A&D GR-300 User Manual

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Analytical Balance

Model

GR-120 GR-200 GR-300 GR-202

1563-2A-IE.1999.02.08

A&D Company Limifed

This is an information mark that informs you about the operation of the balance.

NOTE This manual and ortheGR series balances may be changed at any

time to improve the product without notice.

This is a hazard alert mark.

Basic Operation

1. Introduction....................................................................................................... 3

Compliance with FCC Rules Compliance with EMC Directives

2. Caution.............................................................................................................. 5

Precautions for Installing the Balance

Cautions during use (To get best performance)...................................... 6

Take Care of Your Balance..................................................................... 7

Power Supply............................................................................................... 7

3. Unpacking your balance...................................................................................... 8

Installing your Balance

Display Symbols and Key Operation........................................................... 9

4. Weighing Units.................................................................................................... 11

5. Weighing............................................................................................................. 13

Basic Operation (gram mode) Counting Mode (pcs) Percent Mode (%)

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4 4

. 5

13 14 15

Adapting to the Environment

6. Response Adjustment......................................................................................... 16

Automatic Response Adjustment

Manual Response Adjustment

7. Calibration........................................................................................................... 18

Calibration Group

Automatic Self Calibration......................................................................... 19

Calibration Using the Internal Weight........................................................ 20

Calibration Test Using the Internal Weight

Calibration Using an External Weight........................................................ 22

Calibration Test Using an External Weight Correcting the Internal Weight Value

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Functions

8. Function Switch and Initialization........................................................................ 28

Permission or Prohibition Initializing the Balance

9. Function Table.................................................................................................. 30

Display and Keys of the Function Table Details of the Function Table

Explanation of Item "Environment, Display"............................................ 34

Explanation of Item "Data output mode"

Explanation of Item "Data format" ............................................................ 36

Examples of data format

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page 1 Contents

1. Introduction

THANK YOU FOR YOUR A&D PURCHASE

This manual will tell you in simple language how this balance works and how to get the most out of it in terms of performance.

Chapters of this book

Basic operation

Adapting to the environment... Explanations concerning response adjustment,

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

Please read this chapter before use. cautions,

basic operation and names are described.

calibration and calibration test. Functions Serial interface (RS-232C)

Maintenance

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

......

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

Functions and parameters for the balance.

This interface transmits data and can control the

balance.

Maintenance, error code list, options, terms and

index.

Features

□ Built-in Calibration Weight (internal weight), used to calibrate and verify the

calibration of your balance.

□ Automatic Self Calibration, using the built-in weight, adapting to changes in

temperature.

□ Automatic Response Adjustment, adapting to vibration and drafts in the

environment.

□ Data Memory Function, storing 200 weighing data.

□ Interval Memory Mode, storing weighing data periodically.

□ Good Laboratory Practices (GLP) data output using a serial interface.

□ Under Hook, for measuring specific gravity and magnetic substances.

□ The balance is equipped with the specific gravity measuring mode to

calculate the specific gravity (density) of a solid.

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

□ RS-232C serial interface, for transmitting data and controlling your balance.

□ Door Control Lever, a front mounted door control can easily open and close

one of the side doors if connected using the door joint.

Basic operation page 3 1 ■ Introduction

Compliance with FCC Rules

Please note that this equipment generates, uses and can radiate radio frequency energy. This equipment has been tested and has been found to comply with the limits of a Class A computing device pursuant to Subpart J of Part 15 of FCC rules. These rules are designed to provide reasonable protection against interference when equipment is operated in a commer cial environment. If this unit is operated in a residential area it might 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 EMC Directives

This device features radio interference suppression in compli

C€

ance with valid EC Regulation 89/366/EEC.

Note 1

The displayed value may be adversely affected under extreme

electromagnetic influences.

2 Protect the RS-232C connector from extreme electrostatic dis

charge when peripheral equipment is not connected.

Protect the AC adapter jack from extreme electrostatic discharge

when the AC adapter is not connected.

1. Introduction

Page 4

Basic operation

2. Gaution

Precautions for Installing the Balance

To ensure that you get the most from your balance, please try to follow

these conditions as closely as possible:

□ The best operating temperature is about 20°C

/ 68°F at about 50% Relative Humidity.

□ Try to ensure a stable power source when using

the AC adapter.

□ Please warm-up the balance for at least one

hour. Plug-in the AC adapter as usual.

□ The weighing room should be free of dust.

□ The weighing table should be solid and free

from vibration, drafts (such as frequently open ing doors or windows) and as level as possible.

□ Keep the balance level by using the bubble spirit

level.

□ Don’t install the balance near heaters or air

conditioners.

□ Don’t install the balance in direct sunlight.

□ Don’t use the balance near other equipment which

produces magnetic fields.

□ Corners of rooms are best as they are less

prone to vibrations.

□ Calibrate the balance before using and after

moving it to another location.

Do not place or use the balance where there is flammable or corrosive gas present.

Basic operation

page 5

Cautions during use (To get best performance)

Note the following items to get accurate weighing data.

□ Press the | RE-ZERO | key before each weighing to prevent

possible error.

□ Calibrate the balance periodically so as to cancel possible

weighing error.

□ Make each weighing quickly to avoid errors due to changes

in the environmental conditions.

□ Close glass doors to keep out drafts.

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

weight beyond the range of the balance on the weighing

pan.

□ Do not use a sharp instmment (such as a pencil or ball point

pen) to press the keys, use your finger only.

□ Toweighproperlywithaminimum display of 0.01 mg using

the GR-202, replace the breeze break ring with the fine

range breeze break ring. See page 8 for details.

□ Dischargestaticelectricityfromtheweighed matter. When

weighing material (plastics, insulator, etc.) could have a

static charge, the weight value is influenced. Try to keep

the ambient humidity above 45%RH or to use the metal

shield case.

□ This balance uses a strong magnet as part of the balance

assembly, so please use caution when weighing magnetic materials. 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.

□ Cancel the temperature difference between the weighed

material and the environment. When a sample is warmer (cooler) than the ambient temperature, the sample will lighter (heavier) than tme weight. This error is due to the rising (falling) draft next the sample.

□ Take into consideration the affect of air buoyancy on a

sample when more accuracy is required.

2. Caution

Page 6

Basic operation

□ Operate your balance gently. Shorten the operation time

as much as possible ( Opening and closing door, placing and removing material). Use a pairof tweezers (pincette) to avoid temperature changes due to heat from inserting your hand into the weighing chamber.

Take Care of Your Balance

□ Don’t disassemble the balance. Contact your local A&D dealer if your

balance needs service or repair.

□ Don’t use solvents to clean the balance. For best cleaning, wipe with a dry lint

free cloth or a lint free cloth that is moistened with warm water and a mild

detergent.

□ When you transport the balance, hold it as shown in

the right illustration. Never lift the balance using the

weighing chamber frame.

□ Keep magnetic substance away from the balance.

□ Avoid mechanical shock to your balance.

□ Avoid dust and water so that the balance weighs

correctly. Protect the internal parts from liquid spills

and excessive dust.

□ Remove and clean the floor plate of the weighing

chamber.

□ Use the special shipping box supplied for transpor

tation.

Power Supply

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

the standby indicator is on (see "Display Symbols and Key Operation"). This

is a normal state and does not harm the balance. We recommend that you

plug in your balance for at least an hour before use so it can warm up.

Basic operation

page 7

2. Caution

3. Unpacking your balance

□

Unpack the balance carefully and keep the packing material if you want to

transport the balance again in the future.

□

In the carton you should find this manual plus :

Weighing Pan

Leveling foot

Breeze Break Ring

This “fine range breeze break

ring" is an accessory for the GR-202. Before weighing on the fine range, of which the

minimum display is 0.01 mg,

install the this ring in place of the "breeze break ring" to avoid

errors caused by drafts.

Floor Plate of the Weighing Chamber

Door Control Lever A side door can be opened and

closed using the Door Control Lever, when the Door Joint is connected to a side door.

Fine Range v Breeze Break Ring

Bubble Spirit Level

Step Cards (A step card is attached to the balance)

Response Adjustment

nnnnn I weighing pan, press t^UQUU» I and hoWIhe O‘ey*"

two seconds.

UUUUUt I weig

Automatic I

The balance adiotnaii detecting changes in 1

’.^O'uuuua [ ole

bflSfrtC [p'<«''«'VxlKey

dout ~[p'”Slheai«.-Y.

Press the Mod key

Prt

Mi} {i|

Storing Data

PiessrrgiheQ key. the weigrt value Eslciedmlhe balance.

Keys

if'

Data Memory Function

Setting

^ I Press and he*

two seconds.

mtuiiual Q key lor approx,

fECflU [p-gslheQkey

{¿■3SSa

Ihe-*^«-

key to sete cl'f. Press Ihegkey

and then irre^key

Outputting

___

I Piess and hold It«

two seconds.

Use the loHowng

Piessingthekeylwo

3. Unpacking your balance

— Grounding Terminal

Page 8

AC Adapter

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

receptacle type.

-AC Adapter Jack External Key Jack

'—Serial interface (RS-232C)

Basic operation

Installing your Balance

Step 1 Consider the section "2. Caution" for installing

your balance. Place the balance on a firm weigh ing table.

Step 2 Assemble the "Dust Plate", "Breeze Break Ring"

and "Weighing Pan" on your balance. There is a

reference illustration on the previous page.

Step 3 Adjust the level of the balance using the leveling

feet. Ground the balance chassis for discharging static electricity if you have a static problem.

Step 4 Please confirm that the adaptertype is correct for

your local voltage and power receptacle type.

Step 5 Connect the AC adapter to the balance. Warm up

the balance for at least one hour with nothing on the weighing pan.

OK NG

Bubble Sprirt Level

Leveling Foot

Step 6 Calibrate the balance before use.

(Refer to "7. Calibration")

Display Symbols and Key Oiserafion

Processing

indicator

Stabilization

indicator -

Stand-by _

indicator

^ StIS response iF^lMiPnfSLW] r-

Weighing data or stored data

iDZtpCS t jniDnig I

•;CtEHfvi

The amount of stored data with memory data function

Response indicator

Units Stand-by indicator of

interval memory function

Data number of displaying data

Basic operation

Active indicator of interval memory function

A previous notice indicator of automatic self calibration

page 9

3. Unpacking your balance

There are two operation types for pressing a key. Each key operation

performs a different function. First type : "Press and release the key immediately" or "Click the key"

Second type ; "Press and hold the key"

The first type is "to press the key", the first type is normal key operation

during measurement.

Caution

Do not press and hold the key, if you do not perform a rewrite of the internal parameters.

Press the key

(Press and release the key imediately)

Key Press the key

ON:OFR_

(@)

Display ON / OFF key. The stand-by indicator is displayed, when the balance is turned off with this key. Weighing data is displayed, when the balance is turned on with this key.

RANGE-^

Minimum figure of weighing data is changed.

MODE

____

Units are changed (selected from the function table). Refer

to section "4. Weighing Units".

CAL ^

This key performs calibration of the balance using the internal

(S>

weight.

Press and hold the key

The function table menu is displayed.

Refer to section "9. Function table"

Response adjustment is performed.

Other items of the calibration menu are displayed.

Weighing data is stored in the balance (Factory setting) or is output to the RS-232C inter face. This key functions

Data memory menu or GLP menu is displayed. This key functions accord ing to the function table. Factory setting is "not used".

according to the function table.

RE-ZEBOL The key sets the display to zero. This key returns a weighing value to the

center of zero when the weighing pan is empty, and can also tare (cancel) the weight of container and/or sample. Please use this key before each weighing to cancel possible error.

3. Unpacking your balance

Page 10

Basic operation

4. Weighing

The most common unit of weight used around the world is grams, but there

is often a need to shift to an alternative unit specific to the country where the balance is used or to select modes such as counting or percent. The unit can be select by the function table. The units are as follows (if some

are missing please refer to your dealer):

[üjQ

Note

Percent mode

Counting mode

Milii-qram

Gram

(Density mode)

Messgha[/^

Tola(lndia)

If a mode (or unit) of weight has been turned off, the sequence will be missing

that mode or unit. There are also the various Tael that can be included if

necessary. (Tael is selected as a unit from four units installed at the factory)

If the law in your area permits, you may use all of the units, or at this software level you can disable the weighing units you don’t regularly use. Also, some dealers may initially turn OFF units which are not

regularly used, but you may want to turn them back on.

pcs

Tael

Ounce (Avoir)

d*t^

^ ^Pennyweight

\ Grain

Troy Ounce

Hj Metric Carat

mnni- Mflmme

Conversion table

Abb rev. mg oz Ounce (Avoir) ozt Troy Ounce ct Metric Carat

mom dwt GN TL TL TL TL t

mes

Basic operation

Name Conversion Milli-gram 0.001 g

28.349523125 g

31.1034768 g

0.2 g momme Pennyweight 1.55517384 g Grain (UK) Tael (HK general. Sing.) 37.7994 g Tael (HK, jewelry) Tael (Taiwan) Tael (China) Tola (India)

Messghal

3.75 g

0.06479891 g

37.429 g

37.5 g

31.25g

11.6638038 g

4.6875 g

page 11

4, Weighing Units

Operation of unit selection

The unit can be selected in the function table. The sequence of displaying the unit can be arranged so as to fit the frequency of use in the function table. According to the sequence of displaying unit, the units can be

changed with the [MODE key at the weighing mode.

Selecting a unit and arranging the sequence of display

Step 1 Press and hold the RANGE key to display

/ iirr-

Lf ‘ I J I n L

of the function table.

Step 2 Press the [RANGE key several times to display \Un it

Step 3 Press the [PRINT key to enter into unit selection.

Step 4 The unit can be selected using the following keys.

The unit display sequence is in the order of pressing the | RE-ZERO key.

MODE I key The key to sequentially display the units. RE-ZERO I key The key to select a unit. The jO | indicator is

displayed at unit selected.

Step 5 Press the PRINT key to store the units. Then the balance displays next

menu id of the function table.

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

to the weighing mode.

4. Weighing Units

Page 12

Basic operation

5. Wéighing

Cautions for the weighing operation

□ Operate your balance gently.

□ Press the RE-ZERO key to prevent possible error before placing material

on the pan (weighing material) each time.

□ Shorten the operation time as much as possible. ( Opening and closing

door, placing and removing material)

□ Temperature changes during measurement may cause weighing error.

□ Use a pair of tweezers (pincette) to avoid a temperature change that Is due

to having your hand in the weighing chamber.

□ Calibrate your balance periodically to maintain weighing accuracy. Refer

to section "T.Calibration".

□ Electrified material or magnetic body may cause a weighing error.

□ Do not press keys with a sharp instrument (such as a pencil or ball

point pen).

□ Do not drop things on the pan, or place a weight on the pan that is

beyond the weighing range of the balance.

□ Keep the area clean and dry.

□ Consider section "2. Caution" for weighing operation.

Basic Operation (gram mode)

Step 1 Calibrate your balance before use. (Refer to section "7. Calibration") Step 2 Place a container on the weighing pan, if necessary.

Press the | RE-ZERO | key to cancel net weight. The balance displays zero. Container: A vessel placed on the pan, but not to be included in the

weighing data. Step 3 Place material on the pan or in the container. Step 4 Wait for the stabilization indicator to be disipayed and read the value. Step 5 Remove the material and container from the pan.

Basic operation

page 13

5. Weighing

Counting Mode (pcs)

Selecting the counting mode

Step 1 Select the unit [p^ using the [MODE key. If the counting mode can not

be selected, refer to section "4. Weighing Units". ([p^ : pieces)

Storing a unit weight

Step 2 Press the [RANGE key to enter the sampling mode.

Step 3 If you want to select the number of items to be used for the sample, press

the [range I key (several times). It may be set to 10, 25, 50 or 100.

Step 4 Place acontaineron the weighing pan, if necessary. Pressi RE-ZERO [key

to cancel this weight,

ex.

I il [1 pcs[ is displayed in the case of 10 items.

Step 5 Place items on the pan. This number of items is the same quantity as

the number displayed (10, 25, 50 or 100).

Step 6 Wait for the stabilization indicator to come on. Press the [PRINT key to

calculate the unit weight and store it.

Counting Items

Step 7 You are now able to count the items by placing them on the pan.

Counting mode using the ACAI function

ACAI™ (Automatic Counting Accuracy Improvement) is a function that improves the accuracy of the unit weight.

Step 8 If you add a few more items, the ACAI indicator turns on.

(The ACAI indicator turns off if in overload)

Step 9 The balance re-calculates the unit weight while the ACAI

indicator is blinking. Wait and do not touch the items on

the pan until the ACAI indicator turns off automatically.

Step 10 You are now able to count items with a more accurate unit

weight.

Stepll If you add a few more items, proceed to step 8. The

balance re-calculates a more accurate unit weight.

ACAI indicator

Detectinq items

, 1,

◄

Calculating

unit weight

Counting mode

pcs

5. Weighing

Page 14

Basic operation

Percent Mode (%)

Selecting the unit of percent nnode

Step 1 Select the unit % using the MODE key. If the percent mode can not be

selected, refer to section "4. Weighing Units". ( % : percent)

Storing 100% weight

Step 2 Press the | RANGE key to enter the sampling mode.

Step 3 Place a container on the weighing pan, if necessary.

Press the | RE-ZERO | key to cancel the container weight and possible error. The balance displays I//7/7 B%

Step 4 Place the item of 100% weight on the pan or in the container.

Step 5 Press the [PRINT key to store this 100% weight.

Step 6 Remove the item from the pan.

Reading percentage

Step 7 You are now able to read the percentage based on the stored 100%

weight.

Basic operation

page 15

5. Weighing

6. Response Adjustfinent

This function stabilizes the weight value, reducing the influence on weigh

ing that is caused by drafts and/or vibration at the place where the balance is installed. This function adjusts by automatically analyzing the environ ment or by hand-operation. The function has three stages as follows :

Indicator Function table Summaries FAST MID. SLOW

RESPONSEÎrASTIIMlD.lfSlLÜWl'

fin 11 11 ft

yyijyij

Note

□ If the automatic response adjustment is to awkward, Try to refine it using

the section "Manual Response Adjustment".

^ - J

L Ü n U U

r _ 1 1

L U > 1 LI t

r . ^ J Zl

L Û n U L

Response Indicator

Fast response. Sensitive value

Slow response. Stable value

□ The response adjustment can be changed at "Condition {[and)" of

"Environment & Display {bnSi-nc)" in the function table. Refer to "9.

Function table".

Automatic Response Adjustment

This way automatically updates the response adjustment by analyzing the

influence of the environment on the weight data.

Operation

Step 1 Press and hold the [MODE | key until [RESPONSE

displayed.

Step 2 The balance analyzes the influence and updates the

response adjustment. If you want to cancel this update, press the |CAL| key.

is Press and hold the key.

RESPONSE

- Release the key.

RESPONSE

r U L ) I ... ,,, ...

Caution

Do not allow vibration or drafts to affect the balance.

Step 3 The balance returns to the weighing mode automati

cally and displays the updated response indicator.

6. Response Adjustment

Page 16

RESPONSE tvî5~l

$ u 1)} $ $ i W y.uuuu s

Adapting to environment

Manual Response Adjustment

This way updates the response adjustment manually.

Operation

Step 1 Press and hold the |MODE key until |RESPONSE! is displayed

Press the jMQDE key immediately.

Step 2 Select a stage of the response adjustment using the |MODE key. Either

FAST or MID. or SLOW can be selected.

Step 3 The balance automatically returns to the weighing mode after a few

seconds of inactivity.

Adapting to environment

page 17

6. Response Adjustment

7. Calibration

Calibration Group

The GR series has the following modes concerning calibration and calibra tion test.

□

Automatic Self Calibration

□

Calibration using the internal weight Calibration using an external weight

□

Calibration test using the internal weight

□

Calibration test using an external weight

□

Correction of the internal weight value

□

Note

□ Calibration is controlled by the parameters of "Permission or prohibition".

Refer to section "8. Function Switch and Initialization".

□ The weight which can be used for calibration is called "the calibration

weight". The weight which can be used for calibration test is called "the target weight". The weight which you have is called "the external weight".

Caution

□ This calibration achieves the adjustment for accurate weighing. It is

necessary to perform calibration in the following case.

• When the balance is installed for the first time.

• When the balance has been moved.

• When the ambient environment has changed.

• For periodical calibration.

□

Prevent vibration, drafts, and ambient temperature changes from the influence for the balance during calibration.

□

The data for CLP (Good Laboratory Practice) can be output using the RS232C interface, when the "CLP output (,F q )" of "Data output {do u b)" is set to " /" orRefer to section "9. Function table".

This indicator means "the balance is measuring calibra tion data". Do not allow vibration or drafts to affect the

balance while this indicator is displayed.

Caution using an External Weight

□ The accuracy of an external weight can influence the accuracy of weighing.

Product GR-120 GR-200

GR-300

GR-202

7. Calibration

Usable external weight

lOOg, 50g 200g,lOOg 200g, 300g 200g, 100g

Page 18

Adjustable range

+15.9 mg ~ -15.0 mg

Adapting to environment

Automatic Self Calibration

This function automatically calibrates the balance, when the balance

detects an ambient temperature change.

When the balance detects a change in ambient tem perature, this indicator blinks and automatic self calibra tion is required. If the balance is not used for several

minutes with this indicator blinking, the balance pre

forms automatic self calibration. The environment will

affect the time that the indicator blinks.

r i;ii

I. III.

This display means "the balance is measuring calibra tion data". Do not allow vibration or drafts to affect the

balance while this indicator is displayed.

Advice

You can use the balance while the indicator blinks. But, it is recommended that to maintain the best accuracy, stop using the balance and confirm that there is nothing on the pan when the indicator starts blinking.

Caution

□ Do not place anything on the weighing pan during automatic calibration.

Control of Automatic Self Calibration

Automatic self calibration is controlled by a parameter in "Permission or prohibition". Refer to section "8. Function Switch and Initialization"

n n

II IJ

i 1 i i 1 ?

Adapting to environment

-Automatic Self Calibration 0 : Not used

1 : Used

page 19

7. Calibration

Calibration Using the Internal Weight

This function calibrates the balance using the internal weight.

Operation

Step 1 Connect the AC adapter and warm up the balance for

at least one hour with nothing on the weighing pan.

Step 2 Press the CAL| key to start calibration.

Step 3 The balance displays\[nj ~ m\ and performs calibra

tion. Prevent vibration and drafts from affecting the

balance.

Step 4 Ifthe "CLP output ( ,n/-o)" of the "Function Table" isset

to 232C interface.

Step 5 The balance will automatically return to the weighing

mode after calibration.

or "P", "Calibration Report" is output from RS-

Step 6 Test the accuracy of weighing using the calibration test

function or by using a certified test weight.

Control of this Calibration

Calibration using the internal weight is controlled by a parameter in "Permission or prohibition". Refer to section

"8, Function Switch and Initialization".

n n M ( i

II U M M

-----------A--

-Calibration Using the internal Mass

0 ; Not used

1 : Used

7, Calibration

Page 20

Adapting to environment

This function tests the balance accuracy using the internal weight.

Operation

Step 1 Connect the AC adapter and warm up the balance

for at least one hour with nothing on the pan.

o nnnnri

ULIUUU 9

Step 2 Press and hold the CAL key until display-

ing

I I

L L in

and then release the key.

Step 3 The balance measures the zero point.

Prevent vibration and drafts to affect the balance.

Step 4 The measured zero point data is displayed.

Step 5 Ready for the internal weight measurement.

Step 6 The balance measures the internal weight.

Prevent vibration and drafts to affect the balance.

Step 7 The internal weight data is displayed.

Step 8 The balance informs you when the calibration test

is finished. If the "CLP output ( ,n/-o)" of fh® "Function Table" is set to " /" or "P", "Calibration

Test Report" is output by the RS-232C interface.

Press and hold the key/C

f ra

-Release the key

______

innnrmn

C UUJJLIUU 9

GLP output CalibrationTest Report^

r r

t L

r r

1- .

nnnnn

UUUUU 9

r r

L L

I OU

in g

)■

Step 9 Thebalancewill automatically return to the weigh

ing mode after the calibration test is finished.

Adapting to environment

page 21

O nnnnn

UUUUU 9

7, Calibration

4^ Calibration Using an External Weight

This function calibrates the balance using an external weight. The weight to be used for calibration is called "the calibration weight". The weight which you have is called "the external weight".

Operation

Step 1 Connectthe AC adapter and warm up the balance

for at least one hour with nothing on the pan.

nnrinn u.uuuu g

Step 2 Press and hold the CAL key until displaying

r n 1

L ‘ 1 L Û U L

Step 3 The balance displays

and then release the key.

r n I

L ' I L

□ If you want to change the calibration weight

value, proceed to step 4.

□ If you use the stored calibration weight value

in the balance, proceed to step 5.

Step 4 Press the ¡RANGE | key and adjust the calibration

weight value using the following keys.

RE-ZERO

key

The key to set the value of the digit selected.

RANGEi key

The key to select the digitto change value.

PRINT key

The key to store a new weight value and return to step 3.

CAL key

The key to cancel this change

and return to step 3.

Product Usable weight GR-120 GR-200

GR-300

GR-202

lOOg, 50g 200g, 100g -f15.9 mg ~ -15.0 mg 200g, 300g 200g, 100g

Adjustable range

Press and hold the key

1 ro. . ' <70

■Release the key

=zzz=z=zz:>

ex. calibration weight value = 200.0017g

Initial calibration weight value is

200.0000g at GR-200.

[ fit Out

r 01 n

L riL LI

Note Digits cyclically change using the ¡RE-ZERO key.

ex. 0mg-^-h15mg-^-15mg-^0mg

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

the jPRÎÏ^ key. The balance measures the zeropoint. Prevent vibration and drafts from affecting the balance.

7. Calibration

Page 22

r o> n

LUL U

To Next Page)

}

Adapting to environment

Step 6 Place the displayed calibration weight on the pan

and press the PRINT key. The balance displays the measured calibration weight. Prevent vibra tion and drafts from affecting the balance.

Step 7 Remove the weight from the pan after the balance

displays |£nd !■

Step 8 If the "GLP output ( ,n/-o)" of the "Function Table

" is set to " /" or "P", "Calibration Test Report" is output by the RS-232C interface.

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

f i

GLP output Calibration report

[~ncl

'rnn

1 u u

Step 9 The balance will automatically return to the weigh

ing mode after calibration.

StepIO Test the accuracy of weighing using the calibra

tion test function with a certified test weight.

Control of this Calibration

Calibration using an external weight is controlled by a parameter in "Permission or prohibition". Refer to section "8. Function Switch and Initialization"

n n Î I i !

n ' U I I ! !

-Calibration Using the External Mass u : Not used

I : Used

nnnnn

U.ULIUU

Adapting to environnnent

page 23

7, Calibration

Calibration Test

This function tests the balance for the accuracy using an external weight. A weight which is used for the calibration test is called "the target weight". The weight which you have is called "the external weight".

Operation

Step 1 Connect the AC adapter and warm up the balance

for at least one hour with nothing on the pan.

Step 2 Press and hold the CAL key until displaying

LI U L

Step 3 The balance displays

and then release the key.

□ If you want to change the target weight value,

proceed to step 4.

□ If you use the stored target weight value in the

balance, proceed to step 5.

Step 4 Press the j RANGE key and adjust the calibration

weight value using the following keys.

RE-ZERO [ key

The key to set the value of the digit selected.

RANGE key

Thekeytoselectthedigittochange value.

PRINT key

The key to store a new weight value and return to step 3.

CAL]key

The key to cancel this change

and return to step 3.

Product Usable weight Adjustable range GR-120 100g, 50g GR-200 200g, 100g -1-15.9 mg ~ -15.0 mg GR-300 200g, 300g GR-202

200g, 100g

Press and hold the key

ciuc

-Release the key

,Viod

ex. target weight value = 200.0017g

Initial target weight value is 200.0000g at GR-200.

Note Digits cyclically change using the , RE-ZERO | key.

ex. 0mg^-h15mg-^-15mg-^0mg

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

the PRINT key. The balance measures the zero-

point and displays it. Prevent vibration and drafts from affecting the balance.

7. Calibration

Page 24

r r n

L L LI

rinnnn

u.uuuu

(To Next Page)

Adapting to environnnent

step 6 Place the displayed target weight on the pan and

press the PRINT | key. The balance displays the measured target weight and displays it. Prevent vibration and drafts from affecting the balance.

Step 7 Remove the weight from the pan after the balance

displays

L 11 U

Step 8 If the "GLP output ( ,n/-o)" of the "Function Table

" is set to " /" or "P", "Calibration Test Report" is output by the RS-232C interface.

Step 9 The balance will automatically return to the weigh

ing mode after calibration.

innrtri 11

LUU.UU } i

cno

GLP output Calibration test report

"end

r 1

nnnnn UJJLiUU 9

Adapting to environment

page 25

7, Calibration

[JC

Correcting the Internal Weight Value

The GR series can correct the internal weight value within +1.5 mg. The

initial internal weight value of the GR-120 is 100.0000 g. The initial internal weight value of the GR-200, GR-300 and GR-202 is 200.0000 g.

Weighing the same weight

The internal weight is corrected to +0.6 mg. The balance is calibrated with the internal weight.

Operation

Step 1 Turn off the display using the ^ON:OFF key.

vr'.'ii - ;' ■

___________

Step 2 Press the[orrOFF I key while thePrange [key

and [ PRINT I key are pressed and held. Then

the balance displays

n r

r I

Step 3 Press the PRINT key. Then the balance displays

the switches.

Step 4 Set the following switches to " /".

|RETERO| key The key to select the setting of

the switch.

~RANGe1 key The key to select the switch to

change the setting.

0 . I y y y I

II (XXX/-

Switch for the function table Switch for the internal weight

Step 5 Press the PRINT key to store the new setting.

The balance will return to the weighing mode.

While press q

hold these keys^

Press the key

n n I I I I

II U I f I I

0. f ,

If I ^

nnnnn

LI LIU LIU

■ I f

Step 6 Press and hold the , RANGE key to enter the

function table and release the key when

is displayed.

Step 7 Press the [RANGE key several times to display

; I

L 3 I II

7, Calibration

Page 26

L O L “

U ‘ I J > > I c

Adapting to environnnent

Press and hold the keyP

(JhNexTPage)

LOCC^.

CinjI Hi

r r L J III

Step 8 Press the | PRINT

for correcting the internal weight value.

Step 9 Correct the internal weight value using the follow

ing keys.

RE-ZERO, key The value is selected.

PRINT^i key The new value is stored and

CAL key This correction is canceled and

Step 9 Press the CAL key. The balance will return to the

weighing mode.

Step 9 Press the |CAL | key to calibrate the balance.

key to enter into the procedure

(-1-1.5 mg ~ -1.5 mg)

is displayed.

Control of the Correction

Correction of the internal weight value is controlled by the parameters in "Permission or prohibition". Refer to section "8. Function Switch and Initializa tion"

ri (Mil

n lint

-Function table u : Change not permitted

-Correction of the internal weight u : Not used

i : Change permitted

I : Used

Adapting to environment

page 27

7, Calibration

8. Function Switch and initiaiization

—'-r'

Permission or Prohibitio

The balance stores parameters that must not be changed carelessly (ex. Calibration data for precision weighing, Data for adapting to environment, Control data for RS-232C interface, etc.). There are five switches for the

purpose of preserving these parameters. Each switch can select either "permission" or "prohibition". The "prohibition" protects careless operation.

Switches

n n I I I I

II LI I I I I

(Factory setting)

Function Table

[I : To inhibit change to the function table.

/ : To permit change to the function table.

Calibration with the Internal Weight

0 ; To inhibit calibration.

I : To use calibration.

Calibration with an External Weight

0 : To inhibit calibration.

/ : To use calibration.

Automatic Self Calibration

[! : Not used

/ : Used

Correcting the Internal Weight

0 : To inhibit correction.

/ : To use correction.

Operation

Step 1 Turn off the display using the ON:OFF| key Step 2 Press the ON:OFF key while the

pressed and held. Then the balance displays PS

Step 3 Press the PRINT key. Then the balance displays the switch settings. Step 4 Set the switches using the following keys.

RE-ZERO I key The key to change the setting of the switch.

RANGE key The key to select the switch to change the setting.

print] key The key to store the new setting.

CAl] key The key to cancel this operation.

8, Function Switch and Initialization Page 28

RANGE key and PRINT key are

Adapting to environment

in p |.y^i

Initializing the Bal

This function returns the following parameters to factory settings.

□ Calibration data.

□ Function table.

□ The 100% weight

□ The data that is stored in the balance using data memory function.

□ External calibration weight and target weight.

□ Switch settings for "Permission or prohibition".

Operation

Step 1 Turn off the display.

" ■№ Nl*>

Step 2 Press the [q]^FF I key while the [range ¡key While press

and PRINT I key are pressed and held. Then

hold these keyd^

the balance displays \PS

Press the key(

Step 3 Press the [RANGE key to display f /. r

Step 4 Press the PRINT key. (If you want to cancel this

operation, press the CAi^ key)

Step 5 Press the , RE-ZERO | key

Step 6 Press the PRINT key to initialize the balance.

The balance will automatically return to weighing

mode.

I L r no

rt . r ^

LL I UQ

r I

UlO

o nnnnri

LtULIUU

Adapting to environment

page 29 8. Function Switch and Initialization

9. Function Table

The operation of the "Function Table" is to read or rewrite the parameters that are stored in the balance. These parameters are stored until the next change even without power applied.

Caution

The balance may not work effectively when a combination of param eters and environment are not proper. Confirm the parameter before

changing it.

Structure and Sequence of the Function Table

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

parameter is the last parameter that is displayed in the sequence. New parameters operate upon the balance after pressing the ¡PRINT key

Example

This example sets "use" to "Data memory" and "every minute" to "Inten/al time".

....■; —

.„■■ —*. ............... .. ........^ -

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

■

Start, From weighing mode

End, To weighing mode

Control of this Function Table

The function table is controlled by a parameter in "Permission or prohibi tion". Refer to section "8. Function Switch and initialization"

Press some keys several times.

tern

"Data memory"

Parameter

"Use"

Parameter

Every minute"

n M M I II I M M

9, Function Table

-Function table u : Change not permitted

I : Change permitted

Page 30

Functions

Display and Keys of the Function Table

The "o" symbol is displayed at a selected parameter.

When the key is pressed and held in weighing mode, the balance enters the "function table mode". The key to change the class or item in the function table mode.

The key to select the parameter, when the balance

displays an item.

PRIN

CAL

The key to move to an item from the class, when the balance displays a class. The key to store new parameters and display the next class, when the balance displays an item.

The key to cancel new parameters and display the next class, when the balance displays an item. The key to exit the function table mode, when the

balance displays a class.

Functions

page 31

9, Function Table

Details of the Function Table

Class

1 П Г г

О 1 1 _l 1 1 1 L

Environment, Display

1 1

LI U LI L

Data output

Item

r /

L U ‘ 1 LI Condition

j t ~ b

stability band width

1 L ‘ L

Zero tracking

r n 1

J 1 LI

Display update rate

n _ f_

1 1 1 L

Decimal point

1 u 1 1

Automatic start

ri 1

1 1 /_

Data output mode

Param eter

Г/

• 1 ~l

• 1

“/

• 1 ri

• LI 1

1 П

* LI

1 П

• U 1

1 П

• LI

~l L

Summaries

Fast response, Sensitive value ; Common data of "Response

i adjustment".

Slow response and stable value i

Stable when within ±1 digit j The stability indicator lights when

\ the display fluctuation is within

Stable when within ±3 digit the range per second.

OFF ; The function to keep zero display

ON ;by tracking zero-drift.

Normal, 5 times/second ; The period to refresh the display. Fast, 10 times/second Point (.) ; The form of decimal point. Comma (,) OFF ; Connecting adaptor, the display ON i turns on without key operation. Key mode ; Data is output or stored with

i PRINT key and stability indicator.

Auto-print mode A ; Data is output or stored when the

(Standard value is zero) j display value is stable and meets

Auto-print mode В : the conditions of p,p - p, pp-p

(Standard value is last and standard value,

stable value)

n n n

n r 1

Auto-print polarity for mode A or B

n n 1

III LI

Auto-print difference for mode A or B

1 n L n

0 i~l L 1 1

Data memory function

1 l~l t

Interval time for Data memory function

Stream mode / Data is output continuously.

Inteval memory mode ; In case of ,jPt P !,

Data memory function is used.

In case of o'/i't-T [1,

• LI

Plus polarity : Display value > Standard value

Minus polarity i Standard value > Display value

“/

Both polarities (Absolute value) i Display value > Standard value о

: Standard value > Display value

• }

• LI

■/

П 1

г и

10 digit i Difference between standard

100 digit : value and display value

1000 digit Not used ; Relation 1, mt.o'-no

Use

Every Measurement Every 2 seconds , Interval time is selected on Every 5 seconds ^Prt j,dPtn /■

Every 10 seconds Every 30 seconds Every 1 minute Every 2 minutes Every 5 minutes Every 10 minutes

9. Function Table

; factory setting. *; "Digit" is the unit ot minimum display.

Page 32 Functions

Class Item

/ $

Q U U L

Data output

r r

J 1

Serial Interface

/ r r

O 1 n c

Specific gravity measuring mode

U ~ > 1 LI

Data number output

n 1 1 r r

• U -.1 L

Data pause

n t r 1 1 L '

Auto feed

1 n r u

GLP output

n 1

'll o

Zero after output

1 n r

U ' 3

baud rate

f 1 n

LI L ' ‘

Length, Parity bit

L L

Terminator 1 tin r

L ' C Data format

t_ 1 1 n

L LI 1

Receive time

r r 1

L ' L LI

<AK> and error code

L L 3

CTS control

1 1

L U 1 ' 1

Liquid density

Param eter

• u

• LI 1

1 n

• U 1

• LI 1

• L ~l

1 1

• LI

“/

1 1

* /

• LI

1 n

• LI

• n

Summaries

No output Refer to section "11, Data memOutput ; ory function". No pause ; Selection of output interval. Pause (1,5 second) Not used ; Selection of paper feed after Use i printing.

No output

AD-8121 format ; The type of GLP data output

Data format Not used Use

600 bps

1200 bps 2400 bps 4800 bps 9600 bps 7 bits, even parity check

7 bits, odd parity check

8 bits, no parity check

CR LF iCR : ASCII code ODh

CR ; LF; ASCII code OAh

A&D standard format

DP format ; Refer to section "Explanation

KF format ; of data format"

MT format

NU format

No limit i Waiting time during a command.

For one second

No output ; AK ; ASCII code 06h

Output

Not used Using CTS and RTS ; Keep the RTS line (active) high

; while the computer receives data

i CTS low will be set if if is busy. Enter the water temperature, i Available only when the spcitic graEnter the density directiv ^ fTieasuring mode is selected,

tnter me aensity aireciiy. , "i3.Specific gravi-

I ty (density) measurement".

u n /1 Unit

Lb in

Correction of internal weight

1 u

ID number

Caution

When the baud rate is set to 2400bps or less, the output rate is slower

than the display update rate and the balance may not transmit the data

completely (and transmits it intermittently).

Functions

Refer to section "4.Weighing Units"

Refer to section "7.Calibration"

Refer to section "10.ID number and GLP"

• : factory setting.

page 33

9. Function Table

Explanation of Item "Environment, DispI

Condition { L ond )

“ - ^ J I I

L U I I U U

L U ‘ I LI L

This parameter is for sensitive response to the fluctuation of

a weight value. Use for target weighing of powder, weighing of a very light sample or weighing requiring quick response.

This parameter is for stable weighing with slow response. Use

to prevent a weight value from drifting depended on the

balance location.

Stability band width ( St - b )

This item controls the width to regard a weight value as a stable value.

When the fluctuation per second is less than this parameter, the balance displays the stability indicator and outputs or stores the data. This param eter influences the "Auto-print mode"

This parameter is for sensitive response of the stability

indicator. Use for exact weighing.

p This parameter ignores slight fluctuation of a weight value.

Use to prevent the weight value from drifting.

Zero tracking ( t <- c )

This function traces zero point drift and keeps a zero display automatically, when the weighing value drifts due to changes in the environment.

t r r 0 The tracking function is not being used. Use for weighing of

J a very light sample.

hrr I The tracking function is used.

Display update rate ( SPo' )

The display update rate influences "Baud rate", "Data pause" and "Stream

mode".

Decimal point ( t't )

The decimal point form can be selected.

Automatic start ( p

When the AC adapter is connected, weighing is automatically started without key operation. Use for a built-in balance in a system. Warm-up for

at least one hour is necessary for accurate weighing.

o n

)

9. Function Table

Page 34

Functions

'LH

lanation of Item "Data output mode

The SPRINT key can be used at any time for transmitting data.

Key Mode

When you press the ¡PRINT j key and the display value is stable, the balance outputs the weighing data and the display blinks one time.

Required setting dout Prt 0 Print key mode

Auto-Print Mode A

When the display value is stable and meets the conditions of "Auto-print

polarity", "Auto-print band" and standard value (of zero point), the balance outputs the weighing data. If you press the [PRINT key, the balance outputs the data and the display blinks one time.

Required setting

Example

Auto-Print Mode B

When the display value is stable and meets the conditions of "Auto-print

polarity", "Auto-print band" and standard value (of last stable value), the balance outputs the weighing data. If you press the| PRINT ¡key, the balance outputs the data and the display blinks one time.

Required setting daub Prt c Auto-print mode B

Example "Transmitting the data of each operation."

Stream Mode

The balance outputs the weighing data continuously.

Required setting dout Prt 3 Stream mode

U LI LI L

J - L

LI LI LI L

_ L

n n n

nr " r

Auto-print mode A Auto-print polarity

u u LI c nP - b Auto-print band

"Weighing and removing one item."

dout PiP-P Auto-print polarity do LI t nP - b Auto-print band

U LI LI L

I I

LI O LI L

I n r r

LI I I J ' I I L

J 11

I ri I n n

LI I I L I I LI

r n I

J I Cl

L O ~

LI I J

Data memory function is not used. Display update rate Baud rate

Caution

Functions

Example

"Monitoring data on a computer"

When the baud rate is set to 2400bps or less, the display update rate

is faster than the output rate and the balance may not transmit the data completely (and transmits it intermittently).

page 35

9. Function Table

Interval Memory Mode

This is the data memory function mode. Weighing data is periodically

stored in the balance. The interval memory mode can not be used, while stream mode is used.

Required setting

Example

LI LI LI L

"Periodical weighing without computercommand and output

n _ L

I I I

I n I n

Q n L ‘ t

Stream mode Data memory function is used.

Interval time

ting all of the data to a computer at one time"

Explanation of Item "Data format"

A&D standard format f, ,/-

This format is used when the peripheral equipment is capable of receiving A&D format. If an AD-8121 is used, set the printer to mode 1 or 2.

□ This format consists of fifteen characters (excluding the terminator).

□ A header of two characters indicates the status of the stability. □ The plus sign is placed before the data, when the data is zero or positive. □ The weight data uses leading zeros. □ The unit has three characters.

i + l 00

0| .

Header Data Unit Terminator

I I n r

J L

u s 0 L Q

Stable header Unstable header Overload header

Stable header for counting mode

D.P. (Dump print) format 5 toPF I

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

□ This format consists of sixteen characters (excluding the terminator). □ A header of two characters indicates the status of the stability without

overload. □ The polarity sign is placed before data, if not zero or overloaded. □ The weight data has spaces in place of the leading zeros. □ The unit has three characters.

iw!tU -

\/\ /\

Header Data

w T

Stable header Unstable header

s T

Stable header for counting mode

1 |2

7 i 8

,_,

gpR Lpi

Unit Terminator

9, Function Table

Page 36

Functions

KF format f, , /-

This is the Karl-Fischer moisture meter format, and is used when the

peripheral equipment can only communicate using this format.

□ This format consists of fourteen characters (excluding the terminator). □ This format has no header characters. □ The polarity sign is first, if not zero or overloaded. □ The weight data uses spaces in place of leading zeros. □ This format outputs the unit "g" only for a stable value.

/ I I I I г

i__II L

1_ ,_i

0 1 2 7 8

Data Unit

CrILf

Terminator

>''

;__1

L_j

Stable value

1_1

Unstable value

MT format S /<'" t j PE

□ This format has a two character header. □ The polarity sign is used only for negative data. □ The weight data uses spaces in place of the leading zeros. □ The character length of this format changes dependent upon the unit.

0 . 1

Header Data

2 7

^ Q|Cr

Unit Terminator

Stable header

D: Unstable header

I Overload header

NU (numerical) format 'j J-

/ I I n г

I__II L

This format has only numerical data.

□ This format consists of nine characters (excluding the terminator). □ The polarity sign is first. □ The weight data uses leading zeros.

0 0

2 7

Data Terminator

Data number format Pout cl'no I

This data number format is output just before data is transmitted to the RS-

232C interface.

□ This format consists of six characters (excluding the terminator).

0 0 1 Cr

0 .

Data number Terminator

/ /

Functions

page 37

9, Function Table

stable

xamples of data forma

w T

___

s + 0 0

..__i

n 1 ~l ~l n

U. 1 L 1 0 g

A&D

DP. KF MT NU

+ 0

0 0

1 2 7

+ 0 1 2 7

2 1 8 g

8 Cr

7 2

7 '-F

___

, I

___

8 7

>-F

___

Unstable

I n ~l r n n

I LI.JO lU

A&D DP KF MT NU

Overload a&d

Positive error pp

KF MT NU

A&D

Negative error

_ r

DP KF

MT NU

L_J

s '

L„_J L„J L.„^

1 +

S + 9

9 9

;

___

9 9

L_J

1 8 3

+ 9 9 9 9 9

Lp 9 9 9 9 9

9 9 9 9 l9

;

___

8 3

1 8

8 3

9 0

- ! E

9 9 9 9 19

U_J

■-F

9 E + 1

L_J

9 E + 1

1_! ;

___

0 9 0

l_U

L_J

1__1

____

L|r

9 Cr

9 Cr ,_. 1_!

•-F

L^f

Data number

L_. Space, ASCII 20h

Carriage Return, ASCII ODh

'"F Line Feed, ASCII OAh

9. Function Table

N| 0 0 0

____

Page 38

1 Cr

0 0 0

Functions

Units

Symbol

A&D

DP.

Gram mode

Milligram mode Counting mode Precent mode Ounce (Avoir)

Troy Ounce

Metric Carat Momme Pennyweight Grain

Tael (HK general,Sing.) Tael (HK, jewelry) Tael (China) Tael (Taiwan)

pcs

DZt

mom

dwt

1_1

L_,

1_1m 1_1

0 z

1_i

0 z

!_1 m 0 m d

w t

i_1

G N

1_1

T T

1_1

T L

!_1

g g

t t

L L

1—f \—1

1_1

L_1

0 z

1_1

0 z

U_J

m d

1_1 1_1

i_1 1_1

t c t

0 m

w t

G N 1_! T

1_!

u_,

1_!Pc s 1_!

% i_1

0 z

1_!

z t

i_1

L_.

0 m

L__l

d w t

1_1

t 1 h

1_1

t 1

1_1

t 1 c

1_1

1_!

1_1

i_1

p C

L_,

1_,

0 z

1_1

0 z c t

1_1

m o

!_!

w t 1_1G N L_| t 1

t 1

1_1 1_(

t 1 t 1

1_t

Tola (India) Messghal Density

Space, ASCII

20h

1_11_1 t

m| e

i_1DS

1_1 t

e s

1_1

1_!

1_i

1_1

D S

i_f

1_1

^1 t

L_j

1_1

t 0

Functions

page 39

9. Function Table

[cr~rr\=7'l'c) >]| rr'o'cy=)7.

□ The ID number is used to identify the balance when Good Laboratory

Practice (GLP) is used.

□ The ID number is output on the "Calibration Report", "Calibration Test

Report" and "Title block".

□ The GLP output format is selected at the "GLP output ( ,n/-o)" of the

"Function Table".

□ The balance can output the following reports for GLP.

"Calibration Report" of the calibration using the internal weight. "Calibration Report" of the calibration using an external weight. "Calibration Test Report" of the calibration using the internal weight. "Calibration Test Report" of the calibration using an external weight. "Title block" and "End block" for weighing data.

•■ ...i ii;{Miii I

Setting of the ID Numbe

Step 1 Press and hold the RANGE key to display

Step 2 Press the RANGE key several times to display

Step 3 Press the j PRINT key. You can to set the ID number using the following

keys.

RANGE key The key to increment the digit.

RE-ZERO key The key to select the character of the digit. Refer to the

following table for the "Display Character Set".

PRINT key The key to store a new ID number and proceed to the next

class of the function table.

CAL key

The key to cancel the new ID number and proceed to the next class of the function table.

Step 4 Press the CAL key to return to the weighing mode.

I n r r

Q I I j I I i C

Display Character Set

0 1

2 3 4

11“i

5 6

7 8 9

rLin \n

1 1

1 iU

10, The ID Number, GLP Report

A B

Space

c D E F

LIrL

Page 40

G H

11 1

J K L

1 j| /

L L

n n

N oip

Ll >

R s TuV w

/“

LI LI

Functions

Set the following parameters to output the report.

□ If the report is printed, set the "GLP output ( ,nh o)" to " /". The AD-8121

printeris used in this explanation. Referto "14. Connectionto the AD-8121". The AD-8121 uses MODE 3.

□ The report is output to the RS-232C interface of a computer, set the "GLP

output ( ir,f-u)"\0"P".

Calibration report using the internal weight

Key operation

Step 1 Press the ¡CALÍ key to display

automatically.

r n I

L » i L Ml

. The balance calibrates

Step 2 If the calibration report is output,

r / n

U L

is displayed and the GLP data

is output.

Step 3 The balance returns to the normal weighing mode automatically.

AD-8121 format

I I I i~ U I

M M M

MO D EL

R - 21313

S-- N 123 456 7 8

OBC

I D

^3^ S::’ ' 13 1313

DOT E

DEE EH

13 E :: 113 PM 0 0IE3 i-3 ¡E T‘ E13^ <

I N ]■' „ 3

S16HOTORE

— Factory — — Product —

Serial number-

— ID number —

------

Date

---------

------

Time

---------

Calibration type

— Signature —

Data format

/ '1 ‘ Ü L

MODEL GR-Z00<T£RM> S/N lZ345678<r™> ID ABCDEFGH<rERM> DATE<r£RM>

<TERM>

TIME <TERM>

<TERM>

CALIBRATEDCINT. )<T£RM> SIGNATURE<r£flM>

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

<TERM>

Space mark, ASCII 20H.

<TERM> Terminator mark, Cr Lp c^

<TERM>

Cr Carrige return mark, ASCII ODH

>-F Line feed mark, ASCII OAH

A & D<TERM>

<TERM>

Example of GR-200

Functions

page 41

10. The ID Number, GLP Report

Calibration test report using the internal weight

Key operation

Step 1 Press and hold the CAL key until displaying [ [

Step 2 The balance displays T | and performs the calibration test automatically.

Step 3 The zero point is measured and this value is displayed.

Step 4 The internal weight is measured and this value is displayed.

Step 5 If the calibration test report is output , [, j P is displayed and the GLP

data is output.

Step 6 The balance returns to the weighing mode automatically.

Command operation

Step 1 Transmit the TST command to the balance.

, Release the key.

Step 2 The balance performs the calibration test automatically.

Step 3 If the callbr'-tion test report is output, the GLP data is output.

Step 4 The balance returns to the weighing mode automatically.

AD-8121 format Data format

III' LI I

a K: [>

(5 i?

...

£; H 12; ::5 ;5 2.7^^ 77

i: i)

77 77 77 4- / iZi 77

775;: 21 4 2 PM Cii:

......

T EST l IN I „ >

77 CT 77 77 7..

77;. ;7;; ;77 ;77; ;Z;

77 ;7; ;7; = ;7; 77; ;7; 77:

:2 I ;3 77 77 T 77

7777

77 77

; ;

;

— Factory — — Product —

Serial number

— ID number -

-----

Date ---------

-----

Time

— Cal. test type

- Zero point value Target mass value-

Target weight-

Signature

--------

I I I I U L

MODEL GR-Z00<rEflM> S/N 12345678<r£f?M> ID ABODE FGH<rERM>

DM i<TERM> <TERI,E

TIME<TERM>

<TERM>

CAL .TESTCINT. )<rER/M> ACTUAL<rERM>

0.0000 Q<TERM>

+ 200.0002 g<TERM>

TARGET<rERM>

+ 200.0000 g<TERM>

SIGNATURE<TERM>

^ Space mark, ASCII 20H.

cTERM> Terminator mark, ‘-f or ^r.

Cr Carrige return mark, ASCII ODH

>-F Line feed mark, ASCII OAH

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

<TER!/> <TERI.‘>

A & D<TERM>

^TERM>

Example of GR-200

10, The ID Number, GLP Report

Page 42

Functions

Calibration Report using an external weight

Key operation

Step 1 Press and hold the iCAL| key until displaying

r n I

L I I L 0 U c

Release the key.

Step 2 The balance displays \[h!i

□ If you want to change the calibration weight value, proceed to step 3. □ If you use the stored calibration weight value in the balance, proceed to step 4.

Step 3 Press the [RANGE key and adjust calibration weight using the following keys.

RE-ZERO I key The key to set the value of the digit selected. RANGE key The key to select the digit to change value.

№INT I key The key to store a new weight value and return to step 2.

CAlj key The key to cancel this change and return to step 2.

Step 4 Press the PRINT key. The zero point is measured and this value is

displayed.

Step 5 Place the calibration weight on the pan and press the PRINT key. The

weight is measured and this value is displayed.

Step 6 Remove the weight after [£noJ is displayed.

Step 7 If the calibration report is output

r / n

LI L I

is displayed and the GLP data

is output.

Step 8 The balance returns to the weighing mode automatically.

AD-8121 format

_ r I

I I I I LI I

Data format

f n I" O L

— Factory —

i ii) i;i [.. (5 F?

1-i 1 ;;F;;3 4F:F6 7TE;

^ iT3C:[:MEF-HiH

iFj !4 T FF: F;f FF; .■■■■ FF: .:]■ ’ FFi FF^ 1 -F FF: :;F: ;; 3- FFf F" i n

FF:FT,TFFF:FEiTT EF:F(F:::TT. F^

FFiT .. ¡JF’ T RFiT

......

FF: i:i FFi

- Calibration type

— Product —

Serial number

— ID number -

-----

Date

-----

Time

Calibration weight

--------

---------

MODEL GR-200<T£flM> S/N 12345678<TERM> ID ABCDEFGH<r£RM> DATE<rtfiM>

CALIBRATEDCEXT.)<T£RM> CAL.WEIGHT<rERM>

— Signature

SIGNATURE<rE,RM>

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

-- Space mark, ASCII 20H.

<TERM> Terminator mark, or S.

<TERM>

Cr Carrige return mark, ASCII ODH

Lp Line feed mark, ASCII OAH

A & D<TERM>

-^200.0000 g<TERM>

Example of GR-200

Functions

page 43

10, The ID Nunnber, GLP Report

Calibration Test Report using an external weight

Key operation

Step 1 Press and hold the CAL |key until displaying rr out . Release the key

Step 2 The balance displays

Г/

□ If you want to change the target weight value, proceed to step 3.

□ If you use the stored target weight value in the balance, proceed to step 4,

Step 3 Press the RANGE key and adjust target weight using the following keys.

RE-ZERO I key The key to set the value of the digit selected. RANGE j key The key to select the digit to change value. PRli^ key The key to store a new weight value and return to step 2. CAL I key The key to cancel this change and return to step 2.

Step 4 Press the ¡PRINT key. The zero point is measured and this value is

displayed.

Step 3 Place the calibration weight on the pan and press the PRINT key. The

weight is measured and this value is displayed.

Step 4 Remove the weight after J

is displayed.

I I LI

Step 5 If the calibration test report is output , ¡[ij Pj is displayed and the GLP

data is output.

Step 6 The balance returns to the weighing mode automatically.

AD-8121 format Data format

- c - I

I I I I LI I

a Я; D

i5 fi;.2: :э

S-T2 1

i: [)

[) ;2 'T FI '2 FF: .■■■' FF: ^4 •■■■ Fi FF^

1 4- s F5 F;i s 2: ¿F i- ri

FFLHL . TE:FF:T<FF22T2.

ft: t fj f:l

-r FF; ij F:i „ F;i FFi FFi FF; 'FF 'FF^

— Factory — — Product —

Serial number— ID number — Date

-----

— Cal. test type -

Zero point value

-Target mass value Target weight

FF;

--------

Time —

I n I о c

MODEL GR-Z00<TERM> S/N 1Z34567 8<TERM> ID ABODE FGH<TER/M>

D AT E<TERM>

<TERM>

Т1МЕ<ГЕЯ/И>

<TERM>

CAL.TEST(EXT.)<TERM> ACTUAL<TERM>

+Z00.0002

TARGET <TERM>

+200.0000

Signature

-- Space mark, ASCII 20H.

<TERM> Terminator mark, '-f or ^r.

SIGNATURE<rERM>

-------------------------------------<TER/W>

Cr Carrige return mark, ASCII ODH

Lp Line feed mark, ASCII OAH

A & D<TERM>

0.0000

Example of GR-200

g <TERM>

10, The ID Number, GLP Report Page 44

Functions

Title Block and End Block

Use

When a weight value is recorded as the GLP data, the GLP report can put the weighing value between "Title block" and "End block".

Caution

If data memory function is used, The "Title block" and "End block" can not be output. Use MODE 3 of the AD-8121.

Key operation

Step 1 Press and hold the [1^’RINT j key to display jS t nr t \ and release the key.

The "Title block" is output.

Step 2 The weighing data is output.

Step 3 Press and hold the I PRINT key to display r£r£nr/land release thekey.

The "End block" is output.

The "Title block" and "End block" are output alternately by pressing the

PRINT key.

AD-8121 format

I I I I U I

Title block

— Factory — — Product —

Serial number

— ID number —

-----

Date

---------

Time

Weight data

Time

Signature

End block

^ Space mark, ASCII 20H.

<TERM> Terminator mark, Cr Lp or^R.

Cr Carrige return mark, ASCII ODH

Lp Line feed mark, ASCII OAH

Functions page 45

Data format

/ n '■ U L

A & D<TERM>

MODEL GR-Z00<T£RM>

S/N 1Z345678<T£RM> ID ABCDEFGH<TERM> DATE<TERM>

<TERM>

START<rERM> TIME<TERM>

WT +1Z3.4757 WT +1Z3.4761 WT

+1Z3^4Z5^

fT'WTTT. 4750 WT +1Z3.4743 WT +1Z3.4758

TIME<TERM>

<TERM>

SIGNATURE<rERM>

g<TERM> g<TERM>

g <TERM>

g<TERM>

-<TERM>

10. The ID Number, GLP Report

11. Data Me

:fl| Use and The Method of Storing Da

□ The data memory function can store 200 sets of weighing data. If the power

switch is turned off, AC power is interrupted or 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 weight data in memory.

□ There are four types of operating modes to store the data.

Key Mode

Auto-Print Mode A

Auto-Print Mode B

Intewal Memop/ Mode Weighing data is periodically stored in the balance.

□ The data number can be appended just before the weighing data. (This is

the serial number of the data in memory.)

When you press the ¡PRINT key and the display value

is stable, the balance stores the weighing data. When the display value is stable and meets the

conditions of "Auto-print polarity", "Auto-print band" and standard value (of zero point), the balance stores the weighing data.

When the display value is stable and meets the conditions of "Auto-print polarity", "Auto-print band"

and standard value (of last stable value), the balance stores the weighing data.

This mode can be started or stoped using the PRINT

key .

Symbols

The amount of data in memory

Full memory —

Current data number

11, Data Memory Function

w nnn

~^uuu

> < //

^ cn»

lUL

\ w

uuu

/i \\

Display of

weighing

Display of data

in memory

Page 46

Interval memory mode

Standby indicator

■ Interval memory mode Operation indicator

Functions

Caution

□ When weighing data is being placed in memory, the data can be not

output to the RS-232C interface.

□ The "h ilL " means full memory. More data can be not stored until

deletion of the stored data.

□ Automatic self calibration can not be used while the interval memory

mode is working.

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

Q Query command for weighing data. S Request command for stable weighing data.

SI Query command for weighing data. SIR Request command for continuous weighing data.

Preparation of the Function Tabie

Item

Mode ^ Key mode Auto-Print Mode A Auto-Print Mode B

Interval Memory Mode

Not used data number Use data number

Data output mode

n / n

1 1 L U

n _ /

‘ • L 1

0 . L D

1 1 L L

O _ L r/

II L J

1 n

LI 1 1 O LI

1 !

LI 1 1 O I

Auto-print

polarity n n n n -f

III 1 u /

n n 1 ri ~l

III II II

Note

The data memory function does not

Data memory

function

J n L n 1

LI 1 1 L 1 1 1

1 ri 1 n 1

LI 1 1 L 1 1 1

1 n L n 1

LI 1 1 L 1 1 1

1 n L n 1

LI I 1 L 1 1 1

work with o',91/i' ij.

Output of Data from Memory

Displaying and Transmitting the Data

Step 1 Press and hold the PRINT key until displaying

the key.

Step 2 Press the [PRINT key to enter the mode. Use the following keys.

RE-ZERO key

The key to proceed to the next data.

r r O ' '

r r I Ilf I

Interval time

1 ri n

11 1 L U U

and release

MODE I key

The key to go back to the previous data.

PRINT key The key to transmit the current data to the

RS-232C interface.

RANGE key is pressed and The keys to delete the current data

held then press the [CAl] key

CAL j key The key to exit this mode.

Step 3 Press the ¡CALj key. The balance returns to weighing mode.

Functions page 47 11, Data Memory Function

Transmitting All data at One Time

Step 1 Setup the RS-232C interface using "S if” of the function table.

Step 2 Press andholdthej PRINT [key until displaying |,- [ [ Hi i land release the key

Step 3 Press the RANGE key to display

LI U L

Step 4 Press the ¡PRINT key to enter this mode.

Step 5 Press the RE-ZERO key. Then the balance displays out bo

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

Step 7 The balance displays ,j j F Rr after the finish.

Step 8 Press the jCAL key to return to weighing mode.

The Data Number

When the "Data number output (г/ - no) is set to " /" and the data that is stored in the balance memory is to be output, the "Data number" can be appended just before each data. This format consists of six characters

(excluding the terminator).

N 0 . 0

tI,

-f

0 1 '-p 0 0 0

Deleting All Data at One Time

Step 1 Press andholdthej PRINT ¡key until displaying

Step 2 Press the j RANGE key several times to display [jtnr

Step 3 Press the , PRINT key to enter this mode.

Step 5 Press the , RE-ZERO key. Then the balance displays

Step 6 Press the ¡PRINT key to delete all data.

Step 7 The balance displays r [[ ni L I after the finish

Step 8 Press the |CAL, key to return to weighing mode.

Г Г Г/ I I

I L L и L L

and release the key.

/ U LI

Data Memory Function

Page 48

Functions

The underhook can be used for weighing large items, magnetic material or density measurement. The built-in underhook is behind the plastic cap on the under-side of the

balance.

Caution

□ When not using the underhook, attach the plastic cap to prevent dust

from getting into the balance.

□ The underhook can only be used to support items within the weight

range of the balance. Do not overload it.

□ Operate the underhook gently.

Functions

page 49

12, Underhook

13.Specific gravity (density) measurement

GR series balances are equipped with the specific gravity measuring mode. It calculates the density of a solid according to the weight of the sample in air and weight in liquid.

□ The specific gravity measuring mode is not ready for use upon receiving the

balance. To use the mode, change the function table and activate the specific gravity measuring mode.

□ Two ways to set the density of a liquid are available:

by entering the water temperature and by entering the density directly.

Formula to obtain the density

The density can be obtained by the following formula.

A-B

p : Density of sample A ; Weight of sample in air

B : Weight of sample in liquid

Po : Density of liquid

Changing the function table

(1) Setting the specific gravity measuring mode

The specific gravity measuring mode is available as one of the units. To use the mode, select it in the function table. For how to select the specific gravity measuring mode ,see "Selecting a unit and arranging

the sequence of display " in Chapter 4. (Select I tin it o' I)

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

Select the liquid density method from the function table below. The

function table is available only when the specific gravity measuring

mode is selected. For how to select, see Chapter 9" Function Table ",

Class

o'S far

Specific gravity measuring mode

Item

' -/ «

L O

Liquid density

Setting the density of a liquid

1. Press the

MODE

measuring mode. When the processing indicator (upper left ) flashes with the unit" g" displayed, it indicates that the specific gravity measuring mode is selected.

Param eter

• Lf

Enter the water temperature.

Enter the density directly.

: factory setting

Summaries

key as necessary to select the specific gravity

IS.Specific gravity(density)measurement Page 50

2. In the specific gravity measuring 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 auto

matic response adjustment. This function is not available in the specific gravity measuring mode.

Entering the water temperature ( !_

In the specific gravity measuring 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.

L - 'JCC SLJz

_____________M I II! \

\111 It /

RE-ZERO key Increases the temperature by one degree.

(0-99°C)

MODE I key Decreases the temperature by one degree.

(0-99°C)

PRINT I key saves the change, displays " f n cl " and returns to the

specific gravity measuring mode.

CAL I key Returns to the specific gravity measuring mode without

saving the change.

The relation between the water temperature and density.

Tempera

ture ( C)

0 10 20 30 40 50 60 70 80 90

0.99984

0.99970

0.99820

0.99565

0.99222

0.98804

0.98320

0.97777

0.97180

0.96532

+1 +2

0.99990 0.99994

0.99961

0.99799

0.99534

0.99183 0.99144

0.98758

0.98268

0.97720

0.97117 0.97054

0.96465 0.96397

0.99949

0.99777

0.99503

0.98712

0.98216

0.97662

0.99996

0.99938

0.99754

0.99470

0.99104

0.98665

0.98163

0.97603

0.96991

0.96328

I n

0.99997 0.99996

0.99924

0.99730

0.99437 0.99403

0.99063

0.98618 0.98570

0.98110 0.98055

0.97544 0.97485

0.96927 0.96862

0.96259 0.96190

0.99910

0.99704

0.99021

LI )

0.99994 0.99990

0.99894

0.99678 0.99651

0.99368 0.99333

0.98979 0.98936

0.98521 0.98471

0.98001

0.97425

0.96797 0.96731

0.96120 0.96050

+7 .

0.99877

0.97946

0.97364

+8 +9

0.99985 0.99978

0.99860

0.99623

0.99297 0.99259

0.98893

0.98422 0.98371

0.97890 0.97834

0.97303 0.97242

0.96665 0.96600

0.95979

0.99841

0.99594

0.98849

0.95906

page 51

1 S.Spedfic gravity(densilY)nneasurement

Entering the density directly< , q ,' )

In the specific gravity measuring mode, press and hold the [MODE |key until

the density currently set ( unit: g / cm^, factory setting : 1 .OOOOg / cm^) is

displayed. Use the following keys to change the value.

J zinnnn

0 ;I.£IUUU

RE-ZERO I key RANGE key PRINT key

Changes the numerical value of the digit selected.

Selects the digit to change the value. Saves the change, displays " f n d " and returns to the specific gravity measuring mode.

CALI key

Returns to the specific gravity measuring mode without

saving the change.

Note

□ The range to set the density is 0.0000-1.9999 g / cm^. (Displayed up to four

decimal places)

Measuring the density

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

□ Measuring the weight of the sample in air.

I'JZtiJC

IL J IJ 9

The processing indicator flashes with the unit" g " displayed.

□ Measuring the weight of the sample in liquid.

on 1C r

JJJ III J 9

The processing indicator illuminates with the unit" g " displayed.

□

Displaying the density.

C rinrin

4UUUU

The processing indicator illuminates with no unit displayed.

To switch between the above three, use the [RANGE key

3.Specific graviiy(densiiy)measuremenf page 52

Measuring procedure

Step 1 Confirm thatthe balance is in the mode to measure

the weight of the sample in air. (" g" displayed and

processing indicator flashing)

Step 2 Confirm that the balance indicates zero. If it does

not indicate zero, press the RE-ZERO key to reset

the displayed value to zero.

Step 3

Note

Step 4

Note

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

the value displayed on the balance becomes stable,

press the [RANGE key to confirm the value (the weight of sample in air). The balance enters the mode to measure the weight of sample in liquid ( " g " displayed and processing indicator illuminat ing).

If a negative value or E (error) is displayed, the

RANGE key is disabled.

Place the sample on the lower pan (in liquid). When

the value displayed on the balance becomes stable.

press the [RANGE key to confirm the value (the weight of sample in liquid). The balance enters the mode to display the density (" g " not illuminated).

If E (error) is displayed, the [range! key is disabled.

Step 5

Note : If the liquid temperature or the type of liquid is

To output or save the density, press the [PRINT

key. The unit for outputting the density is " DS ". To measure the density of another sample, press the [RANGE key to return to the mode to measure the weight in air and repeat the procedure de

scribed above.

changed during measurement, reset the value

of the liquid density as necessary. For details,

see " Setting the density of a liquid ".

page 53 IS.Spedfic gravity(densi1y)measurement

14. RS-232C Specifications

Transmission system Transmission form

Data format

Pin connections

EiA RS-232C Asynchronous, bi-directional, half duplex Baud rate : 600, 1200, 2400, 4800, 9600 bps

Data : 7 or 8 bits Parity : Even, Odd (7 bits)

None (8 bits) Stop bit : 1 bit Code : ASCII

LSB

0 1 2

Start bit

Pin No.

2 RXD 3 4 5 CTS 6 DSR

Data bits

Signal name

TXD RTS

Stop bit

Parity bit

Direction

Input Receive data

Output

Transmit data

Input Ready to send Output Clear to send Output Data set ready

7 GND

8 - 25 N.C.

RS-232C

1 -5 V ~ -15 V 0 +5 V ~+15 V

Description Frame ground

Signal ground

Circuits

14, RS-232C Specifications

Page 54

Serial Interface

15. Connection to Equi

Connection to the AD-8121 Pri

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

Function items

r r 1 ri r "1

J 1 1 I-I 1 J L

L C L L Cl _ ~l

J 1 1 LI L 1 ' LI

r r r 1 r n

J 1 I L i” L i >J

r r r i_ r n

J 1 1 LI

O LI iJ L 1 LI J L LI ^ 1

______________

LI LI U L 1 1 L LI f 1 iL 5_f

Q LI U L III ~ 1 Li 5 / j L

Q Cl LI L >11 "Li L/ ? / ) L

1 L n 1 1 r r n 1

1 1 n 1 n 1 ~l “/

1 1 n n n n 1 ~l

1 1 n n / ri 1 ~l

Selection of a print mode. Selection of the polarity for the auto-print mode. Selection of the auto-print band. Selection of pause. "2400bps". "7 bits, Even parity check". "CR, LF". "Not using CTS and RTS".

The case of using "MODE 1" or "MODE 2" of the AD-8121 printer.

I I I ri r

___

M L

A&D standard format

The case of using "MODE 3" of the AD-8121 printer.

r r III n r n

J 1 1 L

____________

1 1 L LI

DP format

Summaries

T'r/.=)7

The case of transmitting data continuously.

The case of transmitting all memory data at one time.

/ I n I I r r I

LI Cl U L I LI J L I

Use of pause

Memo

In the case of dHt H [I, the weighing data can be printed. In the case of r/nt R I, the memory data can be printed.

Refer to "10. ID number and GLP Report" for a print sample.

Serial Interface

page 55

15, Connection to equipment

onnection to a Comput

U The RS-232C is of the DCE type (Data Communications Equipment) and

can use standard DCE cables.

□ When connecting to other equipment, check the manual for that equipment

for proper settings and connections.

□ Keep the RTS line set "HI", when RTS is used.

Program Example

This example sets the display to zero, waits for placing a weight, requires

stable weighing data and displays it. Set the balance functions as follows:

LI LI U L II L LI

Q O LI L i~ U J L U

LI LI LI L U I 1 L ' 1 LI

J 1 1" U L 1 I U

r r III n r ri

-.III" 1

J 1 I~ L I L 1 U

___________

J 1 I‘ L 1 L LI 1

1 L O _ L n

1 1 n 1 1 r r n

1 1 1 n 1 n n

r r 1 n r ~l

-.III LI I ^1 L r r t t_ n n

r r r 1 r n

1 r L U

r r r r 1 1

Data output mode : Key mode Data pause : Not used Data memory function : Not used Baud rate : 2400pbs Data length and parity : 7 bit EVEN Terminator: CR LF

Data format: A&D standard Error code and <AK> : Output, <AK> (ASCII code 06h)

Caution Some computers can not run this program as it is, the program may

require modification. Refer to the manual for the computer.

10 OPEN "COM1:2400,E,1,CS8000" AS #1 20 PRIhiT #1, "R''+CHR$(13)+CHR$(10) 30 LINE INPUT #1, AK$

Declaration of protocol.

Request to zero the display. To receive frie verification code <AK> from the balance for the re-zero command.

40 IF AK$^CHR$(6) IREN *MEM0

50 LINE INPUT #1, AK$

If not <AK>, display the error message.

Reception of verification code <AK> for end

ing the command.

60 IF AK$^CHR$(6) IREN *MEM0 100 FOR 11=1 TO 1000: NEXT II 200 PRINT #1, "S''+CHR$(13)+CHR$C10) 210 INPUT #1, HD$, DT$ 220 PRIRT HD$, DT$

230 CLOSE #1 240 END

300 *MEM0

310 PRINT "AN ERROR HAS OCCURRED" 320 CLOSE #1 330 END

If not <AK>, display the error message.

Wait time for placing weight.

Request for the stable weighing data.

Reception of the header and data. Display the header and data. Close communications

End

Label

Error message Close communications

End

15, Connection to equipment

Page 56

Serial Interface

16. Commands

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

ij»>i .«rf*.TAmiiii«.ifciiMiiI-..:,- ...».¿AaAa i

Command list

--------

■ I ■

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

Commands to request weighing data

c Cancel command for the SIR command.

Q S SI

Query command for weighing data. Request command for stable weighing data. Query command for weighing data.

SIR Request command for continuous weighing data.

Commands to control the balance

CAL Calibration command.

MCL Command to delete all stored data. MD:nnn

Command to delete data of data number nnn.

OFF Display OFF command. ON Display ON command.

P Same as the PRT Same as the

ON:OFF key, Display ON/OFF command. PRINT key.

R Same as the RNG

TST

Same as the Calibration test command. Same as the

RE-ZERO 1 key, RE-ZERO command.

RANGE key. Range command.

MODE key. Unit command.

Commands to request stored data

?MA ?MQnnn ?MX

Output command to transmit all memory data.

Request command to transmit data of data number nnn.

Query command for last data number.

nnn ; numerical value of three figures

Serial Interface

page 57

16, Command

Commands to Request Weighing Data

Cancel command for the SIR command

The balance will stop sending data in stream mode.

Command

Replay

(Output is stopped.)

Query command for weighing data

The balance will respond with the weighing data immediately.

Command

+1010 1. |2l7 8 3

Tl,

gpF

Request command for stable weighing data

The balance display will blink when the data is transmitted.

Command

S “-F

Ti,

0 2

1_1

Query command for weighing data

The balance will respond with the weighing data immediately.

Command Reply

S I Cr

SÌT

, i + lo

0 2

3 l5 ^Ig

Caution

Request command for continuous weighing data

The balance sends the data in stream mode.

Command

s u

s s

1 IR

SI.

Ti, +

0 2 7

2 7

8 3

8 8 3

3 5

___

L_J

•

g Fr

■-F

*-F

When the baud rate is set to 2400bps or less, the display update rate is faster than the output rate and the balance may not transmit the data completely (and transmits it intermittently).

16. Command

Page 58

Serial Interface

ommands to Control the Balano

■■

CAL

M C L

OFF

Calibration command

Balance performs calibration using the internal weight. Command Reply

Command to delete all stored data.

Command Reply

n n n

Command to delete data of data number nnn.

Command

Display OFF command

If the balance is ON, it will turn OFF. If the balance is already off, nothing will happen.

Command

CAL

(Balance is calibrated)

C L

F F

>-F

(<AK> code is replied)

M D ; 0 2 5

(<AK> code is replied)

(Balance turns off)

O N

P R T

Display ON command

If the balance is OFF, it will turn ON.

Command Reply

Same as the ON:OFF key, Display ON/OFF command.

The balance turns on (ortums off). The command works as the ON:OFF|key.

Command Reply

Same as the [PRINT key, Print command

The command works as the

Command

Same as the | RE-ZERO key, RE-ZERO command.

The balance will display zero. The command works as the | RE-ZERO; key.

Command Reply

O N

(Balance turns on)

PFf

(Balance turns on or off alternately)

PRINT key.

P R T

(A data is output)

R %

(Zero is displayed)

R N G

Same as the [RANGE key, Range command. The range can be changed. The command works as the [RANGE key.

Command

Serial Interface

R N G

(Sample weight is stored in the balance)

Cr Lp

page 59

16, Command

т s т

Calibration test command

The balance performs the calibration test using the internal weight.

Command T S

T Cr Lp

Reply (Calibration test is performed)

Same as the ¡MODE key, Unit command. The unit can be changed. The command works as the MODE key.

Command Reply

(Unit is changed)

Commands to Request Memory Data

M A

Output command to transmit all memory data. Command

M A

(Case to output data number)

N 0 , 0 0 1

0 0 2

N 0 0 lol2

N 0 S

+ 0 0 2

0 + olo 2

03^^R

■-F 2 8

2 8 2

2 8

i__j1_1

1_1

-ig

g|^R

^-F

'-F

M Q

M X

Command Reply

Command

? M Q 0 2 5

•-F

(Case not to output data number)

0 0

C 1L

^'RTF

1 4

N 0 .

T +

? N

0 I.

0 I2 5

1 3I5

_____

■-F

16. Comnnand Page 60

Serial Interface

cknowledge Co

This is an explanation of t >- i d of the function list

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

In the Case of h

□ The balance does not output <AK> code or the error code.

In the Case of F r i d /

□ When the balance received a connmand requesting data and can not

process it, the balance transmits an error code ( EC, Exx). When the balance is able to process a command requesting data, 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 <AK> (06h) code.

□ There are some commands that transmit plural <AK> (06h) code from the

balance. See "Command Examples"

CAL command (Calibration command) ON command (ON command) P command (ON:OFF command) R command (RE-ZERO command) TST command (Calibration test)

□ 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 once more.

Control using CTS and

This is an explanation of [ i- S of the function list.

In the Case of /_ t S

□ Regardless of whether the balance can receive a command or not, the

balance keeps the CTS line to Hi. The balance outputs data regardless of condition of the RTS line.

In the Case of F h S I

□ The CTS line is kept HI normally. When the balance can not receive the next

command (ex. processing last command), the balance sets CTS line to LO. The balance confirms the level of the RTS line when data can be output.

If the RTS level is HI, the balance outputs data. If the RTS level is LO, data is not output (It cancels data output).

Serial Interface

page 61

16. Comnnand

Command Examples

This example is set to [ h S / so as to output the <AK> code. There is a delay time required between receiving <AK> and transmitting the next command. When the command is transmitted to the balance,

include a time delay as follows :

Example of a BASIC program

(delay statement)

<AK> is Acknowledge in ASCII code 06h. "LL" is the delay variable.

ON Command (To turn on the display)

1... 120 LINE INPUT #1, AK$

130 FOR LL = 1 TO 1000 : NEXT LL

140 PRINT #1, "Q" + OHR$(13)

1...

R Command (To zero the display)

Computer

R command

Time

Balance

ni; :ii; n

ULIJJLI g

|Ж

ДК

ппппп IJULILIU 9

16, Connmand Page 62

Weighing mode

Confirmation of command receipt

Processing command

Command completion Zero display

Serial Interface

CAL Command (To calibrate the balance)

Serial Interface

page 63

16, Command

Error Code and Command Cancellation

Example : When the R command is received, but the balance can not

process it and an error code is output. This example is set to fT d /.

Computer

R command

CAL command

c aIl

Time

Balance

I ir n 'in

ICUJ lU

ak|Cr

E C

L 1 1 1.11 1

r . 1

E 1

1 c

Weighing mode

Confirmation of command receipt

Processing command

Assume that the balance can not stabilize due to vibration.

The balance sends an error code and displays it.

If a CAL command is received, the R command is canceled.

AK Cr Lp

I'ICC in

II. UJ ll.l

Weighing mode

16, Command

Page 64

Serial Interface

-T-7Sr

17. Maintenance

□

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

□ Please use the original shipping box for transportation.

□ Do not use organic solvents to clean the balance. Use a warm lint free cloth

that is damp, along with a detergent for cleaning.

□ The "Floor Plate of the Weighing Chamber" can be removed and cleaned.

□ Consider section "2. Caution" when operating the balance.

Error Codes

Display Error code Description of the error

EC, EOO

Communications error

A protocol error occurred in communications.

Confirm the format, baud rate and parity.

EC, E01 Undefined command error

An undefined command was received.

Confirm command.

EC, E02

Not ready

A received command can not be processed.

Adjust the delay time to transmit the command.

ex. The balance received a Q command, but

not in the weighing mode,

ex. The balance received a Q command while

processing a RE-ZERO command.

EC, EOS

Time over error

Ift-Up 1 of the function list is set, the balance did not receive the next character of a command

within the time limit of one second.

Confirm communication.

Maintenance

EC, E04

Excess characters error

The balance received excessive characters in a command.

Confirm command.

page 65

17. Care and error codes

Display

Error code

Description of the error

____ n

L I I ill U

•* - . f

L I I ill I

EC, E06

EC, E07

EC, E11

Format error

A command includes incorrect data.

Confirm command.

ex. Data is numerically incorrect.

Range error for a parameter

The received data exceeds the range that the

balance can accept.

Confirm parameter range of command.

Internal condition information

There is no problem when displaying it a few seconds and returning to weighing mode.

Turn the balance off then on again, if the

information is continuously displayed.

Stability error

The balance can not stabilize due to an environ-

mental problem. Press the | CAL, key to return to the weighing mode.

Prevent vibration, drafts, temperature changes, static electricity and magnetic fields.

Read "Precautions for Installing the Balance" on page 5 and "Caution during Use" on page 6 and be well informed on how to use the bal ance.

C - i~ L > » ÜI Ü

error I

r 111 r

LIIL L

f n 1

■ L riL c

EC, E16

EC, E17

EC, E20

EC, E21

Internal weight error

This is a calibration error.

Confirm that there Is nothing on the pan and retry the calibration or calibration test.

Internal weight error

This is a calibration error. Retry the calibration or calibration test.

Calibration error

The calibration weight is too heavy. Press the

CALI key to return to the weighing mode.

Calibration error

The calibration weight is too light. Press the

CAL I key to return to the weighing mode.

Over load

This is a warning that a weight beyond the

balance capacity has been placed on the pan.

Remove the weight from the pan.

17. Care and error codes

Page 66

Maintenance

Display Error code

Description of the error

Weighing pan Error

This is a warning that the weight value is too light.

Confirm that the weighing pan and the pan support are properly installed.

I .

L LI

r i j

L n nu

Unit weight, 100% weight error

The unit weight of the sample is very light in the counting mode, or the 100% sample is too light

in percent mode. The balance can not calculate

Increase the unit weight or 100% weight.

it.

ARA Zero error

The ARA (Automatic Response Adjustment) can not be performed, because there is some thing on the pan.

Remove all matter from the pan. Press the\CAL key to return to the weighing mode.

ARA Unstable error

The ARA (Automatic Response Adjustment) can not be performed because of unstable weighing value.

Correct the environment for the balance. Press the

CAL

key to return to the weighing mode.

r III

I UL

C r I

'1C .

1. J

c n .

JIJ

inn.

IIJIJ

Other errors

if you can not cancel the error yourself, request service from the store where you purchased the balance or option, or the A&D service group.

lies

pl^

pcs

Full memory

The memory data has reached 200 items.

When data is deleted, new data can be stored.

Memory data error

The memory data is lost.

Clear all memory data.

Unit weight information

This is advice regarding the sample number that is needed to set the unit weight. When the

unit weight is computed and the sample num ber is too few, the required number is displayed

for counting accuracy.

Count and place the samples on the pan. Press the [print] key to store the correct value.

Maintenance

page 67

17, Care and error codes

other Symbol

When this indicator blinks automatic self calibra

tion is required. The indicator blinks when the

balance detects a change in ambient temperature.

If the balance is not used for several minutes with this indicator blinking, the balance Performs auto matic self calibration. The environment may affect the time of blinking.

17, Care and error codes

Page 68

Maintenance

pecificatio

ifciiB I !>>; iiAiM ii liiiiiWiwianiWiitfi»Mii inmndliriii' I t iirm ~itiiiji*fB««riSATtniiii i!iw'irtii~i

GR-120

Weighing capacity

Min. weighing value (1 digit)

Repeatability (Standard deviation)

Linearity

Stabilization time (approx.)

Sensitivity drift (10°C ~ 30°C)

Ambient temperature

Min. unit weight

Min. 100% weight

Interface

Calibration weight Built-in weight

External calibration weight

Weighing pan

Weiging room

120 g 210 g 310 g

0.1 mg 0.1 mg

0.1 mg 0.1 mg 0.2 mg 0.1 mg/0.02 mg

1D.2 mg

3.5 sec

12 ppm/°C (Automatic Self Calibration is not used)

5°C ~ 40°C (41 °F ~ 104°F),

RH < 85% (Do not allow condensation)

RS-232C

100 g 200 g 200 g

50 g

085 mm

178(W)x 160(D) X 233(H) mm

GR-200

£).2 mg 10.3 mg 10.2 mg/10.03 mg

3.5 sec 3.5 sec

0.1 mg

100 g 300 g 100 g

GR-300 GR-202

210 g/42 g

0.1 mg 0,1 mg/0.01 mg

3.5 sec/8 sec

0.01 g

200 g

External dimension 249(W) X 330(D) X 327(H) mm

Power consumption

AC adapter, Power supply Please confirm that the AC adapter is correct for your receptacle type anc

Net weight Approx. 6.0 kg

Approx. 11VA (supplied to AC adapter)

voltage [factory preset].

d)85

327

......

Maintenance

\ i

330

page 69

18. Specifications

AD-8121 Printer

□ Compactthermal dot-matrix printer. □ Statistical function, calender

and clock function, interval print function, graphic print function.

□ 5x7 dots, 16 characters per line.

□ Print peper (AX-PP143,

45mm(W) x 50m (L), 065mm)

□ AC adapter or alkaline battery.

AD-1653 Density Determination Kit

Weigh in the air

Underwater weight - Weigh in the air

Water density

Example

Water density

10.0000 g

10.0000 g - 9.5334 g

0.99970 g/cm^ 0°C 0.99984 g/cm3

10°C 0.99970 g/cm3 20°C 0.99820 g/cm^ 30°C 0.99565 g/cm3

External key Plug

This plug produces the same operations as pressing the RE-ZERO and

PRINT keys. It enables remote control of the balance using an external

key. This operation must connect the GND line to the PRINT or RE-ZERO

line for at least 100 mili-seconds.

-= Density

21.4g/cm3

18, Specifications

Page 70

Maintenance

...........

-i.i

Symbols

.....

......

9, 19,

pcs

iTASnfMT5nim?Wl

cT-

so-

inn

iUU

: i/o;

^od.

A&D standard format .............................36

n _ n } I i } OQ

II LI I I I I ......................................................................................................

AC adapter .................................5, 7, 8, 9

ACAi AD-8121

n n

n I

■ LI

ri o

n I

111

n I

I I L

Auto-Print Mode A ..........................35, 46

Auto-Print Mode B ..........................35, 46

Automatic Self Calibration

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

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

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

..............................................32

32, 35, 47 32, 35, 47

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

55, 70

18, 19

n r r

onJ' nr

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

Basic operation

Baud rate ..............................................54

1 n r

LI 1 J ............................................................................

Breeze break ring

hl-Pr

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

. 9

Bubble spirit level

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

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

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

..................32

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

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

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

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

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

14 18

. 9

r ri I n

L <1 L LI

I ri I

. 9

L > I L

. 9 46

10 10 10 10

r n I

L n L

i n I

L I I L

~ O' - L

L ' I L U U L

Calibration Calibration key Calibration Report Calibration test

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

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

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

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

Calibration Test Report Calibration weight

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

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

r I I n

L I I LI III _ I

L I I I I LI

r I r I I

L L L ‘ I '

L L > LI Q

Command

L LI n U

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

Counting mode

L J III

Ct ......

/ t I

L I

___

CTS line

d-nu

D.P. format

I n / n

LI >1 L > I

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

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

........................................32, 47

3, 13

5, 8

10,

18,

16, 32,

32,

32,37,47

22 66 66 20 22 18 10 40

18 40 69 24 21 24 67 67 48 29 48

14 32 32

11 61 61

Maintenance

page 71

19, Index

Data format Data number Density Display Display Character Set

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

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

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

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

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

36 46

Door control lever ....................................8

Door joint .................................................8

clout .......................................................32

drafts ...................................................... 16

Dump print

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

Dust plate ................................................8

dwt ......................................................... 11

E ............................................................ 66

-E ...........................................................67

EC, EOO EC, E01 65 EC, E02 65 EC, E03 65 EC, E04 65 EC, E06 66 EC, E07 66

EC, Ell .................................................. 66

EC, El 6 66

EC, E17 66

EC Regulation .........................................4

EMC ........................................................4

End block

ErEcI

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

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

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

32, 61

Err ...................................................... 67

_______________

l_ I I l_l I l_l ............................................................................................................................

________________

n RC

I fif:;

Error o .......................................... 66

_______________

C I I LM I ....................................................................................................................................

Error code External key

External key jack .....................................8

External weight

-I KR

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

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

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

CLP

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

GN ......................................................... 11

Grain ...................................................... 11

gram mode

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

Grounding terminal ...................................8

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

ID number

inf-o mh

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

Interval Memory Mode

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

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

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

Key ............................................8, 10, 31

Key mode

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

Key operation ....................................... 10

KF format

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

Leveling foot .......................................8, 9

Linearity

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

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

Magnetic material ....................................6

Maintenance

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

mes ...................................................... 11

Messghal

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

Metric Carat ........................................... 11

MID

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

Mode key ............................................... 10

mom

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

momme

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

MT format ...............................................37

3, 10, 40

32 40

32, 47

36, 46

35, 46

FAST .................................................... 16

FCC .........................................................4

Floor plate

f ili

Function

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

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

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

46, 67

19. Index

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

ON/OFFkey

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

Ounce .................................................... 11

Page 72

Maintenance

U U L O U C U O

..........

ozt

.........

P-on

Parity .....................................................54

Pennyweight ........................................ 11

Percent mode ....................................... 15

Pnt

Power consumption

Print key ............................................... 10

Printer ..............................................55, 70

Prt

PS ....................................................28, 29

n I I r i

I U J L

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

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

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

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

32, 35, 36, 47

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

32, 34

48 48

11 11

Stream Mode .........................................35

Symbol

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

.............................................. 11

I I ri

LI I

............................................. 32

Tael ...................................................... 11

Target weight

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

Temperature ..........................................69

temperature .............................................5

Temperature difference Title block

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

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

TL ......................................................... 11

Tola ...................................................... 11

tre ................................................ 32, 34

Troy Ounce .......................................... 11

Tweezers .................................................6

L U Ü I

L J I L

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

32, 36, 37

QT 36

R Range key

Re-zero key

r r n I I

r C L > I L L

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

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

Relative Humidity ................................... 5

Repeatability

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

Response adjustment ............................ 16

RS-232C

RTS line

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

3, 8, 54

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

S._, 37

SD .........................................................37

Serial interface

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

Si ...........................................................37

5 if

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

SLOW

SPd

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

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

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

32, 36, 37

St-b .............................................32, 34

Static electricity Step card

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

Stop bit ..................................................54

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

10 10

56, 61

3, 8

32, 34

Underhook

Unit,//n, 6 ......................

US ................................

V vibration

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

Weighing

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

Weighing capacity Weighing chamber Weighing pan weight WT

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

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

6 8

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

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

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

....

9, 10, 11, 32

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

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

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

13 69

8 18 36

Maintenance

page 73

19, Index

A&D GR-300 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1. Introduction

Chapters of this book

Features

2. Gaution

3. Unpacking your balance

4. Weighing

[üjQ

Operation of unit selection

Selecting a unit and arranging the sequence of display

5. Wéighing

Selecting the counting mode

Counting Items

Counting mode using the ACAI function

Selecting the unit of percent nnode

Storing 100% weight

Reading percentage

6. Response Adjustfinent

Note

Operation

Operation

7. Calibration

Note

Advice

Control of Automatic Self Calibration

8. Function Switch and initiaiization

9. Function Table

11. Data Me

13.Specific gravity (density) measurement

Note

Entering the water temperature ( !_

14. RS-232C Specifications

15. Connection to Equi

17. Maintenance

Error Codes

pecificatio