A&D Weighing GX-203A, GX-303A, GX-403A, GX-603A, GX-1003A Instruction Manual

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GX-A SERIES

GF-A SERIES

ulti-Function Balance

INSTRUCTION MANUAL

ＧＸ－Ａ series

GX-203A/GX-303A/GX-403A/GX-603A/GX-1003A/GX-1603A GX-2002A/GX-3002A/GX-4002A/GX-6002A/GX-10002A GX-6001A/GX-10001A

ＧＦ－Ａ series

GF-203A/GF-303A/GF-403A/GF-603A/GF-1003A/GF-1603A GF-2002A/GF-3002A/GF-4002A/GF-6002A/GF-10002A GF-6001A/GF-10001A

1WMPD4003475

© 2017 A&D Company Ltd. 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.

The contents of this manual and the specifications of the instrument covered by this manual are subject to change for improvement without notice.

Windows, Word and Excel are registered trademarks of the Microsoft Corporation.

Contents

1. Introduction ........................................................................................................................ 4

1-1 Features ....................................................................................................................................................... 4

1-2 About The Models ........................................................................................................................................ 5

1-3 Compliance .................................................................................................................................................. 5

2. Unpacking The Balance ..................................................................................................... 7

2-1 Installing The Balance .................................................................................................................................. 9

2-2 Precautions .................................................................................................................................................. 9

2-3 During Use ................................................................................................................................................. 10

2-4 After Use ..................................................................................................................................................... 11

2-5 Power Supply ............................................................................................................................................. 11

3. Display Symbols And Key Operation................................................................................ 12

4. Weighing Units ................................................................................................................. 14

4-1 Units ........................................................................................................................................................... 14

4-2 Storing Units ............................................................................................................................................... 17

5. Weighing .......................................................................................................................... 19

5-1 Basic Operation .......................................................................................................................................... 19

5-2 Counting Mode（PCS） ............................................................................................................................ 21

5-3 Percent Mode (％) ...................................................................................................................................... 23

5-4 Animal Weighing Mode（Hold Function） ................................................................................................. 24

6. Impact Detection Function ............................................................................................... 25

7. Response Adjustment / Self Check Function ................................................................... 26

7-1 Response Adjustment ................................................................................................................................ 26

7-2 Self-Check-Function / Automatic Setting Of Minimum Weight Value ..................................................... 27

8. Calibration ........................................................................................................................ 28

8-1 Automatic Self Calibration For The GX-A Series ......................................................................................... 29

8-2 One-Touch Calibration For The GX-A Series ............................................................................................. 30

8-3 Calibration Using An External Weight ........................................................................................................ 31

8-4 Calibration Test Using An External Weight ................................................................................................ 32

8-5 Correcting The Internal Mass Value Of The GX-A series .......................................................................... 33

8-6 Correcting The Internal Mass Value Of The GX-A series (Auto) .................................................................... 34

8-7 Correcting The Internal Mass Value Of The GX-A series (Manual) ....................................................................... 35

9. Function Switch And Initialization ..................................................................................... 36

9-1 Permit Or Inhibit ......................................................................................................................................... 36

9-2 Initializing The Balance .............................................................................................................................. 38

10. Function Table ................................................................................................................ 39

10-1 Setting The Function Table ...................................................................................................................... 39

10-2 Details Of The Function Table.................................................................................................................. 41

10-3 Description Of The Class "Environment, Display" ................................................................................... 48

10-4 Clock And Calendar Function .................................................................................................................. 50

10-5 Comparator Function ............................................................................................................................... 52

11. ID Number And GLP Report............................................................................................ 55

11-1 Setting The ID Number ............................................................................................................................ 55

11-2 GLP Report .............................................................................................................................................. 57

12. Data Memory .................................................................................................................. 60

12-1 Data Memory For Weighing Data ............................................................................................................ 60

12-2 Data Memory For Calibration And Calibration Test ................................................................................. 62

13. Statistical Calculation Mode ............................................................................................ 65

13-1 How To Use The Statistic Calculation ...................................................................................................... 65

13-2 Statistical Calculation Mode (Example Of Use) ....................................................................................... 70

14. Flow Measurement ......................................................................................................... 7 2

14-1 How To Use Flow Measurement .............................................................................................................. 73

14-2 Flow Measurement Setting ...................................................................................................................... 75

15. Gross Net Tare Function ................................................................................................. 77

15-1 Preparation Of Gross Net Tare Function ................................................................................................. 77

15-2 Example Of Using The Gross Net Tare Function .................................................................................... 78

16. Minimum Weighing Warning Function ............................................................................ 79

17. Underhook ...................................................................................................................... 81

18. Programmable-Unit ........................................................................................................ 8 2

19. Density Measurement ..................................................................................................... 83

20. Password Lock Function ................................................................................................. 88

20-1 Using Password Function ........................................................................................................................ 88

20-2 Changing Password ................................................................................................................................. 89

20-3 Inputting Password When Turning On The Balance ................................................................................ 91

20-4 Missing Password .................................................................................................................................... 91

21. Maintenance ................................................................................................................... 92

21-1 Treatment Of The Balance ....................................................................................................................... 92

22. Troubleshooting.............................................................................................................. 92

22-1 Checking The Balance Performance And Environment ........................................................................... 92

22-2 Error Codes .............................................................................................................................................. 94

22-3 Other Display ........................................................................................................................................... 97

22-4 Asking For Repair ..................................................................................................................................... 97

23. Specififations .................................................................................................................. 98

23-1 GX-A series 0.001g models ................................................................................................................... 98

23-2 GX-A series 0.01g models ..................................................................................................................... 99

23-3 GX-A series 0.1g models ..................................................................................................................... 100

23-4 GF-A series 0.001g models ................................................................................................................. 101

23-5 GF-A series 0.01g models...................................................................................................................... 102

23-6 GF-A series 0.1g models ..................................................................................................................... 103

24. External Dimention ....................................................................................................... 104

24-1 Options And Perpheral Instruments ....................................................................................................... 106

1. Introduction

This manual describes how the GX-A/GF-A series balance works and how to get the most out of it in terms of performance. Read this manual thoroughly before using the balance and keep it at hand for future reference.

This manual consists of the following five parts:

Basic operation ................................. Describes precautions on handling the balance, balance

construction and basic balance operation.

Adapting to the environment ·········· Describes response adjustment, calibration and calibration test.

Functions ........................................... Describes various functions of the balance.

Interface ···································· Describes the interface which transmits data and controls the

balance. To use it, need a personal computer or an optional printer.

Maintenance ..................................... Describes maintenance, error codes, troubleshooting,

specifications and options.

1-1 Features

□ The balance has a self-check function that inspects the balance itself using electronically controlled

load (ECL) and evaluates performance. Read this manual thoroughly before using the balance and keep it at hand for future reference.

□ The balance can detect impact applied to its mass sensor and display the level of that impact. ISD

(Impact Shock Detection).

□ Continuous change of the balance can be calculated as flow rate, displayed and output. FRD :( Flow

Rate Display).

□ The balance is equipped with a data memory function, which can record weighing value, calibration

result, and multiple unit mass (mass per sample in counting mode) (Up to 200 items are stored for weighing value).

□ The GX-A series has automatic self calibration using the internal mass, adapting to temperature

changes, setting time and interval time.

□ Good laboratory practice (GLP) / Good manufacturing practice (GMP) data can be output using the

RS-232C serial interface.

□ A built-in clock and calendar that can add the time and date to the output data. □ Comparator Indicators, displaying the comparison results with HI OK LO .(Depending on the

setting, 5-step comparison is also possble.)

□ 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.

□ Underhook, for measuring density and weighing magnetic materials. □ Users of the balance can be limited by setting a password (Password lock function). □ The balance is equipped with an RS-232C serial interface and a USB interface to communicate with a

computer. Windows computer using the Windows communication tools software (WinCT) make building a system very easy. The latest Win-CT software can be downloaded from the A&D website.

Windows is the registered trademark of the Microsoft Corporation.

□ A small breeze break is included with the model featuring a minimum display of 0.001g.

1-2 About The Models

There are many models in the GX-A series and GF-A series with differences in the models being the minimum display and weighing capacity. In this manual, they are listed collectively by the minimum display as shown in the table below.

Model Minimum

display

0.001g model 0.001g GX-203A / GX-303A / GX-403A / GX-603A / GX-1003A / GX-1603A

0.01g model 0.01g

0.1g model 0.1g GX-6001A / GX-10001A GF-6001A / GF-10001A

□ For the GX-A series, a weight for sensitivity adjustment is built in. It is possible to use functions such

as calibration and auto calibration using the internal mass.

□ For the GF-A series, sensitivity adjustment weights are not built-in. When calibrating, it is necessary

to prepare an external weight.

GX-2002A / GX-3002A / GX-4002A / GX-6002A / GX-10002A

Internal mass type General type

Applicable model

GF-203A / GF-303A / GF-403A / GF-603A / GF-1003A / GF-1603A GF-2002A / GF-3002A / GF-4002A / GF-6002A / GF-10002A

1-3 Compliance

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.)

Compliance With Directives of CE mark

This device features radio interference suppression, safety regulation and restriction of Hazardous

Substances in compliance with the following Council Directives Council directive 2014/30/EU EN61326 EMC directive Council directive 2014/35/EU EN60950 Safety of Information Technology Equipment Council directive 2011/65/EU EN50581 Restriction of the use of certain Hazardous Substances

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.

2. Unpacking 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. When shipping options are included, optional accessories may be bundled.

GX-A / GF-A 0.001g models

Assemble the breeze break as shown below. Follow the numbered sequence.

④

③

②

①

Bubble spirit level

Display

Keys

Leveling foot

Weighing pan

Pan support receptor

Main unit

Main unit rear side

RS-232Cinterface

USB interface

Antitheft hole

(

Please prepare the security cable by yourself.

AC adapter jack AC adapter plug

)

AC adapter

AC adapter ID label

Note : Please confirm that the AC adapter type is correct for your local voltage and receptacle type.

Main unit cover

USB cable

AX-KO5465-180

GX-A / GF-A 0.01g/0.1g models

Display

Bubble spirit level

Keys

AC adapter

Leveling foot

Weighing pan

Main unit rear side

USB interface

Pan support receptor

Dust plate for 10mg

Main unit

AC adapter jack AC adapter plug

RS-232Cinterface

Antitheft hole * Please prepare the security cable by yourself**

AC adapter ID label

Note : Please confirm that the AC adapter type is correct for your local voltage and receptacle type.

Main unit cover

USB cable

AX-KO5465-180

2-1 Installing The Balance

Install the balance as follows:

1. Refer to “2-2. PRECAUTIONS” for installing the balance.

2. Assemble the balance as shown in the illustration above.

3. Adjust the leveling feet to level the balance. Confirm it using the bubble spirit level.

4. Confirm that the adapter type is correct for the local voltage and power receptacle type.

5. Connect the AC adapter to the balance. Warm up the balance for at least 30 minutes with nothing on the weighing pan.

2-2 Precautions

To get the optimum performance from the balance and acquire accurate weighing data, note the following:

□ Install the balance in an environment where the temperature and humidity are not excessive.

The best operating temperature is about 20℃±2℃ at about 45～60％RH relative humidity.

□ Install the balance where it is free of dust. □ The weighing table should be solid and free from vibration, drafts and as level as possible. □ 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. □ Install the balance where it is not affected by heaters or air conditioners. □ Install the balance where it is not exposed to direct sunlight. □ Install the balance away from equipment which produces magnetic fields. □ Level the balance by adjusting the leveling feet and confirm it using the

bubble spirit level.

□ Warm up the balance for at least 30 minutes. Plug in the AC adapter as

usual.

□ Calibrate the balance before use or after having moved it to another

location. Refer to "8.Calibration".

OK NG

Leveling foot

Caution

Do not install the balance where flammable or corrosive gas is present.

Bubble spirit level

How to adjust the bubble spirit level

bbl

Red circle

Bubble

en the bu

Turn the leveling foot on the front right in the clockwise direction.

OK NG

es is off to the left.

en the bu

position.

Turn both leveling feet on the front in the clockwise

direction at the same time.

es is off to the backward

Bubble

spirit level

Leveling

Down

foot

en the bu

Turn the leveling foot on the front right in the clockwise direction.

es is off to the right.

en the bu

es is off to the forward

position.

Turn both leveling feet on the front in the clockwise

direction at the same time.

Down

Leveling foot

2-3 During Use

To acquire accurate weighing data, note the following:

□ Discharge static electricity from the material to be weighed. When a

sample could have a static charge, the weighing data is influenced. If the ambient humidity becomes 45% or less, insulators such as plastics are liable to become static electricity. Ground the balance and try the following.

Eliminate the static electricity by GXA-25, AD-1683 as an accessory.

Or try to keep highly the ambient humidity Or use a metal shield case. Or wipe a charged plastic sample with the wet cloth.

□ The breeze break (1mg models only) and the clear main unit

cover are provided as accessories. The breeze break components may be charged with static electricity when they are unpacked or when the humidity is low. If the weighing value is unstable or the balance has a problem with repeatability, remove the breeze break. Or wipe the clear plates with a moistened cloth, use an accessory DC static eliminator, GXA-25, AD-1683 or apply an anti-static spray.

□ 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.

The Charged sample

Metal case

Ground

Magnetic material

□ Cancel the temperature difference between a 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.

□ When placing a sample on a weighing pan, do not give a strong

shock or do not exceed the weighing capacity. And place in the center.

□ Do not drop things upon the weighing pan, or place a sample on the

pan that is beyond the balance weighing capacity. Place a sample in the center of the weighing pan.

□ 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.

□ Take into consideration the affect of air buoyancy on a sample when

more accuracy is required.

□ Keep the balance interior free of dust and foreign materials.

Convection

40 C

20 C

2-4 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.

□ Avoid dust and water so that the balance weighs correctly. Protect the internal parts from liquid spills

and excessive dust.

2-5 Power Supply

□ 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.

3.Display Symbols And Key Operation

Display symbols

Battery mark Preset tare mark

Gross mark Net mark

Processing indicator

Stabilization indicator

USB connecting mark

Number of statistical data (Statistical calculation mode)

Displays the weight data relative to the weighing capacity, in percentage, in the

weighing mode (Capacity indicator)

Standby indicator

Blinking display contents

Data number being displayed

Processing indicator

Auto calibration notice

NET G PT

Response indicators

Comparator indicators

Animal weighing mark Shock indicators

Unit display gross zero mark

Interval output mode standby indicator

Weight data

Blinking

Interal output mode active indicator

Key operation

Key operation affects how the balance functions. The basic key operations are:

 “Press and release the key immediately” or “Press the key” = normal key operation during measurement

 “Press and hold the key”

(Press and release the key immediately.)

Press the key.

Key When pressed When pressed and held

Press and hold the key.

Stores the weighing data in memory or

Turns the display ON:OFF. The standby indicator is displayed when the display is turned off. The weighing mode is enabled when the display is turned on.

When password function is enable, password input display will be displayed. Refer to "20-3 Inputting Password Lock When Turning On The Balance"

This ON:OFF key is available anytime. Pressing the ON:OFF key during operation will interrupt 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 sample storing mode.

Switches the weighing units stored in the function table.

Performs calibration of the balance using the internal mass.

outputs to a printer or personal computer depending on the function table settings. (Factory setting = output)

、、、、）

（

Enters the function table mode.

Displays other items of the calibration menu.

Enters mode to change the unit mass registration number in counting mode. By changing the function table: ・ Outputs "Title block" and "End

block" for GLP,GMP report.

Sets the display to zero.

・ Displays the data memory menu.

・ Enters mode for reading density

number in flow measurement.

4. Weighing Units

4-1 Units

With the GX-A /GF-A series balance, the following weighing units and weighing modes are available :

Pct OZ

OZt

Counting mode Percent mode

Density mode (To use this mode, it must be stored in the function table as described on

To select this mode, press the MODE key until the processing indictor

Programmable-unit (No unit displayed. For details, refer to "18. PROGRAMMABLE-UNIT".)

page 15. For details about this mode, refer to "19. DENSITY MEASUREMENT".

blinks with the unit "g" displayed. "DS" appears only when the density value is displayed.)

A unit or mode can be selected and stored in the function table as described on page 15. If a weighing mode (or unit of weight) has been turned off, that mode or unit will be missing in the sequence. Tael has four varieties, one of which can be selected and installed at the factory.

mom

dwt

tol

MES

MLT

To select a unit or mode for weighing, press the MODE key. For details about the units and modes, see the table below:

Name (unit, mode) Abbrev. Display

Function table (Storing mode)

Conversion factor

1 g = Gram g 1 g Counting mode PCS

p C 5

Percent mode % Ounce (Avoir) OZ 28.349523125 g Pound Lb 453.59237 g Pound/Ounce L OZ l0 1Lb=16 oz,

1 oz=28.349523125 g Troy Ounce OZt 31.1034768 g Metric Carat ct 0.2 g Momme mom 3.75 g Pennyweight dwt 1.55517384 g Grain (UK) GN 0.06479891 g Ta el (HK general, Singapore) Tael (HK jewelry) 37.429 g

37.7994 g

Tael (Taiwan) 37.5 g Tael (China) 31.25 g Tola (India) tol 11.6638038 g

to1

Messghal MES 4.6875 g Density mode (See note below)

is used to show the density.

Programmable-unit (Multi-unit) M LT

Note: The blinking processing indicator with “g” indicates that the density mode is selected.

The tables below indicate the weighing capacity and the minimum display for each unit, depending on the balance model.

Unit

Gram Ounce (Avoir) Pound Pound/Ounce 0Lb 7.76oz Troy Ounce Metric Carat Momme Pennyweight Grain (UK) Tael (HK general, Singapore) Tael (HK jewelry) Tael (Taiwan) Tael (China) Tola (India) Messghal

GX-203A GX-303A GX-403A GX-603A GX-1003A GX-1603A

GF-203A GF-303A GF-403A GF-603A GF-1003A GF-1603A

220 320 420 620 1100 1620

7.76 11.28 14.81 21.86 38.80 57.14

0.485 0.705 0.925 1.366 2.425 3.571

7.07 10.28 13.50 19.93 35.36 52.08

1100 1600 2100 3100 5500 8100

58.6 85.3 112.0 165.3 293.3 432.0 141 205 270 398 707 1041

3395 4938 6481 9568 16975 25000

5.82 8.46 11.11 16.40 29.10 42.85

5.87 8.54 11.22 16.56 29.38 43.28

5.86 8.53 11.20 16.53 29.33 43.20

7.04 10.24 13.44 19.84 35.20 51.84

18.8 27.4 36.0 53.1 94.3 138.8

46.9 68.2 89.6 132.2 234.6 345.6

Capacity

0Lb 11.28oz 0Lb 14.81oz 1Lb 5.86oz 2Lb 6.80oz 3Lb 9.14oz

Minimum

0.000005

display

0.001

0.00005

0.01oz

0.00005

0.005

0.0005

0.001

0.02

0.00005

0.0001

0.0005

Unit

Gram 2200 3200 4200 6200 10200 0.01 Ounce (Avoir) 77.6 112.8 148.1 218.6 359.7 0.0005 Pound 4.85 7.05 9.25 13.66 22.48 0.00005 Pound/Ounce 4Lb 13.60oz 7Lb 0.87oz 9Lb 4.15oz 13Lb 10.69oz 22Lb 7.79oz 0.01oz Troy Ounce 70.7 102.8 135.0 199.3 327.9 0.0005 Metric Carat 11000 16000 21000 31000 51000 0.05 Momme 586 853 1120 1653 2720 0.005 Pennyweight 1414 2057 2700 3986 6558 0.01 Grain (UK) 33951 49383 64815 95680 157410 0.2 Tael (HK general, Singapore) Tael (HK jewelry) 58.7 85.4 112.2 165.6 272.5 0.0005 Tael (Taiwan) 58.6 85.3 112.0 165.3 272.0 0.0005 Tael (China) 70.4 102.4 134.4 198.4 326.4 0.0005 Tola (India) 188 274 360 531 874 0.001 Messghal 769 682 896 1322 2176 0.005

GX-2002A GX-3002A GX-4002A GX-6002A GX-10002A

GF-2002A GF-3002A GF-4002A GF-6002A GF-10002A

Capacity

58.2 84.6 111.1 164.0 269.8 0.0005

Minimum

display

Unit

Gram 6200 10200 0.1 Ounce (Avoir) 218 359 0.005 Pound 13.6 22.4 0.0005 Pound/Ounce 13Lb 10.69oz 22Lb 7.79oz 0.01oz Troy Ounce 199 327 0.005 Metric Carat 31000 51000 0.5 Momme 1653 2720 0.05 Pennyweight 3986 6558 0.1 Grain (UK) 95680 157410 2 Tael (HK general, Singapore) Tael (HK jewelry) 165.0 272.0 0.005 Tael (Taiwan) 165.0 272.0 0.005 Tael (China) 198.0 326.0 0.005 Tola (India) 531.0 874.0 0.01 Messghal 1322 2176 0.05

GX-6001A GX-8001A Minimum

GF-6001A GF-8001A

Capacity

164.0 269.0 0.005

display

4-2 Storing Units

The units or modes can be selected and stored in the function table. The sequence of displaying the units or modes can be arranged to fit the frequency of use. The units stored are maintained in non-volatile memory, even if the AC adapter is removed.

Select a unit or mode and arrange the sequence of display as follows:

1 Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

Press and hold

2 Press the SAMPLE key several times to display 1Unit .

3 Press the PRINT key to enter the unit selection mode.

4 Specify a unit or mode in the order to be displayed using

the following keys.

SAMPLE key To sequentially display the units.

RE-ZERO key To specify a unit or mode. The

stabilization indicator appears when the displayed unit or mode is specified. If the key is pressed in units already selected, the stability mark disappears.

5 Press the PRINT key to store the units or modes. The

balance displays end and then displays the next menu of the function table.

Press several times

Select

Displays the units sequentially.

Specify

Store

6 Press the CAL key to exit the function table. Then the balance

returns to the weighing mode with the selected unit.

7 To select other unit or mode for weighing, press the MODE key.

Unit setting example

The example below sets the units in the order with g (gram) as the first unit followed by pc (counting mode).

1 Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

2 Press the SAMPLE key several times to display 1Unit .

3 Press the PRINT key to enter the unit selection mode.

4 Press the RE-ZERO key to specify the unit of g

The stabilization indicator appears when the unit is specified.

5 Press the SAMPLE key to display 1Unit pC5 .

6 Press the RE-ZERO key to specify the unit of pc

The stabilization indicator appears when the unit is specified.

7 Press the PRINT key to store the units.

The balance displays end and then displays the next menu item of the function table.

8 Press the CAL key to exit the function table. Then the

balance returns to the weighing mode with g,the unit selected first.

9 Press the MODE key to switch between g and pc (gpcs).

Displays the units sequentially.

Press and hold

Press several times

Select

Specify

Store

5.Weighing

5-1 Basic Operation

1. Press MODE key, and then select the appropriates units（ In this case, select " ".

2. Place a container on the weighing pan, if necessary.

Press the RE-ZERO key to cancel the weight (tare). The balance displays 0.00 g. (The decimal point position depends on the balance model.)

3. Place a sample on the pan or in the container. Wait for the stabilization indicator

Remove the sample and container from the pan.

Notes

□ Press the SAMPLE key to turn on or off the minimum weighing value. □ The weighing data can be stored in memory. For details, refer to “12. Data

Memory”.

□

When the ON:OFF key is pressed with a container placed on

the weighing pan and weighing is started, the balance automatically cancels the weight (tare) and displays 0.00 g.

to be displayed. Read the value.

, , ）

Weighing pan

Container

Sample

Remove the sample

About the operation at when power is turned on The balance will decide the reference zero point when the power is turned on (AC adapter is connected). Depending on the load condition at that time, it will automatically judge whether to perform zero or tare operation. The condition for determining which is used is "power on zero range", and when power on zero range is exceeded, the tare subtraction operation is performed.

About re-zero operation By pressing the RE-ZERO key, the display can be changed to zero. Re-zero with the RE-ZERO key will automatically determine whether zero or tare operation is performed. The condition for determining which is used is "zero range", and when zero range is exceeded, the tare subtraction operation is performed.

About measurement range For the balance, the range that can be weighed is determined by model. The total amount (net amount + tare quantity) up to the maximum display of each model is displayed, and when the maximum display is exceeded, E is displayed to indicate that the weighing range is exceeded. When in excess in negative, -E is displayed.

Model Power on zero range Zero range -E display range

GX-203A GF-203A GX-303A GF-303A GX-403A GF-403A GX-603A GF-603A GX-1003A GF-1003A GX-1603A GF-1603A GX-2002A GF-2002A GX-3002A GF-3002A GX-4002A GF-4002A GX-6002A GF-6002A GX-10002A GF-10002A GX-6001A GF-6001A GX-10001A GF-10001A

Approx.±100g Approx.±4g Approx.±100g Approx.±6g Approx.±100g Approx.±8g Approx.±100g Approx.±12g Approx.±100g Approx.±20g Approx.±100g Approx.±32g

Approx.±1kg Approx.±40g Approx.±1kg Approx.±60g Approx.±1kg Approx.±80g Approx.±1kg Approx.±120g Approx.±1kg Approx.±200g Approx.±1kg Approx.±120g Approx.±1kg Approx.±200g

Approx.-100g or less Approx.-100g or less Approx.-100g or less Approx.-100g or less Approx.-100g or less Approx.-100g or less

Approx.-1kg or less Approx.-1kg or less Approx.-1kg or less Approx.-1kg or less Approx.-1kg or less Approx.-1kg or less Approx.-1kg or less

5-2 Counting Mode（PCS）

This is the mode to determine the number of objects in a sample based on the standard sample unit mass. Unit mass means the mass of one sample. The smaller the variables in each sample unit mass is, the more accurate the counting will be. This series balance is equipped with the Automatic Counting Accuracy Improvement (ACAI) function to improve the counting accuracy.

Note

※ For counting, use samples that have a unit mass at least ten times greater than that of the minimum

display in grams.

※ If the sample unit mass variable is too large, it may cause a counting error. ※ To improve the counting performance, use the ACAI function frequently or divide the samples into

several groups and count each group.

Selecting the counting mode

1. Press the MODE key to select pC5 （ pC5 = unit）

Storing a sample unit mass

2. Press the SAMPLE key to enter the sample unit mass storing mode. Even in the storing mode, pressing the MODE key will switch to the next mode.

3. To select the number of samples, press the SAMPLE key several times. It may be set to 5, 10, 25, 50 or 100.

Note

A greater number of samples will yield more accurate counting result.

4. Place a container on the weighing pan, if necessary. Press the

RE-ZERO key to cancel the weight (tare). The number specified

in step 3 appears. 25 0 is displayed if 25 is selected in step 3.

5. Place the number of samples specified on the pan. In this example, 25

pieces.

6. When PRINT key pressed, unit mass is stored and changes the count

display. (eg: when the number is 25,

Note

※ If the balance judges that the mass of the samples is TOO light

to acquire accurate weighing, it displays an error requiring the addition of more samples to the specified number and press the

PRINT key. When the unit mass is stored correctly, the balance

proceeds to the counting mode.

※ If the balance judges that the mass of the samples is too light and is

not adequate to be used as the unit mass, it displays lo .

25 pC5 is displayed.

Weighing pan

Container

Sample (25 pieces)

place

※ Registered unit mass is remembered even when the power is turned off.

Number mode（counting）

7. Counting is possible.

(The couting result)

Counting Mode Using The ACAI Function

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

After registering unit mass of "Step 6", proceed to the following "Step 8".

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.

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.

10. Counting accuracy is improved when the processing indicator turns off.

11. 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.

12. 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.

Processing mark

Storing the unit mass

By using the data memory function, 50 instances of storing a sample unit mass can be stored.

1. Set the function setting item "Data memory function ( ) " to "Stores unit mass in counting ( ) " .Refer to "10.Function Ta bl e ".

2. The displayed "P＊＊" is the selected unit mass registration number.

3. Press and hold the PRINT key to switch to the mode to change the unit mass registration number.

RE-ZEROkey Changes the registration number(+) MODEkey Changes the registration number (-)

PRINTkey Decides on the displayed registration number.

CALkey Cancel the displayed registration number.

4. Multiple unit masses can be stored by registering them with different unit mass registration numbers.

Note

※ Unit weight can be read by ″ＵＮ:ｍｍ″command. （mm corresponds to P01 to P50 with 01 to 50.） ※ The read unit mass can output by ″？UW ″command and can be changed by ″？UW ″ command.

Press and Hold

Note

※ ACAI cannot be used for the read unit mass.

5-3 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

1. Press the MODE key to select the unit % (Percent mode).

Storing The 100% Reference Mass

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.

3. Place a container on the weighing pan, if necessary. Press the key to cancel the weight (tare). The balance displays 100 0 %.

4. Place the sample to be set as the 100% reference mass on the pan or in the

container.

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

RE-ZERO

Weighing pan

Container

Sample (100%)

□ If the balance judges that the mass of the sample is too light to be used

as a reference, it displays

□ The displayed percentage is based on the 100% reference mass.

100% mass Decimal point position

Minimum display

0.001gmodel

Minimum display 0.01g

model

Minimum display 0.1g

model

□ Registered values are stored even when the power is turned off.

6. Remove the sample

lo .

0.100g ~ 0.999g 1%

1.000g ~ 9.999g 0.1%

10.000g ~ 0.01%

1.00g ~ 9.99g 1%

10.00g ~ 99.99g 0.1%

100.00g ~ 0.01%

1.0g ~ 9.9g 1%

10.0g ~ 99.9g 0.1%

100.0g ~ 0.01%

place

Display % of weighing object

Reading the percentage

7. Please a sample to be compared to the reference mass on the pan. The displayed percentage is based on the 100% reference mass.

5-4 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.

6. Impact Detection Function

The GX-A / GF-A series has a function to detect impact to the mass sensor section and to display the impact level.

By lowering the impact level at the time of loading, it is possible not only to alleviate variation in the weighing value but also to reduce the risk of failure of the mass sensor section.

Especially when incorporating the balance in a production line, etc. and weighing by means such as an automated system, impact to the sensor may be applied greater than expected. When designing automatic systems and the like, it is recommended that you minimize the impact level

as much as possible while checking the shock indicator.

Impact level display is from level 0 to level 4, 5level.

Impact level Shock indicator Buzzer Contents

Safe

SHOCK

One

beep

Two

beep

Caution

Caution：Consider impact mitigation

Warning：Do not apply greater impact

Danger：Sensor may be damaged

Note □ Impact on the weighing sensor may be applied to the weighing pan at time of loading, or it may be

applied from the table on which the balance is installed. The impact detection function also works for impact applied from the table.

7. Response Adjustment / Self Check Function

This function stabilizes the weight value, reducing the influence on weighing that is caused by drafts and/or vibration at the place where the balance is installed. This function adjusts by automatically analyzing the environment or by hand-operation. The function has three stages as follows : Changing the weighing speed changes the display refresh rate.

Display

FAST MID. SLOW

Function

setting

Cond 0 Cond 1 Cond 2

Response characteristic

Fast response, Sensitive value

Slow response, Stable value

7-1 Response Adjustment

Response adjustment can be changed by the following method.

Response indicator

1. Press and hold the then release the key.

2. Press the Either FAST , MID or SLOW can be selected.

3. After a few seconds of inactivity the balance displays end . Then, it

returns to the weighing mode and displays the updated response indicator. The response indicator remains displayed for a while.

Note

The value set for response adjustment can be changed by

"Condition Cond " of "Environment display" in the Function Ta bl e .

For the setting method, refer to "10.Function Table".

MODE key to select a weighing speed.

MODE key until RESPONSE is displayed, and

Press and Hold

Release and press again

Each pressing switches the indicators

After a while

7-2 Self-Check-Function / Automatic Setting Of Minimum

Weight Value

With the self-diagnosis function confirmation and display of repeatability can be performed in addition to failure diagnosis, and whether or not the balance's performance is being exhibited can be easily checked.

It is also possible to display and register the reference value of the minimum weighing value using

repeatability data.

For details of the minimum weighing value, refer to the technical information on our website.

（http://www.aandd.co.jp/adhome/products/balance/tecdoc_balance.html）

1. Press and hold the MODE key while weighing is displayed.

2. Release the key when RESPONSE display blinks.

3. displays and the self-diagnosis function is started.

4. When the diagnosis is completed, the diagnosis result is displayed. When there are no problems in the balance, the

display blinks . If is displayed blinking, there is a possibility that a fatal fault has occurred in the balance. Please request repair.

SAMPLE key It is possible to switch the display of

diagnostic result, repeatability, minimum weight value.

PRINT key The displayed contents are output.

5. Press the CAL key to display and move to the display for minimum weighing value registration.

6. When registering as minimum weighing value of minimum weight value display warning function performs the following.

Press the RE-ZERO key to change No/Go and display . Press the PRINT key.

If not registered, press the PRINT key while displaying ,

or press CAL. Return to the weighing display.

Output

No change

No/Go Switch setting

* For minimum weighing warning function, refer to " 16.Minimum

Weighting Warning Function".

Note

For the minimum weighing warning function, settings can only be made when logged in as administrator (AdMin) if the password lock function is turned on.

8.Calibration

Since the balance's resolution is high, weighing values may change due to gravity and daily environmental changes. It is necessary to perform calibration (sensitivity adjustment) with the weight in order to keep the weighing values from changing even if gravity or the environment changes.

It is recommended that you calibrate if the balance is installed for the first time or relocated, or when the weighing values change significantly in daily inspection, etc.

Adjustment means to adjust the weighing value of the balance using the reference weight or internal mass. Calibration is to weigh with the reference weight and compare how much the result deviates from the reference value. (Adjustment is not performed in calibration.)

Calibration (Sensitivity adjustment)

Auto calibration ------------------------------------------ Automatically adjust the balance using the internal mass

depending on the temperature change of the operating environment or the set time and interval time.（GX-A series）

Calibration test using the internal mass ---------- Using the internal mass, adjust the balance with a single

touch.

Calibration test using an external weight --------- Using an external mass, adjust the balance with an

external mass.

Calibration test（Sensitivity calibration）

Calibration test with your own weight -------------- Output the result of checking the accuracy of weighing

using your own weight.

*No adjustment is made.

Caution

□ Do not allow vibration or drafts to affect the balance during calibration. □ To output the data for GLP/GMP using the RS-232C interface, set "GLP/GMP output (info)" of "Data

output (dout)". Refer to "10. Function Table". The time and date can be added to the GLP/GMP report. If the time or date is not correct, adjust them. Refer to "10-4 Clock and Calendar Function".

□ The calibration and calibration test data can be stored in memory. To store them, set "Data memory

(data)" .

□ The accuracy of the weight used in calibration affects the accuracy of the balance after calibration. □ Select the mass to be used for calibration and calibration tests from the table below.

Model Usable calibration weight

GX-203A , GF-203A 50g, 100g, 200g 200g GX-303A, GF-303A 50g, 100g ~ 300g (100g interval) 200g GX-403A, GF-403A 50g, 100g ~ 400g (100g interval) 400g GX-603A, GF-603A 50g, 100g ~ 600g (100g interval) 500g

GX-1003A, GF-1003A 50g, 100g ~ 1000g (100g interval) 1000g GX-1603A, GF-1603A 50g, 100g ~ 1600g (100g interval) 1000g GX-2002A, GF-2002A 500g, 1000g, 2000g 2000g

GX-3002A, GF-3002A 500g, 1000g ~ 3000g (1000g interval) 2000g GX-4002A, GF-4002A 500g, 1000g ~ 4000g (1000g interval) 4000g GX-6002A, GF-6002A 500g, 1000g ~ 6000g (1000g interval) 5000g GX-10002A, GF-10002A 500g, 1000g ~ 10000g (1000g interval) 10000g

Factory

setting

Adjustable

range

-9.999g ~ +9.999g

-99.99g ~ +99.99g

GX-6001A, GF-6001A 500g, 1000g ~ 6000g (1000g interval) 5000g GX-10001A, GF-10001A 500g, 1000g ~ 10000g (1000g interval) 10000g

-999.9g ~ +999.9g

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.

8-1 Automatic Self Calibration For The GX-A Series

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. In the auto calibration mode, either the temperature change, the setting time, or the interval time can be set with the function setting . For the setting time, the three function setting of , and can be set.

Interval time can be set from 0.5h to 24h with function setting .

Caution

If something is on the weighing pan, the balance judges that it is in use and does not perform automatic self

calibration.

The criteria that the balance judges is in use are as follows.

0.001g models 0.01g models 0.1g models Lower than 2g Lower than 20g Lower than 20g

To maintain the calibrated state, keep the weighing pan clear while not in use.

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 calibration. The blinking duration depends on the environment.

Indicates that the balance is measuring calibration data. Do not allow vibration or drafts to affect the balance while this indicator is displayed. After calibration, the balance returns to indicate the previous display.

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 pan and allow the balance to perform self calibration.

8-2 One-Touch Calibration For The GX-A Series

This function calibrates the balance using the internal mass.

Step1 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.The balance displays Calin and performs calibration using the internal

mass. Do not allow vibration or drafts to affect the balance.

Step 3 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 "11-3. GLP Report" and "Data memory (data)" of the function table for details.

Step 4 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 "8-5. Correcting the internal mass value".

To maintain the weighing accuracy, perform the calibration using an external weight periodically, as

described below.

8-3 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.

Step3 If you want to change the setting of the external

weight value, press the SAMPLE key and go to step 4.

If you don't change the setting of the external

weight value, go to step 5.

Step4 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 four digits blinking" (value adjustment mode).

RE-ZERO key

......

To select the calibration weight or adjust the

value.

MODE key............ In the value adjustment mode, -9999 digits

appear after +9999 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 .

(Displayed only on GX-A series)

Press

eg.updated weight value

1000.12g

Press and Hold

Release

Select weight

Step5 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.

Step6 Place the displayed calibration weight on the pan and press the

key. The balance measures the calibration weight. Do

not allow vibration or drafts to affect the balance.

Step7 Remove the weight from the pan.

Step8 After calibration, if GLP output is to be set, "Calibration report" is

output or stored in data memory.

Step9 The balance will automatically return to the weighing mode. Step10 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.

External weight

GLP output

8-4 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

parameter is set to " calibration)

doutinfo1. (Calibration test does not perform

Press and Hold

Step1 Connect the AC adapter and warm up the balance

(Displayed only on GX-A series)

for at least 30 minutes with nothing on the weighing pan.

Step2 Press and hold the

CAL key until CCout is

displayed

Step3 Release the key. Step4 If you want to change the setting of the external

weight value, press the SAMPLE key and go to step 5.

If you don't change the setting of the external

weight value, go to step 6.

Step5 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 four digits blinking" (value adjustment mode).

RE-ZERO key To select the calibration weight or adjust the value. In

the value adjustment mode, -9999 digits appear after +9999 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

Release

Press

Select weight

eg.updated weight value

1000.12g

Step6 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.

Step7 The balance displays the zero point measured value several seconds.

Replace the external weight. Step8 The balance outputs or stores "calibration test data". Step9 The balance will automatically return to the weighing mode.

GLP output

External weight

8-5 Correcting The Internal Mass Value Of The GX-A series

Internal mass value can be corrected with function setting . There are two correction methods, as follows.

Auto ········ This is a method of correcting the internal mass weight value based on an external weight. Manual ···· This is a method of correcting by digitally inputting a correction reference value (internal weight

conversion value).

Note □ Correction of internal mass value can not be executed at factory setting. Refer to "9. Function Switch And Initialization" or the following setting method, and enable changing of the function setting and correction the internal mass value.

Setting procedure

1. Press the ON:OFF key to turn off the display.

2. Hold down the PRINT and SAMPLE keys, and press the ON:OFF key to

display p5 .

3. Press the PRINT key and set the "internal mass correction switch" and

"function setting switch" to "1 " with the next key.

SAMPLE key Select the switch (blinking digit).

RE-ZERO key Change the value of the blinking switch.

4. Press the PRINT key to register and display the weighing display.

Internal setting switch (Factory setting 1 ） Internal mass correcting switch (Factory setting

With pressing and holding

)

8-6 Correcting The Internal Mass Value Of The GX-A series (Auto)

Calibrate referring to "8-3. Calibration Using An External weight".

This is method of correcting the internal mass weight value based on an external weight. After calibration with the external mass, the balance automatically loads and unloads the

internal mass and corrects the internal mass value. The available masses are as shown in the table below. The corrected mass value is maintained in non-volatile memory even if the AC adapter is removed.

Model Available mass

GX-203A, GF-203A 50g, 100g, 200g 200g GX-303A, GF-303A 50g, 100g ~ 300g (100g interval) 200g

GX-403A, GF-403A 50g, 100g ~ 400g (100g interval) 400g GX-603A, GF-603A 50g, 100g ~ 600g (100g interval) 500g GX-1003A, GF-1003A 50g, 100g ~ 1000g (100g interval) 1000g

GX-1603A, GF-1603A 50g, 100g ~ 1600g (100g interval) 1000g GX-2002A, GF-2002A 500g, 1000g, 2000g 2000g

GX-3002A, GF-3002A 500g, 1000g ~ 3000g (1000g interval) 2000g

Factory

setting

Adjustable

range

-9.999g ~ +9.999g

Place

Replace

During calibration with external mass

GX-4002A, GF-4002A 500g, 1000g ~ 4000g (1000g interval) 4000g

GX-6002A, GF-6002A 500g, 1000g ~ 6000g (1000g interval) 5000g

GX-10002A, GF-10002A 500g, 1000g ~ 10000g (1000g interval) 10000g

GX-6001A, GF-6001A 500g, 1000g ~ 6000g (1000g interval) 5000g

GX-10001A, GF-10001A 500g, 1000g ~ 10000g (1000g interval) 10000g

-99.99g ~ +99.99g

-999.9g ~ +999.9g

Setting procedure

1. The internal mass value cannot be corrected at factory settings. Refer to "9. Function Switch and Initialization" and enable changing of the function setting and correction the internal mass value.

2. In weighing mode, press and hold the SAMPLE key to

display .

3. Press the SAMPLE key several times until appears.

4. If does not display, perform Step 1.

5. Press the PRINT key to display auto .

6. When preparation is completed, press the PRINT key.

7. is displayed and the internal mass value is automatically corrected.

Press and hold

Press several times

8. When adjustment of the internal mass value is completed, is displayed and calibration is performed automatically with the adjusted internal weight.

9. is displayed and you are returned to the weighing mode.

10. Place the external weight used for calibration on the balance check whether the balance was corrected. If it is not corrected properly, return to Step 2.

8-7 Correcting The Internal Mass Value Of The GX-A series (Manual)

The balance can correct the internal mass value within the range shown below. This function corrects the

internal mass value to conform to an external weight. The corrected mass value is maintained in non-volatile memory even if the AC adapter is removed. The internal mass value is corrected as follows:

Model Target Range Model Target Range

GX-203A 200.000g GX-303A 200.000g GX-403A 200.000g GX-603A 500.000g

GX-1003A 1000.000g GX-1603A 1000.000g

GX-10001A 5000.0g

GX-6002A

Weighing with the same weight

Correct the internal mass value

±9.999g ±9.999g ±9.999g ±9.999g ±9.999g

±9.999g

by+0.15g/5kg and calibrate with the internal mass

After performing one touch calibration, place the external weight on the balance and check the correction amount. (In the example, since there is deviation of -0.06g at 2000g, the correction amount for the GX-6002A is +0.015g/5kg because the correction target is 5000g)

Setting procedure

GX-2002A 2000.00g GX-3002A 2000.00g GX-4002A 2000.00g GX-6002A 5000.00g

GX-10002A 5000.00g

GX-6001A 5000.0g

±99.99g ±99.99g ±99.99g ±99.99g ±99.99g

±999.9g ±999.9g

Press and hold

Press several times

1. Press and hold the SAMPLE key to display .

(Enter the function setting)

2. Press the SAMPLE key several times until appears.

3. Press the PRINT key to display auto .

4. Press the SAMPLE key to display and press the PRINT . Select the following keys.

RE-ZERO key(＋) Select the correction value. （After ＋9999 digits will be －9999 digits.）

MODE key(－) Select the correction value.

（After －9999 digits will be ＋9999 digits.）

PRINT key Register and display the following items. CAL key Cancel and display the following items.

5. Press the CAL key twice, to return to the weighing display.

6. Press the CAL key and calibrate with the internal mass.

7. Place the external weight on the balance check whether the value was corrected properly. If it is not corrected properly, return to Step 1.

9.Function Switch And Initialization

9-1 Permit Or Inhibit

The balance stores parameters that must not be changed unintentionally adjustment data for accurately weighing, data for adapting to the usage environment, data to control the communications interface, etc. "A function selection switch" is provided to protect those parameters and it can be used to select "change prohibited" or "changeable (usable)". By setting to "change prohibited", that function cannot be entered, so inadvertent change.

"Switch for function selection" has the following five.

"Function table", "Calibration using the internal mass", "Calibration using the external weight",

"Automatic self calibration", "Internal mass correction".

Step1 Press the ON:OFF key to turn off the display. Step2 While pressing and holding the PRINT key and the SAMPLE key, press the ON:OFF

key to display p5 .

Step3 Press the PRINT key. Then the balance displays the function switches.

SAMPLE key To select a switch to change the parameter. The selected switch blinks.

RE-ZERO key To change the parameter of the switch selected.

0 To inhibit changes. (Can not be used.) 1 To permit changes. (Can be used.)

PRINT key To store the new parameter and return to the weighing mode. CAL key To cancel the operation (display Clr ) . Press the CAL key and return to the weighing mode

Example of GX-A series

Function table 0 To inhibit changes to the function table. 1 To permit changes to the function table.

Calibration using the internal mass (One-touch calibration) 0 To inhibit calibration using the internal mass. 1 To permit calibration using the internal mass.

Calibration using an external weight 0 To inhibit calibration using an external weight. 1 To permit calibration using an external weight.

Automatic self calibration 0 To inhibit automatic self calibration. 1 To permit automatic self calibration.

Internal mass correction 0 To inhibit correction 1 To permit correction

The display shown left indicates the factory settings.

(Calibration due to changes in temperature)

Example of GF-A series

Function table 0 To inhibit changes to the function table. 1 To permit changes to the function table.

No function

Calibration using an external weight 0 To inhibit calibration using an external weight. 1 To permit calibration using an external weight.

No function

No funciton

The display shown left indicates the factory settings.

9-2 Initializing The Balance

This function returns the following parameters to factory settings. Calibration data

□ Function table □ The sample unit mass value (counting mode),

100% reference mass value (percent mode)

□ The data that is stored in the balance using the data memory function □ External calibration weight and target weight value

□ Function switch settings

Note Be sure to calibrate the balance after initialization.

Step1 Press the Step2 While pressing and holding the PRINT key and the SAMPLE

ON:OFF key to turn off the display.

With pressing and holding

Hold

key, press the ON:OFF key to display p5 .

Step3 Press the SAMPLE key to display Clr . Step4 Press the PRINT key.

To cancel this operation, press the CAL key.

Step5 Press the RE-ZERO key to change . Step6 With displaying Clr , press the PRINT key to initialize the

balance. The balance will automatically return to the weighing mode.

Clr

end

0. 00

10.Function Table

The function table reads or rewrites the parameters that are stored in the balance. These parameters are

maintained in non-volatile memory, even if the AC adapter is removed.

The function table menu consists of two layers. The first layer is the "Class" and the second layer is the

"Item".

10-1 Setting The Function Table

Display symbol and keys

The symbol " When pressing and holding the key in the weighing mode, the balance enters

the function table mode. The key to select the class or item in the function table mode.

" shows effective parameter.

The key to change the parameter.

When a class is displayed, moves to an item in the class. When an item is displayed, stores the new parameter and displays the next class. When an item is displayed, cancels the new parameter and displays the next class. When a class is displayed, exits the function table mode and returns to the weighing mode.

Setting procedure

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

Step 3 Press the PRINT key to enter the class Step 4 Press the SAMPLE key to select a item. Step 5 Press the RE-ZERO key to select a parameter for the selected item.

SAMPLE key to select a class.

Step 6 To change another (multiple) item with the same class, repeat Step 4 and Step 5. To end the

setting change of the same class, proceed to Step 7.

Step 7 If storing parameters of the selected class, press the PRINT key.

Then the next class is displayed. If canceling the current operation, press the CAL key. Then the next class is displayed.

Step 8 When specifying parameters for another class, proceed to Step 2.

When finishing the setting, press the CAL key to return to weighing mode.

Setting Example

This example sets "Stores weighing data" for "Data memory" and "1 minute" for "Interval time".

Classification item

Step1

Step1 Keep pressing and holding

Step2

Press several times

Step3

Step4

Press 6 times

Step5

Press several times

Setting item

Setting item "Data memory function"

"Data memory function"

Step5

Press twice

Setting value "Store the weighing data"

Step7

Setting value "Interval time"

Step10

Finish. Weighing display

Step8

Press 4 times

Setting value "every 1 minute"

Step9

10-2 Details Of The Function Table

Class Item Description

Cond

Condition

5t-b

Stability band width

Hold

Hold function

ba5fnc

Environment Display

trc

Zero tracking

5pd

Display refresh rate

pnt

Decimal point

p-on

Auto display-ON

p-off

Auto display-OFF

Minimum display

Buzzar

Stores tare value

di5p-led

Backlight brightness

Parameter

0 1 2

0 1

0 1 2 3 0

1 2

0 1

0 1 0

0~9 5

Fast response, sensitive value

Slow response, stable value

Stable when within

OFF ON OFF Normal Str ong

Very strong 5 times / second 10 times / second 20 times / second

Point ( . ) Comma ( , )

OFF

Display minimum display digit Not display minimum display digit

OFF

OFF Zero indication at power on ON Previous time weighing indication at power on

10％～100％

Factory setting

1 digit

3 digit

Cl adj

Clock

Bubble spirit level lightning

See "10-4 Clock and calender Function"

OFF

Factory setting

Can be changed by response adjustment. With " the averaging time.

The stabilization indicator illuminates with the display fluctuation within the range. With " stabilization range.

Holds the display when stable in animal mode. With "Hold 1", ANIMAL turns on.

Keeps zero display by tracking zero drift.

Output frequency approx.5.21Hz Output frequency approx.10.42Hz Output frequency approx. 20.83hz

Decimal point format

Turns on the weighingmode display when AC adapter is connected

Turns off the display after 10 minutes of inacticity.

Display at weighing start

Bubble spirit level LED lightning

Confirms and sets the time and date. The time and date are added to output data.

Hold 1

" , sets the

Hold 1

", sets

Note: "Digit" is a unit of minimum weighing value.

Class Item

Cp fnc

Comparator

Comparator mode

Number of comarator stages

Near zero

Flow measurement

Cp-t

Cp-p

Polarity

Cp in

Input method

Cp frd

Parameter

0 1 2

0 1

0 1 2 3 4 5

0 1 2 0 1 2 3 0 1

Description

No comparison

Comparison when stable value or overloaded

Continuous comparison

3 stage comparator

5 stage comparator

Also comare near zero

5 are not compared

are not compared

±10

are not compared

±20

are not compared

±50

100 are not compared

Plus only

Minus only

Bipolarity

Digital input, upper / lower limits

Weighing input, upper / lower limits

Digital input, reference value

Weighing input, reference value

Comparison by flow rate value

Comparison by weighing value

HI, OK, LO

HH, HI, OK, LO, LL

Comparator value

Cp HH

Second upper limit

Cp Hi

Upper limit

Cp lo

Lower limit

Cp ll

Second lower limit

Cp ref

Reference value

Tolerance value

Second tolerance value

See 10-5 comparator Function"

See "10-5 comparator Function"

Displayed only when is set to digital input.

Cp HH , Cp ll

displayed only when 5step comparator is set.

Displayed only when is set by input by load.

when 5 step comrator is set.

is displayed only

Cpin

are

Cp in

Factory setting

Note: "Digit" is a unit of minimum weighing value.

Class Item Description

Cp beep

Comparator buzzer

bep HH

HH buzzer

bep Hi

HI buzzer

OK buzzer

bep lo

LO buzzer

bep ll

LL buzzer

Parameter

0 1

OFF ON OFF ON OFF ON

OFF ON

Key mode

dout

Data output

prt

Data output mode

Auto print mode A

（Reference=zero）

Auto print mode B

（Reference=last stable value）

Stream mode

Key mode B (Immediately)

Key mode C (When stable)

ap-p

Auto print polarity

ap-b

Auto print difference

Interval output mode

Plus only

Minus only

Biolarity

10 digit

100 digit

1000 digit

Displayed only when 5 step comparator is set.

Accepts the PRINT key only when the display is stable.

Outputs data when the weighing value stabilizes beyond the range form to

from the zero point.

ap-b

Outputs data when the weighig value stabilizes beyond the range from value.

Outputs data at the specified display refresh rate.

Accepts the PRINT key regardless of the display condition.

Accepts the PRINT key immediately when the display is stable, or waits for the display to be stable when not.

Outputs data for each time set by

Regardless of displayed value

Difference between reference value and displayed value

ap-p

int

from last stable

ap-b

ap-p

Note: "Digit" is a unit of minimum weighing value.

Factory setting

Class

dout

Data output mode

Item

data

Data memory

Parameter

0 1

Description

OFF Stores unit mass in counting mode

Stores the weighing data and calibration history

Refer to "12*Data Memory"

int

Interval time

d-no

Data number

5-td

Time/Date output

5-id

ID number output

pU5e

Data output pause

at-f

Auto feed

info

GLP output

ar-d

Zero after output

Ufc

UFC function

Every measurement

0 1

2 seconds

5 seconds 10 seconds

30 seconds

1 minutes

2 minutes

5 minutes

10 minutes

No output

Output

No output

Time only

Date only

Time and date

No output ID number

Output ID number

OFF

ON open 1.6 seconds

OFF

ON open 1 line

OFF

Interval time in the interval memory mode when using

prt6.

Valid when data memory funciton is ON.

Refer to "10-4 Clock And Calender Funtion"

Selects the data output interval.

Selects whether or not automatic feed is performed.

Refer to "10-3 GLP output"

Function to apply re-zero after outputting data.

Refer to ,"Commnunication manual" on the A&D website.

Factory setting

Note: "Digit" is a unit of minimum weighing value.

Class Item Description

5if

Serial interface

Access point

bp5

Baud rate

btpr

Data bit, parity bit

Crlf

Terminator

type

Data format

t-Up

Command time out

Parameter

0 1

2 0

2 3 4 5 6

0 1 2

0 1

2 3 4 5 0 1

Printer

External indicator

600bps 1200bps

2400bps 4800bps

9600bps 19200bps 38400bps

7 bit EVEN 7 bit ODD 8 bit None CR LF CR

A&D standard format

DP format

KF format MT format NU format CSV format

No limited

Limited for one second

All communication setting are possible.

Only

CR: ASCII 0Dh code LF : ASCII 0Ah code

Refer to "communication manual " on the A&D website.

Selects wait time during command reception

can be selected.

0 1

U5b

USB interface

erCd

AK, error code

Ufnc

USB action mode

U-tp

USB data format

2 3

Factory setting

Note: "Digit" is a unit of minimum weighing value.

OFF ON

Quick USB ALL

Quick USB NU

Bidirectional USB virtual COM

A&D standard format

NU format

CSV format

TAB format

AK: ASCII 06h code

Refer to "communication manual " on the A&D website.

insallation of dedicated driver is required for PC.

Refer to "communication manual " on the A&D website.

Class

ap fnc

Application function

Minimum Weighing Warning Function

Item

apf

Application mode

5taf

Statistical function mode output items.

frd Unit

Flow rate unit

Ct auto

Calculation time automatic setting

-Cp

Minimum weighing comparison

Minimum weighing value input

Parameter

Normal weighing mode

Capacity indicator

Statistical calculation mode

Flow measurement mode

Gross, Net, Tare mode

Number of data, sum

Number of data,sum,max,min,range(max-min),average

Number of data,sum,max,min,range(max-min),average,

standard deviation,coefficient of variation

Number of data,sum,max,min,range(max-min),average,

standard deviation,coefficient of variation,relative error

g / s （gram/second）

g / m （gram/minute）

g / h （gram/hour）

2 3

mL / s （millilitter/second） mL / m （milliliter/minute）

mL / h （milliliter/hour）

OFF

0 1

No comparison Do not use MW Fnc

Comparison without near zero

Comparison including near zero

Refer to "15. Minimum Weighing Warning Function"

Description

Refer to "14. Flow Measurement"

Unit

d5 fnc

Specific gravity measureing function

ld in

Liquid density input

Specific gravity measureing mode

Refer to "4. Weighing Units"

0 1

ID number setting

Note: "Digit" is a unit of minimum weighing value.

Refer to "11-2 Setting The ID Number"

Factory setting

Water temperature

Liquid density

Density measurement of a soil Density measurement of a liquid

Refer to "18.Density Measurement"

Class Item Description

Lock function

Password lock

Password registration

Cfnc

Auto calibration

Calibration mode

Parameter

0 1

～

0 1 2

OFF ON

Administrator password input Operator 1 password input

Operator 10 password input

Setting temparature Setting time

Interbal time

Refer to "19. Password Lock Function"

Setting time1

Refer to "8-1 Automatic Self calibration"

Setting time2

Setting time3

Interval time

C5in

Correction of internal mass value.

is GX-A series only.

Note: "Digit" is a unit of minimum weighing value.

Factory setting

Automatic input

Digital input of correction value

Refer to "8-5 Correcting The Intenal Mass Value Of The GX-A series Auto

Refer to "8-6 Correcting The Intenal Mass Value Of The GX-A series Manual

10-3 Description Of The Class "Environment, Display"

Condition ( Cond )

This parameter is for sensitive response to the fluctuation of a mass value. Used for powder target mass, weighing a very light sample or when quick response weighing is required. After setting, the balance displays FAST .

This parameter is for stable weighing with slow response. Used to prevent a mass value from drifting due to vibration or drafts. After setting, the balance displays SLOW .

Stability band width ( 5t-b )

This item controls the width to regard a mass value as a stable value. When the fluctuation per second is less than the parameter, the balance displays the stabilization indicator and outputs or stores the data by function setting（dout, dataA etc.）The parameter influences the "Auto print mode". Also, the minimum display being displayed is 1 digit.

ex. If 0.01 mg display is selected by pressing the SAMPLE key on the GX-303A, 0.01 mg is 1 digit.

This parameter is used for sensitive response of the stabilization indicator. Used for exact weighing.

This parameter ignores slight fluctuations of a mass value. Used to prevent a mass value from drifting due to vibration or drafts

Hold function ( Hold ) (Animal weighing mode)

This function is used to weigh a moving object such as an animal. When the weighing data is over the weighing range from zero and the display fluctuation is within the stabilization range for a fixed period of averaging time, the processing indicator illuminates and the balance displays the average weight of the animal. When the animal is removed from the weighing pan, the display returns to zero automatically. This function is available only when the hold function parameter is set to "1" (the animal mode indicator ANIMAL illuminates) and any weighing unit other than the counting mode is selected. The stabilization range and averaging time are set in "Condition (Cond)" and "Stability band width (5t-b)".

Weighing range Averaging time Stabilation range

0.001g model 0.200g or more

0.01g model 2.00g or more

0.1g model 20.0g or more

Cond 0 Cond 1 Cond 2

2sec.(Efficiency priority) 4sec. 8

sec.(Exact priority)

5t-b 0 5t-b 1 5t-b 2

Lesser 6.25%

12.5%

Greater 16.7%

※ Animal container kit (GXA-12) can be installed except GX-203A.

Zero tracking ( trc )

This function tracks zero point drift caused by changes in the environment and stabilizes the zero

point. When the weighing data is only a few digits, turn the function off for accurate weighing.

trc 0 The tracking function is not used. Used for weighing a very light sample. trc 1 The normal tracking function is used.(±1 digit / 1 second) trc 2 The strong tracking function is used. (±1 digit / 0.5 second) trc 3 The very strong tracking function is used. (±2 digit / 0.2 second)

〃

Display refresh rate ( 5pd )

The periodic time to refresh the display. This parameter influences "Baud rate", "Data output pause" and the data output rate of "Stream mode".

Decimal point ( pnt ) The decimal point format can be selected. Auto display-ON ( p-on ) When the AC adapter is plugged in, the display is automatically turned on without the ON:OFF

key operation, to display the weighing mode. Used when the balance is built into an automated system. One hour warm up is necessary for accurate weighing.

Auto power-OFF（p-off）

This is a function to turn off only the display automatically when there is no operation made for a certain amount of time (approximately 10 minutes) while the power is on.

Minimum display（）

When weighing with rough precision, the minimum display can be turned off without key

operation. This is useful when built into an automated system/

Buzzer（beep）

Select ON/OFF for the built-in buzzer that sounds when a key is operated or the status changes.

Tare value record（）

After turning on the power supply, the display will not be automatically set to zero, and it will start from the previous weighing value. This is useful when a hopper, etc. is attached to the weighing pan and the power needs to be turned off while weighing discharge.

Backlight brightness（）

Select the brightness of the backlight of the LCD display.

Bubble sprit level lightning（）

Select ON/OFF for the LED that illuminates the bubble sprit level.

10-4 Clock And Calendar Function

The balance is equipped with a clock and calendar function.

When the Clock and Calender function（dout、5-td）is set, the time and date are added to the output data. Set or confirm the time and date as follows:

Operation

Step1 Press and hold the SAMPLE key until ba5fnc of the function

table is displayed in the weighing mode, then release the key.

Step2 Press the

SAMPLE key several times to display Cl adj .

Step3 Press the PRINT key.

The balance enters the mode to confirm or set the time and date.

Confirming the time

Step4 The current time is displayed with all the digits blinking.

□ When the time is not correct and is to be changed, press the RE-ZERO key

and go to step 5.

□ When the time is correct and the date is to be confirmed, press the SAMPLE

key and go to step 6.

□ When the time is correct and the date does not need to be confirmed, press the

CAL key and go to step 8.

Press and hold

Press several times

Set the time

Setting the time

Step5 Set the time in 24-hour format using the following keys.

RE-ZERO (＋)key MODE (－)key SAMPLE key

....

To increase the value by one.

.........

To decrease the value by one.

..........

To select the digits to change the value.

The selected digits blink.

PRINT key

...............

To store the new setting, display end and go to

step 6.

CAL key

..................

To cancel the new setting and go to step 6

Confirming the date

Step6 The current date is displayed with all the digits blinking.

□ To change the display order of year (y), month (m) and day (d), press

the MODE key. The date is output in the order as specified.

□ When the date is not correct and is to be changed, press the RE-ZERO

key and go to step 7.

□ When the date is correct and the operation is to be finished, press the CAL

key and go to step 8.

□ When the time is to be confirmed again, press the SAMPLE key and go

back to step 4.

Set the time

Store the time

Confirm the date

Set the date

Store the date

Setting the date

Step7 Set the date using the following keys.

RE-ZERO (＋)key MODE (－)key SAMPLE key

....

...........

..........

To increase the value by one. To decrease the value by one. To select the digits to change the value. The selected digits blink.

PRINT key

..............

To store the new setting, display end and go to step 8.

CAL key

..................

To cancel the new setting and go to step 8.

Quitting the operation

Step8 The balance displays the next menu（Cp fnc）of the function table.

Press the CAL key to exit the clock and calendar function and return to the weighing mode.

Note Do not enter invalid values such as a non-existing date when

setting the time and date.

When the clock backup battery has been depleted, the balance

displays rtc pf . Under this condition, press any key and set the time and date. The dead battery only affects the clock and calendar function. Even so, the function works normally as long as the AC adapter is connected to the balance.

10-5 Comparator Function

The comparison of comparators can select 3-steps or 5-steps (Cp fnc, Cp-t), and it is set to 3-steps at the factory setting. When 3-step comparator is set, the results of the comparison are indicated by HI OK LO on the display.

When 5-step comparator is set, HH is indicated by HI blinking and LL by LO blinking.

By using GXA-04, it is possible to output the comparison result at the contact point.

There are three types of scope that can be selected as follows.

 No comparison

 Comparison when the weight data is stable or overloaded  Continuous comparison

The conditions for comparing near zero are in six levels from "including near zero" to "± 100 digits". "Upper limit value and lower limit value" and "reference value and tolerance range" are the comparison standards. "Digital input" and "Input by sample load" are the for each value input methods for each value.

Refer to the function setting By setting the function setting Cp beep , it is also possible to sound an internal buzzer depending on

Cp fnc .

the result of the comparison.

3-step comparison result

Threshold value

Weighing value

Judgment formura

Upper limit

Lower limit

Upper limit value

Lower limit value

5-step comparison result

Threshold value

Second upper limit

Second lower limit

Weighing value

Judgment formura

2nd Upper limit value

Upper limit value

Upper limit

Lower limit value

Lower limit

2nd Lower limit value

Weighing value

＜

Weighing value Upper limit value

≦

＜

Weighing value

＜

≦

Weighing value

≦

Weighing value

≦

2nd

≦

Upper limit value

≦

Upper limit value

＜

Lower limit value 2nd

＜

Lower limit value

3-step comparison - display

Judgment result

5-step comparison - display

Judgment result

Lit display

Blinking display

Buzzer control

Note

□ In the flow measurement, the comparator function is used with the total weight.

Example1 （Comparison when the weighing data is stable or overloaded, excluding "near

zero" ± 20 digit, upper limit and lower limit.）

Selecting a comparator mode

Step1 Press and hold the SAMPLE key until ba5fnc of the function table is displayed, then

release the key.

Step2 Press the SAMPLE key several times to display Cp fnc . Step3 Press the PRINT key.

Step4 Press the RE-ZERO key several times to display ( " " always compare). . Step5 Press the SAMPLE key several times to display . Step6 Press the RE-ZERO key several times to display ( " " ± 20 digit is not

compared.)

Step7 Press the SAMPLE key several times to move to Cpin .

Step8 Press the RE-ZERO key several times to display . ( " " reference value is set.

digital input)

Step9 Press the PRINT key to store the selected mode.

Entering the upper and lower limit values

Step10 With displayed, press the PRINT key to display .

Step11 Press the PRINT key. The current setting of the upper limit value is displayed with all of the

digits blinking. When the current setting is not to be changed, press the PRINT or CAL key to go to step 12.

When the current setting is to be changed, press the RE-ZERO key and store the following

keys. SAMPLE key To select the digit to change the value. RE-ZERO key To change the value of the digit selected. MODE key To switch the polarity. PRINT key To store the new setting and go to step10.

CAL key To cancel the new setting and go to step 10.

Step12 When is displayed, pressing the PRINT key will display the currently set value.

If changing the setting value, it can be registered the tolerance value with the following keys.

For tolerance value, enter the value with the reference value set to 100%.

SAMPLE key Move the blinking digit.

R E - ZE R O ( +) k e y Change the value of the blinking digit. MODE (-)key Change the value of the blinking digit.

PRINT key Register and go to Step13

CAL key Cancel and go to Step13

Step13 Press the CAL key to return to the weighing display.

Example 2

（Continuous comparison, including "near zero", reference value and tolerance value.）

Selecting a comparator mode

Step1 Press and hold the SAMPLE key until

the key.

Step2 Press the SAMPLE key several times to display Cp fnc . Step3 Press the PRINT key.

Step4 Press the RE-ZERO key several times to display . (" " compared when stable and

over)

Step5 Press the SAMPLE key several times to display .

Step6 Press the RE-ZERO key several times to display .(" " near zero is also compared.)

Step7 Press the SAMPLE key several times to display Cpin . Step8 Press the RE-ZERO key several times to display . (" " upper-lower limit is set.

Input by loaded.)

Step9 Press the PRINT key to store the new setting.

ba5fnc of the function table is displayed, then release

Entering the reference and tolerance values

Step10 When is displayed, press the PRINT key. will be displayed.

Step11 When is displayed, press the PRINT key to check the currently set value (all

blinking). Press the RE-ZERO key to enter the load input mode.

Step12 Press the RE-ZERO key, 0.00g is displayed. Place a sample of the weight of the upper

limit on the balance and press the PRINT key. (Register the upper limit value.)

Step13 When finished, Cp lo is displayed. (Replace a sample of the weight of the upper

limit from the balance.)

Step14 When Cp lo is displayed, press the PRINT key to check the currently set value (all

blinking). Press the RE-ZERO key to enter the load input mode.

Step15 Press the RE-ZERO key, 0.00g is displayed. Place a sample of the weight of the lower

limit on the balance and press the PRINT key. (Register the lower limit value.)

Step16 When finished, Cp Hi is displayed. (Replace a sample of the weight of the lower

limit from the balance.)

Press the CAL key twice to return to the weighing display.

Sound the built-in buzzer corresponding to the comparison result.

Step1 Press and hold the SAMPLE key until ba5fnc of the function table is displayed. Step2 Press the SAMPLE key several times to display Cp beep . Step3 Press the PRINT key. Step4 Press the SAMPLE key to set the buzzer sound setting of the comparison result "ON/OFF".

When 3-step comparator is set, the display can be selected from the following 3 kinds

When 5-step comparator is set, the display can be selected from the following 5 kinds

. SAMPLE key Select the comparison result.

RE-ZERO key Set the buzzer sound setting of the comparison result "ON/OFF

PRINT key Store the setting.

CAL key Cancel and return to the weighing display.

11.ID Number And GLP Report

□ The ID number is used to identify the balance when Good Laboratory Practice (GLP) or Good

Manufacturing Practice (GMP) is used.

□ The data output compatible with "GLP/GMP" can be output to a personal computer or printer using the

RS-232C serial interface.

□ The GLP / GMP compliant report includes the balance manufacturer, model, serial number, ID

number, date, time and space for signature. It includes the results and using mass for calibration or calibration test data.

□ The balance can output the following reports for GLP/ GMP.

・"Calibration report" of the calibration, using the internal mass (Calibration due to changes in

temperature and one-touch calibration.)

・"Calibration report" of the calibration, using an external weight. ・"Calibration test report" of the calibration test, using an external weight.

・"Title block" and "End block" for the weighing data.

□ Calibration and calibration test data can be stored in memory to output several reports at the same

time. Refer to "12. Data Memory" for details.

□ The ID number is used to identify the balance when the balance is used for maintenance manegement. □ The ID number is maintained in non-volatile memory even if the AC adapter is removed. □ For details on confirming and setting the time and date. Refer to "10.4. Clock and Calendar

Function".

11-1 Setting The ID Number

Step1 Press and hold the SAMPLE key until ba5fnc of the function table is displayed, then

release the key.

Step2 Press the SAMPLE key several times to display id .

Step 3 Press the PRINT key. Set the ID number using the following keys.

SAMPLE key ································· To select the digit to change the value. RE-ZERO key, MODE key ··············· To set the character of the digit selected.

··········································· Refer to the display character set shown below.

PRINT key ···································· To store the new ID number and display

CAL key ······································· To cancel the new ID number and display .

Step4 With displayed, press the CAL key to return to the weighing mode.

Note The display segment of the balance is divided into 4types. For each segment display, refer to the "Display

correspondence table" in the next page.

7 segment 15 segment

11 segment

14 segment

Display correspondence table

11 Segment

0123456789

7 Segment

0123456789

14 Segment

0123456789

15 Segment

0123456789

ABCDEFGH

- JKLM

Space

ABCDEFGH

Space

ABCDEFGH

Space

ABCDEFGH

Space

JKLM

NOPQRSTUVWXYZ

11-2 GLP Report

Set the function setting to "info 1" for output of GLP / GNP data.

□ Output to a mini-printer "AD-8121B".

Set the "GLP report (info)" parameter to "1" .

Turn on the DIP switch No. 2 of the printer and change the print mode to MODE 3.

Output to a mini-printer "AD-8126".

Set the "GLP report (info)" parameter to "2" .

□ Output to a multi-printer "AD-8127".

Set the "GLP report (info)" parameter to "2" . Select the print mode to DUMP .

□ Output to a PC

Set the "GLP report (info)" parameter to "1" .

Note

If the time and date are not correct set the correct time and date in "Clock ( )" of the function

table.

Calibration report using the internal mass

This is the GLP report when the balance is calibrated using the internal mass.

Setting of

info 1

Printer format

A&D MODEL S/N ID DATE TIME

CALIBRATED(INT.) REMARKS

SIGNATURE

- - - - - -

<TERM>

CR LF

GX-10002A 123456789

LAB-0123

2017/12/31

12:34:56

Space, ASCII 20h Terminator, CR LF or CR Carriage return,ASCII 0Dh Line feed, ASCII 0Ah

。

Manufacturer

Serial number

ID number

Calibration type

Remarks

Signature

。

Model

Date Time

Setting of

info 1

PC format

A & D<TERM> MODEL GX-10002A<TERM> S/N 123456789<TERM> ID LAB-0123<TERM> DATE 2017/12/31<TERM> TIME 12:34:56<TERM> CALIBRATED(INT.)<TERM> REMARKS<TERM> <TERM> <TERM> SIGNATURE<TERM> <TERM> <TERM>

----------------

Calibration report using an external weight

This is the GLP report when the balance is calibrated using the external weight.

Setting of Printer format

A &　D MODEL GX-10002A S/N 123456789 ID LAB-0123 DATE 2017/12/31 TIME 12:34:56 CALIBRATED(EXT.) CAL.WEIGHT +100000.00 g REMARKS

SIGNATURE

<TERM>

CR LF

info 1

Space, ASCII 20h Terminator, CR LF or CR* Carriage return,ASCII 0Dh* Line feed, ASCII 0Ah*

Manufacturer

Model

Serial number

ID number

Date Time

Calibration type

Calibration weight

Remarks

Signature

Setting of PC format

info 1

A & D MODEL GX-10002A S/N 123456789 ID LAB-0123 DA TE 2017/12/31 TIME CALIBRATED(EXT.) CAL.WEIGHT +10000.00 g REMARKS <TERM> <TERM> SIGNATURE <TERM> <TERM>

---------------<TERM> <TERM>

<TERM>

Calibration test report using an external weight

This is the GLP report when checking the weighing accuracy of the balance with the external weight. (Adjustment is not performed)

Setting of Printer format

A &　D MODEL GX-10002A S/N 123456789 ID LAB-0123 DATE 2017/12/31 TIME 12:34:56 CAL.TEST(EXT.) ACTUAL

0.00 g +9999.95 g TARGET +10000.00 g REMARKS

SIGNATURE

info 1

Manufacture

Model

Serial number

ID number

Date Time

Calibration test

Zero point value

Target weight

value

Target weight

Remarks

Signature

Setting of PC format

info 1

A & D MODEL GX-10002A S/N 123456789 ID LAB-0123 DATE 2017/12/31 TI ME 12:34:56 CAL.TEST(EXT.) ACTUAL<TERM> +0.00 g +9999.95 g TARGET +100000.00 g REMARKS <TERM> <TERM> SIGNATURE <TERM> <TERM>

<TERM>

Space, ASCII 20h Terminator, CR*LF or CR Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

Heading and ending output

Application / Operation

As a method of managing weighing values, add "Heading" and "End" parts before and after the weighing value.

By pressing and holding the PRINT key, "Heading" and "End" are output in turn.

Note If the data memory function is used (except when

data 0), heading and end cannot be output..

Key output method

Step1 While displaying the weighing value, hold down the PRINT key and display 5tart to

output "Heading".

Step2 Output the weighing value. The output method depends on the setting of the data output mode.

Step3 Press and hold the PRINT key to display

Setting of Printer format

Internal setting

(

A &　D MODEL GX-10002A S/N 123456789 ID LAB-0123 DATE 2017/12/31 START TIME 12:34:56

info 1

type 1 )

Titile block

Manufacrurer

Model

Serial number

ID number

Date

Time

WT +12.3456 g WT +12.3461 g WT +12.3462 g WT +1234.61 g WT +12.3461 g WT +12.3453 g WT +12.3471 g WT +12.3464 g

Weighing data

END TIME 12:45:56 REMARKS

Time

Remarks

SIGNATURE

Signature

End block

recend, "End" is output.

Setting of PC format

Internal

（

A & D<TERM> MODEL GX-10002A<TERM> S/N 123456789<TERM> ID LAB-0123<TERM> DATE 2017/12/31<TERM> START<TERM> TIME 12:34:56<TERM> <TERM>

WT +12.3456 g<TERM> WT +12.3461 g<TERM> WT +12.3462 g<TERM> WT +12.3463 g<TERM> WT +12.3451 g<TERM> WT +12.3453 g<TERM> WT +12.3471 g<TERM> WT +12.3464 g<TERM> <TERM> EN D<TERM> TIME 12:45:56<TERM>

REMARKS<TERM> <TERM> <TERM> SIGNATURE<TERM> <TERM> <TERM>

info 1

Ttype 1 ）

<TERM>

CR LF

Space, ASCII 20h terminator, CR LF or CR Carriage return, ASCII 0Dh Line feed, ASCII 0Ah

12.Data Memory

Data memory is a function to store weighing data and calibration data in memory. The data stored in

memory are available for outputting at one time to a printer or personal computer.

The following five types of data can be stored.

Unit mass (Counting mode) Up to 50 sets

Weighing value Up to 200 sets

Calibration report Internal calibration

External calibration Calibration test report Internal test calibration

External test calibration

12-1 Data Memory For Weighing Data

Features

□ It is not necessary to connect the printer or personal computer to the balance continually, because

the balance stores the weighing data in memory.

□ The data in memory can be displayed on the balance for confirmation. □ Data (ID number, data number, time and date) to be added to the output data can be selected in the

function setting.

□ The balance can store 200 sets of weighing data in memory (if time and date are added, the balance

can store 100 sets).

※ For the unit mass storage method, refer to "5-2 Counting Mode".

Storing the weighing data

Last 50 sets

Note

1. Set the "Data memory (data)" parameter to " data 2". Refer to "10. Function Table".

2. Specify the "Time/Date output (5-td)" parameter whether time and date is to added or not.

3. The storing mode depends on the "Data output mode (prt)" parameter setting.

(stream mode), data may not be stored correctly.

※

It is also possible to change the time / date setting after storing the weighing value.

When set to prt3

Display and symbol

Number of stored data

Full memory

Data number of the displayed weighing value

Caution

Weighing display in

progress

Display of measured weighing

value

When the volume of measured values stored reaches its maximum,

blink in turn.

fUl dat

□ When weighing data is being stored in memory, the data is output simultaneously using RS-232C interface or

USB.

□ "fUl" indicates that memory is full or the memory capacity has been reached. More data cannot be

stored unless the memory data is deleted.

□ Automatic self calibration can not be used while the interval memory mode is active. □ Statistic calculation function can not be used when the data memory function is active.

Setting the function table

Parameter settings for each output mode are as follows:

Item Mode

Key mode Auto print mode A prt 1 Auto print mode B Key mode B（immediate） prt 4

Data output

mode

prt 0

prt 2

Auto print

polarity,

difference

Data memory function

Not used data 2

ap-a 0 ～ 2 ap-b 0 ～ 2

data 2 data 2 data 2

Interval time

Not used

Key mode C（stable） prt 5 data 2

Not used

Interval output mode prt 6 data 2 int 0 ～ 8

Prameter settings for Data number, ID number, Time and Date

No d-no "0"

5-td 0 －

Data number

Yes d-no "1" Time only 5-td 1 No 5-id "0" Date only 5-td 2

TTime and date

ID number

Yes 5-id "1" Both 5-td 3

Enabling the data memory function

1 Press and hold the SAMPLE key until ba5fnc is displayed, then release the key.

2 Press the SAMPLE key several times to display dout .

3 Press the PRINT key.

4 Press the SAMPLE key three times to display data .

5 Press the RE-ZERO key to display .

6 Press the PRINT key to store the setting.

7 Press the CAL key to return to the weighing mode.

Recalling the memory data

Confirm that the "Data memory (data)" parameter is set to " data 2".

1. Press and hold the PRINT key until is displayed, then

release the key.

Left of the display

Up to 200 pieces

2. Press the PRINT key to enter the memory recall mode. The type of

data appears in the upper left of the display as shown to the right "-d- or

When setting without clock / date

d-t" . Recall the data in memory using the following keys.

RE-ZERO key MODE key PRINT key

.....

...........

To proceed to the next data set. To go back to the previous data set.

When setting with clock / date

To transmit the current data using the RS-232C or USB.

With SAMPLE held down, press the CAL key

To delete the current data.

CAL key

...............

To exit the memory recall mode.

3. Press the CAL key to return to the weighing mode.

※

It is also possible to change the time / date output setting after storing the weighing value.

Transmitting all memory data at one time

Confirm that the "Serial interface (5if)" parameters are set properly. Refer to "10. Function Table" and "Communication Manual " on the A&D website.

1. Press and hold the PRINT key until is displayed, then release the key.

2. Press the SAMPLE key to display out .

3. Press the PRINT key to display out with " " blinking.

4. Press the RE-ZERO key to display out with " " blinking.

5. Press the PRINT key to transmit all data using the RS-232C , USB.

6. The balance displays when all data is transmitted.

Press the CAL key to return to the weighing mode.

Deleting all memory data at one time

1. Press and hold the PRINT key until is displayed, then release the key.

2. Press the SAMPLE key several times to display .

3. Press the PRINT key to display with " " blinking.

4. Press the RE-ZERO key to display with blinking.

5. Press the PRINT key to delete all data

6. The balance displays end and returns to the weighing mode.

12-2 Data Memory For Calibration And Calibration Test

Characteristic

□ Calibration data (when and how it is performed) and calibration test data can be

stored in memory.

□ All the data in memory is available to be output at one time to a printer or

personal computer.

Up to 50 data sets of the latest calibration or calibration test can be stored. ※ When the memory capacity has been reached to 50, "fUl" " " illuminates in order in the upper left of the display as shown below.

Storing the calibration and calibration test data

1. Set the "Data memory (data)" parameter to " data 2". Refer to "10 Function Table".

2. With the settings above, each time calibration or calibration test is performed, the data is stored automatically.

Upper left of the display

Transmitting the memory data

Step1 Press and hold the CAL key during weighing display. When

a displayed, release your finger from the key to display .

Step2 Press the PRINT key to display .

Step3 Change the / with the RE-ZERO key.

Display the .

Step4 Press the PRINT key to start output at one time while

is displayed.

The output format conforms to "GLP output".

Step5

When output at one time is completed, displays

after is displayed.

Step6 If the saved history is deleted all at once, please proceed to

How to delete history. To return to the weighing value, press

Output at one time

the CAL key.

* If the indicators blink in turn during weighing

display, 50 instance of data are stored.

Press and hold

Release

If history is saved history in this state, old data will be

overwritten. Optionally delete the saved data.

Delete all at once

Deleting data stored in memory

1. Press and hold the CAL key until is displayed, then release the key. is displayed.

2. Press the

SAMPLE key to display .

3. Press the PRINT key to display .

4. Press the RE-ZERO key to change / .

Display .

5. Press PRINT while is displayed, output at once is

started.

6. When the balance displays and returns to the weighing mode.

Press and hold

Release

Deleting

13.Statistical Calculation Mode

The statistical calculation mode statistically calculates the weight data, and displays or outputs the results. To use the statistical calculation mode, set the "Application function (apf)" parameter of “Application (ap fnc)” in the function table to “2”, as described below. Statistical items available are number of data, sum, maximum, minimum, range (maximum-minimum), average, standard deviation and coefficient of variation. What statistical items to output can be selected from the four modes in the function table ( ) .

□ The wrong data input can be canceled by the key operation, if immediately after the input. □ Turning the balance off will delete the statistical data.

□ The standard deviation and coefficient of variation are obtained by the equation below:

Standard deviation=

Standard deviation

Coefficient of variation (CV)=

where Xi is the i-th weight data,

N is number of data.

x 100 (%)

Average

Relative error of maximum value =

Maximum value

Average

Minimum value

Relative error of minimum value =

Average

□ When there is data with a minimum display digit off, the calculation result is displayed with the

minimum display digit off. (Minimum display digit is rounded off.)

Average

x 100 (%)

13-1 How To Use The Statistic Calculation

(1) Getting Started

Switching to the Statistical Function Mode (Changing The Function Ta bl e )

1. Press and hold the SAMPLE key until ba5fnc of the function table

is displayed, then release the key.

2. Press the SAMPLE key several times to display 1ap fnc .

3. Press the PRINT key to display .

4. Press the RE-ZERO key several times

Press and hold

Press several times

to display 1 .

To select statistical items to output, go to step 5.

To store the statistical function mode setting, go to

step 7.

To disable the statistical calculation mode, press the

RE-ZERO key to select

Press several times

Store the setting Output statistic calculation

Step 7 Step 5

Selecting the statistical items to output

5. Press the SAMPLE key to display

6. Press the RE-ZERO key to select the output items. In the example, output the number of data, sum, maximum,

minimum, range (maximum-minimum) and average are selected.

Parameter

Description

0 Number of data, sum

Number of data, sum

7. Press the PRINT key to store the setting.

8. Press the CAL key to return to the weighing mode.

Maximum, minimum, range (maximum – minimum),

average

Number of data, sum

Maximum, minimum, range (maximum – minimum),

average, Standard deviation, coefficient of variation

Number of data, sum

Maximum, minimum, range (maximum – minimum),average, Standard deviation,coefficient of variation Relative error of maximum value, relative error of minimum

value

Selecting the unit

9. Press the MODE key to select the unit to be used for the statistical calculation mode. In the example shown at the right, gram (g) is selected.

Notes

Selecting the unit using the MODE key is not available after the data is entered. In this case, clear the data as described on page 67 and select the unit using the MODE key.

When the unit used for the statistical calculation mode is to be enabled upon power-on, select the unit in “Unit (Unit)” of the function table beforehand.

(2) Using The Statistical Calculation Mode

Entering data for statistical calculation

Use the following keys to operate the statistical calculation mode.

MODE key

When no data has been entered, selects the unit.

SAMPLE key ............. Turns the minimum weighing value on or off, in the weighing mode.

RE-ZERO key PRINT key

Outputs the statistical results while the statistical results are displayed. (Output is not in

CAL key

1 Press the RE-ZERO key to set the display to zero.

.................

...........

.................

.....................

When the data is entered, moves between the displaying items (weighing mode,

statistical results and data operation) each time the key is pressed.

Sets the display to zero in the weighing mode. Outputs the data number and the weight data and includes the weight data to statistical

calculation in the weighing mode. (Output is not in the data format specified in the function table because of the data number added.)

the data format specified in the function table.)

Returns to the weighing mode.

2 Place the sample on the weighing pan and wait for the

stabilization indicator to turn on.

3 Press the PRINT key to add the data displayed to statistical

calculation. The number of data on the upper left of the display increases by 1.

4 Repeat steps 1 to 3 for each weighing.

Weighing pan

Sample

Outputting the statistical results

5 Each time the MODE key is pressed, the display changes:

the results as selected in “Statistical function mode output items (5taf)”, and ,

Notes

When the number of data is 1, the coefficient of variation is displayed as - - - - - - - .

When the average is 0, the coefficient of variation is displayed as - - - - - - - .

Statistical items are indicated on the upper left of the display using the following symbols.

Symbol

Statistical item

Sum

Maximum

Minimum

Average

Range (Maximum – minimum)

Standard deviation

Coefficient of variation

Relative error of maximum value

Relative error of minimum value

Output the statistical result

4. Delete the statistical data

3. Delete the latest data

Output example

N 10 SUM

1000.00g MAX 105.00g MIN 95.00g R 10.00g AVE 100.00g SD 2.800g CV　　　 2.8 % MAX% 5.0 % MIN% 5.0 %

Display the statistical result

Function table parameter

(3) Deleting the latest data

When the wrong data is entered, it can be deleted and excluded from statistical calculation. Only the latest data can be deleted.

1 In the weighing mode, press the MODE key to display

1 .

2 Press the PRINT key to display . 3 Press the RE-ZERO key to display .

4 Press the PRINT key to delete the latest data and exclude

it from statistical calculation.

The number of data decreases by 1 when the balance

returns to the weighing mode.

Press several times

Clearing the statistical data

All the statistical data will be deleted and the number of data will be 0 (zero).

1 In the weighing mode, press the MODE key, to display .

2 Press the PRINT key to display

3 Press the RE-ZERO key to display

4 Press the PRINT key to delete the statistical data. The number of data becomes 0 (zero) when the

balance returns to the weighing mode.

Press several times

13-2 Statistical Calculation Mode (Example Of Use)

Here, as an example of use of the statistical calculation mode, mixing of the multiple formulae such as medicine is described. The mixing process is recorded using the balance and the printer. In the example, the GX-303A and the AD-8126 or AD-8127 are connected using the RS-232C serial interface.

(1) Getting Started

Changing the function table

Changes To enable the statistical calculation mode

Press several times

To enable “Zero after output”

Enabling the statistical calculation mode

1 Enter the function table menu. Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

2 Select the application function.

Press the SAMPLE key several times to display 1ap fnc .

Then, press the PRINT key to display 1 .

3 Change the application function parameter to “2”.

Press the RE-ZERO key to display

PRINT key to confirm the change. After end ,

. Press the

1 is displayed.

Enabling “Zero after output”

4 Select “Zero after output”.

Press several times

Press the SAMPLE key several times to display 1dout . Then,

press the PRINT key to display , and press the

SAMPLE key several times to display 1 .

5 Enable “Zero after output”.

Press the RE-ZERO key to display

the PRINT key to confirm the change. After 1end , 5if is

displayed.

. Then, press

Returning to the weighing mode

6 Press the CAL key to return to the weighing mode.

Press several times

Returning to the weighing mode

(2) Using The Statistical Calculation Mode

1 Press the RE-ZERO key to set the display to zero. 2 Place a container on the weighing pan.

Press the PRINT key to cancel the weight (tare). The

balance displays . (Storing the tare value)

The tare value data is output when the peripheral output

equipment is connected.

3 Weigh formula 1 and press the PRINT key. The balance

displays . (Storing the weight value of formula 1)

The weight value data is output when the peripheral

output equipment is connected.

4 Weigh formula 2 and press the PRINT key. The balance

Container

Container(tare value)

displays . (Storing the weight value of formula

The weight value data is output when the peripheral

output equipment is connected.

5 When there are some more formulae to be added, repeat

step 4.

6 After mixing is complete, press the MODE key to display

the statistical results.

7 Press the PRINT key to output the number of data saved

including the tare value and the total weight.

Output example

No.

1 ST,+0005.637 g No.

2 ST,+0001.992 g

No. ST,+0007.780 g

Tare value

Formula 1

Formula 2

N SUM

+15.409 g

Total weight

N0. 1 ST,+0005.637 g

Formula 1

N0. 2 ST,+0001.992 g

Formula 2

N0. 3 ST,+0007.780 g

Formula

Formula 1+2

Total weight

N 3 SUM

ST,+00+15.409g

14.Flow Measurement

The balance has a "flow mode" that calculates the amount of change in the weighing value per hour.

To use the statistical calculation mode, set the "Application function (apf)" parameter of “Application (ap fnc)” in the function table to “3”, as described below.

Calculating the flow rate from the weight output of the balance may change the number of weighing values per unit time, so there is a possibility that the result will not be correct. The flow mode is calculated at the accurate timing at which the weighing value is updated in the balance, so it is possible to calculate the correct flow rate value.

If the flow unit is set to ml/*, density can be registered. The maximum number of registrations is 10, and if density is set in advance, it can be selected according to the measurement sample.

Flow calculation formula

□ Q : Flow rate Ct : Calculation time



Note

□ In flow mode, the display update timing during flow display changes according to the calculation time Ct.

□ The flow rate value is displayed as "0" until the set calculation time Ct has elapsed.

Weight

The relationship between calculation time Ct and flow update timing is as follows.

Calculation

Time Ct

1 sec. 1 sec. 30 sec. 1 sec. 20 min. 10 sec. 2 sec. 1 sec. 1 min. 1 sec. 30 min. 15 sec.

5 sec. 1 sec. 2 min. 1 sec. 1 hour 30 sec. 10 sec. 1 sec. 5 min. 3 sec. 20 sec. 1 sec. 10 min. 5 sec.





1 2 3 4 5 6

Ct = 1 second Calculate instantaneous flow rate

W : Current calculated value W’ : Weight value befer Ct

Weighing value

Time

The longer the Ct is set, the more stably the flow rate value can be calculated.

Display

update

Calculation

Time Ct

Weight

1 2 3 4 5 6

Ct = 5 minutes With the amount of change in the measured value for 5 seconds, calculate flow rate

Display

update

Calculation

Weighing value

Time

Time Ct

Display

update

□ The recorded weighing data can be initialized by turning off the power or by pressing RE-ZERO key. □ In flow mode, the unit is g and flow unit only. Other units cannot be displayed. □ Automatic environment setting / self-diagnosis function cannot be used in flow mode. □ "Heading" and "End" of the GLP report function cannot be output in flow mode. □ The data memory function cannot be used in flow mode.

14-1 How To Use Flow Measurement

Enable flow rate measurement Switch flow rate measurement (Change the Function Table) 1 Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

2 Press the SAMPLE key several times to display ap fnc . 3 Press the PRINT key to display .

4 Press the RE-ZERO key several times to display . If you want to change the flow rate unit, go to "5". If you want store the setting, go to "7". If you want to cancel the flow function, press the RE-ZERO key and return to .

Setting of flow rate unit

5 Press the SAMPLE key to display .

Store the setting go to "7"

Press and hold

Press several times

Set the flow rate unit go to "5"

6 Press the RE-ZERO key to set the setting value.

Parameter Contents

0 1 2 3

4 5

7 Press the PRINT key to store. 8 Press the CAL key to return to the calculating display.

g / s (gram/sec)

g / m (gram/min) g / h (gram/hour) mL / s (milliliter/sec) mL / m (milliliter/min)

mL / h (milliliter/hour)

Change display

After returning to the weighing value display after setting to flow mode, the unit is "g" with the or indicator on. Use the MODE key to switch between flow rate display and "g" display. By switching, the total amount and flow rate can be checked.

How to set calculation time

In weighing display, press and hold the MODE key to display .

Total amount display

Calculation time can be changed by following key operation.

Press and hold

The setting range is 1 second to 1 hour.

RE-ZERO(+) key Change calculation time MODE(-) key Change calculation time PRINT key Store setting value If the flow rate unit is g / *,

the display will return to weighing display.

When the flow rate unit is mL / *,

the display goes to density setting display.

CAL key It returns to weighing display without storing the set value. When the calculation time automatic setting is " 1 ",

Ct auto

the resolution of the flow rate calculation result can be set. The larger the number, the more precision will be calculated.

RE-ZERO(+) key Change the resolution

PRINT(-) key Store setting value

If the flow rate unit is g / *,

the display will return to weighing display.

Decide and display flow rate or input density

When the flow rate unit is mL / *,

the display goes to density setting display.

CAL key It returns to weighing display without storing the set value.

How to set the density

When the setting value of function setting is 3, 4, 5, after setting the calculation time, go to density setting display. Density can be changed by following key operation.

The setting range is 0.0001g/cm

RE-ZERO(+) key Change the number of the blinking digit

MODE(-) key Change the number of the blinking digit

SAMPLE key Move the blinking digit

PRINT key The set value is the display returns to

weighing display.

CAL key The display returns to weighing display without

storing the set value.

to 9.9999g/cm3.

Method of reading density number

When flow unit is mL/*, up to 10 densities can be registered. To register a new density, read the unconfigured density number and then register according to the procedure of the setting method of calculation time.

Continuing to hold down the PRINT key in weighing display

displays .

Blinking is the current density number and is the set density value. The density number can be changed by following key operation

The setting range is F01～F10. RE-ZERO(+) key Change density number. MODE(-) key Change density number. PRINT key Read the density of the selected density

number and return to weighing display.

CAL key Return to the weighing display without reading the density of the selected density number.

Weighing display

14-2 Flow Measurement Setting

Flow value range by models

Model Flow value range

0.001g model 0.01~100

0.01g model 0.1~1000

0.1g model 1~5000

Depending on the sample to measure the flow rate, the above values may not apply.

Estimated flow rate value and calculating time (Ct) depending on your model

Calculation time automatic setting mode By setting "Calculation time automatic mode" of Function table "Application Function ap fnc " to "1 ", the optimal Ct is automatically set for the flow rate being measured. So, it is unnecessary to manually set Ct.

In the case of using 0.1g model Flow rate

(mL/min)

0.01

0.02

0.05

0.1

0.2

0.5 1 2 5

10 20 50

100

Example) When measuring the flow rate of 0.02 ml/min Set the calculation time in 5minutes or more In the case of using 0.01g model

Flow rate (mL/min)

0.1

0.2

0.5

1 2

5 10 20 50

100 200 500

1000

Example) When measuring the flow rate of 20 ml/min

Response priority ← Ct setting → Accuracy priority 1sec 2sec 5sec 10sec 20sec 30sec 1min 2min 5min 10min

Set the calculation time in 5 seconds to 30 seconds In the case of using 0.1g model

Flow rate (mL/min)

5 10 20 50

100 200

500 1000 2000 5000

10000

Example) When measuring the flow rate of 2000 ml/min Set the calculation time in 1 second to 5 seconds

Response priority ← Ct setting → Accuracy priority 1sec 2sec 5sec 10sec 20sec 30sec 1min 2min 5min 10min

15.Gross Net Tare Function

Even a small tare in the zero range can be recognized as a tare, you can manage the tare value. To use this function, enter the Function table as follow, and set "Application Function ap fnc " to "4 " in "Application mode apf ".

15-1 Preparation Of Gross Net Tare Function

Setting gross 1 Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

2 Press the SAMPLE key several times to display ap fnc . 3 Press the PRINT key to display .

4 Press the RE-ZERO key several times to display . 5 Press the PRINT key to store the setting. 6 Press the CAL key to return to the calculating display. Key operation In case of setting, operate with the following keys. ON:OFF key (Long press) Display ON → OFF

ress and hold

ress several times

(Short press) Display OFF → ON

ress several times

RE-ZERO key 1 Gross zero (In the "g" display, the range of the minimum scale is "0".) Clear a tare value With nothing on the weighing pan,

press the ON:OFF key and press

the RE-ZERO key in the state of gross

zero (Gross zero mark lit *1) 2 When the gross(total amount) is non-zero and positive value. Store a tare value(Update) 3 When the gross(total amount) is non-zero and negative value. Do nothing

Press the ON:OFF key 1 When it is within the zero range (±2% from power-on zero)(Refer to *5-1 Basic Operation) Update the zero point 2 When it is out of the range of zero Do nothing Display "G", "NET", "PT" mark display "G" mark lit When the tare value is zero "NET" mark lit When the tare value is out of zero "NET" "PT" mar k lit When the tare value is set by the PT command (preset tare).

NET G PT

NET mark G mark

mark PT mark

*1 Gross zero mark

Output

PRESET TARE

(

1 Every time pressing the PRINT key, it will output in the order of "NET"(object), "GROSS"(total amount), "TARE"(tare). 2 By using the UFC function, it can be set the output contents and order. 3 Output format is A&D standard format only.

Output example

ST,G ,+00045.67

ST,G ,+00055.90

ST,T ,+00010.23

(ST,PT ,+00010.23 g)

g g

NET(object)

GROSS(total amaount) TARE(tare)

tare)

When the unit setting of the balance is PCS or %, the unit output of "GROSS","TARE" and "PRESET TARE" become "g" unit.

15-2 Example Of Using The Gross Net Tare Function

1 After setting the gross net tare function, press the ON:OFF key when nothing is on the weighing pan. "G" will be displayed on the display. 2 Place the container to be tared on the weighing pan. 3 Press the RE-ZERO key to display , the tare value is set (updated). "NET" is displayed on the display. 4 Place the object. 5 Press the PRINT key, it will output in the order of "NET"(object),

NET

"GROSS"(total amount), "TARE"(tare). 6 Remove anything on the weighing pan and press the ON:OFF key to return to the "1". To continue weighing without changing the tare value, remove the object only, place the next weighing object and press the PRINT key to continue outputting.

Output

16.Minimum Weighing Warning Function

The minimum weighing value is the minimum necessary amount of sample to be used for correctly performing quantitatively performing quantitative analysis, taking into consideration measurement error of the balance. If the amount of sample is too small, the proportion of the measurement error in the measured value increases accordingly, and the reliability of the analysis result may drop. By using the minimum weighing warning function, it is possible to judge at a glance whether the amount of sample meets the set minimum weight value. This function can be used only in "mg or g" mode. " " is displayed at the top of the unit part when in use. When the amount of sample is less than the set minimum weighing value, the " " indication flashes. When the amount of sample reaches the minimum weighing value or more, the " " indicator will turn off The minimum weighing value can be changed from the function setting. The factory setting is 0 g. If the set value is 0 g, no warning will be displayed even if the minimum weighing warning function is ON. Also, a value greater than weighing capacity cannot be set as minimum weighing value.

There are two kinds of warning display as follows

"Excluding near zero" "Including near zero"

Near zero is within ± 10 digits of 0 g.

Setting procedure

1. Hold down the SAMPLE key to display the function setting .

2. Press the SAMPLE key several times to display .

3. Press the PRINT key.

4. will be displayed. Press the RE-ZERO key to change the display from to (excluding near zero) or (including near zero).

5. To change the setting of the minimum weighing value, proceed to 6.

If the minimum weighing value will not be displayed, press the PRINT key.

6. Press the SAMPLE key to display .

7. Press the PRINT key.

8. Set the minimum weighing value. The minimum weighing value can be changed by the following key operation.

RE-ZERO(+) key Change the value of the blinking digit. MODE（-） key Change the value of the blinking digit. SAMPLE key Move the blinking digit. PRINT key Store the set value and proceed to the next item. CAL key Advance to the next item without storing the setting value.

9. Press the PRINT key to return to the weighing display.

10. Press the CAL key to return to the weighing display.

Setting confirmation and changing method from the weighing display

1. Press the MODE key in the weighing display.

2. The current setting minimum weighing value blinks.

3. Press the PRINT key.

4. Set the minimum weighing value. The minimum

weighing value can be changed by the following key operation.

RE-ZERO(+) key MODE（-） key Change the value of the blinking digit. SAMPLE key Move the blinking digit. PRINT key Store the set value and proceed to the next item. CAL key Advance to the next item without

storing the setting value.

Note

□ If is set to anything other than , the unit is fixed in "g" units and it cannot be changed the unit with the MODE key. □ To turn OFF the minimum weighing value warning function, set to by referring to "Setting procedure" above.

Change the value of the blinking digit.

17.Underhook

The underhook can be used for magnetic materials or density measurement. The built-in underhook is revealed by removing the plastic cap on the bottom of the balance. Use the underhook as shown below.

Caution

□ Do not apply excessive force to the underhook. □ When not in use, do not open the cover to prevent dust from getting into the balance.

□ Do not push the underhook upward.

□ The weighing pan, pan support and draft gate fall off, when turning over the balance.

Remove them first.

□ When not in use, attach the plastic cap to prevent dust from getting into the balance.

Cap

Underhook (Hole diameter: approx. 4mm)

Bottom of the balance

18.Programmable-Unit

This is a programmable unit conversion function. It multiplies the weighing data in grams by an arbitrary coefficient set in the function table and displays the result.

The coefficient must be within the range between the minimum and maximum shown below. If the coefficient set is beyond the range, an error is displayed and the balance returns to the coefficient setting mode, prompting to enter an appropriate value. A coefficient of 1 was set at the factory.

Model Minimum

coefficient GX/GF-203A/303A/403A/603A/1003A/1603A GX/GF-2002A/3002A/4002A/6002A/10002A 100 GX/GF-6001A/10001A 10

Operation

1 Press and hold the SAMPLE key until ba5fnc of the function table is displayed. 2 Press the SAMPLE key several times to display .

3 Press the PRINT key. The balance enters the mode to confirm or set the coefficient.

Confirming the coefficient

4 The current coefficient is displayed with the first digit blinking.

□ When it is not to be changed, press the CAL key and proceed to step 6.

□ When it is to be changed, press the RE-ZERO key and proceed

to step 5.

Setting the coefficient

5 Set the coefficient using the following keys.

SAMPLE key To select a digit to change the value.

The selected digit blinks. RE-ZERO key To change the value. MODE key To change the decimal point position. Each time the switch is pressed, the

decimal point position changes as

follows:

PRINT key To store the new setting, display end and go to

step 6. CAL key To cancel the new setting and go to step 6.

0.000001

Maximum coefficient

1000

Quitting the operation

6 The balance displays Unit . Press the CAL key to exit the programmable-unit function and return

to the weighing mode.

Using the function

Press the MODE key to select the programmable-unit (no display on the unit section). Perform weighing as described in “5-1 Basic Operation (Gram Mode)”. After weighing, the balance displays the result (weighing data in grams x coefficient).

19.Density Measurement

The balance is equipped with a density mode. It calculates the density of a solid using the mass value

of a sample in air and the mass value in liquid.

For measurement, it use of the option GXA-13 specific gravity measurement kit is remommended.

Note

□ The density mode was not selected for use when the balance was shipped from the factory. To use

the mode, change the function table and activate the density mode " ". Refer to "4.Weighing Units".

□ Minimum display is fixed while density mode.

Formula to obtain the density

1. Density of solid

It can be obtained from the weight of the sample in air, the weight in the liquid, and the density of

the liquid.

 = 

2. Density of liquid

Weight in air, weight in liquid and volume of float can be obtained using a float of a known.

 =

A-B

-B

Ｖ

： Density of a sample A : Mass value of a sample in air 

：Density of a liquid B : Mass value of a sample in liquid

 ： Density of a sample A: Mass value of a sample in air Ｖ

： Volume of float B: Mass value of a sample in liquid

（１）Prior to measurement: Changing the function table

Prior to measurement, change the function table as follows:

1. Register the density mode.

Density mode cannot be used at the factory setting.

Please refer to "10.Function Table, Unit registration" and register the gravimeter mode ( ). Density mode is selected as one of the units with the MODE key.

2. Select whether the object to be measured is solid or liquid. (Function setting , )

3. In the case of solid density measurement, select a method of inputting the density of liquid

(function setting , )

Density of liquid can be set by water temperature input or direct input of density, or input by the following function setting can be selected.

4. To start the measurement, display the weighing display.

Press the MODE key to display the specific gravity measurement display.(Refer to the following page "Setting

procedure,2,3")

Note

□ The following density function ( ) is not displayed in the function settings unless density

mode is enabled. First, perform the "Register the density mode" operation with the unit setting ( ) of the function setting. When density mode is activated, " " appears next to

" ". For how to change the function setting, refer to "10. Function table".

Class Item and parameter Description

Density function

Factory setting

Liquid density input

Measurement object select

Input water temperature

Input density directly

Density measurement of solid

Density measurement of liquid

（２）Method of measuring density (specific gravity) of solid（function setting ）

Note

□ Re-set the density of the liquid with "(3) Entering the density of a liquid" as necessary, such as when

the temperature of the liquid changes during measurement or when changing the type of liquid.

□ In the density display, the four digits after the decimal point are fixed. The

minimum display cannot be changed by pressing the SAMPLE key. Density measurement displays the density fixed by measuring the weight in air and measuring the weight in liquid.

The relationship between each state and display is as follows.

Setting procedure

1. Check the weight measurement mode in air (g lights, blink ).

Press the RE-ZERO key to display zero without

placing anything on the weighing pan.

Weight measurement mode in air

lights, blinks

2. Place the sample on the weighing pan in air and

wait for the display to stabilize.

--sample, press the PRINT key.

Next, press the SAMPLE key to fix the weight in air, and

If outputting the mass of the

Weight in air

lights, blinks

move to the weight measurement mode in liquid (g lights, blink ).

From liquid density input

Place the sample on the weighing pan in air

□ When minus or E is displayed (when weighing capacity is

exceeded), press the SAMPLE key.

3. Transfer the sample from the weighing pan in air to

the weighing pan in liquid and wait for the display to stabilize. If outputting the mass of the sample, press the PRINT key.

Next, press the SAMPLE key to fix the weight in liquid and shift to the density input mode (g turned off, ).

Note

□ When E is displayed (when weighing capacity is exceeded)

press the SAMPLE key is invalid.

5. Enter the density of the liquid.

Refer to "(3) Entering the density of a liquid" and set the density. Next, press the PRINT key to enter the density mode. (g turns off, ).

6. If outputting the density, press the PRINT key.

If measuring another sample, press the

SAMPLE key and start with the weighing mode in air. The density unit is " ".

7. Re-set the density of the liquid with "(3) Entering the

density of a liquid" as necessary, such as when the temperature of the liquid changes during measurement or when changing the type of liquid.

Weight in liquid

lights, blinks

Set the density in liquid

lights, blinks

Display the density

lights, blinks

Move the sample from the pan in air to the pan in liquid

Remove the sample

8. Press the MODE key to enter another weighing mode.

（３）Entering the density of a liquid

Two ways to set the density of a liquid are available in the function table, "Liquid density input (ldin): by entering the water temperature or by entering the density directly.

Entering the water temperature The water temperature currently set (unit:°C, factory setting : 25°C) is displayed. Use the following keys to change the value. Setting range is 0.0℃ to 99.9℃, in increments of 0.1℃. Refer to the following matrix the " The relation between the water temperature and density

（）

RE-ZERO (＋)key

MODE (－)key

SAMPLE key

PRINT key

CAL key

...................

........................

......

........

...............

The key to increase the temperature by one degree. (0°C is displayed after 99°C)

The key to decrease the temperature by one degree. (99°C is displayed after 0°C)

Move the blinking digit.

The key to store new water temperature and return to the density mode.(Proceed to Step 5)

The key to cancel the change and return to the density mode. Proceed to Step 5.

The relation between the water temperature and density

℃ +0 +1 +2 +3 +4 +5 +6 +7 +8 +9

0.99984 0.99990 0.99994 0.99996 0.99997 0.99996 0.99994 0.99990 0.99985 0.99978

0.99970 0.99961 0.99949 0.99938 0.99924 0.99910 0.99894 0.99877 0.99860 0.99841

0.99820 0.99799 0.99777 0.99754 0.99730 0.99704 0.99678 0.99651 0.99623 0.99594

0.99565 0.99534 0.99503 0.99470 0.99437 0.99403 0.99368 0.99333 0.99297 0.99259

0.99222 0.99183 0.99144 0.99104 0.99063 0.99021 0.98979 0.98936 0.98893 0.98849

ｇ/ｃｍ３

Entering the density directly（

The density currently set (unit : g / cm3, factory setting : 1.0000g / cm3) is

displayed. Use the following keys to change the value. The range to set the density is 0.0000g / cm

）.

to 1.9999g / cm3.

If it is input beyond the settable range value, is displayed and the

display return to the input display.

.....

RE-ZERO (＋)key

MODE (－)key

SAMPLE key

PRINT key

...............

...................

The key to set the value of the blinking digit .

...........

The key to select the blinking digit to change the value.

Move the blinking digit.

The key to store the change and return to the density mode. Proceed to Step

CAL key

........................

The key to cancel the change and return to the density mode. Proceed to Step

（４）Measuring the density of a liquid（Function table ）

Density display is four decimal places. Minimum display can not change with the SAMPLE key.

Denisty is displayed after "Mass measurement in air" and "Mass

measurement in liquid"

The procedure of each measurements is as follows:

Measuring procedure

1. Enter the density mode that "g (gram)" is displayed and the processing indicator ( nothing on both pan and press the

RE-ZERO key to display zero.

) blinks. Place

Weight measurement mode in air

lights, blinks

From liquid density input

2. Place the sample on the pan in air.

If the weight value is stored or output, press the PRINT key to store it after a stable weight value is displayed. Press the SAMPLE key to decide the weight value in air and proceed to next step.（g lights、 blinks）

Weight in air

Note

□ If negative value or E (out of range) is displayed, the SAMPLE

key is inactive. Place the liquid to measure the density of in the beaker and sink the float.

At this time, adjust so that the float is about 10 mm below the liquid level.

Weight in liquid

3. Move the sample to the pan in liquid.

If the weight value is stored or output, press the PRINT key to store it after a stable weight value is

Enter tne volume of the float

displayed. Press the SAMPLE key to decide the weight value in liquid and proceed to next step.

（g turned off,

lights, lights）

Place the sample on the weighing pan in air

lights, blinks

Output

Move the sample from the pan in air to the pan in liquid

lights, blinks

Output

lights, blinks

Note

□ If E (out of range) is displayed, the SAMPLE key is

inactive.

4. Enter the volume of the float.

Refer to "(5) Entering the volume of the float" and

enter.

Then press the PRINT key to return to the density mode.

5. If the density value is stored or output, press the PRINT key to store it. If the other sample is measured, press the SAMPLE key , and start from measurement of weighing mode in the air. The density unit is "

6. Press the MODE key to proceed to other modes.

Display the density

lights, blinks

Output

Remove the sample

（５）Entering the volume of the float

The volume of the float that is currently set is displayed.（Factory setting is 10.00ｃｍ

Change the setting value as follows. The setting range is 0.01ｃｍ

RE-ZERO (＋)

MODE (－)key

SAMPLE key

PRINT key

CAL key

.....................

Key

.........

............

................

to 99.99ｃｍ

...

The key to set the value of the blinking digit .

The key to select the blinking digit to change the value.

Move the blinking digit.

The key to store the change and return to the density mode. Proceed to Step 5.

The key to cancel the change and return to the density mode. Proceed to Step 5.

, every 0.01ｃｍ

）

20.Password Lock Function

The password function can be specified for an authorized user by using a password stored in the

balance by manager. While the password function is used, the balance can not be weighed without inputting the correct password.

There are two login levels : administrator ( ) and user ( ~ ).

User can individually set the password for 10 people. Administrators can use all functions and settings.

User can only perform weighing.

Users cannot change function settings including initialization and clock setting.

Administrator

（AdMin.)

Operator

（oPR.1～10）

Weighing value Display・Output

Possible Possible Possible Possible Possible Possible Possible

Possible Possible Impossible Impossible Impossible Impossible Impossible

Re-zero Calibration

Change

the unit

Change the minimum display

Select function and initialization

Password: Four digits (4 x 4 x 4 x 4 = 256 outcomes) using MODE , SAMPLE , PRINT and

RE-ZERO keys.At factory setting, the password function is not used.

The management of the password function is performed in "Password function" of the Function table.

20-1 Using Password Function

The password function can be switched between "Use" or "Not used" at

"Password function ( )" of the Function Table

1. Press and hold the

SAMPLE key in the weighing mode.

ba5fnc is displayed.

2. Press the SAMPLE key several times until is displayed.

3. Press the PRINT key to display . To cancel the operation, press the CAL key.

Press and hold

Press several times

Function setting (Date/time)

4. Press the RE-ZERO key to display .

5. Press the PRINT key to display 5ure :ye5 " " where "No" is selected.

(where "No" is blinking when "No" is selected.)

6. Press the RE-ZERO to change ye5 / .

7. Display the 5ure :"y"e"5 .

(where "Yes" is blinking when "Yes" is selected.)

8. Press the PRINT key when "Yes" is selected, the password function can now be used. When turning on the balance, input the new password.

9. is displayed. To register or change the password,

proceed the next page "2". If it is not to register, press the CAL key twice to return to the weighing display.

Select No

Change Yes/No

Select Yes

20-2 Changing Password

The password can be changed at "Password ( )" of the Function Table.

1. Press and hold the SAMPLE key in the weighing mode.

ba5fnc is displayed.

2. Press the SAMPLE key several times until is displayed.

3. Press the PRINT key to display . If the

display is OFF, press RE-ZERO to switch to ON and

press the PRINT to set the displayed setting.

4. is displayed.

5. Press the PRINT key to display the login level ( ).

6. Press the SAMPLE key to change the login level / . If the password is already registered at the login level, the stability mark is lit. (changeable)

7. Press the PRINT key to display the current password.

At factory settings, the password is . (the RE-ZERO key, four times)

8. Set the new password using the following keys.

The balance will turn automatically after no operation for ten minutes.

MODE key ................. Character

SAMPLE key ............. Character 5

PRINT key ............... Character p

RE-ZERO key ........... Character

CAL key ...................... Back key

CAL key(long press) .. Delete password

9. Input four characters of the new password using these

keys.

10. The balance displays blinking when "No" is selected.

(Press the CAL key to return to the 4th character

input.)

5ure :ye5" " where "No" is

11. Press the RE-ZERO key to display 5ure:"y"e"5 where

"YES" is blinking when "YES" is selected.

12. Press the PRINT key to store the new password when

displaying 5ure :"y"e"5 . When turning on the balance, input the new password.

Note

□ If the correct password is missing, the balance can not be used.

Record the correct password after changing.

□ Passwords that have already been registered by administrator

( ) can not be registered by users ( ).

Return the 1 character

Enter the 4th character

Setting key

Change the login level

Display the current password

No key operation in ten minutes

Display off

How to delete the password（ .1～10）

1. Press and hold the CAL key to display and blink the

when setting the password.

2. Press the PRINT key to display .

3. Press the RE-ZERO to change / .

4. Press the PRINT when to delete the password.

20-3 Inputting Password When Turning On The Balance

When turning on the balance with the password function ON, the password input is displayed before

the weighing display.

1. Turn on the balance using the ON:OFF key.

2. is displayed and "

displayed.

3. Input the four characters of the correct password using the following keys.

MODE key .................. Character

SAMPLE key .............. Character 5

PRINT key .................. Character p

RE-ZERO key ........... Character

CAL key ...................... Back key

4. When the password is correct, the balance displays weighing value after full-segment display. When the password is incorrect, and the buzzer sounds three times.

of the password input is

fail is displayed

Return the 1 character

Enter the 4th character

Password correct

No key operation in ten minutes

Password incorrect

Display the weighing

20-4 Missing Password

If the correct password is missing, the balance can not be used. Contact your local A&D dealer to reset the password to factory settings.

Display off

21.Maintenance

21-1 Treatment Of The Balance

□ Clean the balance with a lint free cloth that is moistened with warm water and a mild detergent. □ Do not use organic solvents to clean the balance. □ Do not disassemble the balance. □ Use the original packing material for transportation.

22.Troubleshooting

22-1 Checking The Balance Performance And Environment

The balance is a precision instrument. When the operating environment or the operating method is inadequate, correct weighing can not be performed. Place a sample on the pan and remove it, and repeat this several times. If the balance seems to have a problem with repeatability or to perform improperly, check as described below. If improper performance persists after checking, contact the local A&D dealer for repair.

"Frequently asked questions" and their answers are also posted on our website <http://www.aandd.co.jp>.

1．Checking that the balance performs properly

□ Please check the operation of the balance by the self diagnosis function. Refer to "6-2 Self-diagnosis

Function". Fatal faults are indicated by messages.

□ Check the balance performance using an external weight. Be sure to place the weight in the center of the

weighing pan.

□ Check the balance repeatability, linearity and calibrated value using external weights with a known

value.

２．Checking that the operating environment or weighing method is proper

Operating environment

□ Is the weighing table solid enough?（Especially 1mg model） □ Is the balance level? Refer to " 2-2 Precaution "How to adjust the bubble spirit level". □ Is the operating environment free from vibration and drafts? □ Is there a strong electrical or magnetic noise source such as a motor near the balance?

Weighing method

□ Does the weighing pan rim touch anything? Is the weighing pan assembly installed correctly? □ Is the RE-ZERO key pressed before placing a sample on the weighing pan?

□ Is the sample placed in the center of the weighing pan? □ Has the balance been calibrated using the internal mass (one-touch calibration)? (Only for GX=A

series)

□ Has the balance been warmed up for one hour before weighing?

Sample and container

□ Has the sample absorbed or lost moisture due to the ambient conditions such as temperature and

humidity?

□ Has the temperature of the container been allowed to equalize to the ambient temperature? Refer to

"2-3 During Use".

□ Is the sample charged with static electricity? Refer to "2-3 During Use".

(This occurs especially with 0.001g models when the relative humidity is low.)

□ Is the sample of magnetic material such as iron? There are cautions about weighing magnetic

materials. Refer to "2-3 During Use".

22-2 Error Codes

Display Error code Description

Data abnormality of the internal sensor of the balance

□ If this error occurs during weighing and you return to

the normal weighing state after a certain period of time, there is a possibility that the data temporarily became abnormal due to static electric noise if you are measuring an easily chargeable item.

※ If the sample to be measured is charged, it is

recommended that you use a AD- 1683 static eliminator to discharge the sample before measurement in order to more accurately weigh the sample.

□ If this error continues to be displayed and can not be

resolved, the internal sensor or the circuit may be damaged. Please contact your dealer.

ＥＣ，Ｅ１１

ＥＣ，Ｅ１６

ＥＣ，Ｅ１７

ＥＣ，Ｅ２０

Stability error

The balance cannot stabilize due to an environmental problem. Check around the pan. Prevent vibration, drafts, temperature changes, static electricity and magnetic fields, from influencing the balance. Refer to "2-3 During Use".

To return to the weighing mode, press the CAL key.

Out of the setting range

The data to be stored is out of the setting range.

Malfunction of the internal memory element of the balance

If this error continues to be displayed, repair is necessary. Please contact your dealer.

Internal mass error

Applying the internal mass does not yield a change in the mass value as specified.

Confirm that there is nothing on the pan and perform the weighing operation from the beginning again.

Internal mass error

The internal mass application mechanism does not function properly. Perform the weighing operation from the beginning again.

Abnormality in the internal memory data of the balance

If this error continues to be displayed, repair is necessary. Please contact your dealer.

Abnormality in the internal memory data of the balance

If this error continues to be displayed, repair is necessary. Please contact your dealer.

Calibration weight error

The calibration weight is too heavy. Confirm the calibration mass value. Press the CAL key to return to the weighing

Display Error code Description

mode.

ＥＣ，Ｅ２１

Calibration weight error

The calibration weight is too light. Confirm the calibration mass value. Press the CAL key to return to the weighing mode.

Overload error

A sample beyond the balance weighing capacity has been placed on the pan. Remove the sample from the pan.

Weighing pan Error

The mass value is too light. Confirm that the weighing pan is properly installed and calibrate the balance.

Sample mass error

The balance can not store the sample for the counting mode or for the percent mode because it is too light.

Use a larger sample.

Alternate

Blink

（

Blink

（）

ＥＣ，Ｅ００

Unit mass error

The sample unit mass for the counting mode is too light. Storing and using it for counting will cause a counting error. Add samples to reach the specified number and press the PRINT key. Pressing the PRINT key without adding samples will shift the balance to the counting

mode. But, for accurate counting, be sure to add samples.

Clock battery error

The clock backup battery has been depleted. Press any key and set the time and date. The clock and calendar function works normally as long as the AC adapter is connected to the balance. If this error appears frequently, contact the local A&D dealer.

Power supply voltage fault

The voltage supplied from the AC adapter is abnormal. Please check if the problem is the AC adapter (TB248) supplied with the balance.

Full memory The maximum number or stored weighing values has

）

been reached. In order to store more weighing values, it is necessary to delete the data. Refer to "11.Data Memory" Full memory The stored calibration history has reached 50 instances. If more is stored, the old history will be deleted. Refer to "11.Data Memory"

Communications error

A protocol error occurred in communications. Confirm the format, baud rate and parity.

ＥＣ，Ｅ０１

Undefined command error

Display Error code Description

An undefined command was received. Confirm the command.

ＥＣ，Ｅ０２

Not ready

A received command can not be processed. Example:

The balance received a "Q" command, but not in the

weighing mode.

The balance received a "Q" command while processing

a RE-ZERO command. Adjust the delay time to transmit a command.

ＥＣ，Ｅ０３

ＥＣ，Ｅ０４

ＥＣ，Ｅ０６

ＥＣ，Ｅ０７

Timeout error

If the timeout parameter is set to "t-Up1", the balance did not receive the next character of a command within the time limit of one second. Confirm the communication.

Excess characters error

The balance received excessive characters in a command. Confirm the command.

Format error

A command includes incorrect data. Example:

The data is numerically incorrect.

Confirm the command.

Parameter setting error

The received data exceeds the range that the balance can accept. Confirm the parameter range of the command.

22-3 Other Display

When this indicator ( ) blinks, automatic self calibration is required. The indicator blinks when the balance detects changes in ambient temperature. If the balance is not used for several minutes with this indicator blinking, the balance performs automatic self calibration. The blinking period depends on the operating environment.

Advise The balance can be used while this indicator is blinking. We recommend that you

perform automatic self calibration for precision weighing.

22-4 Asking For Repair

If the balance needs service or repair, contact your local A&D dealer. The balance is a precision instrument. Use much care when handling the balance and observe the following when transporting the balance.

□ Use the original packing material for transportation.

□ Remove the weighing pan, pan support, breeze break ring and dust plate from the main unit.

23. Specififations

23-1 GX-A series 0.001g models

GX-1603A GX-1003A GX-603A GX-403A GX-303A GX-203A Weighing capacity 1620g 1100g 620g 420g 320g 220g

Maximum display 1620.084g 1100.084g 620.084g 420.084g 320.084g 220.084g

Minimum display 0.001g

Repeatability（Standard deviation） Linearity

Stabilization time （FAST setting, good environment) Sensitivity drift

Accuracy after calibration with internal mass※

0.002g(1600g)

0.001g(1000g) ±0.003g ±0.002g

1600g:Approx.1.5 sec 5g:Approx.0.8sec

±0.010g

(1000g)

(50g: Approx. 0.8 sec)

±2ppm/℃ （Automatic self calibration OFF）

0.001g

Approx.1sec

±0.010g

Operating environment Display refresh rate 5 times/second or, 10 times/second or 20 times/second Counting

mode

Percent mode

Carat

Monme

Interface

External calibration weight 50g

Weighing pan 128mm x 128mm

External dimensions

Minimum unit mass Number of samples Minimum 100% mass Minimum 100% display Weighing capacity Minimum display

Weighing capacity Minimum disiplay

8100ct 5500ct 3100ct 2100ct 1600ct 1100ct

432mom 293mom 165mom 112mom 85mom 58mom

100g

(100g

interval）

1600g

5℃ to 40℃、85%RH or less （No condensation）

0.001g

5,10,25,50 or 100 pieces

0.100g

0.01 %, 0.1 %, 1 % (Depends on the reference mass stored.)

0.05ct

0.005mom

RS-232C、USB

50g

100g

(100g

interval)

1000g

50g

100g

(100g

interval)

600g

212（w）x317（D）x93（H）

50g

100g

(100g

interval)

400g

50g 100g 200g 300g

50g 100g 200g

Power supply（AC adapter）

Weight

Power consumption: Approx. 30VA (supplied to the AC adapter ) Confirm that the adapter type is correct for the local voltage and power receptacle type.

Approx.5kg

※ The operating environment does not include excessive change of ambient temperature, humidity,

vibration, drafts, magnetic fields and static electricity. The internal mass may change due to corrosion or other damage caused by the operating environment, or due to aging.

A&D Weighing GX-203A, GX-303A, GX-403A, GX-603A, GX-1003A Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual