Adam Equipment PTM Drum and Wheelchair Scale GKREVL1 User Manual

							 
9                              © Adam Equipment Company 2013 
  
Figure 1A shows the connections to a 6 wire load ce ll.  Figure 1B shows a preferred 
method  to  attach  a  4  wire  load  cell,  using  a  6  cond uctor  cable  to  go  from  the 
indicator to the platform or load cell where it con nects to the 4 wires from the load 
cells.  The Excitation and sense wires are connecte d together near the load cell. 
For less exacting applications you can connect the  excitation to the sense at the 
connector.               
KEYPAD 
 
  
KEYS  PRIMARY FUNCTION   SECONDARY FUNCTION 
 
[Zero] Sets  the  zero  point  for  all  subsequent  
weighing. The display shows zero.    Escape from any setting menus   
[Tare] 
It  tares  the  indicator  and  stores  the  current  
weight in memory as a tare value, subtracts  
the  tare  value  from  the  weight  and  shows  
the results. This is the net weight.     Accept the set values   
[Unit] 
This  is  used  to  select  the  weighing  units  
from a preset list of available units.  
   Allows the weight, unit weight, and  
count  to  be  seen  when  parts 
counting  or  to  change  from  weight  
to % in percent weighing     
						

							 
10                              © Adam Equipment Company 2013 
 
[Low  
Limit]  
    &  
[High  
Limit] It  sets  the  limits  for  check  weighing  and  
allows  setting  of  either  the  low  limit  or  the  
high limit or both.   
None 
[







Lim]  It stores and recalls any of 10 preset limits    None 
[Func]   
This  is  used  to  select  percent  weighing,  RS- 
232  parameters,  Operation  of  the  bar  
graph, RTC settings, User ID and Scale ID.      None 
[Count]   
Enter Parts Counting   None. 
[Print] 
It  is  used  to  print  the  results  to  a  PC  or  
printer  using  the  RS-232  interface.    It  also  
adds the value to the accumulation memory 
if  the  accumulation  function  is  not  
automatic.    None 
[1]  to  [0]  
and [CE]   
Allow  entering  numerical  values  where 
required,  setting  of  limits,  tare  value,    time  
and date for example.    
						

							 
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DISPLAY 
1.2.  SYMBOLS AND INDICATORS 
  
The LCD has unique symbols to indicate the following : 
 

0  
 The display is at Zero 
 
The scale is Stable 
Net Net weight- The scale has been tared   
kg  /  lb  Symbols shown for the units    
 
 
Capacity  Tracker-  A  bar  graph  indicating  the  propor tion  of  the 
scale capacity being used by the weight on the pan   
  
bAt  LO   or 
 
Low battery    
% The scale is in Percent weighing mode 
pcs The scale is in Parts counting mode 
HI, OK, LO The scale is in Check weighing mode 
: The  colons  “:”  are  used  to  separate  pounds  from  oun ces  and 
for the real time clock. 
   
						

							 
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Next  to  the  LCD  are  a  number  of  LED’s  that  show  whe n  the  weight  is  below,  within 
or over the limits during check weighing.  
  
 
Weight   LED  LCD 
below the low limit  Amber  LO  
Within the limits  Green  OK  
Above the high limit  Red  HI 
 
NOTE:  The  LED’s  can  be  set  by  the  user  to  off,  bar,   spot  or  segment  mode.  See “F3 
LED”  in section 13.1 
  
The  LED  can  be  set  to  display  as  a  bar,  increasing  from  Low  to  OK  to  High,    a  single 
spot increasing from Low, OK to High,   or as a sin gle bar that changes colour as the 
weight progresses from Low to OK to High.    
CALIBRATION  COUNTER FOR APPROVED INDICATORS 
With approved (GK-M Model) indicators we have the a bility to control access to the 
calibration  or  metrology  parameters  using  a  passcod e  to  limit  access.  The 
requirements for doing this  stipulate the code sho uld be apparent and recorded in a 
suitable location on the indicator.      
In this way if the record of the Calibration or Par ameter counters do not agree with 
recorded  settings  the  responsible  person  inspecting   the  indicator  can  take 
appropriate action.  
						

							 
13                              © Adam Equipment Company 2013 
The  Counters  are  incremented  any  time  the  calibrati on  section  or  the  Factory 
parameters section have been modified.     
At  power  on,  the  display  will  show  the  current  soft ware  revision  number    followed 
by  the  message  of  the  Calibration  Count      “ [AL[nt”  then  a  number  i.e.    “123”.      The 
number  from  the  counter  memory.      Then  the  Paramete r  Counter  message  of 
“ PAr[nt ”    and  probably  a  different  number,  i.e.    “234”.      The  counters  cannot  be 
reset to 0, they will increment until the display c an no longer hold the values.  (1 to 
999999).      It  is  expected  we  will  never  have  more  t han  1  million  calibrations  in  the 
life of the machine.     
Each display is held for 1-2 seconds. 
The indicator will then continue to do the display  test and go to normal weighing. 
If  during  the  time  the  counting  displays  are  shown,   the  user  presses  the [Tare]  key, 
the  user  will  be  given  a  message  to  enter  the  passc ode  necessary  to  calibrate  the 
indicator,  “P  -  -  -  -  “      Enter  the  code    “P0000”    to  Enter  calibration  or  “P1000”  to 
enter the parameters, followed by pressing the  [Tare] key.  
The  Calibration  access  will  allow  user  calibration  (See  section  15.1)  and  the 
parameter code will allow access to the following p arameters. (see section 15.2). 
 “F4 Int”         Initial Zero Range  
“F5 rEZ”       Re-Zero range  
“F6 SCS”        Successive Tare Enable 
“F7 Cnt”        Display ADC counts 
“F8 Zem”        Zero Mode   
“F9 Lvd”        Low voltage detection     
Other  parameters  must  be  changed  using  the  service  parameters  as  described  in 
section 15.2  
						

							 
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BATTERY 
·  The  indicators  can  be  operated  from  the  rechargeabl e  battery,  if 
desired. The battery  life is determined by  the numb er and impendence 
of  the  load  cells  connected.      With  a  single  load  c ell  and  backlight 
disabled  the  life  is  approximately  70  hours  before  needing  to  be 
recharged. 
  ·   When  the  battery  needs  charging  a  symbol  on  the  dis play  will  turn  on. 
The battery should be charged when the symbol is on . The indicator will 
still operate for a period of time after which it w ill automatically switch 
off to protect the battery. 
  ·   To  charge  the  battery,  simply  plug  into  the  mains  p ower  supply.  The 
indicator does not need to be turned on. 
 ·   The battery should be charged for 12 hours for full  capacity. 
 ·   To  the  right  of  the  display  is  a  LED  to  indicate  th e  status  of  battery 
charging.    When  the  indicator  is  plugged  into  the  m ains  power  the 
internal battery will be charged.  If the LED is gr een the battery is being 
charged.    If  it  is  red  it  is  nearly  discharged  and  yellow  indicates  the 
battery is increasing the charge level.  Continue t o charge overnight for 
a complete re-charge. 
 
BACKLIGHT 
The  backlight  for  the  LCD  can  be  set  by  the  user  to   always  off,  always  on  or 
automatic  (on  only  when  the  indicator  is  in  use  or  a  key  is  pressed).  See  setting  of 
the parameter  “S2  bL” in section 13.3. 
AUTO POWER OFF 
The auto power off can be set by the user to disabl e the feature or to a pre-set time 
interval. See setting of the parameter  “S3  AoF “ in section 13.3. 
  
						

							 
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OPERATION 
1.3.  ZEROING  
 
·  You  can  press  the  [Zero] key  at  any  time  to  set  the  zero  point  from 
which  all  other  weighing  and  counting  is  measured.  This  will  usually  be 
necessary when the platform is empty. When the zero  point is obtained 
the display will show the zero indicator. 
 
 
·   The indicator has an automatic re-zeroing function  to account for minor 
drifting or accumulation of material on a connected   platform. However 
you may need to press  [Zero] to re-zero the indicator if small amount of 
weight is still shown when the platform is empty. 
  
1.4.   TARING 
1.4.1   MANUAL TARE 
·   Zero  the  indicator  by  pressing  [Zero].  The  zero  indicator  will  be  on. 
Place a container on the pan and its weight will be  displayed. 
·   Press  [Tare]   when  the  reading  is  stable.  The  weight  that  was  di splayed 
is stored as the tare value and it is subtracted fr om the  display, leaving 
zero on the display. The stable and Net indicator w ill be on.  
 
·   As a product is added only the weight of the produc t will be shown. The 
indicator could be tared a second time if another t ype of product was to 
be  added  to  the  first  one.  Again  only  the  weight  th at  is  added  after 
taring will be displayed. 
 
 
     
						

							 
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  NOTE:  
When  the  container  is  removed  a  negative  value  will   be  shown.  If  the 
indicator was tared just before removing the contai ner, this value is the gross 
weight  of  the  container  plus  all  products  which  wer e  removed.  The  zero 
indicator  will  also  be  on  as  the  platform  is  back  t o  the  same  condition  it  was 
when  [Zero]  was pressed last. 
If the value to be tared is very large the scale ma y not allow you to tare the value as 
the  negative  value  will  not  fit  on  the  display  area .      In  this  case  the  scale  will  beep 
twice  when  the    [Tare]  key  is  pressed  and  then  return  to  normal  weighing  without 
setting tare.    
Press  [Tare]  or [Zero]   to  remove  the  tare  value  and  display  zero.  The  Net   indicator 
will disappear. 
 
1.4.2   PRESET TARE (NOT AVAILABLE ON GK-M APPROVED INDICAT ORS)  
 
When the indicator is at zero with no weight on the platform it is possible to enter a 
preset tare.   
 
·   Zero the indicator by pressing  [Zero]. The zero indicator will be on.  
 
·  Enter a value using the numeric keys.  
   ·   Press   [Tare]   to  tare  the  indicator.  The  value  that  was  entered  is  stored 
as  the  tare  value  and  it  is  subtracted  from  the  dis play,  leaving  a 
negative number on the display.  
  
						

							 
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1.5.  WEIGHING 
 
To  determine  the  weight  of  a  sample,  first  tare  an  empty  container  if  used, 
then place the sample in the container.  The displa y will show the weight and 
the unit of weight currently in use.  
 
 
  
To  change  the  weighing  unit  press  the  [Unit]  key.    The  only  alternative 
weighing  unit  is  pounds.  This  can  be  enabled  by  the   user  in  the  parameters 
section. See section 13.3. 
     
1.6.   PARTS COUNTING 
 
The  indicator  can  be  used  to  count  parts  based  on  t he  average  weight  of  a 
sample  weighed.  When  more  parts  are  added  the  total   number  of  parts  are 
displayed. 
·  If  a  container  is  to  be  used,  place  this  container  on  the  platform  before 
entering parts counting and press  [Tare].  
 
 
 
·  Press  [Cnt] to enter the Parts Counting mode.  The display will  show the 
last sample size used.  For example,  “10  Pcs”.   
 
     
						

							 
18                              © Adam Equipment Company 2013 
 
·  Either  place  10  parts  on  the  platform  for  determini ng  the  average  piece 
weight or use a different number of parts. For exam ple, place 20 parts on 
the  platform, press  [CE] to clear the last values and then enter the value 
20 using the numeric keypad.   
 
 
 
·   Press  [Cnt]  to  weigh  the  samples  and  determine  an  average  piec e 
weight.     
·   If  the  parts  are  too  light  to  measure  accurately,  t he  count  may  become 
faulty. It is suggested that the samples to be weig hed should each weigh 
more than the resolution of the indicator.   
·   After  the  sample  has  been  weighed  the  indicator  wil l  count  any  other 
parts  added  by  applying  the  average  piece  weight  to   the  weight  of  the 
parts to be counted.   
 
                     
 
 
·  The   [Tare]  key  works  normally  during  this  time,  so  it  is  possi ble  to  tare 
the  display  with  a  container  on  the  platform  or  to  enter  a  preset  tare 
value as described in section 10.2.2.  
                     
·   During  parts  counting  the  display  can  be  changed  to   show  the  net 
weight,  unit  weight  and  number  of  parts  by  each  tim e  pressing  the 
[Func]  key.