A&D GF-32K User Manual
GX-K series
GX-8K GX-8K2 GX-10K
GX-12K GX-20K GX-30K GX-32K
GF-K series
GF-8K GF-8K2 GF-10K
GF-12K GF-20K GF-30K GF-32K
WM+PD4000775B
This Manual and Marks
All safety messages are identified by the following, “
ANSI Z535.4 (American National Standard Institute: Product Safety Signs and
Labels). The meanings are as follows:
A potentially hazardous situation which, if not avoided,
WARNING
CAUTION
This is a hazard alert mark.
The contents of the product specifications and this manual are subject to
Under the copyright laws, the software (program) described in it are copyrighted,
Microsoft, Windows, Word, Excel is a registered trademark of the Microsoft
This manual is subject to change without notice at any time to improve the
product.
change without any obligation on the part of the manufacturer.
with all rights reserved.
The software may be installed into one computer and may not be installed into
other computers without the prior written consent of A&D Company. Copying
includes translation into another language, reproduction, conversion, photocopy
and offer or loan to another person.
Corporation.
2004 All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, or
translated into any language in any form by any means without the written
permission of A&D Company Ltd.
could result in death or serious injury.
A potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
WARNING
” or “
CAUTION
”, of
Basic Operation
1. Introduction .....................................................................................................................3
1-1. About This Manual......................................................................................................3
1-2. Features ......................................................................................................................3
1-3. Compliance .................................................................................................................4
2. Unpacking And Installing The Balance ..........................................................................6
2-1. Installing The Balance ................................................................................................7
3. Precautions.....................................................................................................................7
3-1. Before Use ..................................................................................................................7
3-2. During Use ..................................................................................................................8
3-3. After Use .....................................................................................................................9
3-4. Power Supply..............................................................................................................9
4. Display Symbols and Key Operation.......................................................................... 10
4-1. Smart Range Function .............................................................................................11
5. Weighing Units............................................................................................................. 12
5-1. Units ......................................................................................................................... 12
5-2. Changing the Units .................................................................................................. 15
6. Weighing...................................................................................................................... 16
6-1. Basic Operation (Gram Mode) ................................................................................ 16
6-2. Counting Mode (PCS) ............................................................................................. 17
6-3. Percent Mode (%).................................................................................................... 19
6-4. Animal Weighing Mode (Hold Function) ................................................................. 19
6-5. Accumulation Function ............................................................................................ 20
Contents
Adapting To The Environment
7. Weighing Speed Adjustment / Self Check Function................................................... 22
7-1. Weighing Speed Adjustment ................................................................................... 22
7-2. Self Check Function With Response Adjustment For The GX-K Series ............... 23
7-3. Self Check Function For GF-K Series .................................................................... 23
8. Calibration.................................................................................................................... 24
8-1. Calibration Group..................................................................................................... 24
8-2. Automatic Self Calibration For The GX-K Series.................................................... 25
8-3. One-Touch Calibration For The GX-K Series ......................................................... 26
8-4. Calibration Using An External Weight..................................................................... 27
8-5. Calibration Test Using An External Weight ............................................................. 28
8-6. Correcting The Internal Mass Value Of The GX-K Series...................................... 29
Selecting Functions
9. Function Switch And Initialization................................................................................ 31
9-1. Permit Or Inhibit ....................................................................................................... 31
9-2. Initializing The Balance............................................................................................ 32
10. Function Table ............................................................................................................. 33
10-2. Details Of The Function Table ................................................................................. 34
10-3. Description Of The Class "Environment, Display".................................................. 37
10-4. Description Of The Item "Data Output Mode"......................................................... 39
10-5. Description Of The Item "Data Format" .................................................................. 40
10-6. Data Format Examples............................................................................................ 43
10-7. Clock And Calendar Function.................................................................................. 45
Instruction manual 1 GX-K series, GF-K series
10-8. Comparator Function............................................................................................... 46
11. ID Number And GLP Report ....................................................................................... 52
11-1. Setting The ID Number............................................................................................ 52
11-2. GLP Report .............................................................................................................. 53
12. Data Memory ............................................................................................................... 56
12-1. Notes on Using Data Memory................................................................................. 56
12-2. Data Memory for Weighing Data............................................................................. 57
12-3. Data Memory for Calibration and Calibration Test.................................................. 60
12-4. Data Memory for Unit Mass in the Counting Mode ................................................ 61
12-5. Data Memory for Comparator Settings................................................................... 64
12-6. Data Memory for Tare Value.................................................................................... 67
12-7. Data Memory: Quick Selection Mode ..................................................................... 70
12-8. Data Memory: Confirmation and Storage Mode..................................................... 71
13. Underhook ...................................................................................................................73
14. Programmable Unit ..................................................................................................... 74
15. Density Measurement ................................................................................................. 75
Interface And Communication
16. Standard Input & Output Interface .............................................................................. 79
16-1. RS-232C And External Contact Input ..................................................................... 79
16-2. Connection to peripheral equipment ....................................................................... 81
17. Commands .................................................................................................................. 83
17-1. Command List.......................................................................................................... 83
17-2. Acknowledge Code And Error Codes ..................................................................... 84
17-3. Control Using CTS And RTS................................................................................... 85
17-4. Settings Related To RS-232C ................................................................................. 85
Maintenance
18. Maintenance ................................................................................................................ 86
18-1. Treatment Of The Balance ...................................................................................... 86
19. Troubleshooting........................................................................................................... 87
19-1. Checking The Balance Performance And Environment......................................... 87
19-2. Error Codes.............................................................................................................. 88
19-3. Other Display ........................................................................................................... 90
19-4. Asking For Repair .................................................................................................... 90
20. Specifications............................................................................................................... 91
20-1. External Dimensions................................................................................................ 93
20-2. Options and Peripheral Instruments ....................................................................... 94
21. Terms/Index .................................................................................................................96
21-1. Terms........................................................................................................................ 96
21-2. Index......................................................................................................................... 98
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1. Introduction
This manual describes how the balances of the GX-K series and GF-K series work and how
to get the most out of them in terms of performance.
Read this manual thoroughly before using the balance and keep it at hand for future
reference.
1-1. About This Manual
This manual consists of the following five parts:
Basic operation ........................ Describes precautions, the balance's construction and basic
operation.
Adapting to the environment .... Describes response (and stability) adjustment to adapt to
the environment where there is vibration or drafts, the way to
maintain weighing precision in a variation of ambient
temperature, calibration and calibration test.
Selecting functions.................... Describes functions of the balance.
Interface and communication ... Describes the RS-232C serial interface and external contact
input. The RS-232C serial interface can communicate with a
computer that requests weighing data and controls the
balance. This RS-232C interface is for use with a computer
or printer. The external contact input commands the balance
re-zeroing and data output.
Maintenance ............................ Describes maintenance, error codes, troubleshooting,
specifications and options.
1-2. Features
Large vacuum fluorescent display (VFD), easy to read.
Dust-tight and protected against water jets, allows washing with water. A waterproof
RS-232C cable (GX-07K) is available as an option.
Built-in calibration weight (hereinafter referred to as the internal mass) of the GX-K series,
allows easy calibration, adjustment and maintenance of the balance.
Automatic self calibration of the GX-K series, using the internal mass, adapting to changes
in temperature.
Automatic self-check function to check itself by one key operation.
The response speed of the GX-K series, adapting to drafts and vibration after self-checking
the balance.
High response speed: The time to read a displayed value after a sample is placed on the
pan has been shortened by using a super hybrid sensor (SHS).
Approximately 1.5 seconds when FAST is selected for the response rate.
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Data memory function stores weighing data, calibration data or unit mass in the counting
mode. It can also store tare values or upper and lower limit values for the comparator
function. Interval memory mode is provided to store the weighing data periodically.
Good laboratory practice (GLP) data can be output using the standard RS-232C serial
interface.
GX-K series has a built-in clock and calendar that can add the time and date to the output data.
Comparator Indicators, displaying the comparison results, H I, OK or LO.
Capacity Indicator, displaying the weight value in percentage relative to the weighing
capacity.
Hold function, provided for weighing a moving object such as an animal.
Multiple weighing units with most of the common units used around the world.
Density mode, for calculating the density of a solid.
Accumulation function, adding the weight values and outputting the sum.
Standard RS-232C serial interface to communicate with a computer.
Windows communication tools software (WinCT) to allow easy communication with Windows.
Reference card, provided for a quick reference to the balance operation.
Underhook for measuring density and weighing magnetic materials.
Comparator output (GX-04K) and analog voltage output (GX-06K) are available as options.
Breeze break (AX-GXK-31), can be used for a precision weighing, is provided for GX-8K,
GX-8K2, GX-10K, GF-8K, GF-8K2 and GF-10K.
1-3. Compliance
1-3-1. Compliance With FCC Rules
Please note that this equipment generates, uses and can radiate radio frequency energy.
This equipment has been tested and has been found to comply with the limits of a Class A
computing device pursuant to Subpart J of Part 15 of FCC rules. These rules are designed
to provide reasonable protection against interference when equipment is operated in a
commercial environment. If this unit is operated in a residential area, it may cause some
interference and under these circumstances the user would be required to take, at his own
expense, whatever measures are necessary to eliminate the interference.
(FCC = Federal Communications Commission in the U.S.A.)
1-3-2. Compliance With EMC Directives
This device features radio interference suppression and safety regulation in
compliance with the following Council Directives
Council directive 89/336/EEC EN61326 EMC directive
Council directive 73/23/EEC EN60950 Safety of Information Technology Equipment
The CE mark is an official mandatory European marking.
Please note that any electronic product must comply with local laws and regulations when
sold or used anywhere outside Europe.
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2. Unpacking And Installing The Balance
The balance is a precision instrument.
Unpack the balance carefully. Keep
the packing material to be used for
transporting the balance in the future.
The packing contents depend on the
balance model. See the illustrations to
confirm that everything is contained.
RS-232C and external
Note
Cover the terminal or
connect the waterproof
RS-232C cable (GX-07K)
to keep waterproof and
dustproof.
Breeze beak provided for
GX-8K, GX-8K2, GX-10K,
GF-8K, GF-8K2 and GF-10K.
clear display cover
Bubble sprit level
Display
Keys
Reference card
terminals
Terminal cove
Grounding
terminal
Position of placing
C adapter labels
Windows communication AC adapter labels
tools software
Pan suppor
Weighing pan
Note
Insert the plug into the
ack firmly. The connection
is tight to keep waterproof
and dustproof.
Note
Please confirm that the AC adapter
type is correct for your local
voltage and receptacle type.
C adapter plug
Handling hole
Leveling foo
Draft gate
Remove the gate
when cleaning.
C adapter jac
C adapter plug
AC Adapte r
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2-1. Installing The Balance
Install the balance as follows:
1 Refer to "3. Precautions" for installing the balance.
2 Install the pan support, weighing pan and draft gate.
Refer to the previous page.
3 Adjust the leveling feet to level the balance.
Confirm it using the bubble spirit level.
4 Confirm that the AC adapter type is correct for the
local voltage and power receptacle type.
5 Connect the AC adapter to the balance firmly. Earth
the balance. Warm up the balance for at least 30
minutes with nothing on the weighing pan.
Bubble sprit level
Good No good
Leveling foo
Grounding
(Earth)
To AC adapter
3. Precautions
To get the optimum performance from the balance and acquire accurate weighing data, note
the following:
3-1. Before Use
The maximum resolution of the precision balance is one million counts. Therefore, there are
tendencies to be influenced by temperature change, air pressure change, vibration and
drafts where the balance is placed.
Install the balance in an environment where the temperature and humidity are not excessive.
The best operating temperature is about 20°C / 68°F at about 50% relative humidity.
Install the balance where it is not exposed to direct sunlight and it is not affected by heaters
or air conditioners.
Install the balance where it is free of dust.
Install the balance away from equipment that produces magnetic fields.
Install the balance in a stable place avoiding vibration and shock. Corners of rooms on the
first floor are best, as they are less prone to vibration.
The weighing table should be solid and free from vibration, drafts and as level as possible.
Level the balance by adjusting the leveling feet and confirm it using the bubble spirit level.
Ensure a stable power source when using the AC adapter.
Connect the AC adapter and warm up the balance for at least 30 minutes.
Calibrate the balance periodically for accurate weighing.
When the balance is installed for the first time or has been moved, warm up the balance for
at least 6 hours to allow the balance to reach equilibrium with the ambient temperature, and
then perform calibration before use.
7
The meaning of IP-65 is "No ingress of dust. Projected against water jets".
If a powerful water jet is used or the balance is immersed in water, it may cause a damage
that is due to ingress of water.
Confirm that "the plug is inserted firmly into the jack" and "the terminal is covered using the
waterproof cover or the waterproof RS-232C cable (GX-07K)", when using the balance.
Use the waterproof option cable GX-07K, when the RS-232C interface is used with IP-65.
AX-KO1710-200, a standard RS-232C cable, is not waterproof or dustproof.
Confirm that the weighing pan does not touch to rim.
Do not install the balance where flammable or corrosive gas is present.
3-2. During Use
Discharge static electricity from the weighing material. When
weighing sample (plastics, insulator, etc.) could have a static
charge, the weighing value is influenced. Ground the balance, and
Eliminate the static electricity by AD-1683 as an accessory.
Or try to keep the ambient humidity above 45%RH at the room.
Or use the metal shield case.
Or wipe a charged material (plastic sample etc.) with the wet cloth.
This balance uses a strong magnet as part of the balance
assembly, so please use caution when weighing magnetic
materials such as iron. If there is a problem, use the underhook on
the bottom of the balance to suspend the material away from the
influence of the magnet.
Eliminate any temperature difference between the sample and the
environment. When a sample is warmer (cooler) than the ambient
temperature, the sample will be lighter (heavier) than the true
weight. This error is due to a rising (falling) draft around the sample.
Make each weighing gently and quickly to avoid errors due to
changes in the environmental conditions.
Do not drop things upon the weighing pan, or place a sample on
the pan that is beyond the balance weighing capacity. Place the
sample in the center of the weighing pan.
Charged
sample
Grounding
Magnetic
material
Draft
20°C
Weighing Pan
Material case
40°C
Shock
Do not use a sharp instrument such as a pencil to press the keys.
Use your finger only.
Press the RE-ZERO key before each weighing to prevent
possible errors.
Calibrate the balance periodically so as to eliminate possible errors.
Take into consideration the affect of air buoyancy on a sample
when more accuracy is required.
It is possible to check the reference card for principle operation.
8
Prevent foreign matter, such as powder, liquid and metal, from invading the area around
the weighing pan.
Use the "breeze break" for a precision weighing.
3-3. After Use
Avoid mechanical shock to the balance.
Do not disassemble the balance. Contact the local A&D dealer if the balance needs service
or repair.
Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that
is moistened with warm water and a mild detergent.
Do not allow the balance to be immersed in water. Even though the balance complies with
IP code, the balance will not withstand being completely immersed in water.
The weighing pan, pan support and draft gate can be removed to clean the balance. Clean
by splashing with water.
Use the waterproof option RS-232C cable GX-07K, when RS-232C interface is used with
IP-65. AX-KO1710-200, a standard RS-232C cable, is not waterproof or dustproof.
3-4. Power Supply
Do not remove the AC adapter while the internal mass is in motion, for example, right
after the AC adapter is connected, or during calibration using the internal mass.
If the AC adapter is removed under the conditions described above, the internal mass
will be left unsecured, that may cause mechanical damage when the balance is moved.
Before removing the AC adapter, press the ON:OFF key and confirm that zero is
displayed.
When the AC adapter is connected, the balance is in the standby mode if the standby
indicator is on. This is a normal state and does not harm the balance. For accurate
weighing, keep the AC adapter connected to the balance and AC power unless the
balance is not to be used for a long period of time.
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4. Display Symbols and Key Operation
Key Operations
Key operation affects how the balance functions. The basic key operations are:
"Press and release the key immediately" or "Press the key" are normal operation.
= normal key operation during measurement
"Press and hold the key".
Display
NET indicator
Processing indicator
Stabilization indicator
Standby indicator
of power supply
The current data number
Processing indicator
Prior notice indicator
of automatic self
calibration
Each key, when pressed or when pressed and held, functions as follows:
Displays memory data information
Displays the weighing data relative to the weighing capacity
in percentage, in weighing mode. (Capacity indicator)
Weighing speed indicator (Response indicator)
nimal mode indicator
Comparator indicators
Units
Interval memor
Standby indicato
Weighing data or
stored data
Blinking indicators
Interval memory,
active indicato
Key
When pressed and released When pressed and held
Turns the display ON and OFF. The standby indicator is displayed when the display
is turned off. The weighing mode is enabled when the display is turned on. This key
is available anytime. Pressing the key during operation will interrupt the operation
and turn the display OFF.
In the weighing mode, turns the
minimum weighing value ON and OFF.
In the counting or percent mode, enters
the sampling mode.
Switches the preset weighing units
stored in the function table. Refer to "5
Weighing Units".
Performs calibration using the internal
mass for GX-K series.
Stores the weighing data in memory or
outputs to a printer or personal computer
depending on the function table settings.
(Factory setting = output)
Sets the display to zero.
Enters the function table mode.
Refer to "10. Function Table".
Performs weighing speed adjustment
(response adjustment) and self check.
Displays other items of the calibration
menu.
No function at the factory setting.
By changing the function table:
Outputs "Title block" and "End block"
for GLP report.
Displays the data memory menu.
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4-1. Smart Range Function
The GX-32K, GF-32K, GX-8K2 and GF-8K2 are equipped with two ranges of "precision
range" of a higher resolution and "standard range" of normal resolution.
The range is switched automatically depending on the value displayed.
Pressing the RE-ZERO key allows weighing in the precision range, regardless of the
tare value. (Smart range function)
The range can be fixed to the standard range, by pressing the SAMPLE key.
Note
Once the range is switched to the standard range, it will not switch to the precision
range automatically even when the displayed value becomes within the precision
range value. Press the RE-ZERO or SAMPLE key to use the precision range again.
Example
GX-32K or GF-32K, precision range = 6.1 kg x 0.1g,
standard range = 31 kg x 1 g.
Step 1 Press the RE-ZERO key.
The balance will start weighing, using the
precision range.
Step 2 Place a container on the weighing pan.
When the weighing value exceeds
the precision range, the range will be
switched to the standard range.
Step 3 Press the RE-ZERO key.
The balance will be switched to the
precision range.
Step 4 Place a sample on the pan.
When the weighing value is within the
precision range, the balance will perform
a weighing using the precision range.
Weighing Pan
Precision range
Tare (Container)
Standard range
Precision range
Sample
Precision range
Precision range/standard range value
GX-32K, GF-32K
GX-8K2, GF-8K2
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(after RE-ZERO key is pressed)
Up to 6100.9 g 6101 to 31008 g
Up to 2100.09 g 2100.1 to 8100.8 g
Precision range
Standard range
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5. Weighing Units
5-1. Units
With the balance, the following weighing units and weighing modes are available :
A unit or mode can be selected and stored in the function table as described in "5-2.Changing
If a weighing mode (or unit of weight) has been turned off, that mode or unit will be missing in
To select a unit or mode for weighing, press the MODE key.
For details about the units and modes, see the table below:
Counting mode
g kg pcs % OZ Lb L OZ OZt
DS MS t TL GN dwt mom ct
Density mode (To use this mode, it must be stored in the function table as described on the nex
To select this mode, press the
Programmable-unit. No unit displayed. Refer to "13. Programmable Units" for details.
the Units".
the sequence. Tael has four varieties, one of which can be selected and installed at the factory.
Name (unit, mode)
Percent mode
page. For details about this mode, refer to "15. Density Measurement".
MODE
key until the processing indictor blinks with
the unit "g" displayed. " " appears only when the density value is displayed.)
Abbreviation
Display
Function table
(Storing mode)
Conversion factor
1 g =
Gram g
Kilogram kg
Counting mode pcs
Percent mode %
Ounce (Avoir) OZ
Pound Lb
Pound/Ounce L OZ l0
Troy Ounce OZt
Metric Carat ct
Momme mom
Pennyweight dwt
Grain (UK) GN
Tael (HK general, Singapore)
Tael (HK jewelry)
Tael (Taiwan)
Tael (China)
Tola (India) t
Messghal MS
TL
pcs
1 g
28.349523125 g
453.59237 g
1 Lb = 16 oz,
1 oz = 28.349523125 g
31.1034768 g
37.7994 g
37.429 g
37.5 g
31.25 g
11.6638038 g
1000 g
-
-
0.2 g
3.75 g
1.55517384 g
0.06479891 g
4.6875 g
Density mode
Programmable-unit (Multi-unit) Mlt
Note The unit Grain is not available for the GX-32K and GF-32K.
12
DS
is used to
show the density
-
-
-
The tables below indicate the weighing capacity and the minimum display for each unit,
depending on the balance model.
Unit
Gram
Kilogram
Ounce (Avoir)
Pound
Pound/Ounce
Troy Ounce
Metric Carat
Momme
Pennyweight
Grain (UK)
Tael (HK general, Singapore)
Tael (HK jewelry)
Tael (Taiwan)
Tael (China)
Tola (India)
Messghal
GX-12K
GF-12K
12000.0 21000.0 31000.0 0.1
12.0000 21.0000 31.0000 0.0001
423.290 740.755 1093.495 0.005
26.4555 46.2970 68.3435 0.0005
26L 7.29 46L 4.75 68L 5.49 0.01
385.810 675.165 996.675 0.005
60000.0 105000.0 155000.0 0.5
3200.00 5600.00 8266.65 0.05
7716.2 13503.3 19933.5 0.1
185188 324080 478404 2
317.465 555.565 820.120 0.005
320.605 561.060 828.235 0.005
320.000 560.000 826.665 0.005
384.000 672.000 992.000 0.005
1028.82 1800.44 2657.80 0.01
2560.00 4480.00 6613.35 0.05
GX-20K
GF-20K
Capacity
GX-30K
GF-30K
Minimum
display
Unit
Gram
Kilogram
Ounce (Avoir)
Pound
Pound/Ounce
Troy Ounce
Metric Carat
Momme
Pennyweight
Grain (UK)
Tael (HK general, Singapore)
Tael (HK jewelry)
Tael (Taiwan)
Tael (China)
Tola (India)
Messghal
GX-8K
GF-8K
Capacity
8100.00 10100.00 0.01
8.10000 10.10000 0.00001
285.7190 356.2670 0.0005
17.85745 22.26665 0.00005
17L 13.719 22L 4.266 0.001
260.4210 324.7225 0.0005
40500.00 50500.00 0.05
2160.000 2693.330 0.005
5208.42 6494.45 0.01
125002.2 155866.8 0.2
214.2890 267.2000 0.0005
216.4095 269.8440 0.0005
216.0000 269.3330 0.0005
259.2000 323.2000 0.0005
694.456 865.926 0.001
1728.000 2154.665 0.005
GX-10K
GF-10K
Minimum
display
13
GX-8K2
GF-8K2
Unit
Gram
Kilogram
Ounce (Avoir)
Pound
Pound/Ounce
Troy Ounce
Metric Carat
Momme
Pennyweight
Grain (UK)
Tael (HK general, Singapore)
Tael (HK jewelry)
Tael (Taiwan)
Tael (China)
Tola (India)
Messghal
Standard range Precision range
Capacity
Minimum
display
Capacity
Minimum
display
8100.00 0.1 2100.00 0.01
8.1000 0.0001 2.10000 0.00001
285.720 0.005 74.0755 0.0005
17.8575 0.0005 4.62970 0.00005
17L 13.72 0.01 4L 10.075 0.001
260.420 0.005 67.5165 0.0005
40500.0 0.5 10500.00 0.05
2160.00 0.05 560.000 0.005
5208.4 0.1 1350.33 0.01
125002 2 32408.0 0.2
214.290 0.005 55.5565 0.0005
216.410 0.005 56.1060 0.0005
216.000 0.005 56.0000 0.0005
259.200 0.005 67.2000 0.0005
694.46 0.01 180.044 0.001
1728.00 0.05 448.000 0.005
GX-32K
GF-32K
Unit
Standard range Precision range
Capacity
Minimum
display
Capacity
Minimum
display
Gram 31000 1 6100.0 0.1
Kilogram 31.000 0.001 6.1000 0.0001
Ounce (Avoir) 1093.50 0.05 215.170 0.005
Pound 68.345 0.005 13.4480 0.0005
Pound/Ounce 68L 5.5 0.1 13L 7.17 0.01
Troy Ounce 996.65 0.05 196.120 0.005
Metric Carat 155000 5 30500.0 0.5
Momme 8266.5 0.5 1626.65 0.05
Pennyweight 19933 1 3922.4 0.1
Grain (UK)
- - - Tael (HK general, Singapore) 820.10 0.05 161.380 0.005
Tael (HK jewelry) 828.25 0.05 162.975 0.005
Tael (Taiwan) 826.65 0.05 162.665 0.005
Tael (China) 992.00 0.05 195.200 0.005
Tola (India) 2657.8 0.1 522.99 0.01
Messghal 6613.5 0.5 1301.35 0.05
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5-2. Changing the Units
The units or modes can be selected and stored in the function table. The sequence of
displaying them can be arranged in the function table, so as to fit the frequency of use.
Select a unit or mode and arrange the sequence of display as follows:
Step 1 Press and hold the SAMPLE key until ba5fnc of the
function table is displayed in the weighing mode, then
release the key.
Step 2 Press the SAMPLE key several times to display Unit .
Step 3 Press the PRINT key to enter the unit selection mode.
Step 4 Specify a unit or mode in the order to be displayed using
the following keys.
SAMPLE key
RE-ZERO key
Step 5 Press the PRINT key to store the units or modes.
The balance displays end and then displays the next
menu item of the function table.
Step 6 Press the
balance returns to the weighing mode with the selected
unit.
......
To display the units sequentially.
.....
To specify a unit or mode. The
stabilization indicator appears
when the displayed unit or mode is
specified.
CAL key to exit the function table. Then the
Displays the units
sequentially.
Press and
hold
To unit
Ente
Selec
Specif
Store
Return
15
6. Weighing
6-1. Basic Operation (Gram Mode)
Step 1 Place a container on the weighing pan, if
necessary.
Press the RE-ZERO key to cancel the
weight (tare). The balance displays 0.0 g .
(The decimal point position depends on the
balance model.)
Step 2 Place a sample on the pan or in the
container.
Step 3 Wait for the stabilization indicator to
be displayed. Read the value.
Step 4 Remove the sample and container from the
weighing pan.
Notes
To use another unit, press the MODE key and select an appropriate unit.
Press the SAMPLE key to turn on or off the minimum weighing value.
The weighing data can be stored in memory. Refer to "12. Data Memory" for details.
Weighing pan
Container
Sample
Remove them
16
6-2. Counting Mode (PCS)
This is the mode to determine the number of objects in a sample based on the standard
sample unit mass. The unit mass means an average mass of the samples. The smaller the
variation in the samples, the more accurate the count will be. The balance is equipped with
the Automatic Counting Accuracy Improvement (ACAI) function to improve the counting
accuracy.
Note
If the sample unit mass variable, the difference from sample to sample, is too large, it
may cause a counting error.
Selecting The Counting Mode
Step 1 Press the MODE key to select the unit pcs (counting mode).
Storing A Sample Unit Mass (Weighing Input Mode)
Step 2 Press the SAMPLE key to enter the sample unit mass storing mode.
Step 3 To select the number of samples using the
SAMPLE key. It may be set to 10, 25, 50 or 100.
Advise
Step 4 Place a container on the weighing pan, if necessary.
Step 5 Place the number of samples specified on the pan.
Step 6 Wait for the stabilization indicator to come on.
Notes
If the balance judges that the mass of the samples is too light and
If the balance judges that the mass of the samples is too light to
The unit mass can be input numerically.
A greater number of samples will yield a more
accurate counting result.
Press the RE-ZERO key to cancel the weight (tare).
The number specified in step 3 appears.
Example
In this example, 25 pieces.
Press the PRINT key to calculate and store the unit
mass. Then the balance displays 25 pcs and is set to
count samples with this unit mass. (The sample unit
mass stored, even if the AC adapter is removed, is
maintained in non-volatile memory.) To improve the
accuracy of the unit mass, go to step 8.
can not be stored as the unit mass, it displays
acquire accurate weighing, it displays an error requiring the
addition of more samples to the specified number.
Example: 150 - pcs appears, requiring 25 more samples. Add 25
samples and press the PRINT key. When the unit mass is
stored correctly, the balance goes to the counting mode.
Refer to "12-4-1. Storing the unit mass".
: 25 0 pcs is displayed if 25 is selected in step 3.
lo .
Weighing pan
Container
25 Samples
Place samples
Counting Operation
Step 7 Place the samples to be counted on the pan.
Advise
GX-K series
17
Multiple unit masses can be stored in the balance. Refer to "12. Data Memory".
........
50 units, GF-K series
Counting result
........
20 units
Counting Mode Using The ACAI Function
A
The ACAI is a function that improves the accuracy of the unit mass automatically by
increasing the number of samples as the counting process.
ACAI: Automatic Counting Accuracy Improvement
Step 8 If a few more samples are added, the
processing indicator turns on. To
prevent an error, add three or more.
The processing indicator does not
turn on if overloaded. Try to add the
same number of samples as
displayed.
Step 9 The balance re-calculates the unit
mass while the processing indicator
is blinking. Do not touch the balance
or samples on the pan until the
processing indicator turns off.
Step 10 Counting accuracy is improved when
the processing indicator turns off.
Each time the above operation is
performed, a more accurate unit
mass will be obtained. There is no
definite upper limit of ACAI range for
the number of samples exceeding
100. Try to add the same number of
samples as displayed.
Step 11 Remove all the samples used in
ACAI and proceed with the counting
operation using the improved unit
mass.
Note ACAI will not function on the unit mass entered using the keys, or digital
input mode.
The mark turns off after the
dd a few more
samples.
The mark turns on at
proper range.
The mark turns on and off
during calculation.
unit mass is improved.
From step 7
Renew
18
6-3. Percent Mode (%)
The percent mode displays the weighting value in percentage compared to a 100%
reference mass and is used for target weighing or checking the sample variance.
Selecting The Percent Mode
Step 1 Press the MODE key to select the unit %
(Percent mode). If the percent mode can not be
selected, refer to "5. Weighing Units".
Storing The 100% Reference Mass
Step 2 Press the SAMPLE key to enter the 100%
reference mass storing mode.
Even in the storing mode, pressing the MODE
key will switch to the next mode.
Step 3 Place a container on the weighing pan, if
necessary. Press the RE-ZERO key to cancel the
weight (tare). The balance displays 100 0 %.
Step 4 Place the sample to be set as the 100%
reference mass on the pan or in the container.
Step 5 Press the PRINT key to store the reference
mass. The balance displays 100.00 %. (The
decimal point position depends on the reference
value. The reference mass stored, even if the
AC adapter is removed, is maintained in
non-volatile memory.)
Note
If the balance judges that the mass of the
sample is too light to be used as a reference, it
displays lo .
Step 6 Remove the sample.
Reading The Percentage
Step 7 Place a sample to be compared to the reference
mass on the pan. The displayed percentage is
based on the 100% reference mass.
Percentage
Pan
Container
100%
mass
Place sample
6-4. Animal Weighing Mode (Hold Function)
This is the mode to weigh a moving object such as an animal, even when the display of the
weighing data fluctuates. The hold function allows the average weight of the animal to be
displayed. To use the hold function, set the function in the function table. Refer to "10.
Function Table" and "10-3. Description Of The Class "Environment, Display" " for details.
19
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6-5. Accumulation Function
The accumulation function sums the weighing data and displays the total value.
To use the accumulation function, set the "Accumulation function (add)" parameter of the
function table as described below.
Note
While the accumulation function is in use, the data memory function is not available.
When using the accumulation function, make sure that the "Data memory (data)"
parameter of the function table is set to "0".
Selecting The Unit
Step 1 Press the MODE key to select a unit to be
used for accumulation.
Note While the accumulation function is in use, unit
selection using the
MODE key is not available.
Setting The Function Table
Step 2 Press and hold the SAMPLE key until ba5fnc
of the function table is displayed, then release
the key.
Step 3 Press the PRINT key.
Step 4 Press the SAMPLE key several times to
display add 0 .
Step 5 Press the RE-ZERO key to display add 1 .
Note To disable the accumulation function, set the
"Accumulation function (add)" parameter to "0".
Step 6 Press the
Step 7 Press the CAL key to return to the weighing
mode.
PRINT key to store the setting.
Press and
hold the key
Press the key
several times
Weighing mode
Selected uni
Weighing mode
20
A
A
A
A
Using The Accumulation Function
Use the following keys to operate the accumulation function.
MODE key
..........
Displays the weighing data and the total value alternately each time it is
pressed. While the accumulation function is in use, the unit can not be
changed.
RE-ZERO key
.....
Sets the display to zero while the weighing data is displayed.
Deletes the total value while the total value is displayed.
PRINT key
..........
Outputs and adds the weighing data while the weighing data is displayed.
Outputs the total value while the total value is displayed.
Step 1 Press the RE-ZERO key to zero the
display.
ccumulation
number
Step 2 Place a sample on the pan. The weight
value is displayed.
Step 3 Press the PRINT key. The weight
value is added to the total and is
output.
The accumulation number at the upper
left of the display increases by one.
ccumulation
number
Step 4 Repeat steps 1 to 3, when
accumulating more data.
Output ST,+012345.6 g
Step 5 Press the MODE key to display
the total value.
ccumulation value
Outputting the value
Step 6 Press the PRINT key to output the
total value.
Step 7 Press the
the total value.
Notes And Displaying Or Outputting An Overloaded Total
The output format depends on the function table setting.
While the accumulation function is in use, the data memory
function is not available.
To disable the accumulation function, set the
"Accumulation function (add)" parameter to "0".
When the "Data number output (d-no)" parameter is set to
"1", the accumulation number will be output before the
weighing data.
21
RE-ZERO key to delete
Output TOTAL(N=--)
OL,+9999999E+19 g
Output TOTAL(N=012)
ST,+012345.6 g
Data number is above 99
ccumulation data is
overloaded.
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7. Weighing Speed Adjustment / Self Check Function
7-1. Weighing Speed Adjustment
This function detects the influence on weighing that is caused
by drafts and/or vibration at the place where the balance is
installed and sets the following three weighing speeds
(response characteristics) automatically.
The function has three rates as follows:
Changing the weighing speed changes the display refresh rate.
Indicator Parameter Weighing Speed Stability Display refresh rate
FAST Cond 0
MID. Cond 1
SLOW Cond 2
Step 1 Press and hold the MODE key until RESPONSE is
displayed. And then, press the MODE key again
quickly.
Step 2 Press the MODE key to select a weighing speed.
Either FAST , MID. or SLOW can be selected.
Step 3 After a few seconds of inactivity the balance displays
Then, it returns to the weighing mode and displays the
updated response indicator. The response indicator
remains displayed for a while.
Note
The weighing speed adjustment can be changed at "Condition (Cond)" of
"Environment, Display (ba5fnc)" in the function table. Refer to "10. Function
Table" for details.
To set a refresh rate of 5 times/second when the response rate is FAST or
10 times/second when the response rate is MID. or SLOW , change the
"Display refresh rate (5pd)" parameter of "Environment, Display (ba5fnc)" in
the function table.
Fast response, Sensitive value
Slow response, Stable value
If the weighing speed is changed as follows:
MID. or SLOW FAST =10 times/second
FAST MID. or SLOW = 5 times/second
Press and hold
Select a parameter
with pressing it.
end .
Weighing speeds
Release
Press again
Release and wai
22
7-2.
This function automatically updates the response adjustment by analyzing the influence of
the environment on the weighing data and also self-checks the balance performance using
the internal mass.
Step 1 Press and hold the MODE key until RESPONSE is
Step 2 The balance automatically starts to check the balance
Caution
Step 3 After automatic adjustment, the balance displays the updated
The response indicator remains displayed for a while.
MID. and OK : The example above indicates that the result of the self check
Note
If improper performance is found in the self check, the balance displays CH no .
Contact the local A&D dealer for repair.
If the automatic response adjustment fails, the balance displays CH ng . Check the
ambient conditions such as breeze and vibration, also check the weighing pan. Then,
perform the adjustment again. To return to the weighing mode, press the CAL key.
Self Check Function With Response Adjustment For The GX-K Series
Press and hold
displayed, and then release the key.
performance and sets the response characteristic.
Do not allow vibration or drafts to affect the
balance during adjustment.
response indicator and returns to the weighing mode.
Example of display
is good and MID. is selected as the response rate..
Release
Result
Advise
If the automatic response adjustment is not helpful, try to refine it using the "7-3. Self Check
Function For GF-K Series".
7-3. Self Check Function For GF-K Series
This function manually updates the response adjustment by analyzing the influence of the
environment on the weighing data.
Step 1 Press and hold the MODE key until RESPONSE is displayed.
And then, press the MODE key again quickly.
Step 2 Press the MODE key to select a weighing speed.
Either FAST , MID. or SLOW can be selected.
Step 3 After a few seconds of inactivity the balance displays
Then, it returns to the weighing mode and displays the
updated response indicator.
The response indicator remains displayed for a while.
Note
If improper performance is found in the self check, the balance displays CH no .
Contact the local A&D dealer for repair.
end .
Press and hold
Release
Result
23
8. Calibration
8-1. Calibration Group
The balance has the following modes as a calibration group.
Calibration
Automatic self calibration (Calibration due to changes in temperature for GX-K series)
Calibration using the internal mass for GX-K series (One-touch calibration)
Calibration using an external weight
Calibration Test
Calibration test using an external weight (Calibration test does not perform calibration)
Correction of the internal mass value
Terms
The following terms are defined as follows:
Internal mass = Built-in calibration weight (GX-K series only)
External weight = A weight that you have. Referred to as a calibration weight when
used for calibration.
Calibration weight = A weight used for calibration
Target weight = An external weight used for calibration test
Caution
The GF-K series does not perform "automatic self calibration" and "one-touch calibration
using the internal mass", as it does not include an internal mass.
Calibration adjusts the balance for accurate weighing.
Besides periodic calibration and before each use, perform calibration when:
The balance is installed for the first time.
The balance has been moved.
The ambient environment has changed.
Do not allow vibration or drafts to affect the balance during calibration.
To output the data for GLP using the RS-232C interface, set "GLP output (info)" of
"Data output (dout)". Refer to "10. Function Table". The time and date can be added to
the GLP report concerning the GX-K series. If the time or date is not correct, adjust them.
Refer to "10-7 Clock and Calendar Function".
Calibration test is available only when "GLP output (info)" of "Data output ( dout )" is set to
"1" or "2",
For GX-K series, the calibration and calibration test data can be stored in memory. To store
them, set "Data memory (data)" to "3". Refer to "12. Data Memory" for details.
For GF-K series, the calibration and calibration test data is not stored in memory.
The value of the internal mass may change due to aging, corrosion or other damage
caused by the operating environment. Check the internal mass periodically. Correct the
internal mass value as necessary.
24
Caution On Using An External Weight
The accuracy of an external weight can influence the accuracy of weighing. Select an
appropriate weight as listed below:
Select a mass for calibration and calibration test from the following table.
Model Usable calibration weight Adjustable range
GX-8K GF-8K
GX-8K2 GF-8K2
GX-10K GF-10K 2kg, 3kg, 4kg, 5kg, 6kg, 7kg, 8kg, 9kg, 10kg
GX-12K GF-12K 5kg, 10kg
2kg, 3kg, 4kg, 5kg, 6kg, 7kg, 8kg
-0.15g ~ +0.15 g
GX-20K GF-20K 10kg, 20kg
GX-30K GF-30K
GX-32K GF-32K
The calibration weight in bold type: factory setting
The calibration weight value can be adjusted within the range above.
20kg, 30kg
-1.5g ~ +1.5 g
Display
This indicator means "In process of measuring calibration data".
Do not allow vibration or drafts to affect the balance while the
indicator is displayed.
8-2. Automatic Self Calibration For The GX-K Series
Automatic self calibration due to changes in temperature
This function automatically calibrates the balance when the balance detects an ambient
temperature change. If GLP output is selected in the function table, the balance outputs the
calibration report or stores the data in memory. Automatic self calibration functions even if
the display is turned off (standby state). Refer to "9-1. Permit Or Inhibit" for the operation.
Caution
If something is on the weighing pan, the balance judges that it is in use and does not
perform automatic self calibration. To maintain the calibrated state, keep the
weighing pan clear while not in use.
GF-K series can not use this calibration mode.
Indicates that the balance detects a change in ambient temperature and
automatic self calibration will start. If the balance is not used for a few
minutes with this indicator blinking, the balance performs automatic self
Indicates that the balance is measuring calibration data. Do not allow
Note The balance can be used while the indicator blinks. But, it is recommended that to
maintain the accuracy, stop using the balance and confirm that there is nothing on the
25
pan and allow the balance to perform self calibration.
calibration. The blinking duration depends on the environment.
vibration or drafts to affect the balance while this indicator is displayed.
After calibration, the balance returns to indicate the previous display.
8-3. One-Touch Calibration For The GX-K Series
Calibration using the internal mass for The GX-K series
This function calibrates the balance using the internal mass. The only operation required is
to press the CAL key.
Caution
GF-K series can not use this calibration mode.
Step 1 Connect the AC adapter and warm up the balance for at least 30 minutes with
nothing on the weighing pan.
Step 2 Press the CAL key.
Step 3 The balance displays Calin and performs calibration using the internal mass. Do
not allow vibration or drafts to affect the balance.
Step 4 The balance displays end after calibration. If the "GLP output (info)" parameter of
the function table is set to "1" or "2", the balance displays glp and outputs the
"calibration report" using the RS-232C interface or stores the data in memory. Refer
to "11-2. GLP Report" and "Data memory (data)" of the function table for details.
Step 5 The balance will automatically return to the weighing mode after calibration.
About the internal mass
The value of the internal mass may change due to aging, corrosion or other damage caused
by the operating environment. Check the internal mass periodically. Correct the internal
mass value as necessary. Refer to "8-6. Correcting the internal mass value".
To maintain the weighing accuracy, perform the calibration using an external weight
periodically, as described below.
26
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8-4. Calibration Using An External Weight
This function calibrates the balance using an external weight.
Step 1 Connect the AC adapter and warm up the balance for at
least 30 minutes with nothing on the weighing pan.
Step 2 Press and hold the CAL key until Calout is
displayed, then release the key.
Step 3 The balance displays
Cal 0 .
If you want to change the calibration weight,
press the SAMPLE key and go to step 4.
If you use the calibration weight value stored in
the balance, go to step 5.
Step 4 Specify the calibration weight value as follows:
SAMPLE key
...
To switch the display condition to: "All of the
segments blinking" (calibration weight
selection mode) or "The last two digits
blinking" (value adjustment mode).
RE-ZERO key
..
To select the calibration weight or adjust the
value. In the value adjustment mode, -15
digits appear after +15 digits.
PRINT key
......
To store the new weight value. Even if the
AC adapter is removed, the data is
maintained in non-volatile memory.
CAL key
.........
To cancel the operation and return to Cal 0 .
Step 5 Confirm that there is nothing on the pan and press the
PRINT key. The balance measures the zero point.
Do not allow vibration or drafts to affect the balance.
The balance displays the calibration weight value.
Step 6 Place the displayed calibration weight on the pan and
press the
PRINT key. The balance measures the
calibration weight. Do not allow vibration or drafts to
affect the balance.
Step 7 The balance displays end .
Remove the weight from the pan.
Step 8 If the "GLP output (info)" parameter, of the function
table, is set to "1" or "2", the balance displays glp and
outputs "Calibration Report" using the RS-232C
interface or stores the data in memory. For details on
the calibration report format, refer to "11-2 GLP Report".
Step 9 The balance will automatically return to the weighing mode.
Step 10 Place the calibration weight on the pan and confirm that the value displayed
is within ±2 digits of the specified value. If it is not within the range, check
the ambient conditions such as breeze and vibration also check the
weighing pan. Then, repeat steps 1 to 10.
27
Press and hold
Release
Selec
Example:
New weight
10001.2 g
Place weigh
Remove
GLP outpu
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8-5. Calibration Test Using An External Weight
This function tests the weighing accuracy using an external
weight and outputs the result. This is available only when
the "GLP output (info)" parameter is set to "1" or "2".
(Calibration test does not perform calibration)
Step 1 Connect the AC adapter and warm up the balance
for at least 30 minutes with nothing on the weighing
pan.
Step 2 Press and hold the CAL key until CCout is
displayed, then release the key.
Step 3 The balance displays CC 0 .
If you want to change the target weight, press
the SAMPLE key and go to step 4.
A list of usable weights is shown on page 25.
If you use the target weight value stored in
the balance, go to step 5.
Step 4 Specify the target weight value as follows:
SAMPLE key
...
To switch the display condition to: "All of the
segments blinking" (target weight selection
mode) or "The last two digits blinking" (value
adjustment mode).
RE-ZERO key
.
To select the target weight or adjust the value.
In the value adjustment mode, -15 digits
appear after +15 digits.
PRINT key
......
To store the new weight value. Even if the AC adapter is
removed, the data is maintained in non-volatile memory.
CAL key
.........
To cancel the operation and return to CC 0 .
Step 5 Confirm that there is nothing on the pan and press
the PRINT key. The balance measures the zero
point and displays the measured value. Do not
allow vibration or drafts to affect the balance. The
balance displays the target weight value.
Step 6 Place the displayed target weight on the pan and
press the PRINT key. The balance measures the
target weight and displays the measured value. Do
not allow vibration or drafts to affect the balance.
Step 7 The balance displays end .
Remove the weight from the pan.
Step 8 The balance displays glp and outputs "calibration
test report" using the RS-232C interface or stores the
calibration test data in memory. Refer to "11-2 GLP
Report" of the function table for details.
Step 9 The balance will automatically return to the weighing mode.
Press and hold
Selec
Example:
New weight
10001.2 g
Remove
GLP outpu
Release
Place weigh
28
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