Hitachi AJ-1200CE Operation Manual

200009M11

High-Precision Tuning Fork

Electronic Balance

AJ-CE/AJH-CE Series

Operation Manual

A3 \Zoo os

IMPORTANT

• To ensure safe and proper use of the balance, please read
this manual carefully.

• After reading this manual, store it in a safe place near the
balance, so you can review it as needed.

V ;

VlBRA

SHINKO DENSHI CO., LTD.

PREFACE

Thank you for purchasing an AJ Series electronic balance. This is a precision instrument equipped
with exacting mechanisms in a compact body. The AJ series provides enhanced functions, including
a counting mode for stock control of parts, a percentage mode for comparative measurements given in
percentages, and a limit function for measuring constant quantities by consecutive weighings.
Despite its many functions, the balance is easy to operate and features user-friendly keys.
Furthermore, the large liquid-crystal display provides excellent visibility, and the instrument's high
speed and stability-intrinsic to a tuning fork design-help boost operational efficiency.
Moreover, balances with a built-in calibration weight (AJH-CE Series) can be calibrated by simply

turning the calibration knob.

Before using the balance, please check that the following items have been included in the
package.
Should you find any missing parts, please contact your local dealer or our marketing division at once.

(1) Main unit of balance

(2) Measurement pan

(one round or square pan)

AJH-E

(3) Pan base (4) Windshield

(one small for the round-pan (one for round-pan
balance; one large for the balance only)
square-pan balance)

(5) AC adapter (one)

(6) DIN5P plug set (7) Operation manual (one)

For More Precise Measurements

To

be

able

to

conduct more precise measurements,

it is

necessary

to

minimize

the

factors that contribute

to

measurement errors. There

are a

great variety

of

such error-inducting factors, which

can be

linked

to

machine error

and

performance

of the

balance

itself, as

well

as the

properties

and

condition

of

samples being

measured,

and the

measuring environment (e.g., vibration, temperature/humidity). These factors

can

readily

affect

the

results

of

measurement

on a

balance that

has

resolution comparable

to

that

of the AJ

Series.

This material includes some precautionary notes that

the

user should bear

in

mind

to

eliminate error factors

and ensure accurate measurement results.

Measuring Room

Balance

Maintenance

Calibration

Temperature

Vibration/Shaking

Gravity

Humidity

Drafts

Electromagnetic Waves

Static Electricity

Temperature

Absorption/ Vibration/
Evaporation Shaking
of Moisture

Magnetism Magnetisi

Measurement Errors

Static Electricity

Measuring Bench

Factor Analysis Chart

for

Measurement Errors

1.

Precautions

on the

Measuring Room

1.1

Temperature/

Humidity

1.2

Vibration/

Shaking

1.3

Drafts

1.4

Gravity

1.5

Electromagnetic

Waves

Try

to

maintain constant room temperature

as

much

as

possible

to

prevent

dew

condensation

and

unstable indications

due to

fluctuations

in

temperature.

Low relative humidity tends

to

induce static electricity. (Relative humidity

of

about

60% is

considered ideal.)

The measuring room should preferably

be

located

on the

ground floor

or in the

basement. Higher floors

are

more susceptible

to

heavy vibration

and

shaking,

which make such locations less suitable

for

measurement. A room facing

a

railway

or

road with heavy traffic should also

be

avoided

as

much

as

practicable.

Avoid choosing a location subject

to a

direct draft

of

airflow from

an air-

conditioning unit

or

exposed

to

direct sunlight, which

may

cause abrupt

fluctuations

in

temperature.

Also avoid a room subject

to a

heavy flow

of

people, since fluctuations

in

drafts

and temperature

are

likely

to

occur

in

such a location.

The gravity acting

on a

sample varies depending

on the

latitude

or

height

of the

location where measurement

is

being conducted.

For

this reason,

the

same

sample

may

show different weight indications from

one

place

to

another.

Therefore, make

it a

rule

to

calibrate

the

balance every time

it is

relocated.

When

the

balance

is

located near

an

object that generates intense

electromagnetic waves,

it may be

hindered from showing accurate weight

due to

the effects

of

such waves. Therefore, avoid placing

the

balance

in

such

a

location.

Precautions

on the

Measuring Bench

2.1 Vibration/
Shaking

2.2 Magnetism/

Static Electricity

If

the

balance

is

subjected

to

vibration during measurement,

its

indications will
become unstable, thus preventing accurate measurement from being conducted.
To avoid this situation, select a solid measuring bench that

is

less susceptible

to

vibration.

(A

bench

in a

vibration-proof structure

or one

made

of

concrete

or

stonework will

be

suitable.) Moreover,

do not

conduct measurement with a soft

cloth

or

paper placed under

the

balance, since

the

balance

may be

rocked

out of

its precise level positioning.
Place

the

measuring bench

in a

location free from vibration

as

much

as

possible.

It

is a

good idea

to

install

the

measuring bench

in a

corner

of the

measuring room,

where less vibration

is

likely

to

occur than

in the

center

of the

room.

Avoid operating

the

balance

on a

bench that

is

susceptible

to the

effects

of

magnetism

or

static electricity.

3. Precautions on the Samples

3.1 Static Electricity

3.2 Magnetism

3.3 Absorption/
Evaporation of

Moisture

3.4 Sample

Temperature

Generally speaking, objects made of synthetic resin and glass have high electric
insulating properties and, therefore, are apt to be electrically charged.
Measuring a charged sample as is may cause unstable indications, with resultant
poor reproducibility of the results. With this in mind, be sure to discharge
charged samples before measurement.
A sample affected by magnetism indicates different weight values depending on
where it is located on the measuring pan, along with resultant poor
reproducibility of the results.
When a magnetized sample must be measured, first demagnetize it or place an
appropriate pedestal on the measuring pan to adequately separate the
mechanism part of the balance from the magnetized sample for avoiding the
effects of magnetism.
Measuring a sample with moisture absorbed or evaporated (volatized)
continuously increases or decreases the values indicated. In such case, measure
the sample in a container with a small opening and sealed airtight with a cap.

A difference in temperature between a sample and the interior of a windshield
may cause convection to occur inside the windshield, resulting in erroneous
measurement. Therefore, measure a very hot or cold sample only after allowing
time for its temperature to acclimatize to room temperature. Moreover, to
prevent convection inside the windshield, allow time for the interior of the
windshield to acclimatize to room temperature.

The body heat of a person conducting measurement can also affect measurement

results. Avoid holding the sample with bare hands, and use long tweezers or a
similar tool instead. Also refrain from putting your hands inside the windshield
while measurement is in progress.

4.

Precautions on the Main Unit of the Balance

4.1

Precautions on
Use

4.2 Calibration

4.3 Maintenance

• The balance is supplied with a transparent dust cover. The dust cover may be
statically charged immediately after removal from the packing box or under low
humidity conditions. Unstable indications by the balance may be due to
statically charged dust cover. In such case, wipe the dust cover with a damp
cloth or use a commercial antistatic agent. Otherwise, simply operate the
balance with the dust cover removed.

• To achieve more accurate weighing, wait at least 30 minutes after switching on
the balance in order to ensure that electricity is fully charged, then use the
balance only after loading it several times with an object of weight equal to the
weighing capacity.

• Periodically calibrate the balance to ensure accurate measurement at all times.

• For more precise calibration, use an external calibration weight that
approximates the weighing capacity. Moreover, calibrate the balance only after
allowing time for proper acclimation to ambient temperature following power-up.

• Wait at least 30 minutes after switching on the balance in order to ensure that
electricity is fully charged, then perform calibration only after loading the
balance several times with an object of weight equal to the weighing capacity.

Calibration is also required in the following cases:

• When operating the balance for the first time,

• When not using the balance for a long time,

• When relocating the balance, or

• When there is wide fluctuation in temperature, humidity or atmospheric
pressure.

• When the measuring pan or pan base is contaminated with powder or liquid,
erroneous weight values may result or indications may remain unstable.
Therefore, be sure to frequently clean the balance. When cleaning the balance,
be very careful not to allow dirt or liquid to penetrate inside (the mechanism
part).

• The windshield supplied with the round-pan type of balance is provided with
antistatic treatment. Wiping the windshield with a damp cloth may weaken the
antistatic effect. Therefore, use a dry cloth to clean the windshield. The
antistatic effect may be weakened over time. If this occurs, use a commercial
antistatic agent.

200006M01

CONTENTS

1.

Precautions on the Use 2

2.

Names of Component Parts ....5

2.1 Main Unit 5

2.2 LCD Indicators and Operating
Keys 6

3. Basic Operations .....8

3.1 Installation 8

3.2 Operation Check 9

3.3 Operation for Tare Subtraction 10

4. Functions 12

4.1 Setup and Checking of Functions . 12

4.2 Description of Functions 13

4.2 Description of Functions (cont.) 14

4.3 Interface Section 14

5.1 Switching Units of Measurement... 15

5.2 Setup of Units of Measurement
(Only when the lock switch is off) 15

6. Counting Pieces 17

6.1 Sampling 17

6.2 Increasing the Counting Accuracy
(Memory Update Method) 19

7. Measuring Percentage 20

8. Limit Function 22

8.1 Limit Function Setup 22

8.1 Limit Function Setup (cont.) 23

8.2 Setup of Limit Values by Actual
Quantity Loads 24

8.3 Setting up Limit Values by
Inputting Values 25

8.3 Setting up Limit Values by
Inputting Values (cont.) 26

9.

Calibrating the Balance 27

9.1 Calibration of AJ-CE Series 27

9.2 Calibration of AJH-CE Series ........29

9.3 GLP-compliant print..... 31

10.

Input/output functions 32

10.1 Terminal Numbers and Functions .32

10.2 Connection between Balances and
Personal Computers... 33

10.3 Interface Specifications 34

10.4 Output Data 35

10.5 Input Commands , 37

11.

Operating the Balance with the

Battery 39

11.1 Specifications 39

11.2 Charging Method , 39

11.3 User Precautions , 39

12.

Troubleshooting 40

13.

Specifications 41

13.1 Basic Specifications 41

13.2 Common Specifications 41

13.3 Capacities and Minimum Indications
for Different Indication Units 42

14.

Conversion Table of Units 43

1.

Precautions on the Use

This Section "Precautions Relating to Use" sets forth precautionary notes that the user should
observe in order to prevent physical injury to the user and/or damage to property.

The nature of problems that may result in the event of improper operation, and consequential effects
on the quality and performance of the balance, are indicated under the two categories of "Caution"
and "Recommended," and explained using symbols.

CAUTION

RECOMMENDED

This symbol indicates a risk of injury or property damage if the

balance is used improperly. Be sure to observe these notes to
ensure safe use of the balance as the improper use may cause
serious results.

This term indicates steps that the user should take to ensure the
quality and reliability of the balance.

Meanings of Symbols Each symbol is accompanied by an instruction.

o

Mandatory

Symbol:

s

Prohibitive

Symbol:

Indicates a "mandatory" action that should be executed

without

fail.

Indicates a "prohibited" action that must not be

executed.

O

Check Level

0

Do not Use

CAUTION

Do Not

Disassemble

• Do not disassemble or modify the unit.

• Could cause malfunction or heat generation

• Contact our Marketing Division or Technical
Service Division.

0

Do Not

Deviate from

Ratings

• Only AC power (rated value) should be used.

• Only use the dedicated AC adapter.

• Use of other types of power or adapters may
result in heat generation or malfunction of the
balance.

0

Do Not Move

• Do not move the balance when a sample is
loaded.

• The loaded sample may fall off the

measurement pan and cause an injury.

0

Do Not Use

• Do not place the balance on an unstable base
or use the balance in a location where it may
be subjected to shock.

• The loaded sample may fall off the

measurement pan.

• Accurate measurement may be rendered
impossible.

Do Not Drop

• Do not lay the AC adapter cable on the surface
of the passage.

• Somebody may trip on the cable, causing the

balance to fall off, thereby causing injury and/or

damage to the balance.

Do not Handle

with Wet Hands

• Do not touch the AC adapter or balance with
wet hands.

• Danger of electric shock

Keep Dry

• Do not use the balance in a location were it
may be subjected to excess moisture.

• Electric shock or short-circuiting could occur.

• The balance may be corroded, with resultant

malfunction.

Do Not Leave

Afloat

• Do not use the balance with its adjusters
lifted.

• The balance will become unstable,
preventing accurate measurement.

,-V, .• \!

Avoid Dust

• Do not use the balance in a location where it
may be subjected to excess dust.

• Risk of explosion or fire

• Short-circuit or lack of continuity may occur,

leading to a malfunction of the balance.

RECOMMENDED

o

Calibrate

Balance

• Calibrate the balance after installation or
relocation.

• Measurement values may contain errors,

preventing accurate measurement from being

conducted.

Do Not Apply

Force

• Avoid applying excess force or impact to the
balance.

• Place the sample to be measured on the

balance carefully to prevent breakage or

malfunction.

0

Do Not Use

• Do not use the balance in a location were it
may be subjected to abrupt changes in
ambient temperature or humidity.

• Accurate measurement may not be

obtained.

• Optimum operations occur when ambient

temperatures range from 10°C to 30°C, and
less than 80% relative humidity.

Do Not

Overload

• Do not use the balance when [Q -Err]
(Overloaded) is displayed.

• Take down the loaded sample immediately to

prevent breakage or malfunction.

0

Do Not Use

• Do not use the balance in a location where it is
subject to direct sunlight.

• The indications would be illegible.

• An internal temperature increase in the

balance may lead to inaccurate
measurement.

Unplug

Adapter

• If the balance is to be unused for an extended
period of time, unplug the adapter.

• This conserves power and prevents

deterioration.

0

Do Not Use

• Do not use volatile solvents for cleaning.

• The body may be distorted.

• To clean the unit of stains, use a piece of dry
cloth or cloth soaked in a small quantity of
neutral detergent.

0

Do Not Use

• Do not use the balance in a location where it
may be subject to air from an air-conditioning
unit.

• Extreme changes in the ambient temperature

may result in inaccurate measurements.

0

Do Not Use

• Do not use the balance on a soft floor.

• When loaded with a sample, the balance may

tip or move, preventing accurate
measurements from being conducted.

O

Check Level

• Do not use the balance when it is tilted.

• An inclined balance is likely to produce errors,
preventing accurate measurements from
being conducted. Place the balance on a
level surface.

2.

Names of Component Parts

2.1 Main Unit

Round-pan types (AJ-220CE, AJ-420CE, AJ-620CE, AJH-220CE, AJH-420CE, AJH-620CE)
Square-pan types (AJ-820CE, AJ-1200CE)

Windshield
Supplied only with

the round-pan types
The top lid is
detachable.

Level
For checking

the level of the
balance
Turn the adjusters
until the bubble rests
in the center of the red

circle.

Liquid-crystal
display (LCD)
See page 6.

Front View (round-pan type)

Operation keys
See page 7.

Measurement

pan

Adjusters
Round-pan type: Total of two, one on either

side of the unit's front

Square-pan type: Total of four, one on either

side at front and rear

RS232C

connector

AC adapter

connector

Calibration knob
(AJH-220CE, AJH-420CE,

AJH-620CE)

Used for span adjustment of the
balance.

2.2

LCD

Indicators

and

Operating Keys

2.2.1 Symbols Displayed

HI

OK

LO

-K)<-

0111

ill

11

ill I • ill

11

IF

GAL

p

cs

#

mom

1

M

I.U.U.U.U.UU

g»»

Display

g

->0<-

->T<-

O

*

Pcs

%

^

mom

M

CAL

o

OllilliiillnillllllF

tfcbt

•

Description

Grams
Zero point

Tare being subtracted (effective when

the

lock switch

is off)

Indication

of

stable balance

(If the

light

is off, the

balance

is

unstable.)

Balance powered

up

(Lights

up

when

the

power

is

turned

off) or

data transmitted

Counting mode
Percentage mode

Indication

of

judgement result (HI/OK/LO) when

the

limit function

is

active.

Momme
Display

of set

values from memory

(If a

value

is

flashing,

it is

being saved.)

Stays

on and

flashes while span adjustment

is in

progress.

Auxiliary scale interval (Lights

up

only when

the

auxiliary scale interval

is

displayed.)
Bar graph

"[ Ct: ](ctj carat

[

O2 ] (oz)

ounce

[

ib ] (lib)

pound

[

O2 "t ] (ozt)

troy ounce

[

GII'

v~t ] (dwt)

penny weight
[ •(Upper right) ] grain
[

-fc-J ] (tl)

tael (Hong Kong)

[

"t» •

Upper right

] (tl •

Upper right) tael (Singapore.Malaysia)

[

"ti •

Lower right

] (tl •

Lower right) tael (Taiwan)

[ "to ] (to) tola

Lights

up

when

the

balance

is

battery-operated.

The

indication changes

to

[

C3 ]

wnen

tne

battery capacity decreases

and

charging

is

required.

(See

"11.

Operating

the

Balance

on the

Battery"

on

page

39.)

2.2.2 Names and Functions of Operating Keys

Operating Key Function

On/off key

Key to turn on/off the unit power

Memory key

[Brief press]
[Brief press]

initiates print or output.
saves the settings of the number of pieces or

percentages (%), or the limit value when
using the limit function.

Set key

[Brief press]
[Continuous press]

starts setting the number of pieces or
percentages (%).

starts setting the limit value when using the
limit function.

Function key

[Brief press]

[Brief press]
[Brief press]

[Continuous press]
[Longer continuous press]

toggle-switches the units to be displayed in

succession (g, Pcs, %, etc.).

moves the flashing digit in the setup of a limit
value when using the value input method,
selects an item when setting the function,
invokes various functions,
invokes span adjustment.

Zero/Tare key

[Brief press]
[Brief press]
[Brief press]

resets the indication to zero when using
zero-point setup or tare subtraction,
selects a value with the value input method
when using the limit function,
selects a function when operating the
balance in the function mode.

3. Basic Operations

3.1 Installation

1 Positioning the measurement pan

First, mount the pan base on the

main unit of the balance and place
the measurement pan on top of it.
Be sure to mount the pan base in the
correct direction, as illustrated
below.

2 Securing the exact level of the balance

Position of air bubble

in the level

Turn the adjusters until the bubble
rests in the center of the red circle on
the level.

Round-pan type: total of two

adjusters, one on
either side at front

Square-pan type: total of four

adjusters, one on
either side at front
and rear

<Caution>
Use caution when operating the

adjusters on the square-pan type to
prevent them from lifting up.

3 Connecting the AC adapter

Connect the AC adapter to the
balance, as illustrated at left.

S&Take 5 minutes before operation.

<Caution>
If the balance has the battery

installed,

refer to "11. Operating the

Balance with the Battery," on page

39.

3.2 Operation Check

1 Turning on the power

When the balance has the AC
adapter connected, it displays [ * ].

Pressing the | On/Off | key

The display section lights up, and
the balance is ready for operation.

2 Checking the display

-Kn--m-

OIIIIIIIIIIIIIIIIIIIF 4HI CAL p

cs

#

Check to see if the display has any
missing indications or unlit parts.
A few seconds after startup, the
indication is reset to zero.

3 Switching the measurement mode

0.0 0

Qg

0.00

C3

Press the | Function"] key.
Each time the key is pressed, the
unit of measurement changes, as
indicated.

balance is shipped from the
factory with the following switching
sequence: [g] -» [ct] ->• [Pcs] -»•[%]

-> M -> - - •

a

Pcs

4 Verifying changes in the read-out indicator

Press the measurement pan lightly
and make sure that the read-out
indicator changes.

Also,

ensure that the read-out

indicator is reset to zero when you

release your hand.

3.3 Operation for Tare Subtraction

1 Place the tare (container) on the balance.

0 - | - | I F

As you place the tare, the balance
indicates its weight.

2 Reset read-out indication to zero.

-0-

-T- 0 • | • | | F

n n n

!F>i

„

Press the | Zero/Tare | key.

The tare is subtracted and the

balance indicates zero.

3 Load the sample to be weighed.

O

-T-

0 - I - I I f

S3.

a

The balance will now indicate only
the weight of the sample loaded in
the tare.

•fr Weighing only the weight of an added sample
4 Resetting the indication to zero

-T<-

0 • | • I I F

Press the | Zero/Tare | key.
The total weight of the sample

loaded on the measurement pan is
indicated as zero.

5 Adding samples to be measured

O

-T-

o• I • | • I r

The balance indicates only the
weight of an added sample.

When the weight (of a sample)
currently loaded on the
measurement pan is reset to zero

with the Zero/Tare | key, as

mentioned above, only the weight of

the sample will be measured.

10

Key Points of the Procedure it

The following applies equally to all the measurement modes for weight measurement, counting, and

percentages.

1.

After the balance is switched off, there is still enough current to display [ * ]. This indicates that

the AC adapter is connected to an electrical outlet, but that the balance is turned off.
When the balance is switched on again, [ * ] will disappear.

SKIf the balance is running on batteries and the unit is switched off, the display does not display [ * ].

2.

The bar graph shows the current load status with respect to the

capacity of the balance. The nearer the [F] mark draws, the smaller
the measurable weight becomes.

•XEven when the display currently indicates zero with the tare
subtracted,

the weight corresponding to the subtracted tare is

indicated on the bar.

3. When the balance remains stable, the stability indicator [O] remains

Zero-

point

Capacity

point

OlIlllllllllllllllllF

Half (1/2) capacity

on.

If the balance becomes unstable, the stability indicator [O] will disappear.
When a displayed value flickers or the stability mark flashes on and off, it is likely that the balance
is being affected by wind or other vibrations. Use the windshield or vibration dampers to protect
against such adverse effects.

- I - I F

0 - I - | - I F

Unstable Stable

4.

When the read-out indicator is reset to zero or the tare is subtracted, the balance indicates zero

this way: [-» 0 <-]. If the tare is subtracted, the indicator reads as follows: [-• T <-].( [-> T <-] is
effective only when the lock switch is off.)

0 I I I F

If the indication
deviates from the
true zero point by 1/4
of a graduation or
less,

[-> 0 <-]

disappears.

•i i

If the tare is
subtracted,

the

balance indicates

zero,

and [-> T <-]

lights up.

5. When the tare is subtracted, the measurable range is reduced.
Measurable Range = Capacity - Tare Weight

6. If [o - E r r ] appears when a sample is loaded, the measurable range has been exceeded.

7. In counting mode or percentage mode, if no sample is stored in memory the indicator will not
change, even when the measurement pan is pressed.

8. The measurement mode that is activated when the balance is switched on will be the one that
was active when last switched off. For example, if the balance was switched off in counting
mode,

this counting mode will be reactivated the next time the balance is switched on.

9. To print data on the balance, set "Output Control (1 l.o.c.)" to [£'], [H], [5], or [1], so that only
stable data will be printed (see "4.3 Interface Section" on page 14).

11

4. Functions

4.1 Setup and Checking of Functions

1 Invoking the function

aaaog

I- u n c

u

Continuous pressing

Key released

t. b.u.

Press and hold down the

key until the indicator

then

Function
changes to "/- u n c
release the key.
The function setup mode is
activated,

and the first item,

[ i. h.u.

(Bar graph) 1]
appears. (See "4.2 Description of
Functions" on page 13.)

2 Selecting the next item

B.5EL 0

Press the | Function | key.
The indication changes to the next
item,

[<?. 5 E L 0 (Limit

function)].

3 Selecting an item

Pressing the [ Function | key

3. Rl

advances the function items at the
rate of one item per press.

4 Changing the content of an item Select the item to be changed with

the I Function"] key.
Each press of the | Zero/Tare [ key

changes the digit on the right end.
Select the desired one.

g

5 Terminating the function selection

I. o.c.

Press the | Set | key.

The balance terminates the function
setup and returns to measurement
mode.

y

12

4.2 Description of Functions

Item

Bar graph display

Limit function

n

limit

ted

nly whe

s

activa

1%

nT °

Co c

b

condition

Judgement

range

Number of

points for

judgement

Auto-zero

(zero-tracking)

Auto power-off

Respo

Stability

nse speed

parameters

Interface

Setup

measur

disp

of units of

sment to be

layed"

1

Register selected

measuring units with

| Function key.

Set Value

1, b.0.

ESEL

E

I.L~o.

EEL ,

E'5'.P

..

El. HO

s:

HP.

S r'E

S. Sd.

'1.

IF.

d I 'D. U.

8'SS.u.

n

u

* I

*0

/

1

•k 1

E

!~l

U

& 1

t

t

(-/

U

* 1

n

u

* 1

0

t

1

E

*3

'-/

5

/

I

*,£'

3

H

0

-i5r ,'

E

•A-1 D 1

-A-2 / S'

IS
IS

i n

i i

18
r-i

IR
Ib
IE
Id
IE

Description
Disable

Enable
Disable
Enable

Always judge (judges even when the balance is unstable)

Judge only when the balance is stable (does not judge
if the balance is unstable)

Ranges beyond +5 graduation is judged (ranges +5
graduation or below, including negative ranges, are not
judged.)

The entire range is judged (the entire range, including
the negative, is judged).

One-point setup Qudges between OK and LO)
Upper-limit and lower-limit values are set up Qudges

among HI, OK and LO).
Disable
Enable

This function automatically sets the zero point
exactly to zero to prevent slight deviations.

Disable (balance operates
continuously)

Enable (balance powers off in
approximately three minutes)

This function is
available only when
the balance is battery­operated.

Measurement by consecutive weighings.

Fast

I

Slow

Wide (mild)

i

Narrow (strict)
Disable input/output

Six-digit numeric format
Seven-digit numeric format

[g]

[ C± ] (ct)
[ 02 ] (oz)

[

/b ](">)

[ O2 t ] (ozt)

[ cWfc 1 (dwt)

[ • Lower right ] (grain)

"[ -t» 1 (tlJHong Kong}
[ "tl •Upper right] (ti_Singapore,Malaysia)
[ -j-f • Lower right] (tl_Taiwan)
[mom]

[ "to ] (to)

Items marked it are the default factory settings.

•A-1 —A-5: default settings [8 IS.u.]~[8 5. Su.]

13

4.2 Description of Functions (cont.)

Setup

of

units

of

measurement

to be

displayed*"

1

Display

of the
auxiliary scale
interval"

2

GLP-compliant
print1"

3

Output format
while

the

auxiliary

scale interval

is

displayed"

2

8 l.5.u.

essu

c

l. R <

0.0 LP

Ft.Fr F

*3 30

TV4 IF

*5 00

n

u

a i

*o

i
i

i

i

3

*3

[Pcs]

[%!
Unit

not set

Disable
Enable

(0 is the

auxiliary scale interval.)

Note:

The

auxiliary-scale-interval place does

not

represent a verification scale interval.

Use it

only

as a

reference value.
Disable
Enable

Prints a GLP-compliant format

at

calibration.

(Refer

to "9.3

GLP-compliant print" (Page

31).)

No output

is

made while

the

auxiliary scale interval

is

displayed.

Output

is

made even while

the

auxiliary scale interval

is

displayed.

Output

is

made with

7"

added

to the

left

of the

auxiliary-

scale-interval place.

•>K2

•>K

3

-jir5:

default factory settings

[H

I.

h.

u.]~[H

h. 5.u.]

Can

be set

only

for a

model

on

which

the

lock switch

is off.

For a model

on

which

the

lock switch

is on,

only

the

units

set

when

the

switch

was off are

effective.

The AJ[H]-820CE does

not

provide this function.

This setting

is

only available with

the

AJH-E Series.

4.3 Interface Section

Displayed when ['i!

E"3] is set to [

/]or[c']

Item

Output Control

Baud Rate

Parity

Set Value

'"? 1. O.C.

13. b.L

r

l3. PR.

n

u

i
i

a

3

S'

s

s

' "a'

3

'-/

1

' 3

Description

Stop output
Output continuous

at all

times

Output continuous

if

stable (stop output

if

unstable)

Outputs

of wheth

once

by

pressing I Memory

| key

(irrespective

er stable).

Outputs once

if

stable. Outputs

if the

balance

is

stable

when a sample

is

loaded after

the

preceding sample

has

been removed

and the

balance indicated zero,

or

less.

Outputs once

if

stable,

and

stops output when unstable.

Even

if the

sample

is not

replaced,

the

balance

is

output

once when

it

stabilizes next time (including

the

zero

indication).

Outputs
unstable
the balar
once.
Pressing
once

wh

once

if

stable,

and

outputs continuously when

.

Even

if the

sample

is not

replaced, output

of

ice stops when

it

stabilizes after being output

I Memory

| key

causes

the

balance

to

output

an stable.

1200

bps

2400

bps

4800"

bps

9600

bps
None
Odd
Even

Displayed only when

[1. l.h. a

(7-digit numeric format)]

is

specified.

denotes a factory-setting
The data interval

in

continuous output mode

is 0.1 to 1

second.

on weighting conditions

and

other factors.)

(The interval varies depending

14

5. Switching Function for Units of Measurement
Pressing the | Function] key allows the user to switch the unit of measurement to [g], [ct], [%], and so
on.
Up to five different units can be registered for use only when the function key is properly set on a
balance for which the lock switch is off.

5.1 Switching Units of Measurement

Switching the units of measurement to be displayed

Press the [ Function | key.
Each press advances through the units

of measurement to be displayed.

s&The balance is shipped from the

factory with the following default
setup:

[g] -> [ct] -> [Pcs] -> [%] -» [g]

—>•••

5.2 Setup of Units of Measurement (Only when the lock switch is off)

When values [8

1.5.

u.] to [8 5.5. u.] are entered prior to use, the desired unit of measurement to be

displayed can be chosen simply by pressing the [ Function"! key- For more information on the units
of measurement that can be set here, please refer to "4.2 Description of Functions" on page 13.

Example:To change the default factory settings to pound units, use [BE. Su] in the factory

settings.

1 Display the function item [8

c'.

5. u. I Ll] Press and hold down the [ Function |

key.
Release the key as [/- u n c ] appears

on the display.
The function setup mode is now
activated and the first item is displayed.

Press the | Function! key several more

times,

until [5'c! 5. u. I '-/] appears.

2 Setting the unit to a pound

8E.5.U.

8E.S.u. 15

Press the | Zero/Tare | key several
times to specify [8c'. 5.u. IS]-

15

Example:To change the default factory settings to pound units use [id c. S.

<_<.]

in the factory

settings, (cont.)

3 Pressing the [Set] key to restore measurement mode.

S£Su IB

a on

nig

SJ

Pressing the | Set | key will reset the
measurement mode

4 Pressing the [Function] key to change the units of

measurement

g

Pcs

Press the | Function] key.
Each press of the key changes the units
of measurement to be displayed, as
follows: [g] -* [Ib] -»[Pcs] -> [%] -> [g]

'b

r

it Key Points of the Procedure it

1.

When set values are entered in the function items [8

I.

5. u.] to [8 5. S. u.] prior to use, the
desired unit of measurement to be displayed can be selected simply pressing the | Function"]
key. For more information on the units of measurement that can be set, please refer to "4.2
Description of Functions," on page 13.

2.

The units are displayed in the same sequence as the settings made from [8

1.5.

u.] to

[8S.5.U.].

3. If [0u] is set, no unit of measurement will be displayed, even when units of measurement are set
in subsequent items.

4.

[0 0] cannot be set in [8

l.5.u.]-

5. If the same unit of measurement is set multiple times, the second time (and all subsequent times)
the unit(s) occurs, it will be ignored when the display switches.

6. The units can be set only on a balance for which the lock switch is off. Units cannot be set on a
balance with a lock switch sealed.

7. When units other than [g] or [ct] is selected and the power is turned off, [g] is automatically
selected the next time the power is turned on. ( under the lock switch in on.)

16

6. Counting Pieces

To implement piece-counting, the specified samples are loaded on the balance, and their average unit
weight (hereinafter, simply the "unit weight") is entered and saved. The procedure for saving unit
weights is called sampling.

The counting procedure consists of loading articles that have already been sampled on to the balance.
The number of pieces is then calculated by dividing the total weight of the loaded articles by the unit

weight saved in memory. Piece counting cannot be implemented unless sampling has already taken

place.

Sampling Counting Pieces

Weight

10g

Number of samples 10 pieces

Total weight _ 500 g

Sample unit weight 1 g

=Sample

unit weight

= 500 pcs.
= Measured

number of

samples

JKIf samples to be counted deviate widely in weight, or a higher measure of accuracy is desired, it is

recommended that users use the "Raising the Counting Accuracy" method. This procedure results
in greater precision by increasing the number of samples used in the sampling operation.

6.1 Sampling

1 Activating the counting mode

Pcs

Press the | Function | key to display
[Pcs].

2 Resetting the indication to zero

Pcs

a

Place the tare and press the

I Zero/Tare~| key.
The tare is subtracted and the balance

now indicates zero.

3 Starting the sampling

Press the | Set | key.

The display flashes a number, such as

[o n I £?]. This means that ten
samples are to be loaded.
The sampling number that was used in
the previous sampling will be displayed

here.

17

4 Changing the sampling number, if necessary.

How to change the value

m

/

n n

I U U

3D

If samples to be counted widely deviate
in weight, or a higher measure of
accuracy is desired, it is recommended
that users change the sampling number
to a larger value.

Press the | Zero/Tare~| key.
Each press of the key changes the value
on the right end. Select the desired value.
If the sampling number need not be
changed,

go on to the next step.

5 Loading samples

M

\

I / N I

on 30

Load the number of samples displayed.
Count the samples precisely and load

them in the center of the measurement

pan.

6 Saving the unit weight of samples

Pos

3D

Press the | Memory~| key.

The balance saves the unit weight and

reverts to measurement mode.

it

Key

Points

of the

Procedure

^

1.

While the samples are being saved, the value indication disappears and only [M] flashes to

indicate that memory saving is underway. If the balance is affected by wind or other vibrations
during this process, the saving time may be prolonged.

2.

If [<L - E r r ] appears, it indicates one of the following states:

(1) The weight of one sample (measurable unit weight) is insufficient.

For the range of unit weights that can be measured and saved, please refer to "13.
Specifications," on page 41.

(2) In the sampling of Operation Step 3, press the | Set [ key with the samples loaded on the

balance.

S*; If [L -Err] appears, the sampling is interrupted and the data in progress is not saved.

3. The operation for increasing counting accuracy is referred to as the Memory Update Method.
This procedure updates the memory with a unit weight that represents a more precise average by
gradually increasing the sampling number.

This operation improves counting accuracy and is recommended for the following cases;

(1) When the samples to be counted deviate widely in weight or the number of samples

displayed deviates.

(2) When greater accuracy is desired.

4.

If [R d d] appears in Memory Update Method, it indicates that a counting error is likely due to the

small number of the samples loaded on the balance. [M] will light up at the judgment indication
"LO."

As the memory update continues, counting accuracy improves and the above indication

disappears.

5. If you change the sampling number, subsequent sampling will start from the new sampling number.

18

6.2 Increasing the Counting Accuracy (Memory Update Method)

SKThis procedure is the same as the sampling procedure described on the previous page up, to the

point at which the sampling number is changed.

1 Loading samples

O

\ I / \ I /PCS

an ID

7|

'

•' I ^ ' I ^

Load the number of samples displayed.
Count the samples precisely and load

them on to the center of the

measurement pan.

2 Saving the samples

10 pieces saved

Press the | Set | key.
The unit weight of the samples is saved,

and the display changes to a flashing
value.

This flashing value denotes that

the Memory Update Method is currently

active.

Q

3 Adding samples

O

I

D

Add approximately an equal number of

samples as the number currently
displayed.

Add them gradually, in

groups of approximately the same

number, until the number of samples is
approximately double. The additional
samples need not be counted.

4 Saving the samples

20 pieces saved

Press the | Set [ key.
After the unit weight of the samples has

been saved, the display begins to flash,
indicating that the Memory Update
Method is still running.

5 Repeating the addition and saving of samples

O

Repeat steps 3 and 4. The eventual

total number of samples to be saved
should be approximately 1/5 to 1/2 of
the number of samples to be measured.

6 Terminating the sampling

125 pieces saved

Pcs

Ic'S

Press the [ Memory | key.

The balance saves the unit weight and

returns you to measurement mode.

19

7. Measuring Percentage

The percentage measurement function operates by weighing an actual sample, selected as the
reference, and saving its weight as the reference value and indexing it as 100%. When a
measurement sample loaded on the balance is lighter or heavier than the reference, its weight is
indicated as a percentage (%) value relative to the reference weight.

1 Activating the percentage mode

Press the | Function"] key to disaplay

2 Setting the reference value

\ I / \ I / \ i /

P. 5 Eh %

/ i \ i i \ /1 \

Press the | Set | key.
The display begins flashing

[P. 5 E t ]• The balance is now
ready for reference value setup.

D

3 Loading the sample Load the reference sample.

P. SEh %

\ / i \

4 Saving the reference value

i

r~>

n t~i I~I o/

i u u. u u I"

Press the | Memory | key.

The balance indexes the weight value of
the reference sample as 100% and
returns you to measurement mode.

5 Loading a sample to be measured

S5.3rl

The balance now indicates the weight of
the loaded sample as a percentage (%)
value relative to the reference value.

20

it Key Points of the Prcedure ir

1.

While samples are being saved, the value indication disappears temporarily, and only the [M]

mark flashes. If the balance is affected by wind or other vibrations during this process, the
saving time may be prolonged.

2.

If [L " II r r ] appears briefly, it indicates one of the following states:

(1) The weight of the reference sample is insufficient.

For the limit weight that can be saved (% limit weight), please refer to "13. Specifications," on

page 41.

(2) While setting up the reference value in Step 2, the | Set | key has been pressed while the

samples were loaded on the balance.

$Klf [!_ - E r r ] appears, sampling has been interrupted and the sample value being processed

will not be saved.

3. The minimum intervals between percentages in the unit switch from

1%,

to

0.1%,

to

0.01%,

depending on the reference weight from the sampling.

21

8. Limit Function

The limit function judges measurements according to a limit value saved in the balance.
The function shows the judgement result by displaying the [M] mark as either HI (excessive), OK

(appropriate), or LO (insufficient). This function is very useful when discriminating between
conforming and nonconforming articles. It is also useful when measuring a given constant quantity
consecutively, in conjunction with a range of reference weights defined by upper- and lower-limit
values.

This function can be used in weight mode, counting mode, or percentage mode.

Limit value input methods
Either of the following two methods can be used in the different modes:
(1) Actual quantity setup method An actual sample is loaded on the balance and its weight

saved as the limit value.
(2) Numeric value setup method The limit value is entered with a key stroke.
SKThe limit values entered are held in memory, even when the balance is powered down.

•&The respective limit values for weight mode, counting mode, and percentage mode are set up

independently.

Indication of judgement result
The [M] mark lights up as either HI, OK, or LO on the left side of the display, indicating the result of

judgement.

Judgement Results

HI (excessive)

OK (appropriate)

LO (insufficient)

Upper/lower-limit setting

Upper-limit value < measurement
value

Upper-limit value > measurement
value > lower-limit value

Lower-limit value > Measurement
value

One-point setting

No indication

Limit value < measurement value
Limit value > Measurement value

8.1 Limit Function Setup

1

Invoking the function

OOOQe

Continuous

pressing

F u n c

Key

I-, released

Press and hold down the | Function]
key.

Release the key when [/c u n c ] is
displayed.
The display changes to the function
setup and the first item is displayed.

22

8.1 Limit Function Setup (cont.)

2 Selecting a function item

Press the | Function | key.

The display changes to the next item
[Limit Function].

3 Setting the limit function

?.S£L •'

Press the | Zero/Tare | key to set the

value on the rightmost side to [1].

Limit function

operations

4 Setting the judgement condition

l.Co. I

Press the | Function I key.
The display changes to [Judgement

Condition].
Press the | Zero/Tare"] key to select

the desired condition.

Judged at all times Judged when stable

5 Setting the judgement range

aa.L aa.L

u

Judge entire range

Press the | Function | key.

The display changes to [Judgement
Range].

Press the I Zero/Tare~l key to select

the desired choice.

Judge beyond +5

6 Setting the number of judgement points

Press the [ Function"] key.

The display changes to [Judgement

Points].
Press the | Zero/Tare~] key to select

the desired choice.

One point set Upper/lower limits set

7 Terminating the function setup

IDOOt

Press the | Set I key.

The balance terminates the function
setup and returns you to measurement
mode.

23

8.2 Setup of Limit Values by Actual Quantity Loads

1 Starting the limit function

L. SEt

Continuous pressing

Key released

Press and hold down the | Set | key.
Release the key when [L. 5 E t ] is

displayed.

The currently set lower-limit value

flashes.

2 Loading the sample for the lower-limit value

•4*

\\\ I /.

n n n n .
u. u u u i

/ / I \ \

Load the sample of the lower-limit value

on the measurement pan.

3 Saving the lower-limit value

3.8 3 Sg

y u

Press the | Memory | key.

After the lower-limit value has been

saved,

the balance displays it briefly and

proceeds to the following setup,

i&lf One-point setup was chosen, the

setup is complete.

4 The upper-limit value

setup

H. SEt

M

\ \ \

anoo

The display now changes to

[K SEt], indicating that the upper-

limit value can be set.

The currently set upper-limit value

flashes.

5 Loading the sample of the upper-limit value

\ \ I / //

n n n n „

U.UUU

g

/ I I \ \ s

6 Saving the upper-limit value

Load the sample of the upper-limit value

on the measurement pan.

Press the | Memory | key.
After saving the upper-limit value, the

balance displays it briefly and
terminates the setup.

24

8.3 Setting up Limit Values by Inputting Values

1 Starting the limit function

L. 5Ei

Continuous pressing

Key released

[L

Set

[ key.

5 Eh] is

Press and hold down the

Release the key when
displayed.
The currently set lower-limit value

flashes.

2 Opening the value input screen

Press the | Zero/Tare | key.
All the digits are displayed, with the one

on the right end flashing. This flashing
digit is the one that can be changed.

3 Entering a value

Press the | Zero/Tare | key again.
Pressing the key repeatedly changes

the flashing value until the desired

number is entered.

D

4 Selecting a digit

Press the | Function | key.

•*>

The flashing moves to the digit on the
immediate left. Each time the key is
pressed,

the flashing digit moves one
position left. When the leftmost digit is
selected,

the flashing advances to the

rightmost digit position.

5 Repeat Steps 3 and 4

\ I /

Enter the lower-limit value by selecting a
value with the

Zero/Tare key and
moving the digits with the | Function
key, as needed.

1

6 Saving the lower-limit value

Press the | Memory | key.

After saving the lower-limit value, the
balance displays it briefly and proceeds
to the next setup.

>>Klf one-point setup was chosen, the

setup is complete.

7 Setting up the upper-limit value

H. Sffc

\ \ I / /

The display changes to [H. b h t ],

indicating that the upper-limit value can
be set.

If there is an upper-limit value already

set, that value will flash.

25

8.3 Setting up Limit Values by Inputting Values (cont.)

8 Opening the value input screen

aaaaoo't

Press the | Zero/Tare | key.
Follow the same procedure as in "Step

2."

9 Setting the upper-limit value

\ I /

~V'T

V"

1

V33WSSB

Follow the same procedure as

described for the lower-limit value and

enter the upper-limit value.

D y

10 Saving the upper-limit value

Press the ] Memory 1 key.
After saving the upper-limit value, the
balance displays it briefly and
terminates setup.

1.

3.

4.

5.

Key Points of the Procedure it

The limit values you have set can be checked each time you press the | Set [ key.
The balance displays the lower-limit value after showing [L. S £ t ], and the upper-limit value
after showing [hi 5 E t ]•

Continuous pressing

J

x

\ I / /

\ \

Upper-limit value

displayed

1000s

Lower-limit value

displayed

Measurement mode

restored

2.

If you make a mistake, press the | Function] key during the setup of actual quantities or the

1 Set 1 key during the setup of values.

If you press the | Memory | key while a value is flashing, an actual quantity will be set based on

the weight currently loaded on the balance. Pressing the j Zero/Tare~| key at this time displays

the value input screen.
If the [^] mark lights up for all three judgement indicators, HI, OK, and LO, the lower-limit value

set exceeds the upper-limit value. Check the values, since mistakes can occur with entries, as in
cases when the upper-limit value is specified with a negative

sign.

When the
Press the

M] mark is flashing on the value input screen, the sign on the left end can be changed.

Zero/Tare"! key to switch between the positive and negative signs.

26

9.

Calibrating the Balance

Since electronic balances are affected by gravity gravitational acceleration, they produce different
values in various locations. Therefore, before use, balances must be calibrated at the location where

they are installed. Calibration is also required after long periods without use, or if a balance begins to

produce inaccurate values.
Calibration of a balance, or "span adjustment," is required to produce accurate measurements.

9.1 Calibration of AJ-CE Series

Applicable models: AJ-220CE, AJ-420CE, AJ-620CE, AJ-820CE, and AJ-1200CE(for AJ­220CE.420CE, and 1200CE, applicable when the lock switch is off.)

>£•

Span adjustment should be performed with the balance installed perfectly level and without any load

on the measurement pan.

1 Activating the span adjustment function

F u n c

CRL

Key released

Pressed

continuously

Press and hold down the | Function |
key.
Release the key when the display
changes from [F a n c] to [L Ft L ].

2 Starting the span adjustment

Press the Function key while •

holding down the Zero/Tare key.

Press the j Function | key while holding
down the j Zero/Tare] key, then

release both keys simultaneously. The
display flashes [o n 0], indicating
that zero-point calibration is underway.

Release

simultaneously.

3 Zero calibration

on 0

•' r ' i "•

Zero-point calibration is finished when
the display changes to [o n F. 5 ].
Proceed to the calibration of the
capacity point.

O n

F.S

CAL

27

Calibrating the Balance (cont.)

4 Calibrating the capacity point

\

/

o

n

\

/-.

/

yCfi

L

Load the calibration weight in the center
of the balance.

The display flashes, indicating that
capacity point calibration is in progress.

5 Terminating the span adjustment

on

F.S

I N ' I

N

>

GAL

When the calibration of the capacity

point is finished, the original
measurement mode is restored.

0

- | - | - I F

EOO.no Gig

it

Key

Points

of the

Procedure

it

1.

Pressing the | Function | key in Step 2 interrupts the span adjustment and returns you to the

original measurement mode.

2.

The calibration weight used for span adjustment should be heavier than half the capacity of the

balance.
To implement a calibration as precisely as possible, use a weight close to the capacity of the
balance.

•& Calibration weights can be ordered from Shinko. For ordering information, please contact
Shinko.

3. If problems arise during span adjustments, one or more of the following error messages will
appear:

(1) [o- E r

r ]: The calibration weight exceeds the capacity of the balance.
(2) [ i - E r r ]: The calibration weight is less than half the capacity of the balance.
(3) [£' - E r r ]: The difference between before and after calibration values is too large (1.0%

or more).

2<;lf error messages are displayed, calibration cannot take place.

Check the weight and re-calibrate. If the same error continues after repeated calibrations using
the correct weight, please contact our Marketing Division or Technical Service Division.

28

9.2 Calibration of AJH-CE Series

Applicable models: AJH-220CE, AJH-420CE and AJH-620CE

JK Span adjustment should be performed with the balance installed perfectly level and without any load

on the measurement pan.

1 Invoke the span-adjustment function.

S.R. CRL

U

Hold down.

Release your

finger.

Hold down the | Function I key, then
release your finger when the display
switches from [F u n c ] to [5.

R.

II f

2 Start span adjustment.

5.R CRL

-. I / v I /

CRL.

0

CAL

0)

Press the Function key while
holding down the Zero/Tare key.

Release both
fingers at the
same time.

Press the | Function | key while holding

down the | Zero/Tare] key, then

release both fingers simultaneously.
Display will change to a flashing [C R L
u ] and the zero-point will be calibrated

automatically.

3 Zero-point calibration

CRL.

CAL

' I N

Once zero-point calibration is
completed,

display switches to [C R L.
o n ]. Calibration now proceeds to that
of the weighing capacity point.

/_ n /_.

GAL

4 Calibration of weighing capacity point

r o i

/_ n <_.

CAL

CRL.

\ I /

CAL

•v i \

Slowly and fully turn the calibration knob
in the direction of [Calibration],
The balance assumes the state where
the calibration weight is loaded on the
measurement pan.

The display starts flashing and the
balance automatically adjusts the

weighing capacity point.

29

5 End of calibration of weighing capacity point

CAL

CRLoFF

Display switches to [l_ R Lo h h ] to
indicate that adjustment of the weighing

capacity point is complete.

6 End of span adjustment

CAL

b u 5 b'

E n d.

Return the calibration knob back to the

[For Use] position. To do so, slowly
turn the knob until the internal
mechanism engages with a click.
The balance now assumes the state
where the calibration weight is removed
from the measurement pan.

[b u 5 b'] -> [E n d] is displayed and

measurement mode restored.

it Some Useful Tips for Operation it

1.

2.

3.

4.

Pressing the | Set | key in Step 2 cancels span adjustment and restores the original
measurement mode.

Do not attempt to forcibly turn the calibration knob or stop it halfway during the stroke. Turn it

slowly and steadily.

For the [Calibration] position, turn the knob until it contacts the end of the stroke.
For the [For Use] position, turn the knob until the internal mechanism engages with a click.

The calibration knob is normally used in the [For Use] position. Note that [C Fl L.a F F] will be
displayed when power is turned on with the knob in the [Calibration] position or when set to the
[Calibration] position during measurement.

Wind or vibration affecting the balance may result in the process not proceeding beyond the
flashing display of [0 Ft L. D].
Always use windscreen and stable, vibration-free bench.

5. Should the balance display [3 - E r r] at the end of zero-point adjustment in Step 2, this means
that the zero-point is substantially different from that of the factory setting.

(Example) Calibration is initiated with something loaded on the measurement pan.

6. Should the balance display [S' - £ r r ] when the calibration knob is returned to [For Use] at the
end of span adjustment, this means that the weighing capacity point is substantially different from

that of the factory setting.

(Example) Some object was inadvertently loaded on the balance during weighing capacity point

adjustment.

£Kf the error described in Items 5 or 6 above is displayed, span adjustment need not be done.

Simply repeat the same span adjustment after removing the object from the measurement pan.
If the same error still appears after you repeat adjustment as described above, please contact our
Marketing Division or Technical Service Division.

30

9.3 GLP-compliant print

At calibration,

the

AJH-CE Series enables printing

in a

format compliant with GLP.

Set the

function

to

the GLP print support ([EL

u.L P I])

side, then connect

the

balance

to a

printer

or

other equipment.

When calibration

is

complete,

the

balance prints

out the

format illustrated below.

Since only items

are

printed,

the

data should

be

entered manually

by the

person who conducted

calibration.

^Reference: "4.2 Description

of

Functions" (Page

13)

"9.2 Calibration

of

AJH-CE Series" (Page

29)

GLP-Compliant Print Form

••CALIBRATION**
MODEL:

S/N:

ID:
DATE:
TIME:

*CAL. END

NAME:

***************

<- Title
«— Model

of

balance

<— Serial No.

of

balance

«-

ID No.

«— Date

of

calibration

<— Time

of

calibration

«— End

of

calibration

•-

Signature

of

person

in

charge

JKWhen

the

CSP-16(0)

is

connected

for

printing,

set the dip

switch No.3

ON

(control

by

scale),

and

No.7 OFF (manual printing

off).

For more information

on the

printer, refer

to the

printer's operation manual.

Caution:

Printing is done only when calibration ends normally. The balance will not print if calibration ends

abnormally with [3 - E r r ], [S' - £ r r ], or [51 D P] being issued.

31

10.1 Terminal

Terminal Number

1
2
3

4
5

10.

Input/output functions

Numbers and Functions

Signal

EXT.TARE

DTR
RXD
TXD

GND

Input/output

Input

Output

Input

Output

—

Function & remarks

External tare subtraction*

HIGH (when balance is powered-up)

Receiving data

Transmitting data

Signal ground

Compatible

plug:

TCP 0556-01-0201 (Hoshiden - supplied with balance)

,1

RS232C connector (DIN 5-pin): Rear panel

>*STare

subtraction (zero adjustment) is possible by connecting an external tare subtraction input and a
signal ground, through contacts or a transistor switch. When following this procedure, secure a
connection time of at least 400 milliseconds. (When the switch is off, the voltage maximum is 15 V;
when the switch is on, the sink current is 20 mA or less.)

Caution:

Before plugging in the connectors, unplug the AC adapter.

32

10.2 Connection between Balances and Personal Computers

••• Sample connection with an IBM-PC/AT compatible •••

RXD
TXD
GND

IBM-PC/AT compatible

D-SUB9P

TXD

RXD
GND
DCD

RTS
CTS
DSR
DTR

3

2

5

1
7
8
6

4

-^ *—.

• •—•*

4

Balance

DIN5P

3
4
5

Sample connection with PC9801 •••

TXD

RXD

GND

DCD
RTS
CTS
DSR
DTR

PC9801

D-SUB25P

2

3

7
8
4
5
6

20

».

4

d

Balance

DIN5P

3
4
5

RXD
TXD

GND

33

10.3 Interface Specifications

(1) Transmission system
(2) Transmission rates
(3) Transmission codes
(4) Signal levels

Serial transmission with start-stop synchronization

1200/2400/4800/9600 bps.
ASCII codes (8-bit)
Compliant with EIA RS-232C

HIGH level (Data logic 0) +5 to +15 V
LOW level (Data logic 1) -5 to -15 V

(5) One-character bit configuration Start bit: 1 bit

Data bit: 8 bits
Parity bit: 0/1 bits
Stop bit: 2 bits

(6) Parity bit:

none/odd/even

Logic

"1"

Logic "0"

LSB MSB

1

Data bit

1

Start bit

Stop bit

Parity bit

(may be omitted)

34

10.4 Output Data

By changing the function settings on the main unit of the balance, users can select either of the

following formats: (See "4.2 Description of Functions," on page 13.)

10.4.1 Data Format

(1) Six-digit numeric format

Composed of 14 characters, including the terminators (CR = ODH, LF = OAH).

1

P12D13D2

4

| D3

5

D4

6

! D5

7

| D6

8

| D7

9

U110U2

11S112S213CR14

LF

(2) Seven-digit numeric format

Composed of 15 characters, including the terminators (CR = ODH, LF = OAH). A parity bit can
also be appended.

1

P12D1

3

I D2

4

D3

5

| D46! D5

7

D6

8

D7

9

| D8

10U111

| U2

12

S113S214CR15LF

(3) Six-digit numeric format for model provided with an auxiliary scale interval

Composed of 15 characters, including the terminators (CR=0DH, LF=0AH), with 7" added to the
left of the auxiliary-scale-interval place.

1

P1

2

D1

3

D2 !

4

D3

5

D4

6

D57D6

8

D79D8

10U111U212S113

S214CR

15
LF

(4) Seven-digit numeric format for model provided with an auxiliary scale interval

Composed of 16 characters, including the terminators (CR=0DH, LF=0AH), with 7" added to the
left of the auxiliary-scale-interval place.

1

P1

2

D1

3

! D2

4

D3

5

j D4

6

I

D5

I

7

D6

8

D7

9

I D8

10D911U112U213S114

I S2

15CR16

LF

10.4.2 Polarities (P1: one character)

P1

+

-

(SP)

Code

2BH

2DH

20H

Description

When data is zero or positive

When data is negative

When data is zero or positive

35

10.4.3 Numeric data

Six-digit numeric format: (D1-D7: seven characters)
Seven-digit numeric format: (D1-D8: eight characters)
Six-digit numeric format for model provided with an auxiliary scale interval:

(8 characters, from D1 to D8)

Seven-digit numeric format for model provided with an auxiliary scale interval:

(9 characters, from D1 to D9)

D1-D7 (D8)

0-9

•

(SP)

/

Code

30H-39H

2EH

20H

2FH

Description

Numerical value 0-9
Decimal point (floating position)

SKWhen the data is an integer, it may be omitted and

replaced with a blank space (SP) in the lowest-order place.

Space: zero of leading portion of value (leading zero
suppress)

Delimiter to be inserted to the left of the auxiliary-scale-

interval place

10.4.4 Units (U1, U2: two characters)

S& All the codes are ASCII codes.

U1

(SP)

c

0

l_

0
D

G

T
T
T

M

t

(SP)

P

U2

G
T

Z
B
T

W

R
L

|_

L

0

o

%

C

Code

20H

43H

4FH

4CH

47H

54H
5AH
42H

4FH ! 54H
44H
47H

54H
54H
54H

4DH

74H

20H

50H

57H
52H

4CH
4CH
4CH

4FH

6FH

25H

43H

Meaning

gram

carat
ounce
pound

troy ounce

pennyweight

grain

tael (Hong Kong)

tael (Singapore, Malaysia)

tael (Taiwan)

momme

tola

percentage

pieces

Balance indicators

g

C±

QZ

ib

02 1:

Ol'M"t

• (lower right)

ti

ti • (upper right)
ti • (lower right)

mom

-to

%

PCS

36

10.4.5 Result

of

judgment when operating

the

balance with

the

limit function

(S1:

one

character)

S1

L

G

H

(SP)

Code

4CH

47H
48H
20 H

Description

LO (LOW)

OK (GOOD)

HI (HIGH)

No limit value specified

10.4.6 Status

(S2: one

character)

S2

S

U

E

(SP)

Code

53H
55H

45H
20H

Description
Data stable

Data unstable

Data error (data other than S2 is invalid.)

[o

- E r r ], [u -Err]

No status specified

10.5 Input Commands

Users can control the balance remotely by transmitting commands from an external device. Two

types of control commands are available:

(1) Instruction for tare subtraction

(2) Setup of output control

10.5.1 Command Transmission Method

(1) A command is transmitted to the balance from an external device. Since the data flow

(transmission and reception) is stored by a full-duplex system, commands can be transmitted
regardless of their data-transmission timing.

(2) When the balance has executed the received command, it activates a normal end response or

transmits the requested data, via the transmitting command. If the balance was unable to
execute the command or received an erroneous command, it transmits an error end response. If
the balance is working properly, it usually returns a response within a second after it receives the
transmitted command. If the balance receives a transmission while it is conducting a procedure
(such as the setup of a function or a span adjustment), it will transmit a response when the
procedure finishes.

(3) When transmitting more than one command to the balance from a remote device, wait until you

have received a confirmation on the first transmission before transmitting the next.

10.5.2 Command format

(1) Command format

Composed of four characters (ASCII), including the terminators (CR=0DH, LF = 0AH)

1

C1

C2

CR LF

37

(2) Instruction for tare subtraction (zero adjustment)

C1

T

C2

(SP)

Code

54H 20H

Description

Instruction for tare

subtraction (zero

adjustment)

Value

None

Response

A00:

Normal end

E01:

Tare subtraction cannot be

executed due to an error in

the weight value.

(3) Setup of output control

C1

o
o
o
o

o

o

o

o
o

o

C2

0
1
2
3

4

5

6

7

8
9

Code
4FH
4FH
4FH
4FH

4FH

4FH

4FH

4FH

4FH
4FH

30H
31H
32H
33H

34H

35H

36H

37H

38H
39H

Description
Stop output
Output continuous at all times
Output continuous if stable (stop output if unstable)
Outputs once by pressing | Memory | key (irrespective of

whether stable).

Outputs once if stable. Outputs if the balance is stable when a
sample is loaded after the preceding sample has been removed

and the balance indicated zero, or less.

Outputs once if stable, and stops output when unstable. Even
if the sample is not replaced, the balance is output once when it

stabilizes next time (including the zero indication).
Outputs once if stable, and outputs continuously when

unstable. Even if the sample is not replaced, output of the

balance stops when it stabilizes after being output once.
Pressing | Memory | key causes the balance to output once

when stable.
Output once immediately.

Output once after stabilization.

output controls executed with commands [OO] - [07] work the same as the output controls

executed through function setup on the main unit of the balance.

The commands [08] and [09] are data request commands issued to the balance.

i&Once any command from [OO] to [09] is executed, the balance runs that function until another

command is entered. However, if the balance is switched off and on again, the output control is

reset to the initial function (function set value).

10.5.3 Response Output

(1) Response output format

Composed of five characters, including the terminators (CR = ODH; LF = OAH)

12 3 4 5

A1

A2

A3 CR LF

(2)

Types

A1

i

A

i

E

j

of response outputs

A2

0
0

A3

0

1

Code

41H
45H

30H
30H

30H
31H

(Abnormal

Description

Normal end

Command error

command received,

other errors)

38

11.

Operating the Balance with the Battery

This function can be used only when the balance is battery-operated.

11.1 Specifications

;• Built-in nickel-cadmium battery

• Charging time: Approximately 12 hours

• Drive time: Approximately 32 continuous hours

• Number of charge/discharge cycles: 300 or more

11.2 Charging Method

JSWhile the balance is battery-operated, [Qni] stays on. The indicator flashes [£3] (charging

required) when battery capacity decreases. If the balance flashes [£2]. charge the battery by

following these steps:
(1) Connect the dedicated AC adapter to the balance.
(2) Turn the balance off.
(3) Charging takes approximately 12 hours, with power switched off.

11.3 User Precautions

1.

Once charging is complete, use the balance without the AC adapter to avoid over-charging. This

can occur since the balance continues to charge the battery with a weak current when the power

is switched on. Overcharging will also decrease battery life.

2.

When the balance is used for the first time after purchase, the operating time may be shorter than

when using a fully charged battery. This is due to natural discharge of the battery. Although the
balance can be used while [OS] is flashing, it should be recharged as soon as possible.

3. When the battery displays no indication, or an indication disappears quickly after the balance is
switched on, battery capacity is low. In these cases, either charge the battery immediately or
plug in the AC adapter.

4.

Charging the battery while [t]M||] is displayed reduces battery life.

A

IA Cautions To operate the balance safely, observe the following (failure to do so could result in

malfunctions, breakage, burst batteries, or fire):

1.

Do not disassemble or modify the battery. Do not reverse the balance connection or short-circuit

the positive and negative polarities of the balance.

2.

Use only the supplied AC adaptor.

3. Do not incinerate used batteries. Dispose as hazardous material only.

39

12.

Troubleshooting

The numbers in ( ) indicate reference pages

Symptom

There is no indication on

the display.

The display is unstable.
[M] remains flashing

without changing.

Weight indication
contains an error.

The limit function does
not work.

[H d d] appears ([-4]
and a value flash at
[LO].)

[o-frr] appears
before the capacity is
reached.

[u -Err] is
displayed.

[fa - E r r ] is
displayed.

[d - E r r ] is

displayed.
During span adjustment

(AJ-CE):
[o - E r r ] is
displayed.

[ 1 - t r r ] is

displayed.
[<? - E r r ] is
displayed.

At span adjustment

(AJH-CE):
[3-Er rjis

displayed.

[H - E r r ] is

displayed.

During battery
installation:
The indication
disappears.
tt31] flashes.
No indication is
produced.

Cause

• The AC adapter is not connected.

• The balance is subject to air currents or
vibration.

• The balance is situated on an unstable
surface.

• An object is contacting the sample being
measured,

the measuring pan, or the tare.

• An error was made in the tare subtraction

procedure.

• The adjusters remain lifted, resulting in an

incorrect level.

• The indication values are inconsistent

after long hours of use, or because the
balance has been moved to a new
location.

• The limit function is not selected.

• The limit value has been erroneously

entered.

• Likely to produce errors in the counting

mode because the sample weight is
insufficient.

• Gross weight exceeded the capacity of the

balance (weight range = container +

weight of sample).

• A section of the mechanism is damaged.

• A foreign object is caught between the
measuring pan (pan base) and the balance.

• A section of the mechanism is damaged.

• The balance is exposed to static electricity
or noise.

• The electrical system of the balance is
malfunctioning.

• A weight heavier than the capacity was
used.

• The reference weight is less than 50% of
the capacity.

• Calibration produced an error of 1.0% or
more.

• Adjustment was performed with
something loaded on the measurement
pan.

• Mechanism was damaged for some
reason.

• The automatic power-off function was

activated.

• The battery capacity is low.

Possible remediation

-» Check that the AC
adapter is connected (8).

-> Check Precautions on
Use (2-4).

-> Review the tare
subtraction (10).

-»Check the level (8).

->•

Execute span adjustment

on the balance (27).

-> Check the operation of

the limit function (22 on).

-> Execute the Memory

Update Method (19).

-> Check the total weight.

-»Execute tare subtraction

again.

-> Contact our Technical

Service Division or your
local dealer.

-» Remove the measurement

pan and examine the

surface beneath it.

-> Contact our Technical

Service Division or your

local dealer.

-> Check that the span

adjustment procedure
was performed correctly
(27).

-> Check correct span­adjustment procedure
(29).

-> Consult our service
personnel or your dealer.

-> Switch on the power again.
Deactivate the Automatic
power-off function, if
necessary (13).

-> Recharge the battery (39).

-» Operate the balance with

the AC adapter.

40

13.

Specifications

13.1 Basic Specifications

Model

Capacity [g]

Verification scale

interval

Aux. scale interval [g]

Measurable unit weight

in counting mode [g]
Minimum weight in

percentage mode [g]

Weight measuring

method

Calibration method

Pan Size [mm]

Output

Windshield

Option

AJ-

220CE

220

0.01

0.001

0.001

0.1

AJ-

420CE

420

0.01

0.001

0.001

0.1

AJ-

620CE

620

0.01

b.oo"i

0.001

0.1

AJ-

820CE

820

0.01

-

0.01

1

AJ-

1200CE

1200

0.1

6.01

0.01

1

Tuning fork vibration method

With external calibration weight

4>118 mm

170 mm x 140 mm

AJH-

220CE

220

0.01

0.001

0.001

0.1

With

AJH-

420CE

420

0.01

0.001

0.001

0.1

AJH-

620CE

620

0.01

0.001

0.001

0.1

built-in weight

<j>118 mm

Compliant with RS232C

Provided

Not provided

Provided

Battery drive

13.2 Common Specifications

(1) Tare subtraction range Total capacity

(2) Liquid-crystal display (LCD) Seven segments (two segments in leading part),

Maximum digits indication: seven digits,

Segment height: 16.5 mm.
(3) Calibration (span adjustment) Span adjustment with external weight
(4) Overload indication [o - £ r r ] is displayed if weight capacity + 9

intervals are exceeded.
(5) Compatible printer CSP-16[0]

(6) Operating temperature and humidity ranges .. 10°C to 30°C, 80%RH or less

(7) AC adapter Dedicated AC adapter: 120 V AC - 9 V DC, or

230VAC-9VDC

(8) Lower limit of battery voltage 6V

41

13.3 Capacities

and

Minimum Indications

for

Different Indication

Units

^^-^^^ Model

Unit

of

^^~"^~-^^^

measurement displayed

^--^_

g

CC

(ct)

O2 (oz)

/fa (Ib)

OZ

"t(ozt)

oVw"fc

(dwt)

•

(grain)

"tl (Hong Kong)

"ti

(Singapore,

Malaysia)

'ti (Taiwan)

mom (momme)

'to

(to)

AJ-220CE/

AJH-220CE

220

0.01

0.001
1100

0.1

0.01

7.7

0.001

0.0001

0.48

0.0001

0.00001
7

0.001

0.0001
140

0.01

b.ooi

3300
1

6.1

5.8

0.001

0.0001

5.8

0.001

0.0001

5.8

0.001

0.0001
58

0.01

0.001
18

0.001

0.0001

AJ-420CE/

AJH-420CE

420

0.01

0.001
2100

0.1

0.01
14

0.001

0.0001

0.92

0.0001

0.00001
13

0.001

0.0001

270

0.01

0.001
6400

1

0.1
11

0.001

0.0001
11

0.001

o.oob'i

11

0.001

0.0001

110

0.01

0.001
36

0.001

0.0001

AJ-620CE/

AJH-620CE
620

0.01

0.001

3100

0.1

0.01
21

0.001

0.0001

1.3

0.0001

0.00001
19

0.001

0.0001

390

0.01

b.06i

9500

i

0.1

16

0.001

0.0001

16

0.001

0.0001

16

0.001

0.0001
160

0.01

0.001

53

0.001

0.0001

AJ-820CE

820

0.01

­4100

0.05

­28

0.0005

-

1.8

0.00005

­26

0.0005

-

520

0.01

­12000

b".2

-

21

0.0005

-

21

0.0005

­21

0.0005

-

210

0.005

-

70

0.001

-

AJ-1200CE

1200

0.1

0.01

6000

1

0.1
42

0.01

0.001

2.6

0.001

0.0001
38

0.01

0.001
770

0.1

0.01
18000

1

0.2

32

0.01

0.001

31

0.01

0.001
32

0.01
O001
320

0.1

0.01
100

0.01

0.001

Reading the Table

Top line: Capacity
Middle line: Verification scale interval
Bottom line: Auxiliary scale interval

42

14.

Conversion Table

of

Units

unit

1g
1ct

1oz
11b
1ozt
1dwt
1GN

1tl (HK)
1tl (SGRMal)
1tl (Taiwan)
1mom
1to

gram

1

0.2

28.34952

453.59237

31.10348

1.55517

0.06480

37.429

37.79936

37.5

3.75

11.66380

carat

5
1

141.74762

2267.96185

155.51738

7.77587

0.32399

187.145

188.99682

187.5

18.75

58.31902

ounce

0.03527

0.00705
1
16

1.09714

0.05486

0.00229

1.32027

1.33333

1.32277

0.13228

0.41143

pound

0.00220

0.00044

0.06250
1

0.06857

0.00343

0.00014

0.08252

0.08333

0.08267

0.00827

0.02571

troy ounce

0.03215

0.00643

0.91146

14.58333
1

0.05

0.00208

1.20337

1.21528

1.20565

0.12057

0.37500

penny
weight

0.64301

0.12860

18.22917

291.66667

20

1

0.04167

24.06741

24.30556

24.11306

2.41131

7.5

unit

1g

1ct
1oz
11b
1ozt
1dwt
1GN
1tl (HK)
1tl (SGRMal)
1tl (Taiwan)
1mom
1to

grain

15.43236

3.08647

437.5
7000

480
24

1

577.61774

583.33333

578.71344

57.87134

180

tael

(Hong Kong)

0.02672

0.00534

0.75742

12.11874

0.83100

0.04155

0.00173
1

1.00990

1.00190

0.10019

0.31162

tael

(Singapore,

Malaysia)

0.02646

0.00529

0.75
12

0.82286

0.04114

0.00171

0.99020
1

0.99208

0.09921

0.30857

tael

(Taiwan)

0.02667

0.00533

0.75599

12.09580

0.82943

0.04147

0.00173

0.99811

1.00798
1

0.1

0.31103

momme

0.26667

0.05333

7.55987

120.95797

8.29426

0.41471

0.01728

9.98107

10.07983
10
1

3.11035

tola

0.08574

0.01715

2.43056

38.88889

2.66667

0.13333

0.00556

3.20899

3.24074

3.21507

0.32151
1

43