Adam Equipment: GK Indicator

Adam Equipment
GK INDICATOR
(P.N. 305669264, Revision K1, July 2011)
V1.17 GK‐H scales for Europe

V2.25 EC Approved scale
V3.32 GK scale for Europe
V4.07 GK‐H scale for USA
V5.32 GK scales for USA
© Adam Equipment Company 2011

Easy Reference:
Model name of the indicator:
Serial number of the unit:
Software revision number

(Displayed when power is first turned on):
Date of Purchase:
Name of the supplier and place:

CONTENTS
1. INTRODUCTION ...................................................................................... 3
2. SPECIFICATIONS .................................................................................... 5
3. INSTALLATION ....................................................................................... 7
3.1. UNPACKING ...................................................................................... 7
4. LOCATING ............................................................................................... 7
5. CONNECTION .......................................................................................... 8
6. DISPLAY ................................................................................................ 11
6.1. SYMBOLS AND INDICATORS ........................................................ 11
7. CALIBRATION COUNTER FOR APPROVED INDICATORS .............. 12
8. BATTERY ............................................................................................... 14
9. BACKLIGHT ........................................................................................... 14
10. AUTO POWER OFF ............................................................................ 14
11. OPERATION ....................................................................................... 15
11.1. ZEROING ...................................................................................... 15
11.2. TARING ......................................................................................... 15
11.2.1 MANUAL TARE ....................................................................... 15
11.2.2 PRESET TARE (NOT AVAILABLE ON GK-M APPROVED
INDICATORS) ........................................................................................ 16
11.3. WEIGHING .................................................................................... 17
11.4. PARTS COUNTING ...................................................................... 17
11.5. CHECK-WEIGHING ...................................................................... 20
11.5.1 SETTING UP WHILE WEIGHING ........................................... 21
11.5.2 SETTING UP WHILE PARTS COUNTING OR % WEIGHING 22
11.6. LIMITS STORING AND RECALLING ........................................... 22
11.7. PERCENT WEIGHING .................................................................. 24
11.8. ANIMAL (DYNAMIC) WEIGHING ................................................. 27
11.8.1 ANIMAL WEIGHING PROCEDURE........................................ 28
11.9. ACCUMULATED TOTAL .............................................................. 29
11.9.1 MANUAL ACCUMULATION .................................................... 29
11.9.2 AUTOMATIC ACCUMULATION.............................................. 31
12. RS-232 SPECIFICATION .................................................................... 32
12.1. INPUT COMMANDS FORMAT ..................................................... 37
13. CALIBRATION .................................................................................... 38
14. PARAMETER SETTINGS ................................................................... 39
14.1. CHECK WEIGHING PARAMETERS ............................................ 39
14.2. RS-232 PARAMETERS ................................................................ 42
14.3. INDICATOR PARAMETERS......................................................... 44
14.4. PERCENT WEIGHING AND ANIMAL WEIGHING ....................... 46
15. ERROR MESSAGES .......................................................................... 47
16. SERVICE PARAMETERS ................................................................... 49
16.1. ACCESS TO PARAMETERS........................................................ 49

16.2. USING “2006” TO ENTER THE SERVICE PARAMETERS ........ 50
16.2.1 F1 -CALIBRATION .................................................................. 52
16.2.2 F2–DECIMAL POINT POSITION ............................................ 53
16.2.3 F3 – CAPACITY ...................................................................... 53
16.2.4 F4 –INITIAL ZERO RANGE .................................................... 54
16.2.5 F5 -RE-ZERO RANGE ............................................................ 54
16.2.6 F6 -SUCCESSIVE TARE ........................................................ 55
16.2.7 F7 –ADC COUNTS.................................................................. 55
16.2.8 F8 –ZERO MODE................................................................... 56
16.2.9 F9 –LOW VOLTAGE DETECTION ......................................... 56
16.2.10 F10 –CALIBRATION COUNT (GK-M ONLY) .......................... 57
16.2.11 F10 –AUTO ZERO RANGE (NOT AVAILABLE ON GK-M) .... 57
17. REPLACEMENT PARTS AND ACCESSORIES ................................ 58
18. SERVICE INFORMATION ................................................................... 59
19. APPENDIX .......................................................................................... 61

1. INTRODUCTION
 The GK indicator provides an accurate, fast and versatile general

purpose indicator with parts counting, percent weighing and check‐
weighing functions.
 The GK has LEDs to indicate when a weight is below the low limit,
between the limits or above the high limit next to the display. These
can work in conjunction with an audible alarm for check weighing as
well as LCD showing LO, OK and HI.
 The GK is supplied with a RS‐232 bi‐directional interface and real time

clock (RTC).
 The GK has a sealed keypad with colour coded membrane switches and
a large easy to read liquid crystal type display (LCD) supplied with a
backlight.
 Includes automatic zero tracking, semi‐automatic & pre‐set tare,

accumulation facility that allows the weight to be stored and recalled as
an accumulated total.
 OIML Approved models, GK‐M, do not allow pounds units, have

calibration controlled by jumpers or passcodes and other limitations as
noted in the manual.

2. SPECIFICATIONS
INPUT SECTION
Load Cells Up to 4 , 350 ohm load cells
Minimum 87 ohms, maximum 1120 ohms
Connection 6 wires
2 excitation, 2 sense, 2 signal
Excitation 5Vdc
Sensitivity 0.15uv/d (GK‐M, 1.5uv/e)
Linearity 0.01% FS
Zero Range 0‐ 10mv
Signal range 0‐40mv
ADC Sensitivity Approximately 0.02 µv/ADC count
DIGITAL SECTION
Maximum Range Typically 1kg – 30000kg
Divisions Up to 30,000, (GK –M, 3000 or less)
Weigh units kg / g for Europe, Asia, Africa
kg / g / lb / oz / lb:oz for USA
kg only for GK‐M series
Stabilisation Time 2 Seconds typical
Operating ‐10°C ‐ 40°C

Temperature 14°F ‐ 104°F
Power supply 230 VAC 50/60 Hz
12V 800ma adaptor for USA verisons
Battery Internal rechargeable battery
Calibration Automatic External

Display 6 digits LCD digital displays
with capacity tracker and symbols for units
Indicator Housing ABS Plastic

Overall 260 x 170 x 115mm
Dimensions 10.2” x 6.7” x 4.5”
(wxdxh)
Net Weight 2 kg / 1 lb
Applications Weighing and check weighing
Functions Weighing, Check Weighing, Parts counting, check‐counting, , Animal
Weighing, Accumulating memory,
Interface RS‐232 bi‐directional interface
English, German, French, Spanish selectable text
For approved indicators the input specifications is limited to 1.5 µv per division and
the number of divisions is limited to 3000d. Kilograms only.

3. INSTALLATION
3.1. UNPACKING
This indicator must be connected to a load cell platform and calibrated as necessary
to match the platform and user requirements. See Section 15 for set‐up
information.
The users application and the technical specifications of the platform or load cell will
determine the necessary configuration.
4. LOCATING
 The scales should not be placed in a location that will
reduce the accuracy.
 Avoid extremes of temperature. Do not place in direct

sunlight or near air conditioning vents.
 Avoid unsuitable tables. The table or floor must be rigid

and not vibrate.
 Avoid unstable power sources. Do not use near large

users of electricity such as welding equipment or large
motors.
 Do not place near vibrating machinery.
 Avoid high humidity that might cause condensation.

Avoid direct contact with water. Do not spray or
immerse the scales in water.
 Avoid air movement such as from fans or opening doors.

Do not place near open windows or air‐conditioning
vents.
 Keep the scales clean. Do not stack material on the

scales when they are not in use.

5. CONNECTION
This indicator must be connected to a load cell platform and calibrated as necessary
to match the platform and user requirements.
The GK has a connector configured for a 6 wire load cell. Connect the load
cells/platform to the indicator as shown below. The cable length should be as short
as possible, using a large size wire to minimise errors due to resistance in the leads.
GK‐M model must use the 6 wire connection and has certain limitations for wire size
and length. Refer to the Approval Test Certificate for details.
8 © Adam Equipment Company 2011

Figure 1A shows the connections to a 6 wire load cell. Figure 1B shows a preferred
method to attach a 4 wire load cell, using a 6 conductor cable to go from the
indicator to the platform or load cell where it connects to the 4 wires from the load
cells. The Excitation and sense wires are connected 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 Escape from any setting menus
weighing. The display shows zero.
[Tare] It tares the indicator and stores the current Accept the set values
weight in memory as a tare value, subtracts
the tare value from the weight and shows
the results. This is the net weight.
[Unit] This is used to select the weighing units Allows the weight, unit weight, and
from a preset list of available units. count to be seen when parts
counting or to change from weight
to % in percent weighing

[Low It sets the limits for check weighing and None
Limit] allows setting of either the low limit or the
high limit or both.
&
[High
Limit]
[Lim] It stores and recalls any of 10 preset limits None
[Func] This is used to select percent weighing, RS‐ None

232 parameters, Operation of the bar
graph, RTC settings, User ID and Scale ID.
[Count] Enter Parts Counting None.
[Print] It is used to print the results to a PC or None

printer using the RS‐232 interface. It also
adds the value to the accumulation memory
if the accumulation function is not
automatic.
[1] to [0] Allow entering numerical values where

and [CE] required, setting of limits, tare value, time
and date for example.

6. DISPLAY
6.1. 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 proportion of the

scale capacity being used by the weight on the pan
Low battery
bAt LO or
% 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 ounces and
for the real time clock.

Next to the LCD are a number of LED’s that show when 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 single bar that changes colour as the
weight progresses from Low to OK to High.
7. CALIBRATION COUNTER FOR APPROVED INDICATORS

With approved (GK‐M Model) indicators we have the ability to control access to the
calibration or metrology parameters using a passcode to limit access. The
requirements for doing this stipulate the code should be apparent and recorded in a
suitable location on the indicator.
In this way if the record of the Calibration or Parameter counters do not agree with
recorded settings the responsible person inspecting the indicator can take
appropriate action.

The Counters are incremented any time the calibration section or the Factory
parameters section have been modified.
At power on, the display will show the current software 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 Parameter 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 can no longer hold the values. (1 to
999999). It is expected we will never have more than 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 passcode 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 parameters. (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

8. BATTERY
 The indicators can be operated from the rechargeable battery, if
desired. The battery life is determined by the number and impendence
of the load cells connected. With a single load cell and backlight
disabled the life is approximately 70 hours before needing to be
recharged.
 When the battery needs charging a symbol on the display 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 will automatically switch
off to protect the battery.
 To charge the battery, simply plug into the mains power 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 the status of battery

charging. When the indicator is plugged into the mains power the
internal battery will be charged. If the LED is green the battery is being
charged. If it is red it is nearly discharged and yellow indicates the
battery is increasing the charge level. Continue to charge overnight for
a complete re‐charge.
9. 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 14.3.
10. AUTO POWER OFF

The auto power off can be set by the user to disable the feature or to a pre‐set time
interval. See setting of the parameter “S3 AoF “ in section 14.3.

11. OPERATION
11.1. 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.
11.2. TARING
11.2.1 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 displayed
is stored as the tare value and it is subtracted from the display, leaving
zero on the display. The stable and Net indicator will be on.
 As a product is added only the weight of the product will be shown. The
indicator could be tared a second time if another type of product was to
be added to the first one. Again only the weight that is added after
taring will be displayed.

NOTE:
When the container is removed a negative value will be shown. If the

indicator was tared just before removing the container, this value is the gross
weight of the container plus all products which were removed. The zero
indicator will also be on as the platform is back to the same condition it was
when [Zero] was pressed last.
If the value to be tared is very large the scale may 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.
11.2.2 PRESET TARE (NOT AVAILABLE ON GK‐M APPROVED INDICATORS)
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 display, leaving a
negative number on the display.

11.3. WEIGHING
To determine the weight of a sample, first tare an empty container if used,

then place the sample in the container. The display 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.
11.4. PARTS COUNTING
The indicator can be used to count parts based on the 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”.

 Either place 10 parts on the platform for determining the average piece
weight or use a different number of parts. For example, 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 piece

weight.
 If the parts are too light to measure accurately, the count may become
faulty. It is suggested that the samples to be weighed should each weigh
more than the resolution of the indicator.
 After the sample has been weighed the indicator will 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 possible 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 time pressing the
[Func] key.

 To count a different sample quantity, press the [Count] key. The display
will show the last used sample size. Either use this sample size with a
different part or enter a new sample size as above.
 To return to weighing, press [Unit] when “XX pcs” is displayed.

11.5. CHECK‐WEIGHING
Check‐weighing is a procedure to display an indicator or sound an alarm when

the weight on the platform meets or exceeds the values stored in the
memory. The memory holds values for a high limit and a low limit. Either or
both the limits can be set by the user.
NOTE:
1. The alarm and the LED bargraph can each be set to OFF (See section 13.1).
The LCD display will indicate whenever the weight is within or exceeds the
limits by showing ‘OK’, ‘HI’ or ‘LO’.
Mass on the platform is above the high limit
Mass is between the limits
Mass is below the low limit
2. The limits can be locked by the manager. A Limit Password must be used to
change the limits or recall other limits from memory.
3. If Limit Password is enabled then enter the password which will allow you
to change the limits or the operation of the beeper or bargraph.

11.5.1 SETTING UP WHILE WEIGHING
 Press the [Low Limit] key. It will show the current low limit. The “LO”
symbol will appear on the display.
 Press the [CE] key to clear the old value and then enter the new low
limit using the numeric keys. The decimal point is fixed at the position
that is used for the current weighing unit. When the desired value is
shown press [Tare] to accept the value. If you want to reset the value to
zero, press [CE] to clear the value.
 The limits are displayed in the weighing unit in use.
 To set the high limit press [High Limit], the display will show the high
limit, the “HI” symbol will be on to the left side of the display. Set the
high limit in the same way the low limit was set.
 Pressing the [Tare] key to enter the value will return the indicator to
weighing, with the Check‐weighing function enabled.

11.5.2 SETTING UP WHILE PARTS COUNTING OR % WEIGHING
During parts counting and percent weighing the limits are set in the same way as
above. The limits are displayed in pcs or %.
See Section 10.4 for the description of parts counting and Section 10.7 for percent
weighing.
NOTE:
1. The weight must be greater than 20 scale divisions for the check‐
weighing to operate.
2. To disable the check weighing function, enter zero into both the limits as
described above. When the current limits are shown, press [CE] to clear
the settings, then press [Tare] to store the zero values.
11.6. LIMITS STORING AND RECALLING
The indicator can store up to 10 sets of high and low limits in memory along with the
weighing units in use (including pcs for parts counting and % for percent weighing)
as well as settings for the beeper and bar graph.
During Check weighing the current limits can be stored or previously stored units
can be recalled.

Press the [Lim] key. If you are already in
the check weighing mode the display will ask
if you wish to store the current limits by
showing “StOrE” or recall another set of limits
by showing “rECALL”. The [Lim] key can be
used to toggle between “StOrE” and “rECALL”.
If you want to store the limits, when “StOrE”

is displayed press the [Tare] key. The display
shows “St ”. Enter a number corresponding
to the desired memory location (0 to 9). “St
X” will be displayed for 2 seconds indicating
the location X where the current limits,
weighing units and settings for the beeper
and bar graph are stored. The indicator will
continue to work with the current settings as
active.
If you wish to recall any of the pre‐stored

limits, press [Tare] when “rECALL” is
displayed. The display shows “rEC ”. Enter the
number corresponding to the desired
memory location (0 to 9) to be recalled. “rEC
X” will be displayed for 2 seconds indicating
the values stored in the location “X” is being
recalled. The indicator will change to the
recalled limits, weighing units and settings
for the beeper and bar graph.

NOTE:
1. If the recalled limit is for parts counting, the display will show the last sample
value used, ready for a new sample to be counted.
2. If the recalled unit is a percent weighing limit, the display will show the last
sample value used, ready for a new sample to be weighed.
3. If the memory location was empty the indicator will return to weighing.
11.7. PERCENT WEIGHING
The indicator can be set to perform percent weighing. See Section 13.1.
The indicator will use a mass on the platform as the 100% reference weight. If the
platform is empty (or the indicator is tared) then the user can input a reference
weight using the keypad.
 If using a reference weight (or object) as your 100% reference, add the weight
to the to the platform.
 Press [Func]. The first option is “FUnC 1”, press the [Func] key 3 more times to
display “FUnC 4”.
 Press the [Tare] key. “F4 PCt” will be displayed.

 Press [Tare] again to enter percent weighing. The indicator will set the sample
mass on the platform as 100% reference weight.
NOTE: If there is no reference weight on the pan and percent weighing

function is entered, pressing [Tare] again will return the indicator to normal
weighing.
 Remove the sample weight. Then any other weight placed on the platform
will be displayed as a percentage of the original sample. For example, if
3500g is placed on the platform and percent weighing is selected, the display
will show 100.00%. Remove the 3500g weight and place a 3000g weight. The
display will show 85.7% as 3000g is 85.7% of 3500g.
 The number of decimal points will depend on the weight used. A smaller
weight will show only “100%” while a larger weight might show “100.00%”.
 If the indicator was showing zero weight before entering this function, then
the user must manually enter the weight to be set as 100%. When “F4 PCT” is
displayed, enter the weight to be used for the 100% reference, then press
[Tare] to accept the reference weight. The display will show “0.00 %”.

 If the indicator shows “x x . x x %”, which is the last weight used as a reference,
press [CE] to clear and use the numeric keypad to enter a new value. Press
[Tare] to accept the new reference weight.
 The weight entered must be greater than 50 scale divisions.
 Press [Unit] to return to normal weighing.
NOTE:
The display may jump by large numbers unexpectedly if small weights are used to
set as 100% reference. The indicator checks if the weight is too small and will show
Error 7.

11.8. ANIMAL (DYNAMIC) WEIGHING
The indicator can be set to animal (dynamic) weighing for weighing any items that
are unstable or may move. See Section 13.4.
The indicator uses a special filter to minimise the effects of any movement on the
platform.
 Press [Func]. The first option is “FUnC 1”, press the [Func] key 3 more times to
display “Func 4”.
 Press the [Tare] key. “F4 PCt” will be displayed. Press the [Func] key to
advance to the second function, “F4 AnL”, Animal weighing.
 Press [Tare] to enter the animal weighing function.
 To use the Animal Weighing function it is necessary to set the amount of

filtering required for the animals to be weighed. More active animals will
require a higher level of filtering to give a stable result. The display will show
“Filt x” where x is a value from 1 to 5. The higher the value the greater the
amount of filter will be. To increment the value shown press the [Func] key
then press the [Tare] key to accept it.
 The display will flash “Ani “ 2 times then show the current weight, 0.00. The
indicator is now ready to weigh.

11.8.1 ANIMAL WEIGHING PROCEDURE
 With the platform empty the display will show zero weight.. Place containers
or blankets onto the platform and press the [Tare] key to zero the display.
The indicator may go into the animal weighing procedure when the items are
placed on the platform but will return to showing zero when the [Tare] key is
 Place the animal to be weighed on the platform.
 When a stable reading is found, the display will show this value, and the
display will be locked until the [Unit] key is pressed. The display will show the
“Hold” symbol while the display is locked. Remove the animal, the display will
hold the weight value.
 Press the [Unit] key to unlock the display. The display will flash “Ani” twice,
and be ready for the next animal.
 To weigh a second animal press the [Tare] key if necessary to zero the display,
and place the next animal on the platform. It is also possible to simply place
the next animal on the scale without clearing the last value first. The indicator
will detect the new weight and hold it as before.
 The indicator will remain in the animal weighing mode until the [Zero] key is
pressed. Then it will return to normal weighing.

11.9. ACCUMULATED TOTAL
The indicator can be set to accumulate when a weight is added to the platform
automatically or manually by pressing [Print]. See Section 13.2.
NOTE:
1. The accumulation function is available only during weighing. It is disabled

during parts counting or percent weighing.
2. The accumulated weights will be stored in either kg or lb, depending upon

the weighing unit in use.
3. If at any time the weighing units are changed, the accumulated data will be
lost.
11.9.1 MANUAL ACCUMULATION
When the indicator is set to manual accumulation, the weight displayed will be
stored in the memory when the [Print] key is pressed and the weight is stable.
 Remove the weight and press [Print] when the indicator is at zero. The
display will show "ACC 1" and then the weight in memory for 2 seconds
before returning to normal. The weight can be output to a printer or PC
using the RS‐232 interface.

 When the indicator is at zero place a second weight on the platform.
When stable press [Print] to accumulate the weight. The display will
show "ACC 2" for 2 seconds and then show the new total.
 Continue until all weights have been added. This can continue for up to
99 entries until the capacity of display is exceeded.
 To view the total in memory press the [Print] key when the indicator is
at zero. The display will show the total number of accumulation "ACC
xx" and the total weight before returning to zero.
 To print the total, press [Print] to recall and then immediately press
[Print] the second time to print the results.
 To erase the memory, press [Print] to view the total and then
immediately press [CE] to clear the memory.

11.9.2 AUTOMATIC ACCUMULATION
When the indicator has been set to Automatic Accumulation the value is stored in
memory automatically.
 Place a weight on the platform. The beeper will sound when the display
is stable indicating the value is accepted. Remove the weight.
 The display will show "ACC 1" and then the total in the memory before it
returns to zero. Adding a 2nd weight will repeat the process.
 While the weight is on the platform, press the [Print] key to view the
values‐ first the accumulation number "ACC x" and then the total will be
shown.
NOTE:
1. The indicator will not show the value when a weight is removed.
2. In all cases the display must return to zero or a negative number,

before another sample can be added to the memory.
3. More products can be added and [Print] be pressed again for up to

99 entries until the capacity of display is exceeded.

12. RS‐232 SPECIFICATION
The GK indicator is supplied with bi‐directional RS‐232 interface as standard. The
indicator when connected to a printer or computer outputs the weight with the
selected weighing unit through the RS‐232 interface.
Default Specifications:
RS‐232 output of weighing data
ASCII code
9600 Baud (user selectable)
8 data bits
No Parity
Connector:
9 pin d‐sub miniature socket
Pin 3 Output
Pin 2 Input
Pin 5 Signal Ground
The indicator can be set to print text in English, French, German or Spanish. See the
RS‐232 parameters section for details.

Data Format‐Normal Output:
Only weight value along with the weighing unit is printed. If Percent weighing is
used then % is shown in place of weighing units.
<cr><lf>
<cr><lf>
Date 12/09/2006 <cr><lf>
Time 14:56:27 <cr><lf>
<cr><lf>
Scale ID 123456 <cr><lf> If ID is zero, it is left blank
User ID 234567 <cr><lf>
<cr><lf>
Net Wt 1.234 kg <cr><lf> Net Wt. (or Gross Wt.)
<cr><lf>
<cr><lf>
<cr><lf>
<cr><lf>
Data Format‐Parts Counting Output:

Weight, Unit weight and number of parts are printed.
<cr><lf>
<cr><lf>
Date 12/09/2006 <cr><lf>
Time 14:56:27 <cr><lf>
<cr><lf>
Scale ID 123456 <cr><lf>
<cr><lf>
Net Wt. 1.234 kg <cr><lf> Net Wt. (or Gross Wt.)
Unit Wt. 123 g <cr><lf> g for metric and lb for pounds
PCS 10 pcs <cr><lf>
<cr><lf>
<cr><lf>

Data Format‐ Memory Recall Output:
<cr><lf>
Date 12/09/2006 <cr><lf>
Time 14:56:27 <cr><lf>
<cr><lf>
Scale ID 123456 <cr><lf>
<cr><lf>
------------------<cr><lf>
TOTAL
No. 5 <cr><lf>
Wt. 1.234 kg <cr><lf>
PCS 10 pcs <cr><lf>
<cr><lf>
------------------<cr><lf>
<cr><lf>

Data Format‐ Continuous Output‐ Normal weighing:
Net 1.234 kg <cr><lf> Net Weight (or Gross wt.)

<cr><lf>
<cr><lf>
Data Format- Continuous Output- Parts Counting:
Net 1.234 kg <cr><lf> Net Weight (or Gross wt.)

U.W. 123 g <cr><lf> kg and g for metric and Lb for pounds
PCS 10 pcs <cr><lf>
<cr><lf>
<cr><lf>
NOTE:
1. The accumulated total will not be sent to the RS‐232 when the continuous
print is turned on.
2. The continuous print will only be for the current weight and the display data.
3. In other languages the format is the same but the text will be in the language
selected.
4. When the scale is in the Lb:oz weighing unit the RS‐232 output will only show
pounds. 10lb:8oz will be printed as 10.5 lb.

Description ENGLISH FRENCH GERMAN SPANISH
Net weight Net Wt. Pds Net Net-Gew Pso Net
Weight per unit Unit Wt. Pds unit Gew/Einh Pso/Unid

counted
Number of items Pcs Pcs Stck. Piezas

counted
Number of No. Nb. Anzhl Num.

weighing added
to subtotals
Total weight and Total Total Gesamt Total

count printed
Print date Date Date Datum Fecha
Print time Time Heure Zeit Hora
Scale ID number Scale ID Bal ID Waagen ID Bal ID
User ID Number User ID Util ID Nutzer ID Usuario ID

12.1. INPUT COMMANDS FORMAT
The indicator can be controlled with the following commands. Press the [Enter] key
of the PC after each command.
T<cr><lf> Tares the indicator to display the net weight. This is the same as
pressing [Tare].
Z<cr><lf> Sets the zero point for all subsequent weighing. The display shows
zero.
P<cr><lf> Prints 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 set to automatic.

13. CALIBRATION
 The GK indicator can be calibrated using kilogram weights or using
pounds weights, depending on the weighing unit selected at the time of
calibration.
 To start the calibration, either get into the calibration section through
the Indicator Settings (“FUnC 3”‐ see Section 13.3) or turn the indicator
off and switch on again and then press [Tare] during the self‐test. Enter
code number 0000 and press [Tare]. This will take you directly to the
calibration section.
 The display will show "UnLoAd"
 Remove all weight from the platform and then press the [Tare] key
when the display is stable. After the Zero point is set, the display will
show “Ld xx”. Place the suggested calibration mass on the platform. It is
best to use a weight close to the full capacity of the indicator. If the
mass is different from the displayed value, enter the value of the mass
in whole numbers. The kg or the lb symbol will be on to show the active
unit.
 Press the [Tare] key when the stable indicator is on.
 The indicator will calibrate to the mass. When complete, it will display
“PASS” and then either display “S8 CAL” (if entered the calibration
section through the Indicator Settings as per section 13.3) or return to
normal weighing (if entered directly). Remove the calibration mass.
 If an error message “FAIL H” or “FAIL L” is shown, re‐check the calibration

and repeat. If the error cannot be corrected contact your supplier.

14. PARAMETER SETTINGS
Pressing the [Func] key allows the user to access the parameters for customising the
indicator. The parameters are split into 4 groups‐
1. Check weighing parameters,
2. RS‐232 parameters
3. Indicator parameters
4. Percent and Animal Weighing Functions
 When [Func] is pressed, display will first show “FUnC 1” for Check weighing
parameters.
 Enter [2] for RS‐232 parameters or [3] for Indicator parameters or [4] for
percent weighing and animal weighing, or press the [Func] key to advance
through the groups “FUnC 1”, “FUnC 2” , “FUnC 3” and “FUnC 4”. Press [Tare] to
enter the desired group of parameters.
 Press [Zero] to return to the group “FUnC 1”. If you press [Zero] again, the
indicator will exit the User Parameter section and return to normal weighing.
14.1. CHECK WEIGHING PARAMETERS
 Shortcut to enter this group is to press and hold the [Unit] key for 4 seconds.
The display will go directly to “FUnC 1”.
 Press [Tare] to enter the group.
 Press [Func] to scroll through the parameters and press [Tare] to enter a
parameter setting.

 Press [Func] to view the options for setting.
 Press [Tare] to confirm the change and then advance to the next parameter
by pressing the [Func] key.
This group of parameters‐
‐ enables or disables the percent weighing
‐ sets the lock for re‐setting the check weighing limits
‐ enables or disables the check weighing LED indicator
‐ enables or disables the check weighing alarm
‐ sets the User Password for check weighing
enables or disables the negative check weighing
Parameter Description Options Default

setting
F1 LLk This parameter prevents the With LLK set to Off (oFF), oFF
normal user from changing the user is allowed to
the limits with the help of a change limits at any
Limit Lock. time.
With LLK set to Preset

(PSt), the user is allowed
to use one of the preset
limits only.

F2 LEd This parameter sets the LED bAr - Bar type bAr
indicator to off or on and the Spot - Spot type
LED type (whether LED’s are
Seg - Segment
on in the form of a
continuous bar or a spot LED oFF - Off
or a segment of colour).
F3 bEP This parameter sets the bP oFF - Off bP inL

Beeper to off or on. If set to bP inL - Within limits
on, the beeper can further
bP otL - Outside limits
be set to sound when the (>20d)
weighing result is within or
outside the check‐weighing
limits.
F4 CPS This parameter allows To be entered manually. 0000

setting of a new Check
weighing password, must be
entered twice when asked.
When complete, it will
display “donE”.
F5 nCK This parameter enables on on

negative check weighing oFF
function with ability to do
negative tare.
NOTE:
1. The Check weighing password is separate from the indicator password, see
section 13.3.
2. If the password is other than 0000, user must enter the password to gain
access to “F3 LLk”, “F4 LEd”, “F5 bEP”, “F6 CPS” and “F7 nCK”.

14.2. RS‐232 PARAMETERS
 Shortcut to enter this group is to press and hold the [Print] key for 4 seconds.
The display will go directly to “C1 on”.
 Press [Func] to view the list of parameters.
 Press [Tare] to enter a parameter. Press [Func] to view the options for the
parameter settings.
indicator will exit the User Parameter section and return to weighing.
This group of parameters can be set by the user for setting the language, baud rate,
printing mode, etc. The user can also set a Scale ID number and a User ID number.
Parameter Description Options Default Values or
setting
C1 on Enable or disable the RS‐ Prt on Prt on

232 interface
Prt oFF
C2 bd Baud Rate 600 9600
1200
2400
4800
9600
19200

C3 PrM Printing Mode‐ Manual, mAn, mAn
Continuous or Automatic
Cont (not on EC approved
scales)
AUto
C4 Aon Enable or disable the AC on AC on
Accumulation
AC oFF
C5 Ln Select Language EnGLi (English) EnGLi
FrEnCH (French)
GErmAn (German)
SPAn (Spanish)
C6 UId Set User ID To be entered manually 000000
C7 Sid Set Scale ID To be entered manually 000000
The indicator will perform the following, depending on the Accumulation and Print
Settings:
ACCUMULATION AC on AC Off
SETTINGS
PRINT SETTINGS
AUto Accumulate and print Print automatically,

automatically
Do not accumulate
mAn Accumulate and Print only Print when [Print] key is pressed,
when [Print] key pressed
Do not accumulate.
Print continuously. Print continuously.

Cont
Accumulate when Do not accumulate.
Not available on
approved indicators [Print] key is pressed

14.3. INDICATOR PARAMETERS
 Shortcut to enter this group is to press and hold the [Count] Key for 4
seconds. The display will go directly to “S1 Un ”.
 Press [Func] to view the list of parameters.
 Press [Tare] to enter a parameter. Press [Func] to view the options for the
parameter settings.
indicator will exit the User Parameter section and return to normal weighing.
This group of parameters are used to control the operation of the indicator.

setting
S1 Un Enable or disable weighing kg kg

units, Not all units are g
available for all scales lb
settings. oz
lb:oz
Only USA scales have
imperial unit.
S2 bL Backlight set to always on, EL oFF EL AU

always off or automatic on EL on
whenever a weight is
EL AU
placed or a key is pressed

S3 AoF Auto Off‐ Disable or set SLP 0 SLP 0
time increment to turn off SLP 1
the indicator
SLP 5
SLP 10
S4 dt Set Time and Date format Enter the time 00:00:00
and settings manually
mm:dd:yy
Enter the date
manually
S5 diS Display all weights or only ALL ALL

when stable StAb
S6 Fi Filter setting to slow, SLow nor

normal or fast nor
FASt
S7 SPS Scale Password‐ If it is PI _ _ _ _ 0000
anything other than 0000
then the user must enter
the password to gain
access to any of the
indicator parameter
settings. Must be entered
twice when asked. When
complete, it will display
“donE”.
S8 CAL Calibration Calibrate the indicator -

to a platform. See
Section 10.0

14.4. PERCENT WEIGHING AND ANIMAL WEIGHING
See section 10.7 and 10.8 for details of these special weighing modes.

setting
F4 PCt This parameter allows the None Enabled

user to enter the Percent always
weighing Function. See
Section 10.7.
F4 AnL Enter the Animal Weighing Set the filter value. Enabled
mode of operation, See Always
section 10.8

15. ERROR MESSAGES
During the initial power‐on testing or during operation, the indicator may show an
error message. The meaning of the error messages is described below.
If an error message is shown, repeat the step that caused the message. If the error
message is still shown then contact your dealer for support.
ERROR DESCRIPTION POSSIBLE CAUSES

CODE
Err 1 Time input Error Invalid time entry such as “268970”

for the time format “H-m-S”.
Err 2 Date input Error 34th day of a month is an invalid

entry.
Err 4 Initial Zero is greater than Weight on the platform when turning
allowed (4% of maximum the indicator on.
capacity) when power is
Excessive weight on the platform
turned on or when the
when zeroing the indicator.
[Zero/Enter] key is pressed.
Platform is not installed.
Improper calibration of the indicator.
Damaged load cell.
Damaged Electronics.
Err 6 A/D count is not correct Load cell is damaged.

when turning the indicator
Electronics is damaged.
on.
Err 7 Percent input error Percent function is entered with no

reference mass on the platform.
Err 8 High limit input error Low limit is set first, then the high
limit is set lower than the low limit
and high limit not equal to zero.

Err 9 Low limit input error High limit is set first, then the low
limit is set higher than the high limit
and low limit not equal to zero.
FAIL H or Calibration error Improper calibration (should be

within +10% of the factory
FAIL L
calibration). The old calibration data
will be retained until the calibration
process is complete.

16. SERVICE PARAMETERS
16.1. ACCESS TO PARAMETERS
APPROVED INDICATORS
Access to the indicator parameters and calibration is controlled in all approved

indicators either by limiting access to be after the Calibration Jumper is put on the
PCB, location J1, pins 1 & 2. In this case the display will show the passcode request
screen, “ P - - - - “ . To continue enter a passcode as described below.
Or if the Calibration and Parameters have been enabled (see 15.2.10) the user must
enter the correct password to have access. See Section 6.0.
Entering passcode 0000 will allow calibration as shown in 15.1, entering 1000 will
allow access to a limited set of parameters as described in section 6.2 and entering
the passcode 2006 will allow access to all parameters as shown in section 15.2.
NON‐APPROVED INDICATORS
Non EC Approved indicators will allow entry to the parameters if the Tare key is
pressed during the power on cycle. The passwords work as above.
15.1 USING “0000” TO ENTER THE CALIBRATION PARAMETER
“Pn” When “Pn” is displayed.
Enter “0 0 0 0” and press [Tare]
“UnLoAd ” Empty the platform by removing the load, if

there is any and press [Tare]
“LoAd” “6” “KiLoS” Load the requested calibration weight and press
[Tare]

“SPAn” “PASS” If Calibration is complete, “SPAn PASS” will be
displayed. Remove the calibration weight.
Or, “SPAn” “FAiLEd ” This means calibration has failed. Remove the
calibration weight and repeat the process.
“JP On” Remove the jumper or shorting of the pins

whichever is used. The indicator will return to
normal weighing.
16.2. USING “2006” TO ENTER THE SERVICE PARAMETERS

Non‐Approved indicators:
For the non approved indicator press the [Tare] key during the display counting
when turned on,
Approved Indicators: For the Approved version a jumper can be installed to allow
access or the Calibration and Parameter Counters must be enabled (see 15.2.10).

Apply power to the indicator. If the jumper has been used the display will ask for a
code number, “Pn “ on the Weight Display immediately. Or press the [Tare] key
during the time the calibration counters are being displayed.
Enter the number 2006 when “Pn “ is displayed and then press [Tare].
The displays will show the first parameters, called “F1” “CAL”.
To select another parameter press the [Func] key to advance through the
parameters.
Press the [Tare] key to enter a parameter.
To exit a parameter, press the [Zero] key.
The display will show the parameter number and a name.
When a parameter is entered by pressing the [Tare] key, the displays will guide you
through the parameter selected and the options available.
The parameters available are:
“F1 CAL” To enter the Calibration

“F2 dEC” Decimal Point Position
“F3 CAP” Default Weighing Unit
“F4 Int” Initial Zero Range
“F5 rEZ” Re‐Zero range
“F6 SCS” Successive Tare Enable
“F7 Cnt” Display the A/D counts
“F8 Zem” Zero Mode
“F9 Lvd” Low voltage detection
“F10 Cn” Calibration and Parameter counters

16.2.1 F1 ‐CALIBRATION
To enter the calibration parameter, press the [Tare] key when “F1” is displayed. The
indicator will be calibrated using 2 masses of approximately 1/3Maximum and
Maximum. If the indicator has been calibrated once the values will be stored. If this
is the first time the indictor is calibrated the user must enter the values for the
calibration masses.
It is necessary to set the decimal point location and the capacity before calibration is
possible.
The display will instruct you to remove any weight from the platform, “UnloAd”.
Press [Tare].
The display will tell you to add the first weight to the platform: “Ld 1” “ 10 kg” If
necessary change the value shown to match the weight to be used. Press [CE] to
clear the old value and then enter the new value. All values entered are in whole
numbers only.
Add the weight shown, wait for stability then press the [Tare] key.
The display will tell you to add the second weight to the platform: “Ld 2 “ “ 30 kg”
Add the weight shown, wait for stability then press the [Tare] key.
The display will show “SPAn” “PASS” if the calibration is OK.
Remove the weight.
For the approved indicator the display will then show “JP” “On” indicating the jumper
is still in place if the jumper within the indicator was used to access the parameters..

Switch off the indicator, and switch it on again to continue with the other Service
parameters.
16.2.2 F2–DECIMAL POINT POSITION
To set the value for the decimal point location. The options are 0, 0.0, 0.00,
0.000, 0.0000
To enter this parameter, press the [Tare] key when “F2 dEC” is shown.
The display will show the current setting.
Press the [Func] key to change the value. Select from 0, 0.0, 0.00, 0.000, 0.0000
Press [Tare] to accept the displayed value.
16.2.3 F3 – CAPACITY
To enter this parameter, press the [Tare] key when “F3 CAP” is shown.
The display will show the current capacity.
Enter the numeric values using the keypad. The indicator will check the number of
divisions n = maximum/increment is less than 30,000 divisions. (3000 divisions for
EC approved versions)
On non‐approved versions the display then lets you select the increment, “InC 2”
For example 100kg x 0.01kg the increment is 10grams. but the last digit increments
by 1.

The display will show the current increment value as used with the current decimal
point position.
Press the [Func] key to change the value. Select from 1,2,5,10, 20 or 50
Not all increments may be available for the capacity you selected.
For EC Approved versions the indicator will determine the increment that maintains
the number of divisions to be 3000 or less.
Press [Zero] to return to weighing.
16.2.4 F4 –INITIAL ZERO RANGE
To enter this parameter, press the [Tare] key when “F4 int” is shown.
The display will show the current initial zero range.
Press the [Func] key to change the value and press [Tare] to accept the value.
16.2.5 F5 ‐RE‐ZERO RANGE
To enter this parameter, press the [Tare] key when “F5 rEZ” is shown.
The display will show the current re‐zero range.
Press the [Func] key to change the value.

Press [Tare] to accept the value.
16.2.6 F6 ‐SUCCESSIVE TARE
To enter this parameter, press the [Tare] key when “F6 SCS” is shown.
The display will show if the successive tare is on or off.
16.2.7 F7 –ADC COUNTS
To enter this parameter, press the [Tare] key when “F7 Cnt” is shown.
This parameter allows you to view the A/D counts from the internal A/D converter.
This can be an aid to service.
Press the [Tare] key to return to the PARAMETER menu.
Press the [Zero] key to return to weighing.
Typical value at zero is 30,000‐90,000 (approx.)
Typical value at full capacity is 500,000 (approx.)

16.2.8 F8 –ZERO MODE
To enter this parameter, press the [Tare] key when “F8 ZEm” is shown.
Select the Zero mode desired. In all but special cases Zero Mode 1 is used. The
other 2 zero modes are for unique locations in the world and effect the +/‐ range of
the zero.
16.2.9 F9 –LOW VOLTAGE DETECTION
This parameter allows detection of low voltage when the battery wears down.
To enter this parameter, press the [Tare] key when “F9 LVd” is shown.
The display will show if the LVD Mode is set to on or oFF.

16.2.10 F10 –CALIBRATION COUNT (GK‐M ONLY)
This parameter allows the calibration and parameter counting function to be active.
To enter this parameter, press the [Tare] key when “F10 Cn” is shown.
The display will show if the Calibration Counting Mode is set to on or oFF. If On the
Calibration count and Parameter count will be seen at power on as described in
section 6.0. If set to Off the only method that can be used for access to the
calibration or parameters is to place the jumper on pins 1‐2 of J1, See section 15.2.
16.2.11 F10 –AUTO ZERO RANGE (NOT AVAILABLE ON GK‐M)

This parameter set the range the autozero is active within.
To enter this parameter, press the [Tare] key when “F10 Az” is shown.
The display will show the current setting, 0.5d, 1d, 2d, or 5d.

17. REPLACEMENT PARTS AND ACCESSORIES
If you need to order any spare parts and accessories, contact your supplier or Adam
Equipment. A partial list of such items is as follows‐
 Main Power cord or adaptor for  In use cover

USA versions.  Printer, etc.
 Replacement Battery

18. SERVICE INFORMATION
This manual covers the details of operation. If you have a problem with the indicator
that is not directly addressed by this manual then contact your supplier for
assistance. In order to provide further assistance, the supplier will need the
following information which should be kept ready:
A. Details of your company
‐Name of your company:
‐Contact person’s name:
‐Contact telephone, e‐mail,
fax or any other methods:
B. Details of the unit purchased
(This part of information should always be available for any future correspondence.
We suggest you to fill in this form as soon as the unit is received and keep a print‐out in
your record for ready reference.)
Model name of the indicator: GK_____

Serial number of the unit:
Software revision number
(Displayed when power is first turned on):
Date of Purchase:
Name of the supplier and place:
C. Brief description of the problem
Include any recent history of the unit. For example:
‐Has it been working since it’s delivered
‐Has it been in contact with water
‐Damaged from a fire
‐Electrical Storms in the area
‐Dropped on the floor, etc.

WARRANTY INFORMATION
Adam Equipment offers Limited Warranty (Parts and Labour) for the components failed due to defects
in materials or workmanship. Warranty starts from the date of delivery.
During the warranty period, should any repairs be necessary, the purchaser must inform its supplier or
Adam Equipment Company. The company or its authorised Technician reserves the right to repair or
replace the components at any of its workshops depending on the severity of the problems. However,
any freight involved in sending the faulty units or parts to the service centre should be borne by the
purchaser.
The warranty will cease to operate if the equipment is not returned in the original packaging and with
correct documentation for a claim to be processed. All claims are at the sole discretion of Adam
Equipment.
This warranty does not cover equipment where defects or poor performance is due to misuse,
accidental damage, exposure to radioactive or corrosive materials, negligence, faulty installation,
unauthorised modifications or attempted repair or failure to observe the requirements and
recommendations as given in this User Manual.
Repairs carried out under the warranty does not extend the warranty period. Components removed
during the warranty repairs become the company property.
The statutory right of the purchaser is not affected by this warranty. The terms of this warranty is
governed by the UK law. For complete details on Warranty Information, see the terms and conditions
of sale available on our web‐site.

19. APPENDIX
PARAMETER LAYOUT for GK / GFK SCALES
Key functions while in this section [Tare] enter a parameter or accept the changes
Press the [Func] key to [Func] move to next parameter or option
enter Functions mode. [Zero] return to previous parameter or return to weighing
FUNC 1 FUNC 2 FUNC 3 FUNC 4

Check weighing parameters RS‐232 Parameters Scale Parameters Scale Parameters
F1 LLk oFF C1 on Prt on S1 Un kg F4 Pct Enter 100% reference

Limit Lock Enable RS‐232 Prt oFF Units enable lb Percent Weighing weight
PSt (pre‐set)
C2 bd 600 S2 bL EL oFF F4 Ani FLt 1 Filter setting
Baud Rate To Backlight EL on Animal weighing To
F2 Led bAr (Bar type) 19200 EL AU (Auto) FLt 5
LED display
Spot (spot type) C3 Prm mAn (Manual) S3 AoF SLP 0
Printing Mode cont (continuous) Set Auto off time SLP 1
SPEA (whole segment) AUto (Automatic) (min.) SLP 5
SLP 10
C4 Aon on
F3 bEP bP oFF Enable Accumulation oFF S4 dt Set as described in
Beeper Control
Set time and date manual
bP Int (Inside Limits) C5 Ln English
Language for printing French S5 dIS All
bP otL (Outside Limits) German Display mode StAb (only when
Spanish stable)
F4 CPS Enter using numeric
Check weighing method C6 Uid Enter using numeric S6 Fi SLoW
password User ID keys Set Filter nor (normal)
FASt
F5 NCk On C7 Sid Enter using numeric
Negative Check Scale ID keys S7 SPS Enter using numeric
weighing Off
Scale password keys
S8 CAL Perform calibration

62 Adam Equipment Company 2011
WEEE 2012/19/EU
This device may not be disposed of in domestic waste. This also applies to countries outside the
EU, per their specific requirements. Disposal of batteries (if fitted) must conform to local laws
and restrictions.
Cet appareil ne peut être éliminé avec les déchets ménagers. L’élimination de la batterie doit
être effectuée conformément aux lois et restrictions locales.
Dieses Gerät nicht mit dem Hausmüll entsorgt.
Dispositivo no puede ser desechado junto con los residuos domésticos
Dispositivo non può essere smaltito nei rifiuti domestici.
FCC / IC CLASS A DIGITAL DEVICE EMC VERIFICATION STATEMENT
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules and Canadian ICES‐003/NMB‐003 regulation. These
limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
CALIFORNIA PROPOSITION 65 ‐ MANDATORY STATEMENT
WARNING: This product includes a sealed lead‐acid battery which contains chemicals known to
the State of California to cause cancer and birth defects or other reproductive harm.
Adam Equipment products have been tested with, and are always supplied
with mains power adaptors which meet all legal requirements for the
intended country or region of operation, including electrical safety,
interference and energy efficiency. As we often update adaptor products to
meet changing legislation it is not possible to refer to the exact model in this
manual. Please contact us if you need specifications or safety information for
your particular item. Do not attempt to connect or use an adaptor not
supplied by us.
© Adam Equipment 2016 1

ADAM EQUIPMENT is an ISO 9001:2008 certified global company with more than 40 years’ experience in
the production and sale of electronic weighing equipment.
Adam products are predominantly designed for the Laboratory, Educational, Health and Fitness, Retail and
Industrial Segments. The product range can be described as follows:
‐Analytical and Precision Laboratory Balances

‐Compact and Portable Balances
‐High Capacity Balances
‐Moisture analysers / balances
‐Mechanical Scales
‐Counting Scales
‐Digital Weighing/Check‐weighing Scales
‐High performance Platform Scales
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Adam Equipment: GK Indicator

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Adam Equipment: GK Indicator

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Adam Equipment

V1.17 GK‐H scales for Europe

© Adam Equipment Company 2011

Model name of the indicator:

Serial number of the unit:

Software revision number

Name of the supplier and place:

© Adam Equipment Company 2011

© Adam Equipment Company 2011

© Adam Equipment Company 2011

 The GK indicator provides an accurate, fast and versatile general

 The GK is supplied with a RS‐232 bi‐directional interface and real time

 Includes automatic zero tracking, semi‐automatic & pre‐set tare,

 OIML Approved models, GK‐M, do not allow pounds units, have

© Adam Equipment Company 2011

Operating ‐10°C ‐ 40°C

Calibration Automatic External

Indicator Housing ABS Plastic

© Adam Equipment Company 2011

 Avoid extremes of temperature. Do not place in direct

 Avoid unsuitable tables. The table or floor must be rigid

 Avoid unstable power sources. Do not use near large

 Do not place near vibrating machinery.

 Avoid high humidity that might cause condensation.

 Avoid air movement such as from fans or opening doors.

 Keep the scales clean. Do not stack material on the

© Adam Equipment Company 2011

8 © Adam Equipment Company 2011

KEYS PRIMARY FUNCTION SECONDARY FUNCTION

9 © Adam Equipment Company 2011

[Lim] It stores and recalls any of 10 preset limits None

[Func] This is used to select percent weighing, RS‐ None

[Count] Enter Parts Counting None.

[Print] It is used to print the results to a PC or None

[1] to [0] Allow entering numerical values where

10 © Adam Equipment Company 2011

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 proportion of the

% 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

11 © Adam Equipment Company 2011

Weight LED LCD

Within the limits Green OK

Above the high limit Red HI

7. CALIBRATION COUNTER FOR APPROVED INDICATORS

12 © Adam Equipment Company 2011

Each display is held for 1‐2 seconds.

“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