 
 
·   Confirm the beeper setting by pressing  [Enter] 
·   When  a  weight  is  placed  on  the  pan  now,  the  displa y  will  indicate 
whether  the  weight  is  below  the  LOW  LIMIT  between  t he  LOW  and 
HIGH LIMITS or higher than the HIGH LIMIT using the  capacity tracker,  
 
·  To  perform  check  weighing  with  another  sample  pres s [Mode]   and 
continue as before 
  
·  To return to normal weighing, press  [Enter] 
  
9.4.4  Animal / Dynamic Weighing    
The  balance  can  be  set  to  weigh  animals  or  moving  i tems,  also  known  as 
dynamic weighing. The balance will collect the weig ht over a period of time to 
arrive  at  an  average  value  and  display  the  value  un til  the  operator resets  the 
balance.  The  actual  weighing  process  can  begin  eith er  automatically  when 
the  weight  is  placed  on  the  pan  or  when  initiated  b y  the  operator.  The 
weighing  unit  can  be  selected  as  normal  using  the  [Unit]  and [Enter]   keys, 
before entering the Animal / Dynamic Weighing proce ss. 
  
						

							 
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Steps:  
  
·  Press  [Mode]  and  then  the  [Up]  or [Down]   key  to  select  Animal  / 
Dynamic Weighing.  When “ANIMAL” is displayed press  [Enter]  to enter 
Animal Weighing mode 
 
·  Press  [Up] or [Down]  to  select  “rUN”  for  starting  the  animal  /  dynamic 
weighing  using  the  method  previously  set  or  “SEtUP”   to  set  up  the 
balance for animal weighing (see the section 9.4.4. 1 Animal Weighing 
Setup Parameters ) 
   
MANUAL MODE
 
  
When the balance is in the MANUAL mode –
  
 
If  [Enter]  is pressed when “rUN” is selected, balance will di splay “START ?” 
 
Place the item on the pan and press [Enter] again 
 
After  the  configured  Delay  and  test  time  are  comput ed  by  the  balance,  the 
result  will  be  displayed  by  showing  “FINISHED  xx.xx  x”  after  a  pre-set  time 
Delay and Sampling period (see the section 9.4.4.1 Animal Weighing Setup 
Parameters) 
  
AUTO MODE
 
  
When the balance is in the AUTO mode –
 
 
If  [Enter]  is pressed when “rUN” is selected, balance will di splay “LOAD PAN” 
 
Place the item on the pan. The animal weighing test  will begin automatically 
 
After  the  configured  Delay  and  test  time  are  comput ed  by  the  balance,  the 
result will be shown displaying “FINISHED xx.xx x” (see the section 9.4.4.1 on 
Animal Weighing Set-Up Parameters) 
 
·  During animal weighing if the  [Print] key is pressed, the balance will 
display “PAUSED” and show the current average weigh t 
 
·  To resume, press  [Print] again or 
 
·  Pressing  [Mode] will display “STOPPED” and terminate the weighing