Adam Equipment PGW Precision Balances PGW2revA User Manual

							 
© Adam Equipment Company 2010                        29 
INPUT COMMANDS USING REMOTE KEYS   
The  balance  can  be  controlled  with  the  following  co mmands  sent  using 
remote keys such as from a  PC. The commands must  be   sent  in upper case 
letters,  i.e.  “ KT”  not  “ kt”.  Press  the  Enter  key  of  the  PC  after  each  command  
(the action of Carriage Return is denoted as  a s shown below). 
 
Basic Input Commands: 
 
!KT     Tares  the  balance  to  display  the  net  weight.  This  i
s  the  same  as  pressing 
the  [Zero / Tare]  key when the balance is in the normal weighing mod e. 
 
!KS  Enters  the  Setup  section.  This  is  the  same  as  press ing  the [Setup]  key 
when the balance is in the normal weighing mode.   
Once  entered  the  Setup  section,  the  balance  can  be  controlled  remotely 
using  the  Input  Commands  (as  mentioned  in  this  tabl e)  which  will  perform 
the same key functions as described in section 13.0 . 
 
!KP     Transmits  data  over  RS-232  interface.  This  is  the  s
ame  as  pressing  the 
[Print]  key when the balance is in the normal weighing mod e. 
 
!KM  Enters  the  Modes  section.  This  is  the  same  as  press ing  the [Mode]  key 
when the balance is in the normal weighing mode.   
!KC  Enters  the  Calibration  section.  This  is  the  same  as   pressing  the [Cal]  key 
when the balance is in the normal weighing mode.   
!KU  Enters  the  Unit  selection  section.  This  is  the  same   as  pressing  the [Unit] 
key when the balance is in the normal weighing mode . 
 
    
Invalid Input Command:
 
  
If an invalid command is received, then the command  is returned as follows- 
 
Invalid Command  Message returned  Remarks 
!NT  !EU  Command character is not ‘K’  
!KK  !EK  Key character  is not ‘T’, ‘S’, ‘P’,  ‘M’, ‘C’ 
or ‘U’ 
!KT-  !EF  Command  format  error,    is  not  the fourth character 
 KT  or  
!KT -  No reply  Either  ‘!’  or    is  missing  in  the 
command string 
  
						

							 
© Adam Equipment Company 2010                        30 
   
12.0  ERROR CHECKING 
 
During  weighing  the  balance  is  constantly  checking  to  see  if  it  is  operating 
within the limited parameters.  The errors likely t o occur are: 
  
  A/D counts below lowest allowed value  
  A/D counts above highest allowed value  
  A/D not operating 
  Maximum capacity exceeded  
Other  errors  may  be  detected  during  special  functio ns  or  operations.    These 
will be described in the section that applies.  
Error messages and the reasons are: 
Concerning A/D counts 
ERROR ADc UL  A/D counts below a limit 
ERROR ADc OL  A/D counts above a preset limit 
Concerning calibration 
ERROR StAb  Calibration could not be completed   
because the results were not stable   
ERROR LO or  ERROR HI 
Calibration constant not within 20% of old  
calibration constant 
Concerning weighing 
ERROR LO  Weight display is below zero by >4%max 
ERROR LOAd  Weight is above maximum plus 90d  
						

							 
© Adam Equipment Company 2010                        31 
 
13.0  SUPERVISOR MENUS 
 
Pressing  the [Setup] key  while  in  normal  weighing  gives  access  to  the 
menus.    
  When  [Setup]  is  pressed  and  the  Supervisor  Passcode   is  not 
enabled the display will show the Supervisor menus.   If passcode is 
enabled, the balance will ask for it by displaying  “PASSCODE 0”   
 
  If  a  wrong  code  is  entered  an  “ERROR  CODE”  message   will  flash  and 
the balance will return to weighing mode 
 
  If  the  passcode  has  been  enabled  and  entered,  the  balance  will  allow 
the  operator  to  access  the  Supervisor’s  menus  by  wh ich  the  user  can 
enable/disable weighing units or modes, set balance  parameters for the 
conditions,  set  time  and  date,  set  parameters  for  t he  RS-232  interface, 
calibration parameters and security parameters 
 
  The  display  will  show  the  first  menu  item  “UNITS”.   The [Up]  and 
[Down]   keys  will  cycle  through  the  main  menu  items,  press ing  the 
[Enter]  key  will  enter  the  sub-menu  or  options  can  be  set.  Press 
[Mode]
 to  come  out  of  a  sub-menu  or  [Esc]  to  return  to  normal 
weighing 
 
  
13.1  ENABLE WEIGHING UNITS 
   
   When  “UNITS”  is  displayed,  press  [Enter].    The  display  will  show  the 
symbol  for  the  first  unit,  e.g.  carats,  ct,  togethe r  with  its  enable  state 
“OFF”  or  “On”.  The  user  can  then  enable  or  disable  the  carats  unit  by 
using  [Up]  or [Down] .  Pressing  [Enter] will  confirm  the  setting  and  will 
advance  to  the  next  weighing  unit.    Repeat  for  each   weighing  unit  in 
turn.  Gram is always enabled 
 
  Press  [Mode]  to advance  to setting of the  next  menu  or  press  [Esc] to 
return to normal weighing 
 
13.2  ENABLE WEIGHING MODES 
 
Same steps are followed to enable or disable the we ighing modes. 
 
  Press  [Enter] when  “MODES”  is  displayed.  The  display  will  show  th e 
first mode i.e., Parts Counting (“PARTS”) together  with its enabled state  
						

							 
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“OFF” or “On”. The user can enable or disable the p arts counting mode 
by  using  [Up]  or [Down] .  Pressing  [Enter]  will  confirm  the  setting  and 
will advance to the next weighing mode. Repeat for  each mode in turn 
 
  Press  [Mode]  to advance  to setting of the  next  menu  or  press  [Esc] to 
return to normal weighing 
 
 
13.3  ENABLE SERIAL INTERFACE PARAMETERS 
 
The  parameters  affecting  the  serial  setup  are  set  i n  a  similar  manner  to  the 
other parameters.    
Press  [Enter]  when “SERIAL” is displayed to enter the sub-menu.   
 
The parameters that can be set are:     
ENABLE  The serial port can be set to On or OFF   
BAUD RATE   Set  the  Baud  Rate  to  4800,  9600,  19200  or  38400,  th
e 
default rate being 4800  
PARITY    Set the Parity to NONE, EVEN or ODD  
STABLE  To print when stable (On) or regardless of s
tability (OFF) 
 
CONTINUOUS Set the RS-232 to send data continuously to On or O FF 
 
PERIODIC  Set the RS-232 to send data periodically ( set in seconds) 
to On or OFF. If On is selected, the value can be c hanged 
between 1 and 999 seconds, using  [Up] and  [Down]   
 
FORMAT    To  send  data  as  a  single  line  of  data,  using  the  st
andard 
format  or  using  a  customer  designed  format  (FORM  1  or 
FORM 2).  
    
Format of custom forms #1 and #2
 
  
If  FORM1  or  FORM2  is  selected,  it  can  be  changed  by   the  user  using  a 
selection  of  available  data.    By  default  the  2  form s  are  the  same  as  the 
standard form unless changed by the user as below. 
  
						

							 
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When  FORM  1  or  FORM  2  is  selected  the  user  can  set  the  information  to  be 
printed  on  each  line  of  the  form.    Pressing  the  [Up] or  [Down]  keys  will  cycle 
through the options available. The options are:
 
INST ID  Instrument ID number 
SER No  Serial Number 
TIME  Time  
DATE  Date 
NET  Net Weight (Gross weight – Tare Weight) 
GROSS  Gross Weight 
TARE  Tare Weight 
UNIT  Unit weight in parts counting mode 
COUNT  Number of items in parts counting mode 
REF  100% weight in percent weighing mode 
PERCENT Percentage of reference weight in percent weighing 
LO LIMIT  Low Limit when check weighing 
HI LIM  High Limit when check weighing 
Cr Lf  Inserts a blank line 
END  Signifies the end of the report  When END is entered the display returns to the RS-2 32 Sub-menu
 
 
Enter  the  data  to  be  printed  on  the  first  line  by  pressing  the [Up] or  [Down]  
key  to  cycle  through  the  options.  If  the  current  in formation  is  OK  then  press 
the  [Setup]/Enter  key to move to the next line.  
 
e.g. “LINE No1”  “DATE” - prints date  
 
Select a code for one of the preset data formats as  detailed above. 
 
The next line shows:  “LINE NO 2”   “TIME” - prints time 
Only one item can be entered per line. 
 
Continue  until  the  formatting  of  the  form  is  comple te.  There  are  15  lines  of 
possible  data.  After  the  15th  line  has  been  set  or  “END”  has  been  selected, 
the balance will return to the RS-232 Sub-menu. 
 
Press  [Mode]  to advance to setting of the next menu or press  [Esc] to return 
to normal weighing. 
 
13.4  SETUP PARAMETERS 
 
The  user  parameters  that  control  the  balance  are  sh own  under  the  SETUP.  
When  “SETUP”  is  displayed,  press  the  [Setup]/Enter key.  The  options  for 
each parameter can be scrolled through by using the  [Up]  or [Down]  key.   
  
						

							 
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LANGUAGE 
  English  
French 
German 
Spanish 
 
 TIME  Set  Time  using  the  numeric  entry  method 
(see section 7.1)    
 
 DATE    DATE FORM  
               EUROPE (dd/mm/yy)
 
                       USA (mm/dd/yy)                         
Set  Date  using  the  numeric  entry  method  
(see section 7.1) 
 
 INST ID  Enter a user number to identify this balan ce  
 
 BUZZER   On= Enable 
OFF= Disable 
 
 BACKLIGHT   On  
OFF  
AUTO (default) 
 
 POWER DOWN   
Set the time after which the unit will go into 
Stand-by  power  settings,  On=Enable, 
OFF=Disable, If set to On-             
the options are 1 to 9 minutes 
 
 FILTER   Set  a value  for the amount of filtering to be 
done ranging from 1 to 10. A larger number 
means  more  filtering  and  a  slower 
response.  
 
 STABILITY   Set  a  value  to  be  used  to  determine 
balance  stability,  set      a  value  of  1,  2,  5  or 
10d.    A  larger  number  corresponds  to  a  
larger stable zone. Default is 5 
 
AUTO ZERO  Can  be  set  to  On  or  OFF  to  enable  the 
auto-zero function. If set to  On- select from  
1, 2 or 5d
 
 
The sub-menu is entered by pressing  [Enter] –  
  Use  the  [Up] and [Down]   keys  to  increase  or  decrease  the  value  for 
setting.  Press  [Enter] to  accept  the  setting  and  advance  to  the  next 
item in the menu 
 
   Press  [Mode]  to  advance  to  setting  of  the  next  parameter  or  [Esc] to 
return to normal weighing 
 
  
						

							 
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13.5  CALIBRATION SETUP 
 
This menu allows the user to set the calibration pa rameters.  
  Press  [Enter]  when  “CAL  SETUP”  is  displayed  to  select the  calibr ation 
parameters 
 
   The  options  for  each  parameter  can  be  scrolled  thr ough  by  using  the 
[Up]  or [Down]  key 
 
ENABLE  NO =operator calibration is disabled  
YES=operator calibration is enabled 
CAL REPORT  On  =  Enabled.  Prints  out  Calibration report after successful calibration  
OFF = Disabled 
TIME CAL  On  =  Enabled.  Select  time  from  1  to  24 hours. Default setting is 4 hours  
OFF = Disabled 
TEMP CAL  On  =  Enabled.  If  set  to  On,  set  the temperature variation from 0.2 to 4°C  
OFF = Disabled 
INT CAL  
(Only on balances with 
internal calibration masses) YES  =  Use  Internal  calibration  mass  as 
displayed  or  adjust  for  accurate  Internal 
Calibration (see section 13.5.1)  
NO = Use external calibration mass 
 

  Press  [Mode]  to  advance  to  setting  of  the  next  menu  which  is 
“PASSCODES” or  [Esc] to return to normal weighing. 
  
13.5.1  INTERNAL CALIBRATION MASS ADJUSTMENT 
 
Balance model  Internal Calibration mass (approx.) 
PGW 153i  130 g 
PGW 253i  130 g 
PGW 453i  270 g 
PGW 603i  550 g 
PGW 753i  500 g 
PGW 1502i  520 g 
PGW 2502i  1300 g 
PGW 3502i  1300 g 
PGW 4502i  1300 g 
PGW 6002i  1300 g 
  
						

							 
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NOTE: The value of the internal mass is not an exact numb er, such as 100g.  
It  must  be  set  by  comparing  with  an  external  mass.    The  exact  value  can  be 
set, provided this feature is enabled at the factor y. 
PROCEDURE
  
   Make sure the balance is level and has been ON lon g enough to reach 
a stable temperature. 
 
  Calibrate  the  balance  twice.  This  helps  to  reduce  any  stresses  in  the 
mechanics. 
 
  To  verify  the  accuracy  of  this  internal  calibratio n,  place  an  external 
mass  approximately  equal  to  the  same  internal  calib ration  mass. 
Record the result.   
 
  When “INT CAL” is displayed select “YES” by pressi ng the [Enter]  key. 
The value of the internal mass set in the factory w ill be displayed. 
 
  A  new  internal  value  can  then  be  reset  to  display  the  external  mass 
value  correctly.  If  the  reading  for  the  external  ma ss  is  greater  than  the 
actual  value  of  the  mass  then  reduce  the  internal  m ass  value  by  the 
difference.  Enter this reduced value when prompted  by the display. 
  For  example,  if  the  internal  mass  previously  set  is   520.054g  and  the 
display  reads  500.050g  when  using  an  external  mass  of  500g,  then 
reduce  the  internal  mass  value  by  0.050g. Enter the   new  revised  value 
of  520.004  (in  place  of  520.054g)  when  prompted.  Th e  adjustment  can 
be done for up to ±100mg. 
 
  Repeat the calibration and check the value of the  external mass again.   
 
  Repeat this procedure until the value displayed is  correct for the mass 
used.  
 
  Press  [Esc] to return to normal weighing. 
 
13.6  PASSCODES 
 
To  enable  the  security  features  in  this  balance  it  is  necessary  to  set 
passcodes. There are 2 passcodes called Operator Pa sscode and Supervisor 
Passcode.  The  Operator  Passcode  allows  an  authorise d  user  to  operate  the 
basic  weighing  functions  of  the  balance  but  will  no t  allow  access  to  the 
Supervisor Menus if the Supervisor Passcode has bee n set.   
  
						

							 
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To  change  or  disable  a  Passcode  it  will  be  necessar y  to  enter  the  current 
passcode.    
 
Press  [Enter]  when “PASSCODES” is displayed  to enter this section. 
  
OPERATOR  Enter  the  current  passcode  (OLD)  first  the n  enter  a  new 
passcode if desired.   A passcode set to zero will  disable 
the security feature and allow unlimited access.     
SUPERVISOR  First  enter  the  current  passcode  (OLD)  a nd  then  enter  a 
new  passcode  if  desired.      A  passcode  set  to  zero  w ill 
disable the security feature and allow unlimited ac cess.   
 
13.6.1  Forgotten Passcodes 
 
Keep  a  record  of  the  passcode  to  ensure  you  can  acc ess  this  section  again.  
If  however  you  have  forgotten  your  passcode  you  can   still  gain  access  by 
entering a universal code. 
 
If  you  have  forgotten  the  current  passcode  a  code  o f  “15”  will  always  allow 
you to enter the Supervisor area.    
 
Using the Supervisor menus go to PASSCODE section.  Reset the operator or 
Supervisor passcode using the “15” code as the old  number when asked. 
  
						

							 
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14.0   PERIPHERALS  
 
The peripherals that can be used with the balance a re the following: 
14.1  DENSITY DETERMINATION KIT   (for 0.001g units only) 
 
The  Density  Determination  Kit  includes  everything  n eeded  to  carry  out 
precise and repeatable measurement. The kit allows  a sample to be weighed 
in air and then a liquid to determine the density o f the sample. It also allows a 
glass sinker of known volume to be weighed in air o r in a liquid, to determine 
the density of the liquid.    
14.2  ANTI-VIBRATION TABLE 
 
The  anti-vibration  table  is  a  support  for  laborator y  balances  that  isolate  the 
balance  from  vibration  through  the  floor.  The  table   has  a  granite  surface  for 
the balance with a separate table top surrounding t he balance.   
14.3  ADAM PRINTERS     
 
The  Adam  printer  is  a  compact  thermal  printer  which   is  ideal  for  use  with 
laboratory  balances.  There  are 3 versions,  one to  print data  as  it  is  received 
from the balance, second one prints data and time a long with weighing data if 
enabled by the balance and the other one has the ab ility to perform statistical 
analysis of the weighing results if enabled by the  balance.