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Page 1

GF SERIES

GF-200/GF-300/GF-400/GF-600/GF-800/GF-1000 GF-1200/GF-2000/GF-3000/GF-4000/GF-6100 GF-6000/GF-8000

Precision Balance

INSTRUCTION MANUAL

1WMPD4000209C

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© 2008 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.

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CONTENTS

Basic Operation

1. INTRODUCTION .............................................................................................................................3

1-1 About This Manual .............................................................................................................................. 3

1-2 Features ............................................................................................................................................. 3

1-3 Compliance......................................................................................................................................... 4

2. UNPACKING THE BALANCE ........................................................................................................6

2-1 Unpacking........................................................................................................................................... 6

2-2 Installing the Balance ......................................................................................................................... 7

3. PRECAUTIONS ..............................................................................................................................8

3-1 Before Use.......................................................................................................................................... 8

3-2 During Use.......................................................................................................................................... 9

3-3 After Use........................................................................................................................................... 10

3-4 Power Supply ................................................................................................................................... 10

4. DISPLAY SYMBOLS AND KEY OPERATION..............................................................................11

5. WEIGHING UNITS ........................................................................................................................12

5-1 Units.................................................................................................................................................. 12

5-2 Storing Units ..................................................................................................................................... 15

Adapting to the Environment

6. WEIGHING ....................................................................................................................................17

6-1 Basic Operation (Gram Mode) ......................................................................................................... 17

6-2 Counting Mode (PC)......................................................................................................................... 18

6-3 Percent Mode (Pct)........................................................................................................................... 20

7. RESPONSE ADJUSTMENT / SELF CHECK FUNCTION............................................................21

7-1 Manual Response Adjustment.......................................................................................................... 21

7-2 Self Check Function ......................................................................................................................... 22

8. CALIBRATION ..............................................................................................................................23

8-1 Calibration Modes............................................................................................................................. 23

8-2 Calibration Using an External Weight............................................................................................... 24

8-3 Calibration Test Using an External Weight ....................................................................................... 26

Functions

9. FUNCTION SWITCH AND INITIALIZATION.................................................................................28

9-1 Permit or Inhibit ................................................................................................................................ 28

9-2 Initializing the Balance...................................................................................................................... 29

10. FUNCTION TABLE .....................................................................................................................30

10-1 Structure and Sequence of the Function Table .............................................................................. 30

10-2 Display and Keys............................................................................................................................ 30

10-3 Details of the Function Table .......................................................................................................... 31

10-4 Description of the Class “Environment, Display”............................................................................34

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10-5 Description of the Item “Data output mode” ................................................................................... 36

10-6 Description of the Item “Data format” ............................................................................................. 37

10-7 Description of the Data Format Added to the Weighing Data ............................................................... 39

10-8 Data Format Examples................................................................................................................... 40

10-9 Comparator Function...................................................................................................................... 42

11. ID NUMBER AND GLP REPORT................................................................................................44

11-1 Setting the ID Number .................................................................................................................... 44

11-2 GLP Report ..................................................................................................................................... 44

12. DATA MEMORY..........................................................................................................................47

12-1 Notes on Using Data Memory ........................................................................................................ 47

12-2 Memory for Weighing Data............................................................................................................. 48

12-3 Memory for Unit Mass in the Counting Mode ................................................................................. 51

13. UNDERHOOK.............................................................................................................................52

14. PROGRAMMABLE-UNIT ...........................................................................................................53

15. DENSITY MEASUREMENT........................................................................................................54

RS-232C Serial Interface

16. RS-232C SERIAL INTERFACE / EXTERNAL INPUT ................................................................57

17. CONNECTION TO PERIPHERAL EQUIPMENT ........................................................................59

17-1 Connection to the AD-8121B Printer .............................................................................................. 59

17-2 Connection to a Computer.............................................................................................................. 59

17-3 Using Windows Communication Tools (WinCT) ............................................................................. 60

18. COMMANDS...............................................................................................................................62

18-1 Command List................................................................................................................................. 62

18-2 Acknowledge Code and Error Codes ............................................................................................. 63

18-3 Command Examples ...................................................................................................................... 64

18-4 Control Using CTS and RTS .......................................................................................................... 67

18-5 Settings Related to RS-232C ......................................................................................................... 67

Maintenance

19. MAINTENANCE..........................................................................................................................68

20. TROUBLESHOOTING ................................................................................................................68

20-1 Checking the Balance Performance and Environment................................................................... 68

20-2 Error Codes .................................................................................................................................... 69

20-3 Asking For Repair ........................................................................................................................... 71

21. SPECIFICATIONS.......................................................................................................................72

22. OPTIONS ....................................................................................................................................74

23. EXTERNAL DIMENSIONS .........................................................................................................77

24. TERMS/INDEX............................................................................................................................78

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1. INTRODUCTION

This manual describes how the GF 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.

1-1 About This Manual

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.

RS-232C serial interface................. Describes the interface which transmits data and controls the

balance.

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

specifications and options.

1-2 Features

 Stabilization time of one second. When FAST is selected for the response rate, a stabilization

time of one second, to read a displayed value after a sample is placed on the pan, has been achieved.

 Self Check Function, provided to self-check the balance.

 Data Memory Function, storing weighing data or unit mass in the counting mode. (About

weighing data, 40 sets of data can be stored.) Interval Memory Mode is provided to weigh a sample and store the weighing data periodically.

 Good Laboratory Practice (GLP) data output using the standard RS-232C serial interface.

 Windows Communication Tools (WinCT), allows easy communication with Windows 95/98.

Windows is a registered trademark of the Microsoft Corporation.

 Comparator Indicators, displaying the comparison results.

 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.

 Density Mode, for calculating the density of a solid.

 Multiple Weighing Units, with most of the common units used around the world.

 Reference Card, provided for a quick reference to the balance operation.

 Breeze Break, provided for the GF-200/300/400/600/800/1000, for more accurate weighing.

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1-3 Compliance

Compliance with FCC Rules

Please note that this device generates, uses and can radiate radio frequency energy. This device 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 this device 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 Council Directives

This device features radio interference suppression in compliance with valid

EC Regulation 89/336/EEC.

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Page 8

2. UNPACKING THE BALANCE

2-1 Unpacking

 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.

GF-200/300/400/600/800/1000

How to assemble the breeze break (Only for GF-200/300/400/600/800/1000)

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

Bubble spirit level

Display

Weighing pan

Main unit

RS-232C serial interface (External input terminal)

Main unit rear side

Reference card

Windows communication

Keys

Leveling foot

Pan support receptor

tools (WinCT)

AC adapter

Note

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

AC adapter

ID label

Grounding terminal

AC adapter plug

AC adapter jack

Main unit cover

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GF-1200/2000/3000/4000/6100/6000/8000

Breeze ring

Display

Bubble spirit level

Reference card

Weighing pan

Keys

Leveling foot

Pan support receptor

AC adapter jack

AC adapter plug

Main unit

RS-232C serial interface (External input terminal)

Main unit rear side

Grounding terminal

Windows communication tools (WinCT)

Note

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

AC adapter

AC adapter ID label

Main unit cover

2-2 Installing the Balance

Install the balance as follows:

1. Refer to “3. PRECAUTIONS” for installing the balance. Place the balance on a solid weighing table.

2. GF-200/300/400/600/800/1000

Assemble the breeze break on the balance as shown in the illustration on page 6.

GF-1200/2000/3000/4000/6100/6000/8000 Assemble the breeze ring and weighing pan on 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.

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3. PRECAUTIONS

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

following:

3-1 Before Use

 Install the balance in an environment where the

temperature and humidity are not excessive. The best operating temperature is about 20°C / 68°F at about 50% relative humidity.

 Install the balance where it is not exposed to direct

sunlight and it is not affected by heaters or air conditioners.

 Install the balance where it is free of dust.

 Install the balance away from equipment which

produces magnetic fields.

 Install the balance in a stable place avoiding vibration

and shock. Corners of rooms on the first floor are best, as they are less prone to vibration.

 The weighing table should be solid and free from

vibration, drafts and as level as possible.

 Level the balance by adjusting the leveling feet and

confirm it using the bubble spirit level.

 Ensure a stable power source when using the AC

adapter.

 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.

Caution

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

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3-2 During Use

 Discharge static electricity from the material to be

weighed (hereinafter referred to as sample). When a

sample could have a static charge, the weighing data is

influenced. Ground the balance and try the following:

Eliminate the static electricity by AD-1683 as an accessory. Or try to keep the ambient humidity above 45%RH. Or use a metal shield case. Or wipe a charged plastic sample with the wet cloth.

 This balance uses a strong magnet as part of the

balance assembly, so please use caution when weighing magnetic materials such as iron. If there is a problem, use the underhook on the bottom of the balance to suspend the material away from the influence of the magnet.

 Eliminate 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.

 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.

 Calibrate the balance periodically so as 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.

 The breeze break (GF-200/300/400/600/800/1000 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, AD-1683, or apply an anti-static spray.

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3-3 After Use

 Avoid mechanical shock to the balance.

 Do not disassemble the balance. Contact the local A&D dealer if the balance needs service or

repair.

 Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that

is moistened with warm water and a mild detergent.

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

spills and excessive dust.

3-4 Power Supply

 When the AC adapter is connected, the balance is in the standby mode if the standby indicator

is on (refer to “4. DISPLAY SYMBOLS AND KEY OPERATION”). This is a normal state and does not harm the balance. For accurate weighing, warm up the balance for at least 30 minutes before use.

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4. DISPLAY SYMBOLS AND KEY OPERATION

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”

Display symbols

・

Displays data stored in memory

・

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

Processing indicator

Stabilization indicator

Standby indicator

Data number of the data currently displayed

Processing indicator

(Capacity indicator)

Weighing data or stored data

Blinking indicators

Response indicators

(Displayed for about 30 seconds when weighing starts.)

Animal mode indicator

Comparator indicators

Units

Interval memory standby indicator

Interval memory

Each key, when pressed or when pressed and held, functions as follows:

Key When pressed When pressed and held

Turns the display ON or OFF. The standby indicator is displayed when the display is

turned off. The weighing mode is enabled when the display is turned on. This key is available anytime. Pressing the key during operation will interrupt the

operation and turn the display OFF.

active indicator

No function. Enters the calibration mode.

In the weighing mode, turns the minimum weighing value ON or OFF.

In the counting or percent mode, enters the sample storing mode.

Switches the weighing units stored in the function table. Refer to “5. WEIGHING UNITS”.

Stores the weighing data in memory or outputs to a printer or personal computer using the RS-232C interface (Factory setting), depending on the function table settings.

Sets the display to zero.

Enters the function table mode. Refer to “10. FUNCTION TABLE”.

Enters the response adjustment/self check mode.

No function at the factory setting

By changing the function table: Outputs “Title block” and “End block” for GLP report. Displays the data memory menu.

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5. WEIGHING UNITS

5-1 Units

With the GF series balance, the following weighing units and weighing modes are available:

Counting mode

Percent mode

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

Pct OZ

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

OZt

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

Programmable-unit (No unit displayed. For details, refer to "14. PROGRAMMABLE-UNIT".)

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.

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

dwt

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 PC

Percent mode Pct

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 mm 3.75 g

Pennyweight dwt 1.55517384 g

Grain (UK) GN 0.06479891 g

Tael (HK general, Singapore) 37.7994 g

Tael (HK jewelry) 37.429 g

Tael (Taiwan) 37.5 g

Tael (China)

31.25 g

Tola (India) t 11.6638038 g

Messghal MS 4.6875 g

Density mode (See note below)

is used to

show the density.

Programmable-unit (Multi-unit) Mlt

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

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The tables below indicate the weighing capacity and the minimum display for each unit, depending

on the balance model.

Unit

GF-200 GF-300 GF-400 GF-600 GF-800 GF-1000

Gram

Ounce (Avoir)

Pound

Pound/Ounce 0Lb 7.41oz

Troy Ounce

Metric Carat

Momme

Pennyweight

Grain (UK)

Tael (HK general,

Singapore)

Tael (HK jewelry)

Tael (Taiwan)

Tael (China)

Tola (India)

Messghal

210 310 410 610 810 1100

7.40 10.93 14.46 21.51 28.57 38.80

0.462 0.683 0.903 1.344 1.785 2.425

0Lb 10.93oz 0Lb 14.46oz 1Lb 5.52oz 1Lb 12.57oz 2Lb 6.80oz

6.75 9.96 13.18 19.61 26.04 35.36

1050 1550 2050 3050 4050 5500

56.0 82.6 109.3 162.6 216.0 293.3

135 199 263 392 520 707

3240 4784 6327 9413 12500 16975

5.55 8.20 10.84 16.13 21.42 29.10

5.61 8.28 10.95 16.29 21.64 29.38

5.60 8.26 10.93 16.26 21.60 29.33

6.72 9.92 13.12 19.52 25.92 35.20

18.0 26.5 35.1 52.2 69.4 94.3

44.8 66.1 87.4 130.1 172.8 234.6

Capacity

Minimum

display

0.00005

0.000005

0.00005

0.001

0.01oz

0.005

0.0005

0.001

0.02

0.0001

0.0005

Capacity

Unit

GF-1200 GF-2000 GF-3000 GF-4000 GF-6100

Gram 1210 2100 3100 4100 6100 0.01

Ounce (Avoir) 42.6 74.0 109.3 144.6 215.1 0.0005

Pound 2.66 4.62 6.83 9.03 13.44 0.00005

Pound/Ounce

Troy Ounce 38.9 67.5 99.6 131.8 196.1 0.0005

Metric Carat 6050 10500 15500 20500 30500 0.05

Momme 322 560 826 1093 1626 0.005

Pennyweight 778 1350 1993 2636 3922 0.01

Grain (UK) 18673 32408 47840 63272 94137 0.2

Tael (HK

general,

Singapore)

Tael (HK

jewelry)

Tael (Taiwan) 32.2 56.0 82.6 109.3 162.6 0.0005

Tael (China) 38.7 67.2 99.2 131.2 195.2 0.0005

Tola (India) 103 180 265 351 522 0.001

Messghal 258 448 661 874 1301 0.005

2Lb 10.68oz 4Lb 10.08oz 6Lb 13.35oz 9Lb 0.62oz 13Lb 7.17oz

32.0 55.5 82.0 108.4 161.3 0.0005

32.3 56.1 82.8 109.5 162.9 0.0005

Minimum

display

0.01oz

Page 16

Capacity

Unit

GF-6000 GF-8000

Gram 6100 8100 0.1

Ounce (Avoir) 215 285 0.005

Pound 13.4 17.8 0.0005

Pound/Ounce 13Lb 7.17oz 17Lb 13.72oz 0.01oz

Troy Ounce 196 260 0.005

Metric Carat 30500 40500 0.5

Momme 1626 2160 0.05

Pennyweight 3922 5208 0.1

Grain (UK) 94136 125002 2

Tael (HK

general,

Singapore)

Tael (HK

jewelry)

Tael (Taiwan) 162 216 0.005

Tael (China) 195 259 0.005

Tola (India) 522 694 0.01

Messghal 1301 1728 0.05

161 214 0.005

162 216 0.005

Minimum

display

Page 17

5-2 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

Unit .

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.

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.

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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 pC .

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→pc).

Press and hold

Press several times

Specify

Select

Specify

Store

Page 19

6. WEIGHING

6-1 Basic Operation (Gram Mode)

1 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.)

2 Place a sample on the pan or in the container.

3 Wait for the stabilization indicator

Read the value.

4 Remove the sample and container from the pan.

Notes

To use other units, press the MODE key and select an

appropriate unit.

Press the SAMPLE key to turn ON or OFF the minimum

weighing value.

The weighing data can be stored in memory. 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.

Weighing pan

Container

Sample

Remove the sample

(Display off)

Weighing pan

Container

Page 20

6-2 Counting Mode (PC)

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. The GF series balance is equipped with the Automatic Counting Accuracy Improvement (ACAI) function to improve the counting accuracy.

Notes

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 pC (counting mode).

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 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.

e.g.: 25 0

pC is displayed if 25 is selected in step 3.

Weighing pan

Container

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

example, 25 pieces.

6 Wait for the stabilization indicator

Press the PRINT key to calculate and store the unit mass. The balance displays 25 pC (counting mode) and is set to count samples with this unit mass. (The sample unit mass is stored in non-volatile memory, and is maintained even if the AC adapter is removed.) To improve the accuracy of the unit mass, proceed to step 8.

to be displayed.

Sample (25 pieces)

Page 21

Notes

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 .

If the balance judges that the mass of the samples is too

light to aquire accurate weighing, it displays an error requiring the addition of more samples to the specified number. In the example above, 150- requiring 25 more samples. Add 25 samples and press the PRINT key. When the unit mass is stored correctly, the balance proceeds to the counting mode.

pC appears,

Counting operation

7 Place the samples to be counted on the pan.

Note

Up to 20 unit masses can be stored in memory for the multiple sample. For details, refer to “12. DATA MEMORY”. The unit mass data in memory can be recalled or changed using commands from the computer.

The counting result

Place sample to be counted

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 proceeds.

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.

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.

11 Remove all the samples used in ACAI and proceed with the counting operation using the

improved unit mass.

Page 22

6-3 Percent Mode (Pct)

This is the mode to display the weight value in percentage compared to a 100% reference mass and

is used for target weighing or checking the sample variable.

Selecting the percent mode

1 Press the MODE key to select pct (percent mode). If the

percent mode can not be selected, refer to “5. WEIGHING UNITS”.

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 RE-ZERO key to cancel the weight (tare). The balance displays 100 0 pct .

Weighing pan

Container

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 pct . (The decimal point position depends on the reference value. The reference mass is stored in non-volatile memory, and is maintained even if the AC adapter is removed.)

Note

If the balance judges that the mass of the sample is too light to be used as a reference, it displays lo .

6 Remove the sample.

Reading the percentage

7 Place a sample to be compared to the reference mass on

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

Sample (100%)

Place sample to be weighed

Weighing result compared to 100% reference mass

Page 23

7. RESPONSE ADJUSTMENT / SELF CHECK FUNCTION

7-1 Manual Response Adjustment

The function has three rates as follows:

Changing the response rate changes the display refresh rate.

Indicator Parameter Response characteristic Display refresh rate

FAST Cond 0 MID. Cond 1 SLOW Cond 2

Note

To set the refresh rate of 5 times/second when the response rate is FAST or 10 times/second when the response rate is MID. or SLOW, change the “Display refresh rate (5pd)” parameter of “Environment, Display (ba5fnc)” in the function table. For details, refer to “10. FUNCTION TABLE”.

Fast response, Sensitive value

Slow response, Stable value

If the response rate is changed as follows: MID. or SLOW FAST =10 times/second FAST MID. or SLOW = 5 times/second

Response indicators

To increase the response rate, or to obtain a more stable display, perform the following:

Operation

1 Press and hold the MODE key until RESPONSE is

displayed, then release the key.

Press the MODE key again quickly.

2 Press the MODE key to select a rate of the response

adjustment. Either FAST, MID. or SLOW can be selected.

3 After a few seconds of inactivity the balance displays

eend . Then, it returns to the weighing mode and

displays the updated response indicator. The response indicator remains displayed for about 30 seconds.

Note

Press and hold the key

Release the key and press again

Each pressing switches the indicators

After a while

The response adjustment can be changed at “Condition (Cond)” of “Environment, Display (ba5fnc)” in the function table. For details, refer to “10. FUNCTION TABLE”.

Page 24

7-2 Self Check Function

This function self-checks the internal performance of the balance.

Operation

1 Press and hold the MODE key until RESPONSE is

displayed, then release the key.

2 The balance automatically starts to check its internal

performance

3 After self-check, the balance displays the checking

result and returns to the weighing mode.

e.g. “ OK ”

The example above indicates that the result of the self

check is good.

Note

If improper performance is found in the self check, the balance displays CH no. Contact the local A&D dealer for repair.

Press and hold the key

Release the key

Displays the result.

Page 25

8. CALIBRATION

8-1 Calibration Modes

The GF series balance has the following two modes.

 Calibration using an external weight  Calibration test using an external weight (Calibration test does not perform calibration.)

Terms

The following terms are defined as follows: External weight = A weight that you have. Referred to as a calibration weight when used for

calibration. Calibration weight = A weight used for calibration Target weight = An external weight used for calibration test

Caution

 Calibration adjusts the balance for accurate weighing. Besides periodic calibration and before each use, perform calibration when:

• the balance is installed for the first time.

• the balance has been moved.

• the ambient environment has changed.

 Do not allow vibration or drafts to affect the balance during calibration.

 To output the data for GLP using the RS-232C interface, set “GLP output ( info )” of “Data

output ( dout )”. For details, refer to “10. FUNCTION TABLE”.

 Calibration test is available only when “GLP output ( info )” of “Data output ( dout )” is set to “1” or “2”,

Caution on using an external weight

 The accuracy of an external weight can influence the accuracy of weighing. Select an

appropriate weight as listed below:

Model Usable calibration weight Adjustable range

GF-200 200 g, 100 g GF-300 300 g, 200 g, 100 g GF-400 400 g, 300 g, 200 g GF-600 600 g, 500 g, 400 g, 300 g, 200 g GF-800 800 g, 700 g, 600 g, 500 g, 400 g, 300 g, 200 g GF-1000 1000 g, 900 g, 800 g, 700 g, 600 g, 500 g, 400 g, 300 g, 200 g GF-1200 1000 g, 500 g GF-2000 2000 g, 1000 g GF-3000 3000 g, 2000 g, 1000 g GF-4000 4000 g, 3000 g, 2000 g GF-6100 6000 g, 5000 g, 4000 g, 3000 g, 2000 g GF-6000 6000 g, 5000 g, 4000 g, 3000 g, 2000 g GF-8000 8000 g, 7000 g, 6000 g, 5000 g, 4000 g, 3000 g, 2000 g

The calibration weight in bold type: factory setting The calibration weight value can be adjusted within the range above.

-0.015 g to +0.015 g

-0.15 g to +0.15 g

-1.5 g to +1.5 g

Display

 This indicator means “the balance is measuring calibration data”.

Do not allow vibration or drafts to affect the balance while this indicator is displayed.

Page 26

8-2 Calibration Using an External Weight

This function calibrates the balance using an external weight.

Operation

1 Connect the AC adapter and warm up the balance

for at least 30 minutes with nothing on the pan.

2 Press and hold the CAL key until Calout is

displayed, and then release the key.

Press and hold the key

3 The balance displays Cal 0 .

 If you want to change the calibration weight (a

list of usable weights is shown on page 23), press the SAMPLE key and proceed to step 4.

 If you use the calibration weight value stored in

the balance, proceed to step 5.

4 Specify the calibration weight value as follows:

SAMPLE key To switch the display

condition to: “All of the segments blinking” (calibration weight selection mode) or “The last two digits blinking” (value adjustment mode).

RE-ZERO key To select the calibration

weight or adjust the value. In the value adjustment mode,

-15 digits appear after +15 digits.

Release the key

Select a weight

To n e xt p ag e

e.g. Calibration weight value

1000.12 g

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 .

Note

Digit, when used for the GF series balance, indicates a unit of minimum weighing value.

Page 27

5 Confirm that there is nothing on the pan and press

the PRINT key. The balance measures the zero point. Do not allow vibration or drafts to affect the balance.

The balance displays the calibration weight value.

From previous page

6 Place the displayed calibration weight on the pan

and press the PRINT key. The balance measures the calibration weight. Do not allow vibration or drafts to affect the balance.

7 The balance displays end . Remove the weight

from the pan.

8 If the “GLP output (info)” parameter, of the

function table, is set to “1” or “2”, the balance displays glp and outputs “Calibration Report” using the RS-232C interface or stores the data in memory. For details on the calibration report format, refer to “11-2 GLP Report”.

9 The balance will automatically return to the

weighing mode.

10 Place the calibration weight on the pan and confirm

that the value displayed is within ±2 digits of the specified value. If it is not within the range, check the ambient conditions such as breeze and vibration, also check the weighing pan. Then, repeat steps 1 to 10.

Calibration weight

GLP output

Page 28

8-3 Calibration Test Using an External Weight

This function tests the balance weighing accuracy using an external mass and outputs the result. This is available only when the “GLP output (info)” parameter is set to “1” or “2”. (Calibration test does not perform calibration.)

Operation

1 Connect the AC adapter and warm up the balance

for at least 30 minutes with nothing on the pan.

2 Press and hold the CAL key until CCout is

displayed, then release the key.

Press and hold the key

3 The balance displays CC 0 .

 If you want to change the target weight (a list of

usable weights is shown on page 23), press the SAMPLE key and proceed to step 4.

 If you use the target weight value stored in the

balance, proceed to step 5.

4 Specify the target weight value as follows:

SAMPLE key To switch the display

condition to: “All of the segments blinking” (target weight selection mode) or “The last two digits blinking” (value adjustment mode).

RE-ZERO key To select the target weight or

adjust the value. In the value adjustment mode, -15 digits appear after +15 digits.

PRINT key To store the new weight

value. Even if the AC adapter is removed, the data is maintained in non-volatile memory.

Release the key

Select a weight

e.g. Target weight value

1000.12 g

To next page

CAL key To cancel the operation and

return to CC 0 .

Note

Digit, when used for the GF series balance, indicates a unit of minimum weighing value.

Page 29

5 Confirm that there is nothing on the pan and press the

PRINT key. The balance measures the zero point and displays the measured value. Do not allow vibration or drafts to affect the balance.

The balance displays the target weight value.

From previous page

6 Place the displayed target weight on the pan and press

the PRINT key. The balance measures the target weight and displays the measured value. Do not allow vibration or drafts to affect the balance.

7 The balance displays end . Remove the weight from the

pan.

8 The balance displays glp and outputs “Calibration

Test Report” using the RS-232C interface or stores the calibration test data in memory. For details on the calibration test report format, refer to “11-2 GLP Report”.

9 The balance will automatically return to the weighing

mode.

Target weight

GLP output

Page 30

9. FUNCTION SWITCH AND INITIALIZATION

9-1 Permit or Inhibit

The balance stores parameters that must not be changed unintentionally (e.g. Calibration data for accurate weighing, Data for adapting to the operating environment, Control data for the RS-232C interface). There are five switches for the purpose of protecting these parameters. Each switch can select either “permit” or “inhibit”. “Inhibit” protects parameters against unintentional operations.

Switches

Operation

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

2 While pressing and holding the PRINT key and the SAMPLE key, press the ON:OFF key.

The balance displays p5 .

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

4 Set the switches using the following keys.

SAMPLE key To select the switch to change the parameter.

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

0:To inhibit changes. 1:To permit changes

PRINT key To store the new parameter and return to the weighing mode.

CAL key To cancel the operation ( Clr is displayed.) To return to the

weighing mode, press the CAL key once again.

Page 31

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

 Liquid density and temperature in the density mode

Note

Be sure to calibrate the balance after initialization.

Operation

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

2 While pressing and holding the PRINT key and the

SAMPLE key, press the ON:OFF key. The balance displays p5 .

3 Press the SAMPLE key to display Clr .

4 Press the PRINT key. To cancel this operation, press the CAL key.

5 Press the RE-ZERO key.

With these keys held down

Press the key

6 Press the PRINT key to initialize the balance.

The balance will automatically return to the weighing

mode.

Page 32

10. FUNCTION TABLE

The function table reads or rewrites the parameters that are stored in the balance. These parameters are stored in non-volatile memory, and are maintained even if the AC adapter is removed..

10-1 Structure and Sequence of the Function Table

The function table menu consists of two layers. The first layer is the “Class” and the second layer is the “Item”. Each item stores a parameter.

Example

This example sets “Stores weighing data” for “Data memory” and “Every 1 minute” for “Interval time”.

10-2 Display and Keys

Display/Key Description

The symbol “ ” indicates that the parameter displayed is in effect.

When pressed and held in the weighing mode, enters the function table mode.

Selects the class or item in the function table mode.

Changes 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.

Page 33

10-3 Details of the Function Table

Class Item

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

poff

Auto display-OFF

g5i

Capacity indicator

Cp fnc

Comparator

Comparator mode

Cp in

Input method

Cp Hi

Upper limit

Cp lo

Lower limit

Parameter

Fast response, sensitive value

0 1

Slow response, stable value

Stable when within 1 digit

0 1

Stable when within 3 digits

OFF

0 1

OFF

Normal

Strong

Ver y strong

5 times/second

10 times/second

Point (.)

Comma (,)

OFF

ON (10 minutes)

OFF

No comparison

Comparison, excluding "near zero"

when stable value or overloaded

Comparison, including "near zero"

when stable value or overloaded

Continuous comparison,

excluding "near zero"

Continuous comparison,

including "near zero"

Digital input, upper/lower limits

Weighing input, upper/lower

limits

Digital input, reference value

Weighing input, reference value

See "10-9 Comparator Function"

Description

FAST

With " averaging time.

MID.

SLOW

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

stabilization range. Holds the display when

stable in animal mode. With "

Keeps zero display by tracking zero drift.

Period to refresh the display

Decimal point format

Turns on the weighing mode display when AC adapter is connected.

Turns off the display after 10 minutes of inactivity.

Capacity indicator. Zero: Maximum capacity:

Cp Hi,Cp lo can be

selected.

Cp ref,Cp l t can be

selected.

Displayed when or

Hold 1

", ANIMAL turns on.

Hold 1

Cpin 1

", sets the

100

Cpin 0

is selected.

Cp ref

Reference value

Cp lmt

Tolerance

See "10-9 Comparator Function"

Factory setting

Displayed when

Cpin 3

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

Cpin 2

is selected.

Page 34

Data output

Class Item

dout

prt

Data output mode

ap-p

Auto print polarity

ap-b

Auto print difference

data

Data memory

int

Interval time

d-no

Data number output

5-id

ID number output

pU5e

Data output pause

at-f

Auto feed

info

GLP output

Parameter

0 1 2 0 1 2 0 1 2 0 1 2 3 4 5 6 7 8 0 1 0 1 0 1 0 1

Description

Key mode

Auto print mode A

(Reference = zero)

Auto print mode B

(Reference = last stable value)

Stream mode /

Interval memory mode

Plus only

Minus only

Both

10 digits

100 digits

1000 digits

Not used

Stores unit mass in counting mode

Stores weighing data

Every measurement

Every 2 seconds

Every 5 seconds

Every 10 seconds

Every 30 seconds

Every 1 minute

Every 2 minutes

Every 5 minutes

Every 10 minutes

No output

Output

No output

Output

No pause

Pause (1.6 seconds)

Not used

Used

No output

AD-8121 format

Accepts the PRINT key only

when the display is stable.

Outputs data when the

dispaly is stable and

conditions of

and the reference value are

met.

With

data 0

continuously; with

uses interval memory.

Displayed value>Reference

Displayed value<Reference

Regardless of displayed value

Difference between

reference value and

displayed value

Related items:

d-no

Interval time in the interval

memory mode

(with

prt 3, data 2

See "12. DATA MEMORY".

Selects whether or not the ID number is output.

Selects the data output interval.

Selects whether or not auto feed is performed.

Selects GLP output method.

ap-p, ap-b

, outputs data

data 2

prt, int,

)

ar-d

Zero after output

General data format

Not used

Used

Adjusts zero automatically

after data is output.

Factory setting

Page 35

Class Item

5if

Serial interface

bp5

Baud rate

btpr

Data bit, parity bit

Crlf

Te rm in at o r

type

Data format

t-Up

d5 fnc

Density function

mlt

Programmable-unit (Multi-unit)

Unit

ID number setting

Timeout

erCd

AK, Error code

Ct5

CTS, RTS control

ldin

Liquid density input

aram-

eter

*600 bps

1200 bps

2400 bps

4800 bps

9600 bps

7 bits, even

7 bits, odd

8 bits, none

CR LF

A&D standard format

DP format

KF format

MT format

NU format

CSV format

No limit

1 second

No output

Output

Not used

Used

Water temperature

Liquid density

Sets an arbitrary coefficient. See "14. PROGRAMMABLE-UNIT".

See "5. WEIGHING UNITS".

See "11. ID NUMBER AND GLP REPORT".

Factory setting

Description

CR: ASCII code 0Dh

LF: ASCII code 0Ah

See "10-6 Description of

Item "Data Format".

Selects the wait time to

receive a command.

AK: ASCII code 06h

Controls CTS and RTS.

Available only when density mode is selected. See "15. DENSITY MEASUREMENT".

Available only when programmable-unit mode is selected.

Caution

The balance may not transmit the data completely at the specified refresh rate, depending on the baud rate or data added to the weighing data such as ID number.

Page 36

10-4 Description of the Class “Environment, Display”

Condition ( Cond )

Cond 0 This parameter is for sensitive response to the fluctuation of a weight value.

Used for powder target weighing, weighing a very light sample or when quick response weighing is required.

After setting, the balance displays FAST.

Cond 2 This parameter is for stable weighing with slow response. Used to prevent a

weight value from drifting due to vibration or drafts. After setting, the balance displays SLOW.

Note

With “Hold function (Hold)” set to “ON (1)”, this item is used to set the averaging time.

Stability band width ( 5t-b )

This item controls the width to regard a weight 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. The parameter influences the “Auto print mode”

5t-b 0 This parameter is for sensitive response of the stabilization indicator. Used

for exact weighing.

5t-b 2 This parameter ignores slight fluctuation of a weight value. Used to prevent

a weight value from drifting due to vibration or drafts.

Note

With “Hold function (Hold)” set to “ON (1)”, this item is used to set the stabilization range.

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.

Weighing range GF-200/300/400/600/800/1000 0. 200 g or over GF-1200/2000/3000/4000/6100 2.00 g or over GF-6000/8000 10.0 g or over

The averaging time and stabilization range are set in “Condition (Cond)” and “Stability band width (5t-b)”.

Averaging time Stabilization range

Cond 0 5t-b 0 About ±6% of the weight value Cond 1 5t-b 1 About ±12% of the weight value Cond 2

2 seconds Faster 4 seconds | 8 seconds More accurate

Note The Animal Weighing Bowl Kit (GX-12) is available as an option for all models except GF-200.

5t-b 2 About ±25% of the weight value

Page 37

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.

Note

Digit, when used for the GF series balance, indicates a unit of minimum weighing value.

trc 0 The tracking function is not used. Used for weighing a very light sample. trc 1 The tracking function is used. Normal zero tracking. trc 2 The tracking function is used. Strong zero tracking. trc 3 The tracking function is used. Very strong zero tracking.

Display refresh rate ( 5pd )

Period to refresh the display. This parameter influences “Baud rate”, “Data output pause” and “Stream mode”.

Note

This item is selected automatically in the manual response adjustment.

Decimal point ( pnt )

The decimal point format can be selected.

Auto display-ON ( p-on )

When the AC adapter is connected, 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. 30-minute warm up is necessary for accurate weighing.

Auto display-OFF ( poff )

When the AC adapter is connected and no operation is performed (inactivity state) for 10 minutes, the display is automatically turned off and the standby indicator is illuminated.

Capacity indicator ( g5i )

In the weighing mode, the indicator displays the weighing data relative to the weighing capacity in percentage. (Zero = 0%, maximum capacity = 100%) When the “Data memory ( data )” parameter is set to “1” (to store unit mass in the counting mode) or to “2” (to store the weighing data), the indicator displays the information stored in memory, such as the amount of memory data or data number.

Page 38

10-5 Description of the Item “Data output mode”

The parameter setting of the “Data output mode ( prt )” applies to the performance when the “Data memory ( data )” parameter is set to “2” (to store the weighing data) and when the data is transmitted using the RS-232C interface.

Key mode

When the PRINT key is pressed with the stabilization indictor turned on, the balance outputs or stores the weighing data and the display blinks one time.

Required setting dout

prt 0 Key mode

Auto print modes A and B

When the displayed value is stable and the conditions of “Auto print polarity”, “Auto print difference” and reference value are met, the balance outputs or stores the weighing data. When the PRINT key is pressed with the stabilization indictor turned on, the balance outputs or stores the data and the display blinks one time.

Mode A: Required setting dout prt 1 Auto print mode A (reference = zero)

dout ap-p Auto print polarity dout ap-b Auto print difference

Example “For weighing the added sample each time a sample is added, with

“ar-d” set to “1” (to adjust zero after the data is output).”

Mode B: Required setting dout prt 2 Auto print mode B (reference = last stable value)

dout ap-p Auto print polarity dout ap-b Auto print difference

Example “For weighing while a sample is added.”

Stream mode

The balance outputs the weighing data continuously regardless of the display condition. The display does not blink in this mode. This mode is not available and the interval memory mode is used when the “Data memory ( data )” parameter is set to “2” (to store the weighing data).

Required setting dout prt 3 Stream mode dout data 0 Data memory function is not used. ba5fnc 5pd Display refresh rate 5if bp5 Baud rate

Example “For monitoring data on a computer”

Caution

The balance may not transmit the data completely at the specified refresh rate, depending on the baud rate or data added to the weighing data such as time, date and ID number.

Page 39

Interval memory mode

The weighing data is periodically stored in memory.

Required setting dout prt 3 Interval memory mode dout data 2 Data memory function is used. Stores weighing data. dout int Interval time

Example “For periodical weighing without a computer command and to output

all of the data, to a computer, at one time”

10-6 Description of the Item “Data format”

A&D standard format 5if type 0

This format is used when the peripheral equipment can receive the A&D format. If an AD-8121B is used, set the printer to MODE 1 or 2.

z This format consists of fifteen characters excluding the terminator.

z A header of two characters indicates the balance condition.

z The polarity sign is placed before the data with the leading zeros. If the data is zero, the plus

sign is used.

z The unit, consisting of three characters, follows the data.

ST,+00012.7811g

DataHeader

Unit

Ter mi na to r

DP (Dump print) format 5if type 1

This format is used when the peripheral equipment can not receive the A&D format. If an AD-8121B is used, set the printer to MODE 3.

z This format consists of sixteen characters excluding the terminator.

z A header of two characters indicates the balance condition. No overload header is used.

z The polarity sign is placed before the data, with spaces in place of leading zeros, if the data is

not zero or overloaded.

z The unit, consisting of three characters, follows the data.

Page 40

KF format 5if type 2

This is the Karl-Fischer moisture meter format and is used when the peripheral equipment can only communicate using this format.

z This format consists of fourteen characters excluding the terminator. z This format has no header characters. z The polarity sign is placed befor e the data, with spaces in place of leading zeros, if the data is

not zero or overloaded.

z This format outputs the unit only for a stable value.

+ 12.78 g

Data

Unit

CRL

Terminator

MT format 5if type 3

z A header of two characters indicates the balance condition. z The polarity sign is used only for negative data. z The weighing data uses spaces in place of the leading zeros. z The character length of this format changes dependent upon the unit

S 12.78 g

Header

Unit

CRL

TerminatorData

NU (numerical) format 5if type 4

This format outputs only numerical data.

z This format consists of nine characters excluding the terminator. z The polarity sign is placed before the data with the leading zero s. If the data is zero, the plus sign is used.

Page 41

CSV format 5if type 5

 Separates the data of A&D standard format and the unit by a comma (,).

 Outputs the unit even when the data is overloaded.

 When the ID number and data number are added, outputs the ID number, data number and

weighing data in this order and separates each item by a comma and treats all the items as one group of data.

Note

To add the ID number and data number, the function settings must be changed.

10-7 Description of the Data Format Added to the Weighing Data

Data number dout d-no 1

This format outputs the data number just before the data is transmitted using the RS-232C interface.

 This format consists of six characters excluding the terminator.

 When CSV format (5if type 5) is selected, the period (

Note

The data number is added only to the weighing data that is stored in memory.

. ) is replaced with a comma ( , ).

ID number dout 5-id 1

The number to identify a specific balance.

 This format consists of seven characters excluding the terminator.

Note

When the data described above is added to the weighing data, the output is in the following order: ID number, Data number, and Weighing data.

Page 42

10-8 Data Format Examples

Stable

A&D

DP KF

MT* MT*

ST,+00001. 72

S +

00001 . 72

Note Two formats are available for MT. *1 is the output format when the PRINT key or external print input is used. *2 is the output format for others.

1. 72g

1. 72

1. 72g

CRL

F F

Unstable

Overload

Positive error

Overload

Negative error

A&D

DP KF

MT NU

A&D

US, - 00183 . 96g

- 00183. 96

OL , + 9 9 9 9 9 9 E 1

DP KF

MT NU

A&D

SI+

+999 99999

OL , - 9 9 9 99 9 E 1+99

DP KF

MT NU

SI -

-99999999

Space, ASCII 20h

Carriage Return, ASCII 0Dh

Line Feed, ASCII 0Ah

183. 96

CRL

LFC

-183. 96g

CRL

183. 96

CRL

+99

CRL

Page 43

Units

Counting mode

Precent mode

Ounce (Avoir)

Pound

Pound Ounce

Troy Ounce

Metric Carat

Momme

Pennyweight

Grain

(HK general,

Ta e l

Singapore)

Ta e l ( H K , j e w e l r y )

A&D

D.P.

zzo

to z

mmo

toz

mmo

KF MT

toz toz

tc tc

mmo mo

Tael (Taiwan)

Tael (China)

To l a ( I n d i a )

Messghal

Density

Multi

Note

When “Pound Ounce” is selected, the data is output with the unit of ounce (oz).

Space, ASCII 20h

(Blank)

sme

t t

Page 44

10-9 Comparator Function

The results of the comparison are indicated by HI OK LO on the display.

Operating conditions:  No comparison

 Comparison when the weighing data is stable or overloaded, excluding

“near zero”

 Comparison when the weighing data is stable or overloaded, including

“near zero”

 Continuous comparison, excluding “near zero”

 Continuous comparison, including “near zero”

To compare, use:  Upper limit value and lower limit value

 Reference value and tolerance value

Input method:  Digital input

 Weighing input

 Command input from a computer (Refer to “18. COMMANDS”.)

Note

"Near zero" means within ±10 digits of the minimum weighing value. For example, using a GF-2000 in gram mode, near zero is within ±0.10 g.

For the description of “Comparator mode (Cp fnc)”, refer to “10-3 Details of the Function Table”.

Setting example 1

(Continuous comparison, excluding “near zero”, reference value and tolerance value, digital input)

Selecting a comparator mode

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

2 Press the SAMPLE key several times to display Cp fnc .

3 Press the PRINT key.

4 Press the RE-ZERO key several times to display Cp 3 .

5 Press the SAMPLE key several times to display Cp in .

6 Press the RE-ZERO key several times to display Cp in 2 .

7 Press the PRINT key to store the selected mode.

Entering the reference and tolerance values

8 With Cp ref displayed, press the PRINT key. The current setting is displayed with all the

digits blinking.

 When the current setting is not to be changed, press the PRINT or CAL key to proceed to

step 9.

 When the current setting is to be changed, press the RE-ZERO key. Change the setting

using 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 step 9. CAL key To cancel the new setting and go to step 9.

Page 45

9 With Cp lnt displayed, press the PRINT key. The current setting is displayed. When the

current setting is to be changed, change the setting using the following keys. Enter the tolerance value, in percentage to the reference value, as 100%.

SAMPLE key To select the digit to change the value.

RE-ZERO key To change the value of the digit selected.

PRINT key To store the new setting and go to step 10.

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

10 Press the CAL key to exit the comparator function and return to the weighing mode.

Setting example 2

(Comparison when the weighing data is stable or overloaded, including “near zero”, upper limit and

lower limit, weighing input)

Selecting a comparator mode

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

2 Press the SAMPLE key several times to display Cp fnc .

3 Press the PRINT key.

4 Press the RE-ZERO key several times to display Cp 2 .

5 Press the SAMPLE key several times to display Cp in .

6 Press the RE-ZERO key several times to display Cp in 1 .

7 Press the PRINT key to store the selected mode.

Entering the upper and lower limit values

8 With Cp Hi displayed, press the PRINT key. The current setting is displayed with all of the

digits blinking. Press the RE-ZERO key to enter the weighing input mode.

9 Press the RE-ZERO key. The balance displays 0.00g. Place a sample with a mass that

corresponds to the upper limit value on the pan. Press the PRINT key to store the upper limit

value. Remove the sample. The balance displays Cp lo .

10 With Cp lo displayed, press the PRINT key. The current setting is displayed with all of the

digits blinking. Press the RE-ZERO key to enter the weighing input mode.

11 Press the RE-ZERO key. The balance displays 0.00g. Place a sample with a mass that

corresponds to the lower limit value on the pan. Press the PRINT key to store the lower limit

value. Remove the sample.

12 Press the CAL key to exit the comparator function and return to the weighing mode.

Notes

When Pound/Ounce is selected as a weighing unit, enter the values in ounces for

comparison.

In the density mode, comparison is performed to the density obtained.

Page 46

11. ID NUMBER AND GLP REPORT

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

 The ID number is maintained in non-volatile memory even if the AC adapter is removed.

 The GLP output format is selected at “GLP output (info)” of the function table and can be

output to a personal computer or printer using the RS-232C serial interface.

 The GLP output format includes the balance manufacturer, model, serial number, ID number

and space for signature for weighing data, and the weight used and results for calibration or calibration test data.

When the AD-8121B is used, the date and time can be printed using the AD-8121B clock and

calendar function. In this case, set the “GLP output ( info )” parameter to “1”.

 The balance can output the following reports for GLP. “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.

11-1 Setting the ID Number

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

2 Press the SAMPLE key several times to display id .

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

RE-ZERO key To set the character of the digit selected. Refer to the display character

set shown below.

SAMPLE key To select the digit to change the value.

PRINT key To store the new ID number and display ba5fnc.

CAL key To cancel the new ID number and display ba5fnc.

4 With ba5fnc displayed, press the CAL key to return to the weighing mode.

Display character set

11-2 GLP Report

Set the following parameters to output the report.

 To print the report, set the “GLP output ( info )” parameter to “1” and use MODE 3 of the

AD-8121B. For details on using the printer, refer to “17-1 Connection to the AD-8121B Printer”.

If the time and date are not correct, adjust the AD-8121B clock and calendar.

 To output the report to a personal computer using the RS-232C interface, set the “GLP output

( info )” parameter to “2”.

Note

For operational details about calibration and calibration test, refer to “8. CALIBRATION”.

Page 47

Calibration report using an external weight

When the setting is “info 1”: When the setting is “info 2”:

AD-8121 format General data format

MODEL S/N ID DATE TIME CALIBRATED(EXT.) CAL.WEIGHT +2000.00 g SIGNATURE

- - - - - - - -

<TERM>

GF-2000

01234567

ABCDEFG

2008/04/18

11:12:09

Space, ASCII 20h Terminator, , or

Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

A&D

Manufacturer

Model

Serial number

ID number

Date Time

Calibration type

Calibration

weight

Signature

A & D<TERM> MO DE L GF - 2 00 0<TERM> S/ N 012 3 4 56 7<TERM> ID AB C D EF G<TERM> DA TE <TERM> <TERM> TI ME <TERM> <TERM> CALIBRATED(EXT.)<TERM> CAL.WEIGHT<TERM> + 2 0 00. 0 0 g<TERM> SI GN A T U R E<TERM> <TERM> <TERM>

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

Calibration test report using an external weight

(Calibration test does not perform calibration.)

When the setting is “info 1”: When the setting is “info 2”:

AD-8121 format

MODEL S/N ID DATE TIME CAL.TEST(EXT.) ACTUAL

0.00 g +1999.99 g TARGET

SIGNATURE

- - - - - - - -

<TERM>

01234567

ABCDEFG2 0 2 0

2008/04/18

11:12:09

+2000.00 g

Space, ASCII 20h Terminator, , or

Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

A&D

GF-2000

Manufacturer

Model

Serial number

ID number

Date

Time

Calibration test

type

Zero point value

Target weight

value

Target weight

Signature

General data format

A & D<TERM> MODEL GF-2000<TERM> S/N 01234567<TERM> ID ABCDEFG<TERM> DA TE <TERM> <TERM> TI ME <TERM> <TERM> CA L. TE ST ( E X T . )<TERM> ACTUAL<TERM>

0.00 g<TERM> +1999.99 g<TERM> TARGET<TERM> +2000.00 g<TERM> SI GN AT UR E <TERM> <TERM> <TERM>

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

Page 48

Title block and end block

When a weight value is recorded as the GLP data, “Title block” and “End block” are inserted at the beginning and at the end of a group of weight values, in the GLP report.

Note

To output the report to an AD-8121B , use MODE 3 of the AD-8121B.

Caution

If the data memory function is used, the “Title block” and “End block” can not be output.

Operation

1 With the weighing data displayed, press and hold the PRINT key until S5tart is displayed.

The “Title block” is output.

2 The weighing data is output according to the parameter setting of the data output mode.

3 Press and hold the PRINT key until recend is displayed. The “End block” is output.

When the setting is “info 1”: When the setting is “info 2”:

AD-8121 format

A&D MODEL S/N ID DATE START TIME

WT +1234.56 g WT +1234.61 g WT +1234.62 g WT +1234.63 g WT +1234.51 g WT +1234.53 g WT +1234.71 g WT +1234.64 g

END 03:50:300 PM SIGNATURE

ABCDEFG2 0 2 0

2008/04/18

GF-2000

01234567

11:12:09

Title block

Manufacturer

Model

Serial number

ID number

Date

Time

Weighing data

Time

Signature

General data format

A & D<TERM> MODEL GF-2000<TERM> S/N 01234567<TERM> ID ABCDEFG<TERM> DA TE <TERM> <TERM> ST AR T<TERM> TI ME <TERM> <TERM>

WT +1234.56 g<TERM> WT +1234.61 g<TERM> WT +1234.62 g<TERM> WT +1234.63 g<TERM> WT +1234.51 g<TERM> WT +1234.53 g<TERM> WT +1234.71 g<TERM> WT +1234.64 g<TERM> <TERM> EN D<TERM> TI ME <TERM> <TERM>

- - - - - - - -

SI GN AT UR E <TERM> <TERM> <TERM>

<TERM>

Space, ASCII 20h Terminator, , or

Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

End block

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

Page 49

12. DATA MEMORY

Data memory is a function to store weighing data and unit mass in memory. Of the data in memory, the balance can only display the weighing data. The weighing data in memory is available for outputting at one time to a printer or personal computer.

One of the following data set can be stored:

 Weighing data (Up to 40 sets.)

 Unit mass in the counting mode (Up to 20 sets)

12-1 Notes on Using Data Memory

To use the memory function, set the “Data memory ( data )” parameter of the function table. For details on setting the data memory, refer to “10. FUNCTION TABLE”.

Releasing “Clr”

If a different type of data exists in memory when the data is stored, “Clr” appears blinking in the upper left of the display. For example, you want to store weighing data but unit mass data remains in memory.

Under such a condition, before storing data, delete the data in memory as follows:

1 Press and hold the PRINT key until SClr no with “no” blinking is displayed.

2 Press the RE-ZERO key to display SClr go with “go” blinking.

The type of data stored in memory appears on the upper left of the display as shown below:

Unit mass in the counting mode pC Weighing data without time and date -d-

3 Press the PRINT key to delete all the data in memory.

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

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12-2 Memory for Weighing Data

 The data memory function can store 40 sets of weighing data. Even if the AC adapter is

removed, the data is maintained in non-volatile memory.

 It is not necessary that the printer or computer be continually connected to the balance,

because the balance stores the weighing data in memory.

 The data in memory is available to be displayed on the balance for confirmation, or to output

several sets of data at one time to a printer or personal computer. In the function setting, what data is to be added to the output data (ID number and data number) can be selected.

Storing the weighing data

Note

If “Clr” appears blinking in the upper left of the display, delete the data in memory.

1 Set the “Data memory ( data )” parameter to “2”.

2 The storing operation depends on the “Data output mode ( prt )” parameter setting. Four

types of operating modes are available to store data.

Key mode When the PRINT key is pressed and the displayed value is

stable, the balance stores the weighing data.

Auto print modes A and B When the displayed value is stable and the conditions of “Auto

print polarity”, “Auto print difference” and reference value are met, the balance stores the weighing data.

Interval memory mode Weighing data is stored at an interval specified in “Interval time

(int)”. Press the PRINT key to start and stop this mode.

Caution

 When weighing data is being stored in memory, the data can not be output to a personal

computer using the RS-232C interface.

 “fUl” indicates that memory is full or the memory capacity has been reached. More data can

not be stored unless the memory data is deleted.

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 The following commands can not be used during data storage.

Q Query command for weighing data.

P Query command for stable weighing data.

SI Query command for weighing data.

SIR Query command for continuous weighing data.

: 1Bh in ASCII code

Setting the function table

Parameter settings for each output mode are as follows:

Item

Mode Key mode prt 0 Not used data 2 Auto print mode A prt 1 data 2 Auto print mode B prt 2 Interval memory mode prt 3 Not used data 2 int 0-8

Data output mode

Auto print polarity, difference

ap-a 0-2 ap-b 0-2

Data memory function

Interval time

Not used

data 2

Set each item, depending on the situation, as follows:

Data number

No d-no 0 Yes d-no 1 No 5-id 0 ID number Yes 5-id 1

Enabling the data memory function

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

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 0 .

5 Press the RE-ZERO key to change data 0 to data 2 .

6 Press the PRINT key to save.

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

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Recalling the memory data

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

1 Press and hold the PRINT key until reCall is displayed.

2 Press the PRINT key to enter the memory recall mode. Recall the data in memory using the

following keys

RE-ZERO key To proceed to the next data set.

MODE key To go back to the previous data set.

PRINT key To transmit the current data using the RS-232C interface.

With SAMPLE held down, press the CAL key To delete the data currently displayed.

Note: Deleting the data will not increase the number of data that can be stored.

CAL key To exit the memory recall mode.

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

Transmitting all memory data at one time

Confirm that the “Serial interface ( 5if )” parameters are set properly. For details, refer to “10. FUNCTION TABLE” and “17. CONNECTION TO PERIPHERAL EQUIPMENT”.

1 Press and hold the PRINT key until reCall is displayed.

2 Press the SAMPLE key to display out .

3 Press the PRINT key to display Sout no with “no” blinking.

5 Press the RE-ZERO key to display out go with “go” blinking.

6 Press the PRINT key to transmit all data using the RS-232C interface.

7 The balance displays Clear 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 reCall is displayed.

2 Press the SAMPLE key several times to display Clear .

3 Press the PRINT key to display SClr no with “no” blinking.

4 Press the RE-ZERO key to display SClr go with “go” blinking.

5 Press the PRINT key to delete all data

6 The balance displays end , then reCall when all data is deleted.

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

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12-3 Memory for Unit Mass in the Counting Mode

 The data memory function can store 20 sets of unit mass for the counting mode. Even if the

AC adapter is removed, the data is maintained in non-volatile memory. Among the 20 sets, “p01” is the memory function for the standard counting mode.

 The unit mass in memory can be recalled and used for weighing.

 The unit mass in memory can be recalled and changed.

Recalling the unit mass

1 Set the “Data memory ( data )” parameter to “1”.

2 Press the MODE key to select PC (counting mode).

Notes

If the counting mode can not be selected, refer to “5. WEIGHING UNITS”. If “Clr” appears blinking in the upper left of the display, delete the data in memory.

3 Press and hold the PRINT key until the balance enters

the sample unit mass selection mode as shown below.

4 Select the unit mass to be used using the following keys.

RE-ZERO key To increase the unit mass number by one. MODE key To decrease the unit mass number by one. PRINT key To select the unit mass number to be used. CAL key To cancel the operation and go to step 5.

5 To re-store the unit mass or perform Automatic Counting Accuracy Improvement (ACAI) on

the stored unit mass, follow the procedure described in “6-2 Counting Mode (PC)”.

Notes

ACAI can not be performed on the recalled unit mass. Using the “UN:mm” command, the unit mass stored in memory can be recalled. (“mm” will

be replaced by a two-digit number, 01 to 20, that corresponds to the unit mass numbers, P01 to P20.) The recalled unit mass can be output by the “?UW” command and can be changed by the “UW: ” command.

Page 54

13. UNDERHOOK

The underhook can be used for weighing large samples, magnetic materials or for measuring density. 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, attach the plastic cap to prevent dust from getting into the balance.

Page 55

14. 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 Maximum coefficient GF-200/300/400/600/800/1000 1000 GF-1200/2000/3000/4000/6100 100 GF-6000/8000

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 mltCadj .

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

0.000001 10

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.

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 “6-1 Basic Operation (Gram Mode)”. After weighing, the balance displays the result (weighing data in grams x coefficient).

Page 56

15. DENSITY MEASUREMENT

The GF series balance is equipped with a density mode. It calculates the density of a solid using the weight of a sample in air and the weight in liquid.

 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.

 Two ways to set the density of a liquid are available: by entering the water temperature or by entering the density directly.

 The density determination kit (GX-13) is available as an option for GF-200/300/400/600/800/1000.

Formula to obtain the density

The density can be obtained by the following formula.

Where A: Density of a sample A: Weight value of a sample in air B: Weight value of a sample in liquid B: Density of a liquid

Changing the function table

(1) Selecting the density mode

The density mode is available as one of the weighing units. To use the mode, select it in the function table. For details, refer to “5-2 Storing Units”.

(2) Selecting a way to set the density of a liquid

Select the liquid density input method from the function table below. The function table is available only when the density mode is selected.

Class Item Parameter Description

ld in

Density function

0 = Factory setting

Liquid density input

0 Water temperature d5 fnc 1 Liquid density

Setting the density of a liquid

1. Press the MODE key as necessary to select the density mode. When the processing indicator blinks with the unit “g” displayed, it indicates that the density mode is selected.

2. In the density mode, press and hold the MODE key to enter the mode to set the liquid density.

Note

In the normal weighing mode, the same procedure will activate the manual response adjustment/self check function. These are not available in the density mode.

Entering the water temperature ( ldin 0 )

In the density mode, press and hold the MODE key until the water temperature currently set (unit:°C, factory setting : 25°C) is displayed. Use the following keys to change the value.

RE-ZERO key To increase the temperature by one degree. (0-99)

MODE key To decrease the temperature by one degree. (0-99)

PRINT key To store the change, display end and return to the density mode.

CAL key To cancel the change and return to the density mode.

Page 57

The relation between the water temperature and density is shown below.

Entering the density directly ( ldin 1 )

In the density mode, press and hold the MODE key until the density currently set (unit : g / cm3, factory setting : 1.000g / cm3) is displayed. Use the following keys to change the value.

RE-ZERO key To set the value of the digit selected.

SAMPLE key To select the digit to change the value.

PRINT key To store the change, display end and return to the density mode.

CAL key To cancel the change and return to the density mode.

Note

The range to set the density is 0.0000 to 1.9999 g / cm3

Measuring the density

In the density measurement, the balance displays the weight of a sample in air, the weight in liquid and then the density.

 Measuring the weight of a sample in air.

The processing indicator blinks with the unit “g” displayed.

 Measuring the weight of a sample in liquid.

The processing indicator illuminates with the unit “g” displayed.

 Displaying the density.

The processing indicator illuminates with “DS” displayed.

To cycle through the above three, press the SAMPLE key.

Note

The SAMPLE key can not be used to change the minimum weighing value. The density is displayed with three decimal places.

Page 58

Measuring procedure

1 Confirm that the balance is in the mode to measure the

weight of the sample in air. (“g” displayed and processing indicator blinking)

2 Confirm that the balance indicates zero. If it does not

indicate zero, press the RE-ZERO to reset the displayed value to zero.

3 Place the sample on the upper pan (in air). When the

value displayed on the balance becomes stable, press the SAMPLE key to confirm the value (the weight of the sample in air). The balance enters the mode to measure the weight of the sample in liquid (“g” displayed and processing indicator illuminating).

Note

If a negative value or E (error) is displayed, the SAMPLE key is disabled.

" " blinks.

4 Remove the sample from the upper pan and place it on

" "

the lower pan (in liquid). When the value displayed on the

balance becomes stable, press the SAMPLE key to

confirm the value (the weight of the sample in liquid). The

balance enters the mode to display the density (“g”

disappears).

illuminates.

Density mode

Note

If E (error) is displayed, the SAMPLE key is disabled.

5 To output or store the density, press the PRINT key. The

density output unit is “DS”. To measure the density of another sample, press the SAMPLE key to return to the mode to measure the weight in air and repeat the procedure described above.

Note

If the liquid temperature or the type of liquid is changed during measurement, reset the value of the liquid density as necessary. For details, refer to “Setting the density of a liquid”.

" " illuminates.

Page 59

16. RS-232C SERIAL INTERFACE / EXTERNAL INPUT

Transmission system : EIA RS-232C Transmission form : Asynchronous, bi-directional, half duplex Data format : Baud rate : 600, 1200, 2400, 4800, 9600 bps Data bits : 7 or 8 bits Parity : Even, Odd (Data bits 7 bits) None (Data bits 8 bits) Stop bit : 1 bit Code : ASCII

Pin connections

Pin No. Signal name Direction Description

1 FG - Frame ground 2 RXD Input Receive data 3 TXD Output Transmit data 4 RTS Input Ready to send 5 CTS Output Clear to send 6 DSR Output Data set ready

7 SG - Signal ground 18 PRINT Input Same as the PRINT key 19 RE-ZERO Input Same as the RE-ZERO key

8 – 25 (Excluding 18 and

19)

- - Not connected

Circuits

Page 60

External input

Pin 18 and pin 19 perform the same function as pressing the PRINT and RE-ZERO keys respectively by connecting each pin to pin 7 for at least 100 ms.

Use of example

The external input connector (AX-HDB-25P/CTF) and the foot switch (AX-SW128) are sold separately.

Page 61

17. CONNECTION TO PERIPHERAL EQUIPMENT

17-1 Connection to the AD-8121B Printer

Set the following parameters to use the AD-8121B printer.

Function setting Description

dout prt 0-3 dout ap-p 0-2 dout ap-b 0-2 dout pU5e 0,1 5if bp5 2 Factory setting 2400 bps 5if btpr 0 Factory setting 7 bits, Even parity check 5if Crlf 0 Factory setting CR, LF 5if Ct5 0 Factory setting CTS and RTS control, not used

When “MODE 1” or “MODE 2” of the AD-8121B printer is used

dout 5-id 0 Factory setting Does not output the ID number. dout at-f 0 Factory setting Does not perform auto feed. 5if type 0 Factory setting A&D standard format

When “MODE 3” of the AD-8121B printer is used.

dout 5-id 0、1 dout at-f 0、1 5if type 1

When data is transmitted continuously./When all memory data is transmitted at one time.

dout pU5e 1

Selects a print mode. Selects the polarity for the auto print mode. Selects the auto print difference. Selects data output pause.

Select whether or not the ID number is output. Select whether or not auto feed is performed. DP format

Uses pause.

Note The printer performs as follows, depending on the data memory setting.

Setting What is printed

data 0 data 2

Refer to “11. ID NUMBER AND GLP REPORT” for a print sample.

The weighing data The weighing data stored in memory

17-2 Connection to a Computer

The GF series balance is of the DCE type (Data Communication Equipment), which can be connected to a personal computer using the RS-232C interface. Before connection, read the personal computer manual thoroughly. Use a standard DCE cable for connection (cable type: straight-through).

Page 62

17-3 Using Windows Communication Tools (WinCT)

When Windows is used as an operating system in a personal computer, the provided WinCT software can be used to transmit the weighing data to the personal computer. The WinCT has two communication methods: “RsCom” and “RsKey”. For details on WinCT, refer to the WinCT instruction manual. The current version of the WinCT can be downloaded from the A&D website.

RsCom

 Can transmit commands to control the balance.

 Can make bi-directional communication between the balance and a personal computer using

the RS-232C interface.



Can display or store the data using a text file format. Can also print the data using a printer

connected to the personal computer.

 When several ports of a personal computer have balances connected, the personal computer

can communicate with each balance simultaneously.

 Can share a personal computer with other application software.

 Can receive the balance GLP report.

RsKey

 Can transmit the weighing data output from the balance directly to other application software

such as Microsoft Excel.

 Can be used with most application software.

 Can receive the balance GLP report.

Note Windows and Excel are the registered trademarks of the Microsoft Corporation.

Using the WinCT software, the balance can do the following:

1 Analyzing the weighing data and the statistics input by “RsKey” The weighing data can be input directly into an Excel worksheet. Then, Excel can analyze the

data to obtain total, average, standard deviation, maximum and minimum value, and display them in a graph.

2 Controlling the balance using commands from a personal computer By using “RsCom”, the personal computer sends commands such as “re-zero” or “send

weighing data” to the balance and controls the balance.

3 Printing the balance GLP report using your printer The balance GLP report can be printed using a printer connected to the personal computer.

4 Receiving weighing data at a certain interval The weighing data can be received at a certain interval and data characteristic with elapsed

time can be obtained.

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5 Using the GF series balance memory function The weighing data, instead of outputting it immediately to an external device, can be stored in

the balance’s memory. Later, all of the weighing data stored can be output to a personal computer at one time.

6 Using a personal computer as an external indicator With the “RsKey” test mode function, a personal computer can be used as an external weight

indicator for the balance. (To do this, set the balance data output mode to stream mode.)

Page 64

18. COMMANDS

18-1 Command List

Commands to query weighing data

C Cancels the S or SIR command. Q Requests the weighing data immediately. S Requests the weighing data when stabilized. SI Requests the weighing data immediately. SIR Requests the weighing data continuously.

P Requests the weighing data when stabilized.

Note: The “Q” and “SI” commands, the “S” and “

Commands to control the balance

CAL Same as the CAL key. MCL Deletes all data in memory. MD:nnn Deletes weighing data with the data number nnn. OFF Turns the display off. ON Turns the display on. P Same as the ON:OFF key PT:∗∗∗. ∗∗ g Sets the tare value.

The unit added is the unit that is output in the A&D standard format. For the counting or percent mode, gram is used. Set the tare value so that the total value of the sample and the tare does not exceed the weighing capacity. Negative values can not be used.

?PT Requests the tare value.

Outputs the tare value set by the TR or PT: command.

R Same as the RE-ZERO key SMP Same as the SAMPLE key. U Same as the MODE key T Same as the RE-ZERO key TR Tares the balance (Cancels the container’s weight.)

Available only when the load on the weighing pan is greater than the zero point. The zero point is set by the R, T or Z command, by pressing the RE-ZERO key, or using the external input.

Z Same as the RE-ZERO key

T Same as the RE-ZERO key

Note: The “R”, “T”, “Z” and “

T” commands behave the same.

P” commands behave the same.

Commands to control the memory function

?MA Outputs all data in memory. ?MQnnn Outputs weighing data with the data number nnn. ?MX Outputs the number of weighing data in memory. MCL Deletes all data in memory. MD:nnn Deletes weighing data with the data number nnn. UN:mm Changes the unit mass stored in memory with the number of mm (01-20). ?UN Outputs the unit mass number of the selected unit mass. UW:∗∗∗. ∗∗ g Sets the unit mass value. e.g.,UW:+0.123 g (to set the unit mass to

0.123 g: represents a space.)

?UW Outputs the unit mass value of the selected unit mass number. ?ID Requests the ID number. ?SN Requests the serial number. ?TN Requests the model name.

Page 65

Commands to control the comparator function

HI:∗∗∗. ∗∗ g Sets the upper limit value. e.g.,HI:+2.34 g (to set the upper limit

value to 2.34 g: represents a space.)

LO:∗∗∗. ∗∗ g Sets the lower limit value. e.g.,LO:+1.23 g (to set the lower limit

value to 1.23 g: represents a space.)

?HI Outputs the upper limit value. ?LO Outputs the lower limit value.

Notes

“nnn” and “mm” indicate, respectively, three-digit and two-digit numerical values.

: 1Bh in ASCII code

Before transmitting a command, add the terminator (<CR><LF> or <CR>), that is specified in

the “Terminator (Crlf)” parameter of “Serial interface (5if)” in the function table, to the command.

To use a command to control the comparator function, set the “Input method (Cpin)” parameter to “0” or

“1”.

18-2 Acknowledge Code and Error Codes

When the “Serial interface function ( 5if )” parameter is set to “erCd 1”, the balance outputs <AK>

code or an error code for each command as follows:

<AK> (06h) Acknowledge in ASCII code.

 When the balance receives a command to request data and can not process it, the balance

transmits an error code (EC, Exx).

When the balance receives a command to request data and can process it, the balance

outputs the data.

 When the balance receives a command to control the balance and can not process it, the

balance transmits an error code (EC, Exx).

When the balance receives a command to control the balance and can process it, the balance

transmits the acknowledge code.

 When a communication error has occurred due to external noise, or a parity error has

occurred due to transmission error, the balance transmits an error code. In this case, send the command again.

Among commands to control the balance, the following transmit the acknowledge code both

when the balance receives the command and when the balance has accomplished the command. If the command can not be processed properly, the balance transmits an error code (EC, Exx). This error can be released using the CAL command.

CAL command (Calibration command) ON command (Display ON command)

P command (Display ON/OFF command) R command (RE-ZERO command)

TR command (Tare command)

Page 66

18-3 Command Examples

ON command

Personal computer Time Balance

ON command

CRL

All segments

R command

Personal computer Time Balance

R command

CRL

Standby mode

Command received

All segments are displayed

Command completed

Zero display

Weighing mode

Command received

In process

CRL

Command completed

Zero display

Page 67

Error code

Personal computer Time Balance

R command

CRL

CAL command

AC L

CRL

Weighing mode (unstable)

Command received

In process

When the R command can not be achieved due to unstable weighing:

Error code

1E,CE

When the CAL command is received, the balance returns to the weighing mode

Command completed

Weighing mode

Page 68

Weighing with a tare

Personal computer Time Balance

R command

TR command

S command

?PT command

P? T

CRL

ＳＴ，＋００１００．００　　ｇ

(Net value)

CRL

ＰＴ，＋００１２６．８７　　ｇ

(Tare value)

Sets the display to zero

Command received

In process

Command completed

Zero display

Place a container

Tar es

Command received

In process

Command completed

Zero display

Page 69

Setting a negative target value and filling with a sample until the display becomes zero

R command

PT:

command to set a target weight of 100 g

Personal computer Time Balance

CRL

g00001:TP .

CRL

Place a container

Before command execution

Command received In process

Command completed Zero display

Command received Target weight display

Fill with sample until the display becomes zero

18-4 Control Using CTS and RTS

Depending on the “Ct5” parameter of “Serial interface ( 5if )”, the balance performs as follows:

Ct5 0

Regardless of whether the balance can receive a command or not, the balance keeps the CTS line HI. The balance outputs data regardless of the condition of the RTS line.

Ct5 1

The CTS line is kept Hi normally. When the balance can not receive the next command (e.g. while the balance is processing last command), the balance sets the CTS line to Lo. The balance confirms the level of the RTS line before outputting a set of data. If the RTS level is Hi, the balance outputs data. If the RTS level is Lo, data is not output (The data is canceled).

18-5 Settings Related to RS-232C

Concerning the RS-232C, the balance has two functions: “Data output ( dout )” and “Serial interface ( 5if )”. Set each function as necessary.

Page 70

19. MAINTENANCE

 Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that

is moistened with warm water and a mild detergent.

 Do not disassemble the balance. Contact the local A&D dealer if the balance needs service or

repair.

 Use the original packing material for transportation.

20. TROUBLESHOOTING

20-1 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.

Checking that the balance performs properly

 Check the balance performance using the self-check function as described in “7-2 Self Check

Function”.

An error display appears when a malfunction is found.

 Check the balance repeatability 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.

Checking that the operating environment or weighing method is proper

Operating environment

 Is the weighing table solid enough (especially for the GF-200/300/400/600/800/1000, the

balance with a minimum weighing value of 0.001 g)?

 Is the balance level? Refer to “3-1 Before Use”.

 Is the operating environment free from vibration and drafts? For the GF-200/300/400/600/800/

1000, has the breeze break been installed?

 Is there a strong electrical or magnetic noise source such as a motor near the balance?

Weighing method

 Does the weighing pan touch the breeze ring or anything? Is the weighing pan installed

correctly?

 Is the RE-ZERO key pressed before placing a sample on the weighing pan?

Page 71

 Is the sample placed in the center of the weighing pan?

 Has the balance been calibrated using an external mass?

 Has the balance been warmed up for 30 minutes 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 “3-2 During Use”.

 Is the sample charged with static electricity? Refer to “3-2 During Use”.

The GF-200/300/400/600/800/1000 is prone to be charged with static electricity when the

relative humidity is low.

 Is the sample of magnetic material such as iron? Caution is required for weighing magnetic

materials. Refer to “3-2 During Use”

20-2 Error Codes

Display Error code Description

EC, E11 Stability error

The balance can not stabilize due to an environmental problem. Prevent vibration, drafts, temperature changes, static electricity and magnetic fields.

Refer to “3. PRECAUTIONS” for details on the operating environment and “7. RESPONSE ADJUSTMENT” about adapting the balance to the environment.

To return to the weighing mode, press the CAL key.

Out of range error

The value entered is beyond the settable range.

Re-enter the value.

EC, E20 Calibration weight error

The calibration weight is too heavy. Confirm the calibration weight value.

Press the CAL key to return to the weighing mode.

EC, E21 Calibration weight error

The calibration weight is too light. Confirm the calibration weight 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.

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Display Error code Description

Weighing pan Error

The weight 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.

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.

(CHECK NO)

(Blinking)

Memory type error

EC, E00 Communications error

EC, E01 Undefined command error

Internal error

Indicates an internal error as the result of self-check function.

Repair is required. Contact the local A&D dealer.

Memory full

The amount of weighing data in memory has reached the maximum capacity.

Delete data in memory to store new data. For details, refer to “12. DATA MEMORY”.

Type of memory set in the function table and type of data stored are different.

For details, refer to “12. DATA MEMORY”.

A protocol error occurred in communications.

Confirm the format, baud rate and parity.

An undefined command was received.

Confirm the command.

EC, E02 Not ready

A received command can not be processed.

e.g. The balance received a Q command, but not in the

weighing mode.

e.g. The balance received a Q command while

processing a RE-ZERO command.

Adjust the delay time to transmit a command.

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Display Error code Description

EC, E03 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.

EC, E04 Excess characters error

The balance received excessive characters in a command.

Confirm the command.

EC, E06 Format error

A command includes incorrect data.

e.g. The data is numerically incorrect.

Confirm the command.

EC, E07 Parameter setting error

The received data exceeds the range that the balance can accept.

Confirm the parameter range of the command.

Other errors If the errors described above can not be released or

other errors are displayed, contact the local A&D dealer.

20-3 Asking For Repair

If the balance needs service or repair, contact the 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.

 Remove the weighing pan from the main unit

Page 74

21. SPECIFICATIONS

GF-200 GF-300 GF-400 GF-600 GF-800 GF-1000

Weighing capacity

Maximum display

Minimum weighing value (1 digit)

Repeatability (Standard deviation)

Linearity

Stabilization time (typical at FAST)

Sensitivity drift (10°C-30°C/50

Operating environment

Display refresh rate

Counting mode

Percent mode

External calibration weight

F-86°F )

Minimum unit mass

Number of samples

Minimum 100% reference mass

Minimum 100% display

210 g 310 g 410 g 610 g 810 g 1100 g

210.084 g 310.084 g 410.084 g 610.084 g 810.084 g

0.001 g

0.002 g

Approx. 1 second Approx. 1.5 seconds

±2 ppm/°C

5°C to 40°C (41°F to 104°F)

85%RH or less (No condensation)

5 times/second or 10 times/second

0.001 g

10, 25, 50 or 100 pieces

0.100 g

0.01%, 0.1%, 1% (Depends on the reference mass stored.)

200 g 100 g

300 g 200 g 100 g

400 g 300 g 200 g

600 g 500 g 400 g 300 g 200 g

0.003 g

800 g 700 g 600 g 500 g 400 g 300 g 200 g

1100.084 g

1000 g

900 g 800 g 700 g 600 g 500 g 400 g 300 g 200 g

Weighing pan

Net weight

External dimensions

AC adapter

Power consumption

Interface (Provided as standard)

128 x 128 mm

Approx. 3.8 kg

210 (W) x 317 (D) x 86 (H) mm

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

Approx. 11VA (supplied to the AC adapter)

RS-232C with Windows Communication Tools WinCT

Page 75

Weighing capacity

Maximum display

Minimum weighing value (1 digit)

Repeatability (Standard deviation)

Linearity

Stabilization time (typical at FAST)

Sensitivity drift (10°C-30°C/50°F-86°F )

Operating environment

Display refresh rate

Counting mode

Percent mode

External calibration weight

Minimum unit mass

Number of samples

Minimum 100% reference mass

Minimum 100% display

GF-1200 GF-2000 GF-3000 GF-4000 GF-6100 GF-6000 GF-8000

1210 g 2100 g 3100 g 4100 g 6100 g 6100 g 8100 g

1210.84 g 2100.84 g 3100.84 g 4100.84 g 6100.84 g

0.01 g 0.1 g

0.02 g

Approx. 1 second

±2 ppm/°C ±5 ppm/°C

5°C to 40°C (41°F to 104°F)

85%RH or less (No condensation)

5 times/second or 10 times/second

0.01 g 0.1 g

10, 25, 50 or 100 pieces

1.00 g

0.01%, 0.1%, 1% (Depends on the reference mass stored.)

1000 g 500 g

2000 g 1000 g

3000 g 2000 g 1000 g

4000 g 3000 g 2000 g

0.03 g

Approx.

1.5 s

6000 g 5000 g 4000 g 3000 g 2000 g

6108.4 g 8108.4 g

0.1 g

Approx. 1 second

10.0 g

6000 g 5000 g 4000 g 3000 g 2000 g

8000 g 7000 g 6000 g 5000 g 4000 g 3000 g 2000 g

Weighing pan

Net weight

External dimensions

AC adapter

Power consumption

Interface (Provided as standard)

165 x 165 mm

Approx. 4.3 kg

210 (W) x 317 (D) x 86 (H) mm

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

Approx. 11VA (supplied to the AC adapter)

RS-232C with Windows Communication Tools WinCT

Page 76

22. OPTIONS

Glass Breeze Break Glass Breeze Break Animal Weighing Bowl Density Determination (GX-10) (GX-11) Kit (GX-12) Kit (GX-13)

For GF-200/300/400 For GF-1200/2000/3000 600/800/1000 4000/6100/6000 8000

GX-02 USB interface (Applicable OS is Windows 98 OSR2 or later.)

To be installed in place of the RS-232C interface.

 May be used to transmit the balance weighing data to a personal computer.  The balance weighing data can be transmitted to applications such as Excel, Word and memo

pad for Windows automatically.

 Driver installation is not necessary.  To perform bi-directional communications using WinCT, to output the statistical data or GLP to

a personal computer by using the personal computer USB interface, use the AX-USB-25P USB converter.

For all models except GF-200

The mass of the Animal Weighing

Bowl Kit is approx. 200g.

For GF-200/300/400

600/800/1000

AD-1682 Rechargeable battery

 Allows use of the balance in a place where AC power is not available.

AD-8121B Printer

 Compact dot-matrix printer  Statistical function, clock and calendar function, interval

print function, graphic print function, dump print mode

 5 x 7 dots, 16 characters per line  Print paper (AX-PP143, 45 (W) x 50 (L) mm , ø65 mm)  AC adapter or alkaline battery.

AD-8526 LAN converter

 This option can be used to connect the RS-232C

interface of the balance to the Ethernet (LAN) port of a computer. This allows management of the balance weighing data with a computer connected to a network.

Page 77

(

)

AD-8920 Remote display

 Connected to the GF series using the RS-232C interface to display the weighing data away

from the balance..

AD-8922 Remote controller

 Connected to the GF series using the RS-232C interface to display the weighing data and to

remotely control the balance.

AX-SW128 Foot switch

 Used to externally transmit a RE-ZERO or PRINT signal to the balance.

AX-USB-25P-EX USB converter

 Adds a COM port to a PC.  Enables bi-directional communication between the PC and the balance when a USB driver is

installed.

 Can use serial communication software such as WinCT on a PC without COM ports.  An RS-232C cable is provided to connect the USB converter to the balance.

RS-232C

on the GF series

balance

USB serial

converter

To USB port

on a PC

RS-232C cable provided

D-sub 25-pin

Page 78

AD-1683 DC static eliminator

 Used to minimize weighing errors due to static electricity on the material.

AD-1684 Electrostatic field meter

 This option measures the amount of the static charge on the sample, tare or peripheral

equipment and displays the result. If those are found to be charged, discharge them using the AD-1683 DC static eliminator.

AD-1689 Tweezers for calibration weight

 This option is used when calibrating the balance using an external weight.

Options installed at the factory before shipment:

GX-04 Comparator output with a buzzer / RS-232C / Current loop output

 Used to compare weighing data and output the results.

GX-06 Analog output / Current loop output

 Used to output the weighing data as an analog voltage.

Page 79

23. EXTERNAL DIMENSIONS

Page 80

24. TERMS/INDEX

Terms

Stable value The weight data when the stabilization indicator appears.

Environment Ambient conditions such as vibration, drafts, temperature, static electricity and

magnetic fields which affect the weighing operation.

Store To save the weighing data, unit mass or calibration data using the data memory

function.

Calibration Adjustment of the balance so that it can weigh accurately.

Output To output the weighing data using the RS-232C interface.

Zero point A weighing reference point or the zero display. Usually refers to the value

displayed when nothing is on the weighing pan.

Data number Numbers assigned sequentially when weighing data or unit weight is stored.

Digit Unit of digital resolution. Used for the balance, a unit of minimum weighing value.

Tare To cancel the weight of a container which is not included in the weighing data.

Mode Balance operational function.

Re-zero To set the display to zero.

GLP Good Laboratory Practice.

Repeatability Variation in measured values obtained when the same weight is placed and

removed repetitively. Usually expressed as a standard deviation.

e.g. Standard deviation=1 digit: This means that measured values fall within ±1

digit in the frequency of about 68%.

Stabilization time Time required after a sample being placed, until the stabilization indicator

illuminates and the weighing data is displayed.

Sensitivity drift An affect that a change in temperature causes to the weighing data. Expressed

as temperature coefficient.

e.g. Temperature coefficient = 2 ppm/°C : If a load is 300 g and the temperature

changes by 10°C, the value displayed changes by the following value.

0.0002%/°C x 10°C x 300 g = 6 mg

Page 81

Index

Keys and symbols

ON/OFF key ............................... 11, 28

SAMPLE key .............................. 11, 15

MODE key ............................ 11, 12, 15

CAL key ...................................... 11, 15

PRINT key .................................. 11, 15

RE-ZERO key......................... 9, 11, 15

Stabilization indicator............... 11, 15

Interval memory active indicator .... 11

Interval memory standby indicator. 11

Processing indicator ...................... 11

- A -

A&D standard format ...................................37

AC adapter................................................. 6, 7

AC adapter ID label ...................................6, 7

AC adapter jack ......................................... 6, 7

AC adapter plug......................................... 6, 7

ACAI ......................................................19

AD-1682 Rechargeable battery ..................74

AD-1683 DC static eliminator .....................76

AD-1684 Electrostatic field meter ............... 76

AD-1689 Tweezers for calibration weight ...76

AD-8121B Printer......................................... 74

AD-8526 LAN converter ............................. 74

AD-8920 Remote display............................ 75

AD-8920 Remote controller ........................ 75

Animal mode indicator ................................. 11

Auto display-OFF.........................................35

Auto display-ON........................................... 35

Auto print mode ...........................................36

AX-SW128 Foot switch ............................. 75

AX-USB-25P-EX USB converter..................75

- B -

Breeze break ...................................3, 7, 9, 68

Breeze ring ..............................................7, 68

Bubble spirit level....................................... 6, 7

- C -

Calibration.............................................. 23, 78

Calibration test.............................................26

Capacity indicator .............................. 3, 11, 35

Comparator indicators ................................. 11

Comparator function .................................... 42

CSV format .................................................. 39

- D -

Data memory ............................................... 47

Data number ..........................................38, 78

Density determination kit..............................54

Digit ..........................................24, 26, 78

DP (Dump print) format ................................37

- E -

EC, E00 ......................................................70

EC, E01 ......................................................70

EC, E02 ......................................................70

EC, E03 ......................................................71

EC, E04 ......................................................71

EC, E06 ......................................................71

EC, E07 ......................................................71

EC, E11 ......................................................69

EC, E20 ......................................................69

EC, E21 .................................................... 69

Environment.................................................78

External input ...............................................58

- G -

Glass breeze break ......................................74

GLP ............................................3, 44, 78

Grounding terminal ....................................6, 7

GX-02 USB interface.................................74

GX-04 GX-06

GX-10 Glass breeze break .......................74

GX-11 Glass breeze break .......................74

GX-12 Animal weighing bowl kit ...............74

GX-13 Density determination kit ...............74

Comparator output/RS-232C/Current loop output Analog output/Current loop output

............76

.76

- H -

Hold function ................................................34

- I -

ID number ....................................................44

Inhibit ......................................................28

Initializing the Balance .................................29

Interval memory mode .................................37

- K -

Key mode.....................................................36

KF format .....................................................38

- L -

Leveling foot...............................................374

Linearity ..........................................68, 72, 73

- M -

Main unit cover...........................................6, 7

Memory full ............................................48, 70

Page 82

Mode ...................................................... 78

MT format .................................................... 38

- N -

NU (Numerical) format................................. 38

- O -

Sensitivity drift.................................. 72, 73, 78

Stability band width ......................................34

Stabilization time..........................................78

Stable value ..................................... 21, 34, 78

Static electricity ........................................9, 69

Store ...................................................... 78

Stream mode ...............................................36

Output ...................................................... 78

100% reference mass.................................. 20

- p -

Pan support receptor ................................. 6, 7

Percent Mode .............................................. 20

Permit ...................................................... 28

- R -

Reference card ...................................... 3, 6, 7

Repeatability.............................. 68, 72, 73, 78

RESPONSE ................................................ 22

Response characteristic ..............................21

Re-zero ...................................................... 78

RS-232C serial interface.............................. 57

RsCom ...................................................... 60

RsKey ...................................................... 60

- S -

Self check function ...................................... 22

- T -

Tare ......................................................78

- U -

Underhook ...................................................52

Unit mass.....................................................18

Units ......................................................12

- W -

Warm up .....................................................7,8

Weighing capacity.......................... 3, 9, 35, 69

Weighing pan.............................................6, 7

WinCT ..................................................3, 60

- Z -

Zero point................................... 25, 27, 35, 78

Zero tracking................................................35

AND GF-200, GF-300, GF-400, GF-600, GF-800 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual