A&D AD-4212A, AD-4212A-B, AD-4212B User Manual

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AD-4212A/B

AD-4212A-100/200/600/1000

D-4212B-101/102/201/301

Production Weighing Unit

INSTRUCTION MANUAL

1WMPD4001448C

No part of this publication may be reproduced, transmitted, transcribed, or translated

into any language in any form by any means without the written permission of A&D

Company, Limited.

The contents of this manual and the specifications of the instrument covered by this

manual are subject to change for improvement without notice.

Windows and Excel are registered trademarks of Microsoft Corporation.

CONTENTS

1. INTRODUCTION...............................................................................................................................4

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

1-2 Compliance .......................................................................................................................................... 5

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

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

2-2 Installing the Balance ........................................................................................................................... 8

3. PRECAUTIONS ..............................................................................................................................10

3-1 Before Use ......................................................................................................................................... 10

3-2 When Building into a System ..............................................................................................................11

3-3 During Use ......................................................................................................................................... 13

3-4 After Use............................................................................................................................................. 13

3-5 Power Supply ..................................................................................................................................... 13

4. DISPLAY SYMBOLS AND KEY OPERATION................................................................................14

5. WEIGHING UNITS..........................................................................................................................15

5-1 Units ................................................................................................................................................... 15

5-2 Changing the Unit............................................................................................................................... 17

6. WEIGHING......................................................................................................................................18

6-1 Basic Operation (Gram Mode) ........................................................................................................... 18

6-2 Smart Range Function ....................................................................................................................... 19

7. CHANGING THE WEIGHING SPEED ............................................................................................20

8. CALIBRATION................................................................................................................................21

8-1 Calibration .......................................................................................................................................... 22

8-2 Calibration Test................................................................................................................................... 24

9. FUNCTION SWITCH AND INITIALIZATION ..................................................................................26

9-1 Permit or Inhibit .................................................................................................................................. 26

9-2 Initializing the Balance........................................................................................................................ 27

10. FUNCTION TABLE ...................................................................................................................... 28

10-1 Structure and Sequence of the Function Table ................................................................................ 28

10-2 Display and Keys.............................................................................................................................. 28

10-3 Details of the Function Table ............................................................................................................ 29

10-4 Description of the Class “Environment, Display” .............................................................................. 33

10-5 Description of the Item “Data output mode” .....................................................................................35

10-6 Description of the Item “Data format” ............................................................................................... 36

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

10-8 Data Format Examples.....................................................................................................................39

10-9 Clock and Calendar Function ........................................................................................................... 40

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

....................................................................... 38

11. ID NUMBER AND GLP REPORT................................................................................................. 46

11-1 Setting the ID Number ......................................................................................................................46

11-2 GLP Report ....................................................................................................................................... 47

12. COUNTING MODE (PC) .............................................................................................................. 50

13. PERCENT MODE (Pct)................................................................................................................ 52

14. DATA MEMORY ........................................................................................................................... 53

14-1 Notes on Using Data Memory ..........................................................................................................53

14-2 Memory for Weighing Data...............................................................................................................54

14-3 Memory for Calibration and Calibration Test Data............................................................................57

14-4 Memory for Unit Mass in the Counting Mode ................................................................................... 58

14-5 Memory for Upper/lower limit values ................................................................................................ 59

15. PROGRAMMABLE-UNIT (AD-4212A only)................................................................................ 62

16. I/O UNIT SPECIFICATIONS (Standard interface)...................................................................... 63

16-1 RS-232C/Comparator Contact Output/External Contact Input..........................................................63

17. CONNECTION TO PERIPHERAL EQUIPMENT ......................................................................... 65

17-1 Connection to the AD-8121B Printer ................................................................................................ 65

17-2 Connection to a Computer................................................................................................................ 66

17-3 Using Windows Communication Tools (WinCT) ............................................................................... 66

18. COMMANDS.................................................................................................................................68

18-1 Command List .................................................................................................................................. 68

18-2 Acknowledge Code and Error Codes............................................................................................... 69

18-3 Control Using CTS and RTS ............................................................................................................ 70

18-4 Settings Related to RS-232C ........................................................................................................... 70

19. BCD OUTPUT (OP-01) .................................................................................................................71

19-1 Connector Pin Nos. and Specifications............................................................................................ 71

20. EXTENDED FUNCTIONS (AD-4212A only) ................................................................................74

20-1 Description of "Averaging range" and "Averaging time"................................................................... 76

21. MAINTENANCE............................................................................................................................77

22. TROUBLESHOOTING..................................................................................................................77

22-1 Checking the Balance Performance and Environment .................................................................... 77

22-2 Error Codes ...................................................................................................................................... 79

22-3 Asking For Repair ............................................................................................................................. 81

23. SPECIFICATIONS ........................................................................................................................82

24. DESIGNING A SPECIAL WEIGHING PAN...................................................................................84

25. INSTALLING THE DISPLAY UNIT ...............................................................................................90

26. ATTACHING THE MOUNTING FIXTURES...................................................................................91

27. EXTERNAL DIMENSIONS ...........................................................................................................92

28. OPTIONS ......................................................................................................................................94

29. TERMS/INDEX..............................................................................................................................96

1. INTRODUCTION

This manual describes how the AD-4212A/B series balance works and how to get the most out of it in terms of performance.

Read this manual thoroughly before using the balance and keep it at hand for future reference.

1-1 Features

 Separate Weighing Unit and Display (standard connection cable length 2 m), suitable for

building into a production line system. The weighing unit is compact, with a width of 80 mm.

 High Resolution and High Response Speed

Model Weighing capacity Minimum weighing value Stabilization time *1 AD-4212A-100 110 g 0.1 mg 1.1 to 1.3 seconds AD-4212A-200 210 g 0.8 to 1.0 second AD-4212A-600 610 g AD-4212A-1000 1100 g

AD-4212B-101 110 g / 31 g 0.1 mg / 0.01 mg 2.5 / 4.0 seconds *2 AD-4212B-102 110 g 0.01 mg 4.0 seconds *3 AD-4212B-201 210 g AD-4212B-301 310 g

*1 With FAST selected under good environment *2 The AD-4212B-101 is equipped with a smart range function. When the minimum

weighing value is set to 0.01 mg and the weight value exceeds 31 g, the minimum weighing value will switch to 0.1 mg automatically. Even under this circumstance, pressing the RE-ZERO key tares the value and weighing with the minimum weighing value of 0.01 mg is available up to 31 g.

*3 2.5 seconds when the minimum weighing value is 0.1 mg.

1 mg

0.1 mg 2.5 seconds

0.9 to 1.1 seconds

 Standard RS-232C Serial Interface / Standard Comparator Contact Output (*4 )

Using the RS-232C serial interface, weighing data can be output to external devices and the

balance can be controlled by external devices.

Using comparator contact output, the weight value is compared to the preset upper/lower limit

values and the results are displayed as HI, OK or LO. The buzzer is also available in response

to the results.

The RE-ZERO operation is possible using a signal from an external contact input, which allows

easy system construction. (This function is only available when the external contact input is

installed on the standard interface or OP-01.)

*4 AD-4212A series balance: 3-level output.

AD-4212B series balance: 3-level or 5-level output, switched by the function table setting.

 Data Memory Function, storing weighing data, calibration data, unit mass in the counting mode

or upper/lower limit values. Once stored, selection of the upper or lower limit value is easy.

 Dust-protected and Protected Against Splashing Water (Complying with IP54)

 Clock and Calendar Function, adding the time and date to the output data.

 GLP/GMP Output, using the RS-232C serial interface.

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

 Windows Communication Tools (WinCT), allows easy communication with a Windows-based

personal computer.

Windows is a registered trademark of Microsoft Corporation.

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

 Auto display-ON Function, that displays the weighing mode without any key operation when the

AC adapter is plugged in, is available.

 Stainless Steel Casing with high chemical resistance for the AD-4212B weighing unit

 Stainless Steel Breeze Break, provided for the AD-4212B series balance and the

AD-4212A-100, for more accurate weighing. For the other models, it is available as an option

(OP-19).

 BCD Output (OP-01) and Ethernet Interface (OP-08) are available as options

1-2 Compliance

Compliance with FCC Rules

Please note that this equipment generates, uses and can radiate radio frequency energy. This equipment has been tested and has been found to comply with the limits of a Class A computing device pursuant to Subpart J of Part 15 of FCC rules. These rules are designed to provide reasonable protection against interference when the equipment is operated in a commercial environment. If this unit is operated in a residential area, it may cause some interference and under these circumstances the user would be required to take, at his own expense, whatever measures are necessary to eliminate the interference.

(FCC = Federal Communications Commission in the U.S.A.)

Compliance with EMC Directives

This device features radio interference suppression in compliance with valid EC

Regulation 89/336/EEC.

2. UNPACKING THE BALANCE

2-1 Unpacking

 The balance is a precision instrument. Unpack the balance carefully. Keep the packing material

to be used for transporting the balance in the future.

 See the illustrations to confirm that everything is contained.

AD-4212B-101/102

Weighing unit

AD-4212A-100/200 AD-4212B-201/301

Weighing pan

Pan support

Breeze ring

Dust guard

Stainless steel breeze break

Provided for the AD-4212B series balance and the AD-4212-100. For the other models, available as an option (OP-19).

AD-4212A-600/1000

Weighing pan

Dust guard

Pan support and pan support plate

(Can be separated)

Connection cable (2 m)

Bubble spirit level

Rear of the display unit

I/O unit RS-232C/comparator

Leveling foot

Grounding terminal

External input terminal

Weighing unit connection jack

Arrow mark face up

AC adapter jack

AC adapter plug

Grounding terminal

From weighing unit

Reference sheet

Keys

Angle adjustment

Stand

knob

Display unit

(Example: AD-4212B-102)

Windows communication tools (WinCT)

Mounting fixture (2 pcs.)

D-Sub 25-pin connector To mate with the I/O unit.

Accessories

Screw and washers to attach the mounting fixture (3 sets)

Calibration weight OIML, Class E2 or equivalent

Model

AD-4212A-100 AD-4212B-101/102

AD-4212A-200 AD-4212B-201/301

AD-4212A-600/1000

AC adapter

AC adapter ID label

Weight

50 g

100 g

200 g

Notes

About how to attach the mounting fixtures, refer to “26. ATTACHING THE

MOUNTING FIXTURES” on page 91.

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

receptacle type.

2-2 Installing the Balance

Caution

 The weighing unit and the display unit were adjusted as a unit. Therefore, make sure that

the weighing unit and the display unit have the same serial number. The serial number is printed on the rear of the weighing unit and the display unit. The connection cable also carries the serial number. If the serial numbers of both units are different, the balance may not function properly. When a repair is necessary, submit both the weighing unit and the display unit for repair.

 There is no compatibility between The AD-4212A and the AD-4212B or AD-4212, for both the

weighing unit and the display unit.

Install the balance as follows:

1. Refer to “3. PRECAUTIONS” for installing the balance.

2. Refer to "2-1 Unpacking" on the previous page to attach the dust guard, the breeze ring (AD-4212B-101/102 only), the pan support and the weighing pan on the weighing unit.

The stainless steel breeze break is provided for the AD-4121B series balance and the

AD-4212A-100 as a standard accessory, and for the other models as an option. Use it as necessary when performing calibration or checking accuracy.

How to install the breeze break

• AD-4212A-100/200 and the AD-4212B series balance

Place the breeze break on the weighing pan so that it fits over the dust guard.

• AD-4212A-600/1000

Follow the procedure below to install the breeze break.

1 Remove the weighing pan and the pan support. 2 Place the breeze break on the weighing pan so

that it fits over the dust guard.

3 Replace the pan support. 4 Replace the weighing pan.

Weighing

Pan support

Dust guard

pan

Breeze break

3. Connect the weighing unit and the display unit, firmly inserting one end of the connection cable into the jack located on the rear of the weighing unit and the other end into the jack located on the rear of the display unit.

If the extension cable (OP-07: 3 m) is used, connect it between the connection cable and the

display unit.

Rear of the weighing unit

Serial number

Make sure the weighing unit, display unit and connection cable have the same serial number.

Arrow mark face up

Rear of the display unit

Connection cable

How to disconnect the cable from the weighing unit

Slide the connector sleeve in the direction of the arrow to unlock and gently pull the connector out.

Slide the connector sleeve in the direction of the arrow

4. Adjust the leveling feet to level the weighing unit. Confirm it using the bubble spirit level.

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

6. Plug the AC adapter plug into the AC adapter jack located on the rear of the display unit and plug the AC adapter into the electrical outlet. Warm up the balance for the appropriate duration with nothing on the weighing pan.

 AD-4212A series balance: 30 minutes or more

 AD-4212B series balance: one hour or more

Unlocked

7. Set the pan unit and I/O unit to adapt to the peripheral system. Set the following for the I/O unit.

 RS-232C (Refer to page 63)

 Comparator contact output (Refer to page 64)

 RE-ZERO operation using external contact input (Refer to page 64)

 Auto-display ON function (Refer to pages 29 and 34)

Set the weighing speed to adapt to the ambient conditions.

8. After the balance has been installed, calibrate the balance using the calibration weight provided with the balance. For details, refer to “8. CALIBRATION”.

9. A special weighing pan designed appropriately for the sample to be weighed or the peripheral system can be attached to the balance. About how to design a weighing pan, refer to “24 DESIGNING A SPECIAL WEIGHING PAN”.

3. PRECAUTIONS

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

following:

3-1 Before Use

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

The best operating temperature is about 20°C / 68°F at about 50% relative humidity.

 Install the balance where it is not exposed to direct sunlight and it is not affected by heaters

or air conditioners.

 Install the balance where it is free of dust.

 Install the balance away from equipment which produces magnetic fields.

 Install the balance in a stable place avoiding vibration and shock. Corners of rooms on the

first floor are best, as they are less prone to vibration.

 The AD-4212A/B series balance responds even to very subtle

air flow. To avoid the influence of ambient air flow or air flow

caused by balance operation, make sure to use the dust

guard and the breeze ring (AD-4212B-101/102 only).

 Level the weighing unit by adjusting the leveling feet

and confirm it using the bubble spirit level.

 If the leveling adjustment is difficult to perform due to

the installation conditions, perform calibration using a

calibration weight or controlled actual sample before

weighing.

 Ensure a stable power source when using the AC

adapter

 Warm up the balance for the appropriate duration. Plug

in the AC adapter as usual.

• AD-4212A series balance: 30 minutes or more

• AD-4212B series balance: one hour or more

 Calibrate the balance before use or after having moved

it to another location.

In addition, calibrate it periodically to maintain the accuracy.

Caution

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

3-2 When Building into a System

The AD-4212A/B is a precision balance. When it is built into a system and used, errors such as unstable weight values may occur due to static electricity, vibration and materials used for the devices near the balance. When using the balance that is built into a system, take the following precautions.

 Errors due to a static charge

When the ambient humidity is less than 45% RH, insulators such as plastic or glass are prone to

static electricity. When charged material comes close to the balance, a pulling force is generated

between the charged material and the weighing pan. This causes an unstable weight value.

To protect the balance against a discharge generated by charged material when it comes

close to the balance, make sure to earth ground the weighing unit and the display unit.

(Static electricity generated by static induction will not be canceled by earth-grounding.)

Charged plastic breeze break

The pulling force makes the weight value unstable

Measures to take (Plastic is used in the measures below. They can be applied to glass, too.)

A pulling force generated between the charged sample and the balance causes an unstable weight value.

When the sample or devices are plastic

 Use a static eliminator that generates no air blow such as the

Charged material

AD-1683, DC static eliminator, to remove static electricity.

 Place the sample in a container that is made of a conductive

material such as metal and that can be sealed and weigh it.

Metal case

When the sample is powdery

 When the balance is used in combination with a feeder for

batch weighing of powdery samples, samples may be charged by rubbing sample particles against each other.

Use a static eliminator and perform weighing while removing

static electricity.

Grounding

When the sample container is made of material that is prone to static electricity such as plastic

 Cover the outside of the container with a metal such as aluminum foil.  Apply an anti-static agent onto the container.

When making a breeze break using plastic

 Apply an anti-static agent onto the breeze break.  Use a conductive acrylic fiber.

When plastic exists in the balance installation site

 Cover the plastic with a grounded metal.  Apply an anti-static agent onto plastic.

When an operator is static charged

If an operator’s clothes are static charged, especially in winter, it may be a cause for

unstable weight values.

 Wear an anti-static wrist strap.

 Errors due to air flow

Where the influence of ambient air flow is great

such as: close to an air conditioner, door or

passage way. Even very subtle air flow that is

hard to be detected may influence the weighing

operation.

 Avoid those areas as a weighing site.

Influence of the air flow makes the weight value unstable

 If weighing is to be performed in such an

area, use a breeze break or take other appropriate measures.

Where the influence of heat or drafts is great

 Eliminate temperature differences between

a sample and the environment. When a sample is warmer (cooler) than the ambient temperature, the sample will be lighter (heavier) than the true weight. This

Draft

40 C

20 C

error is due to a rising (falling) draft around the sample.

 Do not touch the sample directly with your

hand. Use tweezers or other tools.

If you touch the sample, the same type

error described above will occur.

 Do not perform weighing where it is exposed to direct sunlight. Weighing errors may

occur due to sudden temperature change or drafts.

Where the influence of vibration is great, such as:

(1) Soft ground (2) Second or higher floor (3) Near center of a floor far from pillars (4) Seismic

isolated structures (5) Near tall buildings.

In the areas listed above, the scale may yield unstable weight values on windy days or after an

earthquake. Especially in case of (4) and (5), weight values may be unstable during and for a

long period of time after strong winds or an earthquake.

 Errors due to other causes

Change in temperature or humidity

A sudden change in temperature or humidity can generate a draft and cause the balance to

absorb or exude moisture, which leads to weighing errors.

 Avoid sudden change in temperature or humidity.  Use an air conditioner to control the temperature or humidity.

Magnetic material

The balance uses a strong magnet as part of the balance assembly, so use much care when

weighing magnetic materials.

 Place a non-magnetic object such as aluminum or brass between the sample and the

balance, also keep an appropriate distance between them while weighing.

3-3 During Use

 To minimize the affect by electrical noises, earth ground

the weighing unit and the display unit.

 Make each weighing gently and quickly to avoid errors

due to changes in the environmental conditions.

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

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

 Do not use a sharp instrument such as a pencil to press

the keys. Use your finger only.

 Press the RE-ZERO key before each weighing to

prevent possible errors. In addition, a RE-ZERO signal can be sent using external contact input/RS-232C command.

 Take into consideration the affect of air buoyancy on a sample when more accuracy is required.

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

3-4 After Use

 Avoid mechanical shock to the balance.

 Calibrate the balance, using a calibration weight, periodically.

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

repair.

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

moistened with warm water and a mild detergent.

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

spills and excessive dust.

3-5 Power Supply

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

is on (refer to “4 DISPLAY SYMBOLS AND KEY OPERATION”). This is a normal state and does not harm the balance. For accurate weighing, plug in the AC adapter and warm up the balance for the appropriate duration before use.

4. DISPLAY SYMBOLS AND KEY OPERATION

Key operation

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

 “Press and release the key immediately” or “Press the key”

= normal key operation during measurement

 “Press and hold the key”

Display symbols

・

Displays memory data information

・

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

Processing indicator

Stabilization indicator

Data number of the

(Capacity indicator)

Standby indicator

data currently displayed

Processing indicator

Blinking indicators

Weighing speed indicators

Comparator indicators

Interval memory standby indicator

(AD-4212B)

Units

Interval memory standby indicator

(AD-4212A)

Weighing data or stored data

Interval memory active indicator

(AD-4212B)

Interval memory active indicator

(AD-4212A)

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

Key When pressed When pressed and held

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

This key is available anytime. Pressing the key during operation will interrupt the operation and turn the display OFF.

In the weighing mode, switches the minimum weighing value. *

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

Displays the upper/lower limit values currently set.

Switches between the upper and lower limit values when they are stored in memory.

No function. Enters the calibration mode.

Stores the weighing data in memory or outputs to a printer or personal computer depending on the function table settings. (Factory setting = output) Not available when OP-01 is installed.

Sets the display to zero.

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

Performs weighing speed adjustment.

No function at the factory setting

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

* The factory setting of the minimum weighing value for the AD-4212B-101/102 is 0.1 mg.

5. WEIGHING UNITS

5-1 Units

With the AD-4212A/B series balance, the following weighing units and weighing modes are available:

Counting mode

Pct

OZt

Percent mode

A unit or mode can be selected and stored in the function table as described in “5-2 Changing the Unit”. If a weighing mode (or unit of weight) has been turned off, that mode or unit will be missing in the sequence. Tael has four varieties, one of which can be selected and installed at the factory.

For details about the units and modes, see the table below:

dwt

Programmable-unit (AD-4212A only)

Name (unit, mode) Display Function table

Conversion factor

(Storing mode)

Gram

Milligram

Counting mode

Percent mode

Ounce (Avoir)

Troy Ounce

Metric Carat

Momme

Pennyweight

Grain (UK)

1 g

0.001 g

28.349523125 g

31.1034768 g

0.2 g

3.75 g

1.55517384 g

0.06479891 g

Tael (HK general, Singapore) 37.7994 g

Tael (HK jewelry) 37.429 g

Tael (Taiwan) 37.5 g

Tael (China)

31.25 g

Tola (India)

Messghal

Programmable-unit (Multi-unit)

(AD-4212A only)

11.6638038 g

4.6875 g

The table below indicates the weighing capacity and the minimum display for each unit, depending on

the balance model.

AD-4212A-100 AD-4212A-200 AD-4212A-600 AD-4212A-1000

Unit Capacity Minimum

display

Capacity Minimum

display

Capacity

Minimum

display

Capacity

Minimum

display

Gram

Milligram

Ounce (Avoir)

Troy Ounce

Metric Carat

Momme

Pennyweight

Grain (UK) Tael

(HK

general, Singapore)

Tael (HK jewelry)

Tael (Taiwan)

Tael (China)

Tola (India)

Messghal

110 0.0001 210 0.001 610 0.001 1100 0.001

110000 0.1 210000 1 610000 1 1100000 1

3.88 0.000005 7.40 0.00005 21.51 0.00005 38.80 0.00005

3.53 0.000005 6.75 0.00005 19.61 0.00005 35.36 0.00005

550 0.0005 1050 0.005 3050 0.005 5500 0.005

29.3 0.00005 56.0 0.0005 162.6 0.0005 293.3 0.0005

70.7 0.0001 135.0 0.001 392.2 0.001 707.3 0.001

1697 0.002 3240 0.02 9413 0.02 16975 0.02

2.91 0.000005 5.55 0.00005 16.13 0.00005 29.10 0.00005

2.93 0.000005 5.61 0.00005 16.29 0.00005 29.38 0.00005

2.93 0.000005 5.60 0.00005 16.26 0.00005 29.33 0.00005

3.52 0.000005 6.72 0.00005 19.52 0.00005 35.20 0.00005

9.43 0.00001 18.00 0.0001 52.29 0.0001 94.30 0.0001

23.4 0.00005 44.8 0.0005 130.1 0.0005 234.6 0.0005

AD-4212B-101

Unit

Gram 110 0.0001 31 0.00001

Milligram 110000 0.1 31000 0.01

Ounce (Avoir) 3.88 0.00001 1.09 0.000001

Troy Ounce 3.53 0.00001 0.99 0.000001

Metric Carat 550 0.001 155 0.0001

Momme 29.3 0.0001 8.2 0.00001

Pennyweight 70.7 0.0001 19.9 0.00001

Grain (UK) 1697 0.002 478 0.0002

Tael (HK general, Singapore) 2.91 0.00001 0.82 0.000001

Tael (HK jewelry) 2.93 0.00001 0.82 0.000001

Tael (Taiwan) 2.93 0.00001 0.82 0.000001

Tael (China) 3.52 0.00001 0.99 0.000001

Tola (India) 9.43 0.00001 2.65 0.000001

Standard range Precision range

Capacity Minimum

display

Messghal 23.4 0.0001 6.6 0.00001

AD-4212B-102 AD-4212B-201 AD-4212B-301

Unit

Gram 110 0.00001 210 0.0001 310 0.0001

Milligram 110000 0.01 210000 0.1 310000 0.1

Ounce (Avoir) 3.88 0.000001 7.40 0.00001 10.93 0.00001

Troy Ounce 3.53 0.000001 6.75 0.00001 9.96 0.00001

Metric Carat 550 0.0001 1050 0.001 1550 0.001

Momme 29.3 0.00001 56.0 0.0001 82.6 0.0001

Pennyweight 70.7 0.00001 135.0 0.0001 199.3 0.0001

Grain (UK) 1697 0.0002 3240 0.002 4784 0.002

Tael (HK general, Singapore)

Tael (HK jewelry) 2.93 0.000001 5.61 0.00001 8.28 0.00001

Tael (Taiwan) 2.93 0.000001 5.60 0.00001 8.26 0.00001

Tael (China) 3.52 0.000001 6.72 0.00001 9.92 0.00001

Tola (India) 9.43 0.000001 18.00 0.00001 26.57 0.00001

Capacity Minimum

display

2.91 0.000001 5.55 0.00001 8.20 0.00001

Capacity Minimum

display

Capacity Minimum

display

Messghal 23.4 0.00001 44.8 0.0001 66.1 0.0001

5-2 Changing the Unit

A unit or mode can be selected and stored in the function table.

Select a unit or mode as follows:

1 Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

2 Press the SAMPLE key several times to display

Unit .

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

4 Press the SAMPLE key to select a unit or mode to be

used for weighing.

5 Press the RE-ZERO key to specify the unit or mode

selected in step 4.

(The stabilization indicator ° illuminates.)

Displays the units sequentially.

Select

Specify

6 Press the PRINT key to store the unit or mode. The

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

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

balance returns to the weighing mode with the selected unit or mode.

Store

6. WEIGHING

6-1 Basic Operation (Gram Mode)

1 Plug in the AC adapter.

2 Press the ON:OFF key to display the weighing mode. (The

decimal point position depends on the balance model.)

Notes

The auto display-ON function is available to display the

weighing mode without the key operation when the AC adapter is plugged in. (Function table: ba5fnc p-on)

The function not to tare at start can be selected. (Function

table: ba5fnc p-tr) For details on the function table settings, refer to "10. FUNCTION TABLE".

The factory setting of the minimum weighing value for the

AD-4212B-101/102 is 0.1 mg. To display 0.01 mg, press the SAMPLE key. Then, warm up the balance for the appropriate duration.

(Software version display)

(Display OFF)

(All segments display)

(Weighing mode)

3 Place a container on the weighing pan, if necessary. Press the RE-ZERO key to cancel the weight (tare). The

balance displays 0.0000 g. (The decimal point position depends on the balance model.)

4 Place a sample on the pan or in the container. Wait for the

stabilization indicator to be displayed and read the value.

5 Remove the sample and container from the pan.

Notes

To use another unit, refer to “5-2 Changing the Unit”.

Press the SAMPLE key to switch the minimum weighing

value.

The function to turn on or off the minimum weighing value

automatically when weighing is started can be selected. (Function table: ba5fnc rng ) For details, refer to "10. FUNCTION TABLE".

The weighing data can be stored in memory. For details,

refer to “14. DATA MEMORY”.

Container

Weighing pan

Sample

Remove the sample

6-2 Smart Range Function

The AD-4212B-101 is equipped with two ranges. The precision range has a higher resolution. The

standard range has normal resolution.

The range switches automatically, depending on the value displayed. Pressing the RE-ZERO key

allows weighing in the precision range, regardless of the tare value.

The minimum weighing value can be fixed to 0.1 mg or 1 mg by pressing the SAMPLE key.

1 Press the RE-ZERO key. The balance will start weighing, using the

precision range.

2 Place a container on the weighing pan. The weight value displayed exceeds the

precision range value and the balance will switch to the standard range.

3 Press the RE-ZERO key. The balance will switch to the precision range.

4 Place a sample in the container. The weight value displayed is within the

precision range value and the balance will perform a weighing, using the precision range.

Weighing pan

Container

Sample

Precision range display

Standard range display

Precision range display

Precision range/standard range value

Precision range 0 g to 31 g 0.01 mg 0.1 mg 1 mg

Standard range 31 g to 110 g 0.1 mg 1 mg

* The factory setting of the minimum weighing value is 0.1 mg (0.0001 g).

Weighing range Available minimum weighing value

7. CHANGING THE WEIGHING SPEED

The weighing speed can be selected from the following three rates to minimize the influence on weighing that is caused by drafts and/or vibration at the place where the balance is installed.

Indicator Parameter Speed Stability FAST Cond 0 MID. Cond 1 SLOW Cond 2

Fast Sensitive value

Slow Stable value

Operation

1 Press and hold the MODE key until RESPONSE is

displayed.

And then, press the MODE key again quickly.

2 Press the MODE key to select a weighing speed. Either

FAST, MID. or SLOW can be selected.

Weighing speed indicators

Press and hold the key

Release the key and press again

3 After a few seconds of inactivity the balance displays

eend . Then, it returns to the weighing mode and

displays the updated weighing speed indicator. The weighing speed indicator remains displayed for a while.

Note

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

Each pressing switches the indicators

After a while

8. CALIBRATION

Calibration

Calibration using the calibration weight

Calibration test

To check the weighing accuracy, using the calibration weight, and output the result. (Calibration test does not perform calibration.)

Caution

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

• the balance is installed for the first time.

• the balance has been moved.

• the ambient conditions have changed.

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

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

output ( dout )”. For details, refer to “10. FUNCTION TABLE”. Time and date are added to the GLP report. If the time or date is not correct, adjust them. For details, refer to “10-9 Clock and Calendar Function”.

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

“1” or “2”,

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

memory ( data )” to “3”. For details, refer to “14. DATA MEMORY”.

Caution on using an external calibration weight

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

weight as listed below. A calibration weight (conforming to OIML, Class E2 or equivalent) is provided with the balance as a standard accessory.

Model Usable calibration weight Adjustable range

AD-4212A-100 20 g, AD-4212A-200 20 g, 50 g, AD-4212A-600 20 g, 50 g, 100 g,

AD-4212A-1000 20 g, 50 g, 100 g,

AD-4212B-101 AD-4212B-102 AD-4212B-201 10 g, 20 g, 50 g, AD-4212B-301 10 g, 20 g, 50 g,

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

50 g

, 100 g -15.0 mg to +15.9 mg 50 g

100 g

, 200 g 100 g

200 g

, 300 g, 400 g

500 g, 600 g

200 g

, 300 g, 400 g

500 g, 600 g, 700 g, 800 g, 900 g, 1000 g

50 g

10 g, 20 g,

, 100 g -15.00 mg to +15.99 mg 50 g

100 g

, 200 g

100 g

, 200 g, 300 g

-15 mg to +15 mg

-15.0 mg to +15.9 mg 100 g

Calibration

weight provided

200 g

Display

 This indicator means “the balance is measuring calibration

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

8-1 Calibration

This function calibrates the balance using the calibration weight. (Display example: AD-4212B-102)

Operation

1 Plug in the AC adapter and warm up the balance with nothing on the pan.

• AD-4212A series balance: 30 minutes or more

• AD-4212B series balance: one hour or more

For the models with a minimum display of 0.1 mg or 0.01 mg, use the stainless

steel breeze break provided with the balance for more accurate weighing.

2 Press and hold the CAL key until Calout is

displayed, then release the key.

3 The balance displays Cal 0 .

 If you want to change the calibration weight (a list

of usable weights is shown on page 21), press the SAMPLE key and proceed to step 4.

 If you use the calibration weight value stored in

the balance, proceed to step 5.

Press

Select a weight

Press and hold the key

Release the key

 If you want to cancel calibration, press the CAL

key. The balance will return to the weighing mode.

4 Specify the calibration weight value as follows:

SAMPLE key To switch the operation to:

calibration weight selection mode (All of the segments blinking) or value adjustment mode ( Digits to be changed blinking).

With the AD-4212B-101/102,

the value can be adjusted down to five decimal places.

RE-ZERO key To select the calibration

weight or adjust the value.

PRINT key To store the new weight value.

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

CAL key To cancel the operation and

return to Cal 0 .

To next page

e.g. Calibration weight value

20.01234 g

Note

For details about the usable calibration weights and value adjustable range, refer to the previous page.

5 Confirm that there is nothing on the pan and press

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

The balance displays the calibration weight value.

6 Place a calibration weight, of the weight value

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

7 The balance displays end . Remove the weight

from the pan.

From previous page

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

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

9 The balance will automatically return to the weighing

mode.

10 Place the calibration weight on the pan and confirm

that calibration was performed correctly. If not, check the ambient conditions such as drafts or vibration, and repeat steps 2 through 10.

Calibration weight

GLP output

8-2 Calibration Test

This function tests the balance weighing accuracy using the calibration weight and outputs the result. This is available only when the “GLP output (info)” parameter is set to “1” or “2”. (Calibration test does not perform calibration. Display example: AD-4212B-102)

Operation

1 Plug in the AC adapter and warm up the balance with nothing on the pan.

• AD-4212A series balance: 30 minutes or more

• AD-4212B series balance: one hour or more

For the models with a minimum display of 0.1 mg or 0.01

mg, use the stainless steel breeze break provided with the balance for more accurate weighing.

2 Press and hold the CAL key until CCout is

displayed, then release the key.

3 The balance displays CC 0 .

 If you want to change the calibration weight (a list

of usable weights is shown on page 21), press the SAMPLE key and proceed to step 4.

 If you use the calibration weight value stored in

the balance, proceed to step 5.

 If you want to cancel calibration test, press the

CAL key. The balance will return to the weighing mode.

Press

Select a weight

Press and hold the key

Release the key

4 Specify the calibration weight value as follows:

SAMPLE key To switch the operation to:

calibration weight selection mode (All of the segments blinking) or value adjustment mode ( Digits to be changed blinking).

With the AD-4212B-101/102,

the value can be adjusted down to five decimal places.

RE-ZERO key To select the calibration

weight or adjust the value.

PRINT key To store the new weight value.

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

CAL key To cancel the operation and

return to CC 0 .

To next page

e.g. Calibration weight value

Note

For details about the usable calibration weights and value adjustable range, refer to page 21.

20.01234 g

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

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

The balance displays the calibration weight value.

6 Place a calibration weight, of the weight value displayed,

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

7 The balance displays end . Remove the weight from the

pan.

8 The balance displays glp and outputs “Calibration Test

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

9 The balance will automatically return to the weighing

mode.

From previous page

Calibration weight

GLP output

9. FUNCTION SWITCH AND INITIALIZATION

9-1 Permit or Inhibit

The balance stores parameters that must not be changed unintentionally (e.g. Calibration data for accurate weighing, data for adapting to the operating environment, control data for the RS-232C interface). There are two switches for protecting the parameters. The switches can select either “permit” or “inhibit”. The “inhibit” protects parameters against unintentional operations. There is an additional switch for the extended functions of the AD-4212A.

Switches

Note: Only available for the AD-4212A series balance.

For details, refer to “20. EXTENDED FUNCTIONS

Operation

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

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

balance displays p5 .

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

4 Set the switches using the following keys.

SAMPLE key To select the switch to change the parameter.

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

0: To inhibit changes. 1: To permit changes

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

CAL key To cancel the operation and return to the weighing mode.

9-2 Initializing the Balance

This function returns the following parameters to factory settings.

 Calibration data

 Function table

 Upper/lower limit values

 The sample unit mass value (counting mode), 100% reference mass value (percent mode)

 The data that is stored in the balance using the data memory function

 Calibration weight value

 Function switch settings

Note

Be sure to calibrate the balance after initialization.

Operation

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

2 While pressing and holding the PRINT key and the

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

With these keys held down

Press the key

3 Press the SAMPLE key to display Clr .

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

5 Press the RE-ZERO key.

6 Press the PRINT key to initialize the balance.

The balance will automatically return to the weighing

mode.

10. FUNCTION TABLE

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

10-1 Structure and Sequence of the Function Table

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

Example

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

Start, From weighing mode

Press and hold

Class

End, To weighing mode

Press several times

10-2 Display and Keys

Item

Press several times

Press twice

Press five times

Item

"Interval time"

Item

"Data memory"

Parameter

"Stores weighing

data"

Parameter

"1 minute"

Display/Key Description

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

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

Selects the class or item in the function table mode.

Changes the parameter.

When a class is displayed, moves to an item in the class.

When an item is displayed, stores the new parameter and displays the next class.

When an item is displayed, cancels the new parameter and displays the next

class. When a class is displayed, exits the function table mode and returns to the weighing mode.

10-3 Details of the Function Table

Class Item and Parameter Description

2 0

Cond

Condition

5t-b

Stability band width

Hold *1

Hold function

trc

Zero tracking

2 3 0

ba5fnc

Environment Display

5pd

Display refresh rate

pnt

Decimal point

p-on

Auto display-ON

poff *1

Auto display-OFF

g5i

Capacity indicator

rng

Minimum weighing value display at start

2 0

Note: “Digit” is a unit of minimum weighing value

Cl adj

Clock

p-tr

Tare at start

Refer to "10-9 Clock and Calendar Function".

*1 Only the AD-4212A series balance displays this item.

Fast weighing speed, sensitive value

MID. Slow weighing speed, stable value

Stable range is ±1 digit

Stable range is ±3 digits

OFF

Normal

Strong

Very strong

5 times/second 10 times/second

1 0

Point (.) Comma (,)

OFF

OFF ON (10 minutes)

OFF

Displays the minimum weighing

value Does not display the minimum

weighing value

Retains the previous condition

Does not tare (Displays the previous value)

Tares (Displays zero)

Factory setting

FAST

SLOW

The stabilization indicator illuminates when the display fluctuation is within the range.

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

Keeps zero display by tracking zero drift.

Period to refresh the display

Decimal point format

Turns on the weighing mode display when the AC adapter is plugged in.

Turns off the display after 10 minutes of inactivity.

Capacity indicator Zero: 0%, Maximum capacity: 100%

Factory setting

1: AD-4212B-101/102 0: Other models

The time and date are added to the output data.

Class Item and Parameter Description

Cpout

Comparator output

Cp fnc

Comparator

Cp-t

Comparator output setting

Comparator mode

Cp-r *2

Comparison results

LL buzzer

bep_

LO buzze

bep-

OK buzze

HI buzzer

bep

HH buzzer

2 3 4

1 ON

3-level comparator contact

output 5-level comparator contact output No comparison

Comparison, excluding “near zero” when stable or overloaded

Comparison, including “near zero” when stable or overloaded Continuous comparison, excluding “near zero” Continuous comparison, including “near zero” Not added

Added

0 OFF bep

Only the AD-4212B series balance displays this class and item.

Use in A&D standard format.

Displayed only when 5-level comparator output (*3) is selected.

0 OFF

Displayed only when 5-level comparator output (

*3) is selected.

Cp HH

Secondary upper limit

Cp Hi

Upper limit

Cp lo

Lower limit

Refer to "10-10 Comparator Function”.

Displays 5-level comparator output ( selected.

Cp HH,, Cp ll only when

Cp ll

Secondary lower limit

dout

Data output

Not displayed

when BCD

output (OP-01)

is installed.

prt

Data output mode

Key mode (when stable)

Auto print mode A (Reference = zero)

Auto print mode B (Reference = last stable value)

Stream mode / Interval memory mode

4 Key mode B (instantly)

5 Key mode C (when stable)

Accepts the PRINT key or external contact input to output (or store) data only when the display is stable. Outputs (or stores) data when the display is stable and conditions of

ap-p,

ap-b and the reference value

are met. With continuously; with interval memory. Accepts the PRINT key or external contact input to output (or store) data, regardless of the display condition. Accepts the PRINT key or external contact input to output (or store) data, instantly when stable or after the display is stabilized.

data 0, outputs data

data 2, uses

Factory setting

*2 This item is not displayed for the AD-4212B series balance or when BCD output (OP-01) is

installed.

*3 AD-4212A series balance: when OP-04 is installed AD-4212B series balance: when “Cp-t” is set to “1”

*3) is

Class Item and Parameter Description

dout

Data output

Not displayed

when BCD

output (OP-01)

is installed.

ap-p

Auto print polarity

ap-b

Auto print difference

data

Data memory

int

Interval time

d-no

Data number output

5-td

Time/Date output

5-id

ID number output

pU5e

Data output pause

at-f

Auto feed

Plus only

1 2 0

Minus only

Both

10 digits 100 digits 1000 digits

0 Not used

1 2 3

1 2

3 4 5 6 7 8

1 2 3

Stores unit mass in counting mode

Stores weighing data Stores calibration data

Stores upper/lower limit values

Every measurement

2 seconds 5 seconds 10 seconds 30 seconds 1 minute 2 minutes 5 minutes 10 minutes No output

Output No output

Time only Date only Time and date No output

Output

No pause Pause (1.6 seconds)

Not used Used

Displayed value>Reference

Displayed value<Reference

Regardless of displayed value

Difference between reference value and displayed value

Related items:

prt, int, d-no, 5-td, info

Interval time in the interval memory mode when using

data 2

Refer to "14. DATA MEMORY".

Selects whether or not the time or date is added to the weighting data. For details, refer to "10-9 Clock and Calendar Function".

Selects whether or not the ID number is output.

Selects the data output interval.

Selects whether or not automatic feed is performed.

prt 3,

info

GLP output

ar-d

Zero after output

No output

AD-8121 format

General data format

Not used Used

Selects GLP output method. For how to set time and date to be added, refer to “10-9 Clock and Calendar Function”.

Adjusts zero automatically after data is output.

Factory setting Note: “Digit” is a unit of minimum weighing value

Class Item and Parameter Description

5if

Serial

interface

Not displayed

when BCD

output (OP-01)

is installed.

bp5

Baud rate

btpr

Data bit, parity bit

Crlf

Terminator

type

Data format

t-Up

Timeout

erCd

AK, Error code

Ct5

CTS, RTS control

bcd

Displayed only

when BCD

output (OP-01)

is installed.

datp

Data

polp

Polarity

Stability

OVER

5trp

STROBE

5tap

Status

Unit

ID number setting

erfnc

Extended functions

*4 “Not weighing” is a condition that a weight value is not displayed such as re-zero operation or

display-off state.

0 1

3 4

1 2

0 1 2

3 4 5

0 1

0 1 0

600 bps

1200 bps

2400 bps

4800 bps 9600 bps 19200 bps

7 bits, even

7 bits, odd 8 bits, none

CR LF CR

A&D standard format

DP format

KF format MT format NU format CSV format

No limit

1 second No output Output Not used Used OFF at 1 ON at 0 ON at 1 OFF at 0 OFF at negative ON at positive or zero

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

Refer to "10-6 Description of Item "Data Format".

Selects the wait time to receive a command.

AK: ASCII code 06h

Controls CTS and RTS.

1 ON at negative OFF at positive or zero 0 OFF at stabilization indicator ON ON at stabilization indicator OFF 5tbp

1 ON at stabilization indicator ON OFF at stabilization indicator OFF 0 OFF at e, -e display 0erp

1 ON at e, -e display 0 Data refresh completed when ON→OFF

1 Data refresh completed when OFF→ON 0 OFF when weighing ON when not weighing *4

1 ON when weighing OFF when not weighing *4

Refer to “5. WEIGHING UNITS”.

Refer to “11. ID NUMBER AND GLP REPORT”.

Available only for the AD-4212A series balance when “To use the extended functions” is selected for the function switch and is used for special applications. For details, refer to “20. EXTENDED FUNCTIONS”.

Factory setting

Caution

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

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

Condition ( Cond )

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

Used when fast weighing speed is required.

After setting, the balance displays FAST.

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

weight value drift due to vibration or drafts.

After setting, the balance displays SLOW.

Note

For the AD-4212A series balance, with “Hold function (Hold)” set to “ON (1)”, this item is used to set the averaging time.

Stability band width ( 5t-b )

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

second is less than the parameter, the balance displays the stabilization indicator and outputs or

stores the data. The parameter influences the “Auto print mode”

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

for exact weighing.

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

a weight value from drifting due to vibration or drafts.

Note

For the AD-4212A series balance, with “Hold function (Hold)” set to

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

Hold function ( Hold ) (Animal weighing mode, AD-4212A only)

This function is used to weigh a moving object such as an animal. When the weight value is over the weighing range from zero and the display fluctuation is within the stabilization range for a fixed period of averaging time, the processing indicator illuminates and the balance displays the average weight of the animal. When the animal is removed from the weighing pan, the display returns to zero automatically. This function is available only when the hold function parameter is set to “1” (the animal mode indicator ANIMAL illuminates) and any weighing unit other than the counting mode is selected.

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

Weighing range Averaging time Stabilization range

0.2 g or over

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

2 seconds Faster 4 seconds | 8 seconds More accurate

5t-b 2

Small

Big

Zero tracking ( trc )

This function tracks zero point drift caused by changes in the environment and stabilizes the zero point. Three levels of zero tracking are available. When the weight value is only a few digits, turn the function off for accurate weighing.

Note

Digit, when used for the AD-4212A/B series balance, indicates the minimum displayable weighing value.

trc 0 The tracking function is not used. Used for weighing a very light sample.

trc 1 The tracking function is used. Normal zero tracking. trc 2 The tracking function is used. Strong zero tracking. trc 3 The tracking function is used. Very strong zero tracking

Display refresh rate ( 5pd )

Frequency to refresh the display. This parameter influences “BCD output”, "Comparator contact output" and “Stream mode”.

Note

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

Decimal point ( pnt )

The decimal point format can be selected.

Auto display-ON ( p-on )

When the AC adapter is plugged in, the display is automatically turned on without the ON:OFF key operation, to display the weighing mode. Used when the balance is built into an automated system. A warm up for the appropriate duration is necessary for accurate weighing.

Auto display-OFF ( poff ) (AD-4212A only)

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

Capacity indicator ( g5i )

In the weighing mode, the indicator displays the weighing data relative to the weighing capacity in percentage. (Zero = 0%, maximum capacity = 100%)

When the “Data memory ( data )” parameter is set to parameters other than “0” (not used), the indicator displays the information stored in memory, such as the amount of memory data or data number.

Minimum weighing value display at start ( rng )

When weighing is started, the digit of the minimum weighing value can be turned off without any key operation. (rng 1)

Weighing can be started with the minimum weighing value of the previous measurement displayed. (rng 2)

Tare at start ( p-tr )

When a hopper is attached to the weighing pan and loss-in weighing is performed, the remaining amount of the material will become unknown if tare is performed each time a weighing starts. When "p-tr 0" is selected, tare is not performed at weighing start. So, the remaining amount of the material can be monitored when the power is turned on.

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

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

Notes

Data output to the RS-232C is not available when the BCD output (OP-01) is installed. BCD output is refreshed at the display refresh rate.

Key mode

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

Required setting dout prt 0 Key mode

Auto print modes A and B

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

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

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

Example “With “ar-d 1” (to adjust zero after data is output), for weighing the

added sample each time a sample is added.”

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

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

Example “For weighing while a sample is added.”

Stream mode

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

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

Example “For monitoring data on a computer”

Caution

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

Key mode B

When the PRINT key is pressed or the external PRINT contact input is used, the balance outputs or stores the weighing data immediately regardless of the display condition. At this time, the display does not blink.

Key mode C

When the PRINT key is pressed or the external PRINT contact input is used, with the stabilization indictor on, the balance outputs or stores the weighing data immediately. If the stabilization indicator is not on, the balance waits for the indicator to turn on, and then outputs the weighing data. At this time, the display blinks one time.

Interval memory mode

The weighing data is periodically stored in memory.

Required setting dout prt 3 Interval memory mode dout data 2 Data memory function is used. Stores weighing data. dout int Interval time Optional setting dout 5-td1, 2, or 3 Adds the time and date.

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

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

10-6 Description of the Item “Data format”

A&D standard format 5if type 0

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

 This format consists of fifteen or sixteen characters excluding the terminator.

When numerical characters excluding a decimal point are exceeded eight characters for AD-4212B-102, the format becomes sixteen characters.

 A header of two characters indicates the balance condition.  The polarity sign is placed before the data with the leading zeros. If the data is zero, the plus

sign is applied.

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

 When comparison results are to be added (Cp fnc Cp-r 1), the results appear between the

header and the data.

ST,+000.1278 g

Header Data Unit Terminator

ST US OL

ST,+100.01278

Stable header Stable header of counting mode Unstable header Overload header

Header Data (eight characters) Unit Terminator

DP (Dump print) format 5if type 1

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

 This format consists of sixteen characters excluding the terminator.  A header of two characters indicates the balance condition. No overload header is used.  The polarity sign is placed before the data, with spaces in place of leading zeros, if the data is

not zero or overloaded.

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

W T + 0 . 1 2 7 8 g

Header Data Unit Terminator

CRL

WT US

Stable header Stable header of counting mode Unstable header

KF format 5if type 2

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

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

not zero or overloaded.

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

Data Unit Terminator

Stable value Unstable value

MT format 5if type 3

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

S 0.1 278 g

Header Data Unit Terminator

CRL

S SD SI

Stable header Unstable header Overload header

NU (numerical) format 5if type 4

This format outputs only numerical data.

 This format consists of nine characters for the AD-4212A series balance or ten characters for

the AD-4212B series balance, excluding the terminator.

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

sign is used.

+ 000.1278

+ 0000.1278

CRL

Data Terminator

CRL

Data Terminator

(AD-4212A series balance)

(AD-4212B series balance)

CSV format 5if type 5

 This format separates the data of A&D standard format and the unit by a comma ( , ).  This format outputs the unit even when the data is overloaded.  When a comma ( , ) is selected for decimal point, separators are set to semicolon ( ; ).  When the ID number, data number, time and date are added at "Data output (dout)" of the

function table, outputs ID number, data number, date, time and weighing data in this order and separates each item by a comma and treats all the items as one group of data.

LAB-0123, No,012, 2004/07/01, 12:34:56, ST,+000.1278,~~g<CR><LF>

ID number Data number Date Time Weighing data

ST,+000.1278, g

OL,+9999999E+19,

CRL

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

ID number dout 5-id 1

The number to identify a specific balance.

 This format consists of eight characters excluding the terminator.

LAB-0123

CRL

Data number dout d-no 1

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

 This format consists of six characters excluding the terminator.  When CSV format (5if type 5) is selected, the period ( . ) is replaced with a comma ( , ).

Data number Terminator

Date dout 5-td 2 or 3



The date output order can be changed in " Time/Date output (5-td)" and "Clock (Cl adj)".

 The year is output in a four-digit format.

2004/07/01

CRL

Time dout 5-td 1 or 3

 This format outputs time in 24-hour format.

12:34:56

CRL

10-8 Data Format Examples

Stable

Unstable

Overload

Positive error

Overload

Negative error

Units

Counting mode

Precent mode

Ounce (Avoir)

Troy Ounce

Metric Carat

Momme

Pennyweight

Grain

(HK general,

Ta e l

Singapore)

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

Tael (Taiwan)

Tael (China)

To l a ( I n d i a )

Messghal

Space, ASCII 20h

Carriage Return, ASCII 0Dh

Line Feed ASCII 0Ah

A&D

CcP

zzo

to z

mmo

sme

D.P.

KF MT

toz

mmo

sme

toz toz

tc tc

mmo mo

t t

AD-4212A only)

(

Multi

Space, ASCII 20h

(Blank)

10-9 Clock and Calendar Function

The balance is equipped with a clock and calendar function. When the “GLP output (info)” parameter is set to “1” or “2” and the “Time/Date output (5-td)” parameter is set to “1”, “2” or “3”, the time and date are added to the output data. Set or confirm the time and date as follows:

Operation

1 Press and hold the SAMPLE key until ba5fnc of the

function table is displayed, then release the key.

2 Press the SAMPLE key several times to display Cl adj .

3 Press the PRINT key. The balance enters the mode to

confirm or set the time and date.

Confirming the time

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

 When the time is correct and the date does not need

to be confirmed, press the CAL key and proceed to step 8.

 When the time is correct and the date is to be

confirmed, press the SAMPLE key and proceed to step 6.

 When the time is not correct and is to be changed,

press the RE-ZERO key and proceed to step 5.

Setting the time (with part of the digits blinking)

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

SAMPLE key To select the digits to change the

value. The selected digits blink.

RE-ZERO key To increase the value by one.

MODE key To decrease the value by one.

PRINT key To store the new setting, display

1end1 and go to step 6.

CAL key To cancel the new setting and go

to step 6.

Confirming the date

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

 To change the display order of year (y), month (n)

and day (d), press the MODE key. The date is output in the order as specified.

 When the date is correct and the operation is to be

finished, press the CAL key and proceed to step 8.

 When the time is to be confirmed again, press the

SAMPLE key and go back to step 4.

 When the date is not correct and is to be changed,

press the RE-ZERO key and proceed to step 7.

Note

The year is expressed using a two-digit format. For example, the year 2001 is expressed as “01”.

Setting the date (with part of the digits blinking)

7 Set the date using the following keys.

SAMPLE key To select the digits to change the

value. The selected digits blink.

RE-ZERO key To increase the value by one.

MODE key To decrease the value by one.

PRINT key To store the new setting, display

1end1 and go to step 8.

CAL key To cancel the new setting and go

to step 8.

Quitting the operation

8 The balance displays the next menu of the function

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

Notes

Do not enter invalid values such as a non-existing date when setting the time and date.

When the clock backup battery has been depleted, the balance displays rtc pf . Under

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

10-10 Comparator Function

)

The balance outputs the results of the comparison in three or five levels.

AD-4212A series balance: 3-level output (standard) or 5-level output when OP-04 is installed. AD-4212B series balance: 3-level or 5-level output, switched by “Comparator output setting

(Cp-t)” of the function table.

The comparison results are indicated by HI OK LO on the display and are contact-output from the I/O unit. The following five comparison conditions are available by “Comparator mode (Cp)” of the function

table Cp fnc.

 No comparison

 Comparison when the weight value is stable or overloaded, excluding “near zero”

 Comparison when the weight value is stable or overloaded, including “near zero”

 Continuous comparison, excluding “near zero”

 Continuous comparison, including “near zero”

Note

“Near zero” indicates the amount of ten digits (digit = the minimum displayable weighing value).

The comparison is performed using the upper limit value and lower limit value. The function table Cp fnc has one more item: “Buzzer (bep)” to select whether or not to sound the buzzer depending on the results.

Three-level comparison results

Upper limit value

Lower limit value

Comparison results Display

Weighing data

HI (upper limit value<weight value

OK (lower limit value≦weight value≦upper limit value)

LO ( weight value<lower limit value)

H I

Three-level comparison

H I illuminated

OK illuminated

LO illuminated

Contact output

H I OK LO

short open open

open short open

open open short

Buzzer

Five-level comparison results

Secondary upper limit value

Secondary lower limit valu

Upper limit value

Lower limit value

Weighing data

HH(secondary upper limit

OK (

LO (secondary lower limit value

LL (

(

value<weight value )

upper limit value<weight value≦secondary upper limit value)

lower limit value≦weight value≦upper limit value )

≦weight value<lower limit value

weight value<secondary lower limit value )

)

Five-level comparison

Comparison

results

H H

* Set the upper limit value equal to or higher than the lower limit value.

Set the secondary upper limit value equal to or higher than the upper limit value. Set the secondary lower limit value equal to or lower than the lower limit value.

Display

HH blinking

HI illuminated

OK illuminated

LO illuminated

LL blinking

H H

short open open open open

open short open open open

open open short open open

open open open short open

open open open open short

Contact output

HI OK

LO LL

Buzzer

Setting the upper/lower limit values

When five-level comparison is to be performed, using the AD-4212B series balance, set the

“Comparator output setting ( Cp-t )” parameter to “1”.

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

2 Press the SAMPLE key several times to display the value name to be set.

CpPHH secondary upper limit value

CpPHi upper limit value

CpPlo lower limit value

CpPll secondary lower limit value

3 Press the PRINT key. The value currently set is displayed with all of the digits blinking.

4 When the current setting is not to be changed, press the PRINT or CAL key to proceed to step 5.

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

the following keys.

SAMPLE key To select the digit to change the value. RE-ZERO key To change the value of the digit selected. MODE key To switch the polarity. PRINT key To store the new setting and go to step 5. CAL key To cancel the new setting and go to step 5.

5 Repeat steps 2-4 to set values as necessary.

Note

The upper/lower limit values can be set by external commands using the RS-232C serial interface.

Command example HH :+100.00000 g (to set secondary upper limit value)

HI :+080.00000 g (to set upper limit value)

LO :+060.00000 g (to set lower limit value)

LL :+040.00000 g (to set secondary lower limit value)

indicates a space (20h)

Confirming the upper/lower limit values

To confirm the upper/lower limit values during weighing operation, press the MODE key. The

upper/lower limit values will be displayed. Even under this condition, weighing operation goes on and

data output, contact output of the comparison results and RE-ZERO can be performed.

When three-level comparison is selected

When five-level comparison is selected

After a while

Weighing mode Comparison OK

Upper limit value H I illuminated

Lower limit value LO illuminated

Weighing mode Comparison OK

After a while

Secondary upper limit value H I blinking

Upper limit value

After a while

H I illuminated

Lower limit value LO illuminated

Secondary lower limit value LO blinking

After a while

Note

The upper/lower limit values can be confirmed by external commands using the RS-232C serial

interface.

e.g., Command ?HH (to confirm secondary upper limit value)

Response HH, + 100.00000 g (secondary upper limit value=100.00000 g)

Command ?HI (to confirm upper limit value)

Response H I + 080.00000 g (upper limit value=80.00000 g)

Command ? LO (to confirm lower limit value)

Response LO, +060.00000 g (lower limit value=60.00000 g)

Command ?LL (to confirm secondary lower limit value)

Response L L, +040.00000 g (secondary lower limit value=40.00000 g)

indicates a space (20h)

Adding the comparison results (AD-4212A only)

To add the comparison results to the output data, set “Comparison results (Cp-r)” parameter of the

function table to “1”.

ST, H H , 110 . 0 000 g HH (Only when OP-04 is installed.)

ST, HI, +090.0000 g HI

ST, OK,+070.0000 g OK

ST, LO, +050.0000 g LO

ST, LL,+030.0000 g LL (Only when OP-04 is installed.)

ST, - -,+000.0000 g No comparison when unstable or near zero

indicates a space (20h)

Notes

Select A&D standard format. Set “Data format (type)” parameter of the function table to “0”.

The comparison results can not be added to the weighing data stored in memory.

11. ID NUMBER AND GLP REPORT

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

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

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

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

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

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

 The balance can output the following reports for GLP.

“Calibration report” of the calibration

“Calibration test report” of the calibration test

“Title block” and “End block” for the weighing data

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

same time. Refer to “14. DATA MEMORY” for details.

 For details on confirming and setting the time and date, refer to “10-9 Clock and Calendar

Function”.

11-1 Setting the ID Number

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

the key.

2 Press the SAMPLE key several times to display id .

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

SAMPLE key To select the digit to change the value.

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

set shown below.

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

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

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

Display character set

11-2 GLP Report

Set the following parameters to output the report.

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

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

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

( info )” parameter to “2”.

 If the time and date are not correct, set the correct time and date in “Clock ( Cl adj )” of the

function table.

Note

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

Calibration report

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

AD-8121 format General data format

S/N ID DATE TIME

CALIBRATED(EXT.) CAL.WEIGHT

1234+50.00000 g

SIGNATURE

- - - - - - - -

<TERM>

AD4212B-102

01234567

ABCDEFG

2000/12/31

12:34:56

Space, ASCII 20h Terminator, , or

Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

A&D

Manufacturer

Model

Serial number

ID number

Date Time

Calibration type

Calibration

weight

Signature

A & D<TERM> AD4212B-102<TERM> S/N 01234567<TERM> ID ABCDEFG<TERM> DATE<TERM> 2000 / 1 2/31<TERM> TIME<TERM> 12:34:56<TERM> CALIB R A TED(EXT . )<TERM> CAL.WEIGHT +50.00000 g<TERM> SIGNA T U RE<TERM> <TERM> <TERM>

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

Calibration test report using an external weight

(Calibration test does not perform calibration.)

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

AD-8121 format

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

TARGET

SIGNATURE

AD4212B-102

2000/12/31

0.00000 g

+50.00020 g

+50.00000 g

- - - - - - - -

<TERM>

Space, ASCII 20h Terminator, , or

Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

A&D

01234567

ABCDEFG

12:34:56

Manufacturer

Model

Serial number

ID number

Date

Time

Calibration test

type

Zero point value

Target weight

value

Target weight

Signature

General data format

A & D<TERM> AD4212B-102<TERM> S/N 01234567<TERM> ID ABCDEFG<TERM> DATE<TERM> 2000/ 1 2 /31<TERM> TIME<TERM> 12:34:56<TERM> CAL.TEST(EXT.)<TERM> ACTUAL<TERM>

0.00000 g<TERM> +50.00020 g<TERM> TARGET<TERM> +50.00000 g<TERM> SIGNATURE<TERM> <TERM> <TERM>

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

Title block and end block

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

Notes

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

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

Operation

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

then release the key. The “Title block” is output.

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

3 Press and hold the PRINT key until recend is displayed, then release the key. The “End

block” is output.

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

AD-8121 format General data format

S/N ID DATE TIME

AD4212B-102

2000/12/31

A&D

01234567

ABCDEFG

09:30:00

WT +12.34564 g WT +12.34615 g WT +12.34625 g WT +12.34630 g WT +12.34581 g WT +12.34580 g WT +12.34701 g WT +12.34648 g

END TIME 10:40:15 SIGNATURE

- - - - - - - -

<TERM>

Space, ASCII 20h

Terminator, , or

Carriage return, ASCII 0Dh

Line feed, ASCII 0Ah

Title block

Manufacturer

Model

Serial number

ID number

Date

Time

Weighing data

Time

Signature

End block

A & D<TERM> AD4212B-102<TERM> S/N 01234567<TERM> ID ABCDEFG<TERM> DATE<TERM> 2000/12/31<TERM> TIME<TERM> 09:30:00<TERM>

WT +12.34564 g<TERM> WT +12.34615 g<TERM> WT +12.34625 g<TERM> WT +12.34630 g<TERM> WT +12.34581 g<TERM> WT +12.34580 g<TERM> WT +12.34701 g<TERM> WT +12.34648 g<TERM>

END<TERM> TIME<TERM> 10:40:15<TERM> SIGNATURE<TERM> <TERM> <TERM>

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

12. COUNTING MODE (PC)

This is the mode to determine the number of objects in a sample based on the standard sample unit mass. The unit mass is the mass of one piece of the sample. The smaller the variables in each sample unit mass are, the more accurate the counting will be. The AD-4212A/B series balance is equipped with the Automatic Counting Accuracy Improvement (ACAI) function to improve the counting accuracy.

Notes

Use samples with a unit mass of 1 mg or more (AD-4212A-100, AD-4212B series) or 10 mg or

more (AD-4212A-200/600/1000) for counting.

If the sample unit mass variable is too large, it may cause a counting error.

To improve the counting performance, use the ACAI function frequently or divide the samples

into several groups and count each group.

Selecting the counting mode

1 Set “Unit selection ( Unit )” parameter of the function table to pC (counting mode). For

details, refer to “5-2 Changing the Unit”.

Storing a sample unit mass

2 Press the SAMPLE key to enter the sample unit mass

storing mode.

To return to the counting mode without storing the sample

unit mass, press the CAL key.

3 To select the number of samples, press the SAMPLE key

several times. It may be set to 10, 25, 50 or 100.

Note

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

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

the RE-ZERO key to cancel the weight (tare). The number specified in step 3 appears.

e.g.: 25 0 pC is displayed if 25 is selected in step 3.

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

example, 25 pieces.

6 Wait for the stabilization indicator to be displayed. Press

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

Weighing pan

Container

Sample (25 pieces)

To improve the accuracy of the unit mass, proceed to step 8.

Notes

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

light and is not adequate to be used as the unit mass, it displays 1lo . In that case, store the mass by some quantity. For example, when the model with the minimum weighing value of 0.01 g is used and 10 pieces of samples weigh 0.05 g. Store 100 pieces of samples as 10 and multiply the weighing result by 10.

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

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

Counting operation

7 Place the samples to be counted on the pan.

While the stabilization indicator is on, pressing the PRINT key will output the weight value, using the RS-232C serial interface.

Note

Peripheral equipment, that is sold separately, such as

a printer or a personal computer is required.

The counting result

Place sample to be counted

Counting mode using the ACAI function

The ACAI is a function that improves the accuracy of the unit mass automatically by increasing the number of samples and averaging the unit mass variable to minimize the weighing error, as the counting process proceeds.

8 If a few more samples are added, the processing indicator turns on. To prevent an error, add

three or more. The processing indicator does not turn on if overloaded. Try to add the same number of samples as displayed.

9 The balance re-calculates the unit mass while the processing indicator is blinking. Do not touch

the balance or samples on the pan until the processing indicator turns off.

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

Each time the above operation is performed, a more accurate unit mass will be obtained.

There is no definite upper limit of ACAI range for the number of samples exceeding 100. Try to add the same number of samples as displayed.

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

improved unit mass.

13. PERCENT MODE (Pct)

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

is used for target weighing or checking the sample variable.

Selecting the percent mode

1 Set “Unit selection ( Unit )” parameter of the function table to pct (percent mode). For

details, refer to “5-2 Changing the Unit”.

Storing the 100% reference mass

2 Press the SAMPLE key to enter the 100% reference mass

storing mode.

To return to the percent mode without storing the 100%

reference mass, press the CAL key.

Weighing

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

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

4 Place the sample to be set as the 100% reference mass

on the pan or in the container.

pan

Container

5 Wait for the stabilization indicator to be displayed. Press

the PRINT key to store the reference mass. The balance displays 100.00 pct . (The reference mass stored, even if the AC adapter is removed, is maintained in non-volatile memory.)

Notes

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

used as a reference, it displays lo . Do not use the sample.

Sample (100%)

Place sample

The decimal point position depends on the 100% reference mass.

100% reference mass Minimum weighing value

0.0100 g to 0.0999 g 1%

0.1000 g to 0.9999 g 0.1%

1.0000 g or greater 0.01%

6 Remove the sample.

Weighing result compared to 100% reference mass

to be weighed

Reading the percentage

7 Place a sample to be compared to the reference mass on the pan. The displayed percentage is

based on the 100% reference mass. While the stabilization indicator is on, pressing the PRINT key will output the weight value, using the RS-232C serial interface.

Note

Peripheral equipment, that is sold separately, such as a printer or a personal computer

is required.

14. DATA MEMORY

Data memory is a function to store weighing data or calibration data to display or output later. The data memory function can also store multiple upper/lower limit values or unit mass values, for later selection as necessary.

One of the following data sets can be stored:

 Weighing data (Up to 200 sets. 100 sets when the time and date are added.)

 Calibration and calibration test data (latest 50 sets)

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

 Upper/lower limit values (Up to 20 sets)

Note

Data memory function is not available when the BCD output (OP-01) is installed.

14-1 Notes on Using Data Memory

To use the memory function, set the “Data memory ( data )” parameter of the function table. In addition, for weighing data, set the “Time/Date output (5-td)” parameter. For details on setting the data memory, refer to “10. FUNCTION TABLE”.

For weighing data, the data contents to be stored and the storage capacity depend on the “Time/Date output (5-td)” parameter setting.

Releasing “Clr”

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

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

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

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

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

Unit mass in the counting mode pC Weighing data without time and date -d- Weighing data with time and date d-t Calibration or calibration test data Hi5 Upper/lower limit values Cp

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

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

14-2 Memory for Weighing Data

 The data memory function can store 200 sets of weighing data (100 set if time and date are

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

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

because the balance stores the weighing data in memory.

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

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

Storing the weighing data

Note

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

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

2 Set the “Time/Date output (5-td)” parameter as necessary.

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

of operating modes are available to store data.

Key mode Each time the PRINT key is pressed while the displayed value is

stable, the balance stores the weighing data.

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

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

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

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

(Display example: AD-4212A series balance)

Caution

 When weighing data is being stored in memory, the data output to a personal computer using

the RS-232C interface is not available.

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

not be stored unless the memory data is deleted.

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

Q Query command for weighing data.

S Query command for stable weighing data.

SI Query command for weighing data.

SIR Query command for continuous weighing data.

Setting the function table

Parameter settings for each output mode are as follows:

Item

Mode Key mode

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

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

Data number

With 5-td 1, 5-td 2 or 5-td 3 selected, the amount of data to be stored is 100 sets.

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

Data output mode

prt 0, 4, 5

Time and date

Auto print polarity, difference Not used data 2

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

Data memory function

data 2

Both 5-td 3

Interval time

Not used

Recalling the memory data

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

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

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

following keys

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

MODE key To go back to the previous data set.

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

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

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

CAL key To exit the memory recall mode.

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

Transmitting all memory data at one time

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

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

2 Press the SAMPLE key to display out .

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

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

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

7 The balance displays Clear when all data is transmitted. Press the CAL key to return to the

weighing mode.

Deleting all memory data at one time

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

2 Press the SAMPLE key several times to display Clear .

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

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

5 Press the PRINT key to delete all data

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

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

14-3 Memory for Calibration and Calibration Test Data

 Calibration data (when and how it is performed) and calibration test data can be stored in

memory.

 All the data in memory is available to be output at one time to a printer or personal computer.

 Up to 50 data sets of the latest calibration or calibration test can be stored. When the memory

capacity has been reached, “fUl” illuminates.

Storing the calibration and calibration test data

Note

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

Store the calibration and calibration test data as follows:

1 Set the “Data memory ( data )” parameter to “3”.

2 Set the “GLP output (info)” parameter to “1” or “2”.

3 With the settings above, each time calibration or calibration test is performed, the data is stored

automatically.

Transmitting the memory data

Confirm that the “Serial interface ( 5if )” parameters are set properly. For details, refer to “10. FUNCTION TABLE” and “17. CONNECTION TO PERIPHERAL EQUIPMENT” and also confirm that the “Data memory ( data )” parameter is set to “3”.

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

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

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

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

5 The balance displays Clear when all memory data is transmitted. Press the CAL key to

return to the weighing mode.

Deleting the memory data

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

2 Press the SAMPLE key to display Clear .

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

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

5 Press the PRINT key to delete all data

6 The balance displays out when all the data has been deleted. Press the CAL key to return

to the weighing mode.

14-4 Memory for Unit Mass in the Counting Mode

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

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

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

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

Recalling the unit mass

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

2 Set “Unit selection ( Unit )” parameter of the function table to pC (counting mode). For details,

refer to “5-2 Changing the Unit”.

Note

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

3 Press and hold the PRINT key until the balance enters the sample unit mass selection mode

as shown below.

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

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

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

re-stored unit mass, follow the procedure described in “12. COUNTING MODE (PC)”.

Notes

ACAI can not be performed directly on the recalled unit mass.

Using “UN:mm” command, the unit mass can be recalled (mm represents 01-20, which

corresponds to P01-P20).

14-5 Memory for Upper/lower limit values

 Upper/lower limit values stored in memory can be selected easily by pressing the MODE key.

 Storage capacity for the 3-level comparison is 20 sets of upper/lower limit values (code

numbers C01-C20). "C01" is to store the upper and lower limit values that are set in the function table.

 The code number appears in the upper left of the display to label the value.

 Using commands, the upper/lower limit values can be recalled and changed.

Notes

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

This function is not available when the BCD output (OP-01) is installed.

Setting the function table

1 Set the “Data memory ( data )” parameter to “4”.

Note

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

Inputting the upper/lower limit values (3-level comparison)

1 Display the weighing mode.

2 Press and hold the PRINT key until the balance enters the upper/lower limit value selection

mode as shown below.

Display example

The upper limit value of the currently selected code is displayed.

3 Select the code and upper/lower limit values to be used using the following keys.

RE-ZERO key To switch the upper/lower limit values or codes (increases by one) MODE key To switch the upper/lower limit values or codes (decreases by one)

PRINT key To display the upper or lower limit value of the code selected and to

return to the weighing mode.

CAL key To cancel the operation and return to the weighing mode.

Upper/lower limit value code

4 To change the upper or lower limit value of the selected code, press the SAMPLE key. The

balance enters the value inputting mode.

Change the value using the following keys.

SAMPLE key To select the digit to change the value.

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

MODE key To change the polarity.

PRINT key To store the change, display end and return to the upper/lower

limit value selection mode.

CAL key To cancel the changes and return to the upper/lower limit value

selection mode.

5 Enter the upper and lower limit values as necessary and press the CAL key. The balance

returns to the weighing mode with the upper and lower limit value, of the code entered last, valid.

Switching the upper/lower limit values (3-level comparison)

1 Display the weighing mode.

2 Press the MODE key to select the

upper/lower limit value code.

Upper/lower limit value code

Weighing mode

Code C01 Upper limit value

Code C01 Lower limit value

Code C02 Upper limit value

Code C02 Lower limit value

3 Press the PRINT key to return to

the weighing mode.

or leave as is

Weighing mode

15. PROGRAMMABLE-UNIT (AD-4212A only)

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

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

Model Minimum coefficient Maximum coefficient AD-4212A-100 10000 AD-4212A-200/600/1000

Operation

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

2 Press the SAMPLE key several times to display mltCadj .

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

Confirming the coefficient

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

 When it is not to be changed, press the CAL key and proceed to step 6.  When it is to be changed, press the RE-ZERO key

and proceed to step 5.

Setting the coefficient

0.000001 1000

5 Set the coefficient using the following keys.

SAMPLE key To select a digit to change the

value. The selected digit blinks. RE-ZERO key To change the value. MODE key To change the decimal point

position.

Each time the switch is pressed,

the decimal point position

changes as follows:

PRINT key To store the new setting, display

1end1 and go to step 6.

CAL key To cancel the new setting and go

to step 6.

Selecting the programmable-unit ( )

6 The balance displays Unit . Press the PRINT key to enter the unit selection mode. Select the

programmable-unit ( ) as described in “5-2 Changing the Unit”.

7 Press the CAL key to exit the programmable-unit function and return to the weighing mode.

Using the function

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

16. I/O UNIT SPECIFICATIONS (Standard interface)

16-1 RS-232C/Comparator Contact Output/External Contact Input

D-Sub 25 pin numbers

D-Sub 25 pin assignments

Pin No. Signal name Interface type Direction Description

1 FG - Frame ground 2 RXD RS-232C Input Receive data 3 TXD RS-232C Output Transmit data 4 RTS RS-232C Input Ready to send 5 CTS RS-232C Output Clear to send 6 DSR RS-232C Output Data set ready 7 SG RS-232C/external contact input - Signal ground

9 LL Comparator

12 HH Comparator Output

16 LO Comparator Output Output LO 18 PRINT External contact input Input Same as the PRINT key 19 RE-ZERO External contact input Input Same as the RE-ZERO key 21 COM Comparator - Common 23 HI Comparator Output Output HI 25 OK Comparator Output Output OK

Others - - - No connection

* AD-4212B: standard, AD-4212A: when OP-04 is installed

Output

Output LL (Only when five-level comparison is selected)* Output HH (Only when five-level comparison is selected)*

RS-232C

The balance is a DCE device. Connect the balance to a personal computer (DTE) using a straight

through cable.

Transmission system : EIA RS-232C Transmission form : Asynchronous, bi-directional, half duplex Transmission rate : 10 times/second or 5 times/second (same as data refresh rate) Data format : Baud rate : 600, 1200, 2400, 4800, 9600, 19200bps Data bits : 7 or 8 bits Parity : Even, Odd (Data bits 7 bits) None (Data bits 8 bits) Stop bit : 1 bit

(When sending, 2 bits; receiving, 1 bit. A personal computer will function with either

setting.)

Code : ASCII

Balance (DCE)

Balance interior

+5V

RXD

TXD

RTS

CTS

DSR

Use a shielded cable.

(Cable shield)

Personal computer (DTE) example

Of DOS/V type

(D-Sub9)

Connector shell

TXD

RXD

RTS

CTS

DSR

Pin 3

Pin 2

Pin 7

Pin 8

Pin 6

Pin 5

Comparator contact ratings

Maximum contact voltage 100VDC

Maximum contact current 100mADC

Maximum contact resistance 20 Ω

External contact input

Balance interior

COM

Use a shielded cable.

(Cable shield)

12 (When 5-level comparison is used)*

9 (When 5-level comparison is used)*

*When OP-04 is installed in the AD-4212A series balance.

Minimum contact time 100 msec

22k

terminal

CPU

input

820

RE-ZERO

820

Balance interior

Use a shielded cable.

(Cable shield)

(Input terminal)

19 (Input terminal)

(1)

When a switch is used

18 or 19

SG 7

When a photocoupler is used

(2)

18 or 19

SG 7

(Upon switch-ON, make the voltage between the input terminal and the SG terminal 0.2V or less)

17. CONNECTION TO PERIPHERAL EQUIPMENT

17-1 Connection to the AD-8121B Printer

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

AD-8121B

Not

applicable

0, 1, 2, 4, 5

0, 1

0,1, 2, 3

0,1

0,1 *2

0,1

Factory

setting

0 0 0

2 2 2 2

0 0 0 0

0 0 0 1

0 0 0 0

Mode 1 Mode 2 Mode 3

0, 1, 2, 4, 5

**1

Class Item

prt

Data output mode

ap-p

Auto print polarity

ap-b

Auto print difference

d-no

dout

Data output

5if

Serial interface

*1 Set the parameter when the data output mode is set to the auto print mode (prt 1 or prt 2). *2 When multiple lines are to be printed, set the parameter to 1.

Data number output

5-td

Time/date output

5-id

ID number output

pUse

Data output pause

at-f

Auto feed

bp5

Baud rate

ptpr

Data bit, parity bit

Crlf

Terminator

type

Data format

Ct5

CTS, RTS control

Note

AD-8121B settings

Mode AD-8121B DIP switches Description

Mode 1

Mode 2

Mode 3

DIP switch 3: Handling unstable data

ON = To print unstable data OFF = Not to print unstable data

DIP switch 4: Data input specification

ON = Use the current loop OFF = Use the RS-232C

Prints upon data receipt Standard mode, statistical calculation mode

Prints using the AD-8121B DATA key or the AD-8121B built-in timer Standard mode, interval mode, chart mode

Prints upon data receipt Dump print mode

17-2 Connection to a Computer

The AD-4212A/B series balance is of the DCE type (Data Communication Equipment), which can

be connected to a personal computer using the RS-232C interface.

Before connection, read the personal computer manual thoroughly.

Use a standard DCE cable for connection (cable type: straight through).

17-3 Using Windows Communication Tools (WinCT)

When Windows is used as an operating system in a personal computer, the provided WinCT software

can be used to transmit the weighing data to the personal computer.

The current version of the WinCT can be downloaded from the A&D website.

The WinCT software has two communication methods: “RsCom” and “RsKey”. For details on WinCT,

refer to the WinCT instruction manual.

RsCom

 Can transmit commands to control the balance.

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

the RS-232C interface.

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



connected to the personal computer.

 When several ports of a personal computer have balances connected, can communicate with

each balance simultaneously.

 Can share a personal computer with other application software.

 Can receive the balance GLP report.

RsKey

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

such as Microsoft Excel.

 Can be used with most application software.

 Can receive the balance GLP report.

Note Windows and Excel are registered trademarks of Microsoft Corporation.

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

1 Analyzing the weighing data and the statistics with “RsKey”

The weighing data can be input directly into an Excel worksheet. Then, Excel can analyze the

data to obtain total, average, standard deviation, maximum and minimum value, and display

them in a graph.

2 Controlling the balance using commands from a personal computer

By using “RsCom”, the personal computer sends commands such as “re-zero” or “send

weighing data” to the balance and controls the balance.

3 Printing the balance GLP report using your printer

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

4 Receiving weighing data at a certain interval

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

time can be obtained.

5 Using the AD-4212A/B series balance memory function

The data can be stored in the balance’s memory. Of the data stored, the weighing data and

calibration data can be transmitted to a personal computer at one time.

6 Using a personal computer as an external indicator

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

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

18. COMMANDS

18-1 Command List

Commands to query weighing data

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

Commands to control the balance

CAL

OFF Turns the display off. ON Turns the display on. P PRT R SMP

U HH:∗∗∗. ∗∗∗∗∗ g

H I :∗∗∗. ∗∗∗∗∗ g LO:∗∗∗. ∗∗∗∗∗ g LL :∗∗∗. ∗∗∗∗∗ g

?HH ?HI ?LO ?LL

Commands to query memory data

MCL Deletes all weighing data in memory. MD:nnn Deletes weighing data with the data number nnn. ?MA Outputs all weighing data in memory. ?MQnnn Outputs weighing data with the data number nnn. ?MX Outputs the number of weighing data in memory. UN:mm Recalls the unit mass stored in memory with the number of mm (01-20). ?UN Outputs the unit mass number of the selected unit mass.

CN:mm Changes to the upper/lower limit value in memory with the number of mm.

?CN Outputs the upper/lower limit value code number of the selected limit value.

Notes: nnn indicates a three-digit numerical value.

Same as the CAL key.

Same as the ON:OFF key Same as the PRINT key Same as the RE-ZERO key Same as the SAMPLE key. Same as the MODE key (Confirm the upper/lower limit values) Sets the upper and lower limit values.

HH: Secondary upper limit value HI: Upper limit value LO: Lower limit value LL: Secondary lower limit value The unit is what is displayed in the weighing mode. Use a unit of three digits in A&D standard format. Command e.g.: HI:100.00000 g (To set the upper limit value to 100 g: indicates a space.) Outputs the upper and lower limit values. ?HH: Secondary upper limit value ?HI: Upper limit value ?LO: Lower limit value ?LL: Secondary lower limit value ?HI response e.g.: HI,+100 .00000 g

?UN response e.g.: UN,01

(mm is the upper/lower limit value code number. Standard=01 to 20)

The command is sent to the balance with the terminator selected in the “Terminator

(Crlf)” parameter of “Serial interface ( 5if )” added.

18-2 Acknowledge Code and Error Codes

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

code or error code to each command as follows:

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

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

transmits an error code (EC, Exx).

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

the data.

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

balance transmits an error code (EC, Exx).

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

transmits the acknowledge code.

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

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

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

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

R command example

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

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

18-3 Control Using CTS and RTS

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

Ct5 0

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

Ct5 1

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

18-4 Settings Related to RS-232C

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

19. BCD OUTPUT (OP-01)

Weighing data will be output in BCD, in sync with the display refreshing. In addition, the polarity (+/-)

and balance condition (stable/not stable, overload(positive/negative)) will be output.

The strobe signal allows inputting data easily. Inputting BUSY will hold data or prevent data that is

being output from being rewritten. The logic of weighing data, status, and strobe signal can be

switched individually in the function table.

Contact input is available for RE-ZERO and ON/OFF. (The same operations as pressing the

RE-ZERO and ON/OFF keys.)

19-1 Connector Pin Nos. and Specifications

I/O connector located on the rear of the display unit

Plug (provided)

Part name Product number Manufacturer Over mold cover DX30M-50-CV Plug unit (soldered type) DX40M-50P

The products above are subject to be replaced with the equivalent.

Cable

Wire size AWG #28 Core configuration 7/0.127 O.D. of insulator 0.58

Use a shielded cable and connect the shield to the connector housing.

Hirose Electric

Pin assignments and I/O logic

Output pin assignments Input pin assignments

Pin No. Signal Pin No Signal

26 1 27 2 28 4 29 8 39 1 40 2 41 4

7 9 5 3

・The pins, which are not specified, have no

connection. (Pins 2, 4, 6, 8, 10, 36. 38)

BUSY RE-ZERO ON/OFF Input signal GND Not used (Reserved)

42 8 12 1 13 2 14 4

15 8 16 1 17 2 18 4 Over e, -e display ON 19 8 20 1 Status Weighing ON 21 2 *Data refresh when OFF→ON 22 4

Data

23 8 46 1 47 2 48 4

49 8

Output logic Factory settings

When State Data 1 ON Polarity Positive or zero display ON Stability Stabilization indicator ON ON

Strobe Data receiving enabled* ON

• All output, open collector; withstand

voltage 30 V; no pull-up resistor; low-level output current 48 mA

• Output logic of data, status, and strobe

can be switched individually in the function table bcd.

24 1 25 2 30 4 31 8 32 1 33 2 34 4 35 8

BCD signals

(LS06)

50 Polarity 45 Stability 44 Over 37 Status 43 Strobe

1 Output signal GND

Housing Shield

10k

CPU

terminal

nput

5V 5V 5V

22k

10k

22k

Balance interior

820

Input signal GND

State

Control

signal

RE-ZERO

ON/OFF

BUSY

Output signal GND

Balance interior

Input logic

BUSY Data will be held during ON

Input by switch

• All input, no voltage contact or open

collector (connected to 5 V internally)

Use a shielded cable.

Housing (Cable shield)

11 N ot used (Reserved)

5 (Input terminal)

9 (Input terminal)

7 (Input terminal)

(when connected to input signal GND).

Valid when ON (when connected to input signal GND).

(1)

When a switch is used

5,9 or 7 pin

Input signal GND

When a photocoupler is used

(2)

5,9 or 7 pin

Input signal GND

(Upon switch-ON, make the voltage between the input terminal and the input signal GND terminal 0.2V or less)

Switch

Use a shielded cable.

Housing (Cable shield)

Output pins

BCD signals (Data from 10 -1 to 10 -8, Polarity, Stability, OVER, Status, Strobe)

Pin 1

BCD signal ground

OP-01 installation procedure

1 Remove the two screws that secure the I/O unit to

the rear of the display unit.

2 Remove the I/O unit and disconnect the two cable

connectors.

3 Connect the 14-pin cable connector that was

removed in step 2 to the OP-01 connector.

4 Leave the 2-pin cable connector as is.

5 Secure the OP-01 board to the rear of the display

unit using the two screws.

I/O timing chart

OP-01

Note

The time to start re-zero operation differs, depending on the timing of the re-zero input:

a. To enter re-zero operation without data update

b. To enter re-zero operation after data update In addition, the time to complete re-zero operation is not constant due to ambient conditions such as external disturbance or vibration. Using the status signal, confirm that RE-ZERO input is accepted or re-zero operation is complete.

“BUSY input ON” is the condition that pin 7 is connected to input signal GND (pin 3).

"RE-ZERO input ON" is the condition that pin 9 is connected to input signal GND (pin 3).

T int Data output interval Approx. 100 msec (Approx. 200 msec when the

data refresh rate is 5 times/second.)

T str Strobe pulse width Approx. 70 msec (Approx. 170 msec when the

data refresh rate is 5 times/second.)

T st Data setup 10 μsec or less Data refresh rate 1 μsec or less

“Switch input ON” is the condition that is connected to input signal GND (pin 3).

OFF

T on Ｔoff

T on, T off : 100 m sec or longer

20. EXTENDED FUNCTIONS (AD-4212A only)

The AD-4212A series balance has several extended functions equipped for special applications or to troubleshoot when using the standard functions.

Some settings of the extended functions may affect the weighing accuracy. Therefore, they are set to disabled at the factory when shipped. To enable the extended functions, set the function switch "Extended functions" to "1" (To use the extended functions). For details, refer to "9-1 Permit or Inhibit".

When "To use the extended functions” is selected, one item has its setting range extended as shown below and some more items are added as shown on the next page.

20-1 Description of "Averaging range" and "Averaging time"

Averaging range ( f1-b ) and averaging time ( f1-t )

1. When the fluctuation of a weight value is beyond the range that is selected in "f1-b", the

averaging operation is disabled and the display reflects the varying value.

2. Once the fluctuation becomes within the selected range, the averaging operation starts to stabilize the weight value.

3. The process of averaging increases. When the selected time is reached, moving averaging will be performed.

When a small amount of sample is weighed or is filled, the fluctuation of a weight value is too small to be beyond the selected range and the averaging operation is not disabled. Consequently moving averaging is always performed and it takes a longer time to reach the final weight value. Under such a situation, change the setting of "f1-b" to a smaller range. But please note that the smaller the range is, the more prone to external disturbance the value will become.

21. MAINTENANCE

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

repair.

 Use the original packing material for transportation.

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

moistened with warm water and a mild detergent.

22. TROUBLESHOOTING

22-1 Checking the Balance Performance and Environment

The balance is a precision instrument. When the operating environment or the operating method is

inadequate, correct weighing can not be performed. Place a sample on the pan and remove it, and

repeat this several times. If the balance seems to have a problem with repeatability or to perform

improperly, check as described below. If improper performance persists after checking, contact the

local A&D dealer for repair.

Checking that the balance performs properly (AD-4212A only)

 Check the balance performance using the self-check function.

Operation

1 Press and hold the MODE key until RESPONSE is

displayed, and then release the key.

2 The balance automatically starts to check its

internal performance

3 After self-check, the balance displays the results

and returns to the weighing mode.

e.g. “ OK ”

The example above indicates that the result of the

self check is good.

Note

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

 Check the balance repeatability using the calibration weight. Be sure to place the weight in the

center of the weighing pan. Pay attention to the air flow and be sure to use the breeze break.

 Check the balance repeatability, linearity and calibrated value using external weights with a

known value.

 When the balance is built into a system, remove the balance from the system. Place it on a

solid table. Install the breeze break and perform checking.

When the balance proper performance is confirmed, refer to page 10 to set up the installation

site.

Checking that the operating environment or weighing method is proper

Operating environment

 Is the weighing table solid enough

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

 Is the operating environment free from vibration and drafts? Has the stainless steel breeze

break been installed?

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

 Is there a heat source near the balance?

Weighing method

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

correctly?

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

performed using external contact input or an RS-232C command?

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

 Has the balance been warmed up for the appropriate duration before weighing?

AD-4212A series balance: 30 minutes or more

AD-4212B series balance: one hour or more

 Are the leveling feet of the weighing unit placed flat to the installation surface?

If not, the weight value will be unstable or the specified repeatability can not be obtained. Improve the installation condition, by securing the weighing unit or reducing the vibration that is

conveyed to the weighing unit.

Sample and container

 Has the sample absorbed or lost moisture due to the ambient conditions such as temperature

or humidity?

 Has the temperature of the container been allowed to equalize to the ambient temperature?

Refer to “3-2 When Building into a System”.

 Is the sample charged with static electricity? Refer to “3-2 When Building into a System”.

 Is the sample of magnetic material such as iron? Use much care when weighing magnetic

materials. Refer to “3-2 When Building into a System”.

22-2 Error Codes

Display Error code Description

(CHECK NO)

EC, E11

EC, E20

Weighing unit connection error

The weighing unit is not connected to the display properly. Refer to “2-2 Installing the Balance” to perform a proper connection.

Internal error

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

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

Stability error

The balance can not stabilize due to an environmental problem.

Refer to “3-2 When Building into a System” to prevent vibration, drafts, temperature changes, static electricity and magnetic fields, from influencing the balance.

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

Calibration weight error

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

Press the CAL key to return to the weighing mode.

EC, E21 Calibration weight error

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

Press the CAL key to return to the weighing mode.

Overload error

A sample beyond the balance weighing capacity has been placed on the pan.

Remove the sample from the pan.

Weighing pan Error

The weight value is too light.

Confirm that the weighing pan is properly installed and calibrate the balance.

Sample mass error

The balance can not store the sample for the counting mode or for the percent mode because it is too light.

Use a larger sample.

Display Error code Description

Unit mass error

The sample unit mass for the counting mode is too light. Storing and using it for counting will cause a counting error.

Add samples to reach the specified number and press the PRINT key.

Pressing the PRINT key without adding samples will shift the balance to the counting mode. But, to acquire accurate weighing, be sure to add samples.

Clock battery error

The clock backup battery has been depleted.

Press any key and set the time and date. The clock and calendar function works normally as long as the AC adapter is connected to the balance. If this error appears frequently, contact the local A&D dealer.

(Blinking)

(Illuminated)

Memory type error

EC, E00 Communications error

Memory full

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

Delete data in memory to store new data. For details, refer to “14. DATA MEMORY”.

Memory full

The amount of calibration or calibration test data in memory has reached the maximum capacity (50 sets).

The data in memory will be deleted automatically to store new data. For details, refer to “14. DATA MEMORY”.

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

For details, refer to “14. DATA MEMORY”.

A protocol error occurred in communications.

Confirm the format, baud rate and parity.

EC, E01 Undefined command error

An undefined command was received.

Confirm the command.

EC, E02 Not ready

A received command can not be processed.

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

weighing mode.

e.g. The balance received a Q command while

processing a RE-ZERO command.

Adjust the delay time to transmit a command.

Display Error code Description

EC, E03 Timeout error

If the timeout parameter is set to “t-Up1”, the balance did not receive the next character of a command within the time limit of one second.

Confirm the communication.

EC, E04 Excess characters error

The balance received excessive characters in a command.

Confirm the command.

EC, E06 Format error

A command includes incorrect data.

e.g. The data is numerically incorrect.

Confirm the command.

EC, E07 Parameter setting error

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

Confirm the parameter range of the command.

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

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

22-3 Asking For Repair

If the balance needs service or repair, contact the local A&D dealer.

The balance is a precision instrument. Use much care when handling the balance and observe the following when transporting the balance.

 Use the original packing material.

 Remove the weighing pan from the weighing unit.

23. SPECIFICATIONS

Weighing capacity

Maximum display 110.0084 g 210.084 g 610.084 g 1100.084 g Minimum weighing value (1 digit) 0.1 mg 1 mg Repeatability (Standard deviation) 0.15 mg 1 mg Linearity Stabilization time in seconds

(typical at FAST under good environment)

Display refresh rate

I/O unit

Buzzer

Sensitivity drift

Operating environment

Calibration weight provided (Conforming to OIML Class E2)

Applicable weight values

Weighing unit

Connection cable

AC adapter

Power consumption Approx. 11VA (supplied to the AC adapter )

mode

Percent mode

Options

RS-232C

Comparator contact output

External contact input

Dimensions 80 (W) Weighing pan 50 × 50 mm 70 × 70 mm Mass Approx. 2 kg Dimensions 237 (W) Mass Approx. 2 kg

Minimum unit mass 0.1 mg 1 mg Counting Number of samples 10, 25, 50 or 100 pieces

Minimum 100% reference mass

Minimum 100% display

OP-01 BCD output, external contact input

OP-04 RS-232C, 5-level comparator contact output, external contact input

OP-07* Extension cable 3 m OP-08 Ethernet interface

OP-19 Stainless steel breeze break （Provided as standard for AD-4212A-100） OP-20 Metal leveling foot

AD-4212A-100 AD-4212A-200 AD-4212A-600 AD-4212A-1000

110 g 210 g 610 g 1100 g

0.3 mg

0-30 g 1.1 0-30 g 0.8 0-30 g 0.9 0-30 g 0.9

30-110 g 1.3 30-210 g 1.0 30-610 g 1.1 30-1100 g 1.1

10 times/second (5 times/second can be selected)

Sounds the connected buzzer for 3-level comparison results

5°C to 40°C (41°F to 104°F), 85% RH or less (No condensation)

50 g 100 g 200 g

20 g, 50 g, 100 g

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

（

RS-232C and comparator contact output disabled）

(Not field installable. Must be ordered with the balance for installation at the factory.)

（

RS-232C and comparator contact output disabled）

2 mg

Bi-directional, 600-19200 bps

3-level output

RE-ZERO, PRINT

(It becomes 5-level when OP-04 is installed)

±2 ppm/°C (10°C-30°C/50

20 g, 50 g,

100 g, 200 g

Approx. 2 m (between weighing unit and display)

10.0 mg 100 mg

(Depends on the reference mass stored.)

20 g, 50 g, 100 g,

200 g, 300 g, 400 g,

500 g, 600 g

230 (D) × 90 (H) mm

150 (D) × 155 (H) mm Display

、

0.01%

0.1%、1%

3 mg

F-86°F )

20 g, 50 g, 100 g, 200 g,

300 g, 400 g, 500 g, 600 g,

700 g, 800 g, 900 g, 1000 g

 Only one extension cable can be used. The maximum distance between the weighing unit

and the display unit is 5 m (connection cable 2 m + extension cable 3 m).

Weighing capacity

Maximum display

AD-4212B-101 AD-4212B-102 AD-4212B-201 AD-4212B-301

110 g / 31 g*1 110 g 210 g 310 g

110.0084 g /

31.00009 g*1

Minimum weighing value (1 digit)

Repeatability (Standard deviation)

Linearity

Stabilization time (typical at FAST under good environment)

Display refresh rate

I/O unit

RS-232C

0.1 mg / 0.01 mg*1 0.01 mg 0.1 mg

0.1 mg / 0.05 mg*1

±0.2 mg / ±0.05 mg*1 ±0.1 mg

2.5 seconds /

4.0 seconds*1

10 times/second (5 times/second can be selected)

Comparator contact output

External contact input

Buzzer

Sensitivity drift

Operating environment

Calibration weight provided (Conforming to OIML Class E2)

Sounds the connected buzzer for 3-level or 5-level comparison results

±2 ppm/°C (10°C-30°C/50°F-86°F )

5°C to 40°C (41°F to 104°F), 85% RH or less (No condensation)

50 g 100 g

Applicable weight values

10 g, 20 g, 50 g, 100 g

Weighing unit

Dimensions

Weighing pan

80 (W) × 230 (D) × 90 (H) mm

φ34 mm 50 × 50 mm

Mass

Display

Dimensions

237 (W) × 150 (D) × 155 (H) mm

Mass

Connection cable

AC adapter

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

Approx. 2 m (between weighing unit and display)

power receptacle type

Power consumption Counting

mode

Percent mode

Minimum unit mass

Number of samples

Minimum 100% reference mass

Approx. 11VA (supplied to the AC adapter )

Minimum 100% display

Options

OP-01

(Depends on the reference mass stored.)

BCD output, external contact input

（RS-232C and comparator contact output disabled）

OP-07*

OP-08

（RS-232C and comparator contact output disabled）

OP-19

Stainless steel breeze break（Provided as standard）

OP-20

*1 Specifications when the precision range is used.

110.0084 g 210.0084 g 310.0084 g

30 g 0.02 mg

100 g 0.04 mg

0.1 mg 0.2 mg

±0.2 mg ±0.3 mg

4.0 seconds 2.5 seconds

Bi-directional, 600-19200 bps

3-level or 5-level output

RE-ZERO, PRINT

10 g, 20 g,

50 g, 100 g,

200 g

Approx. 2.3 kg

Approx. 2 kg

0.1 mg

10, 25, 50 or 100 pieces

10.0 mg

0.01%、0.1%、1%

Extension cable 3 m

Ethernet interface

Metal leveling foot

10 g, 20 g,

50 g, 100 g,

200 g, 300 g

 Only one extension cable can be used. The maximum distance between the weighing unit

and the display unit is 5 m (connection cable 2 m + extension cable 3 m).

24. DESIGNING A SPECIAL WEIGHING PAN

A weighing pan specially designed for the balance can be installed.

Design the weighing pan as described below:

Using the pan support

The pan support can be removed.

AD-4212A-100/200 AD-4212B-201/301

Pan support

Special weighing pan (Example)

Weighing pan

AD-4212B-101/102

Two points on the center M3 flat head screw: Length 5 mm or less

26 mm

32.8 mm

Four points on the peripheral M3 screw: Length 5 mm or less

AD-4212A-600/1000

Special weighing pan (Example)

Weighing unit

38mm

Center M3 flat heat screw Length 5 mm or less

Weighing pan

Pan support plate

Four points on the peripheral M3 screw: Length 5 mm or less

10 mm

Pan support

For the AD-4212A-600/1000, remove the screws to remove the pan support plate and the pan support.

Weighing unit

Using the pan boss

The pan boss can not be removed.

Front

Weighing unit

Approx. 16mm

Three point

19.5mm

Approx. 17.8mm

M3 screw Length 4 mm or less

7.5mm

Back

Pan support (Can be removed)

Special weighing pan (Example)

Weighing unit

Pan boss (Can not be removed)

Shock absorber specifications

The internal shock absorber functions at about 2 kg (as a static force), to protect the mass sensor. A static force of less than 2 kg will not damage the mass sensor.

Mass of the special weighing pan (AD-4212A series balance)

Design the weighing pan so that the mass falls in the ranges shown in the table below:

Mass of

special weighing pan (g) Pan support is used (with weighing pan removed) 20 to 70 AD-4212A-100 Pan boss is used (with the weighing pan and pan

support removed)

60 to 110

Pan support is used (with weighing pan removed) 20 to 120 AD-4212A-200

AD-4212A-600

AD-4212A-1000

Pan boss is used (with the weighing pan and pan support removed)

Pan support is used (with weighing pan and pan support plate removed)

Pan boss is used (with the weighing pan, pan support plate and pan support removed)

Pan support is used (with weighing pan and pan support plate removed)

Pan boss is used (with the weighing pan, pan support plate and pan support removed)

AD-4212A-600/1000AD-4212A-100/200

60 to 160

110 to 510

150 to 550

110 to 1000

150 to 1040

Weighing pan

Pan support

Dust guard

The weighing range for each pan design is shown below:

AD-4212A-100 AD-4212A-200

When the weighing pan

is removed

When the weighing pan and

pan support are removed

When the weighing pan

is removed

110 g

Mass range to be weighed

60 g

110 g

Mass range to be weighed

60 g

Mass range to be weighed

210 g

20 g

Mass

of special

weighing pan

20 g

Mass

of special

weighing pan

70 g

60 g

110 g

Mass

of special

weighing pan

Pan support plate

When the weighing pan and

pan support are removed

110 g

210 g

120 g

60 g

Mass range to be weighed

of special

weighing pan

110 g

160 g

Mass

AD-4212A-600

610 g

When the weighing pan and

pan support plate are removed

Mass range to be weighed

210 g

When the weighing pan, pan support plate

and pan support are removed

210 g

Mass range to be weighed

610 g

110 g

AD-4212A-1000

pan support plate are removed

1100 g

510 g

Mass

of special

weighing pan

When the weighing pan and

210 g

Mass range to be weighed

550 g

150 g

When the weighing pan, pan support plate

and pan support are removed

1100 g

Mass

of special

weighing pan

210 g

Mass range to be weighed

1000 g

1040 g

110 g

Mass

of special

weighing pan

150 g

Mass

of special

weighing pan

Notes

If the balance is to be used in a range other than shown above, contact the local A&D dealer.

To avoid the effect by static electricity or magnetism, use materials other than resin or

magnetic materials when designing a special weighing pan.

When a special weighing pan is used, the zero point may be shifted greatly right after the

AC adapter is plugged in. Press the RE-ZERO key before weighing to cancel the amount of zero drift as necessary.

Mass of the special weighing pan (AD-4212B series balance)

Design the weighing pan so that the mass falls in the ranges shown in the table below:

Mass of

special weighing pan (g) Pan support is used (with weighing pan removed) 5 to 55 AD-4212B-101/102 Pan boss is used (with the weighing pan and pan

support removed)

30 to 80

Pan support is used (with weighing pan removed) 20 to 120 AD-4212B-201

AD-4212B-301

Pan boss is used (with the weighing pan and pan support removed)

Pan support is used (with weighing pan and pan support plate removed)

Pan boss is used (with the weighing pan, pan support plate and pan support removed)

60 to 160

20 to 220

60 to 260

AD-4212B-101/102 AD-4212B-201/301

Weighing pan

Pan support

Breeze ring

Dust guard

The weighing range for each pan design is shown below:

AD-4212B-101/102

When the weighing pan

is removed

When the weighing pan and

Mass

60 g

110 g

55 g

30 g

110 g

Mass range to be weighed

5 g

of special

weighing pan

pan support are removed

60 g

Mass range to be weighed

80 g

Mass

of special

weighing pan

AD-4212B-201

AD-4212B-301

When the weighing pan

is removed

Mass range to be weighed

210 g

Mass

20 g

When the weighing pan and

pan support plate are removed

of special

weighing pan

110 g

120 g

When the weighing pan and

pan support are removed

110 g

Mass range to be weighed

210 g

160 g

Mass

of special

60 g

When the weighing pan, pan support plate

weighing pan

and pan support are removed

310 g

Mass range to be weighed

110 g

310 g

Mass range to be weighed

110 g

20 g

Mass

of special

weighing pan

220 g

60 g

260 g

Mass

of special

weighing pan

Notes

If the balance is to be used in a range other than shown above, contact the local A&D dealer.

To avoid the effect by static electricity or magnetism, use materials other than resin or

magnetic materials when designing a special weighing pan.

When a special weighing pan is used, the zero point may be shifted greatly right after the

AC adapter is plugged in. Press the RE-ZERO key before weighing to cancel the amount of zero drift as necessary.

25. INSTALLING THE DISPLAY UNIT

Installing the display unit on a wall using the standard stand

1. Secure the stand, that is attached to the display unit, on the wall using the four screws

2. Adjust the angle of the display unit and tighten the angle adjustment knobs located on both sides

of the display unit.

Installing in a panel

1. Cut the panel according to the size of the

display unit.

2. Remove the angle adjustment knobs located

on both sides of the display unit and remove

the standard stand.

3. Remove the screws (one on each side) that

secure the metal fixtures from rear side of the

display unit and pull the metal fixtures out.

4. Insert the display unit from the front side of the

panel.

5. From the rear side of the panel, insert the

metal fixtures in the channels located on both

sides of the display unit, and secure it with the

screws (one on each side).

26. ATTACHING THE MOUNTING FIXTURES

The mounting fixtures provided with the AD-4212A/B series balance are used to secure the weighing

unit from above in a determined position, when the weighing unit is built into a system. To attach the

fixtures to the weighing unit, use the screw holes after the three leveling feet are removed from the

bottom of the AD-4212A/B series balance weighing unit.

Attachment Procedure

1. Remove the weighing pan, pan support and dust

guard. Then, remove the three leveling feet.

Caution Removing any other screws from the bottom of the weighing unit could damage the weighing sensor.

Pan boss

Weighing unit

2. Use the leveling feet screw holes to attach

the mounting fixtures to the weighing unit.

Using the screws and washers provided with

the mounting fixtures, secure the attaching

fixtures to the weighing unit, two screws in

the front and one screw in the back.

Notes When attaching a mounting fixture, press the tabs against the weighing unit casing (one fixture in the front and another in the back) and determine the fixture position.

When the weighing unit is placed upside down to attach the mounting fixtures, use much care not to press on the pan boss directly. Applying excessive force to the pan boss may damage the weighing sensor.

Leveling foot

Press the tabs

Mounting fixture

Plain washer

Split lock washer

M6x10 pitch 0.75

Press the tabs

Back

Front

Spacer

3. Secure the weighing unit from above.

Notes The screws to secure the weighing unit to the weighing platform are not provided. Prepare appropriate screws with a size corresponding to the M6 screw. The screw hole diameter: 6.5 mm

When the leveling adjustment is difficult to perform due to the installation conditions, place a shim between the fixture and the securing surface, or use two nuts. If the adjustment is still difficult to perform, perform calibration before use. Then, the balance will function normally.

Secure

from above

27. EXTERNAL DIMENSIONS

Display unit

Weighing unit

(Bottom)

Same for all the models

237

192

Weighing unit

AD-4212A-100/200 AD-4212B-101/102 AD-4212B-201/301

40 40

149

155

115

107

(98)

176

(239)

Screw part M6XP0.75 Depth 20mm

210

230

95)

～

90 (85

* Adjustable range

(98)

176

Height up to the pan boss

92)

87 (82

210

230

176

Height up to the pan boss

95)

90 (85

(98)

92)

87 (82

Unit: mm

AD-4212A-600/1000

230

176

Height up to the pan boss

92.5 (87.5-97.5)

Weighing unit with the mounting fixtures attached

(98)

62 0.2

87 (82-92)

* Adjustable range

249

210

235 0.4

6.5

62 0.2

(90)

Unit: mm

28. OPTIONS

AD-8121B Printer

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

print function, graphic print function, dump print mode

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

AD-1683: DC static eliminator

 A compact design with efficient static elimination  No air blowing from a fan allows precision weighing

AD-1684: Electrostatic field meter

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

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

OP-01: BCD output/External contact input

OP-04: RS232C/Five-level comparator contact output (AD-4212A only)

 Only for the AD-4212A series balance. Order this option with the balance as only the factory

can install it.

OP-07: Extension cable 3 m

OP-08: Ethernet interface

 Used to connect the balance to a LAN.  The "WinCT-Plus" data communication software is provided as an accessory and can perform the

following.

Acquire data from multiple balances connected to a LAN. LAN connection enables reliable data acquisition. Control these balances with commands. Acquire data transmitted from balances.

Example: When pressing the PRINT key of the balance, data is output and is acquired by the computer.

The stored data can be used with Microsoft Excel (if installed).

Note

If a USB converter such as the AX-USB-25P is used for communication between a PC and

multiple balances, communication may be unstable.

When building into a system, use the Ethernet interface (OP-08).

OP-19: Stainless steel breeze break

 Provided as a standard accessory for the AD-4212B series

balance and AD-4212A-100

 Sold separately as an option (OP-19) for the other models

OP-20: Metal leveling foot

 It is possible to remove the plate from the screw.

When using the metal leveling feet, the height to the top of the weighing pan will be:

88-98 mm: AD-4212A-100/200 AD-4212B series balance

90.5-100.5 mm: AD-4212A-600/1000

29. TERMS/INDEX

Term s

Stable value The weight data when the stabilization indicator appears. Environment Ambient conditions such as vibration, drafts, temperature, static electricity or

magnetic fields which affect the weighing operation.

Store To save the weighing data, unit mass, calibration data or upper/lower limit values

using the data memory function.

Calibration Adjustment of the balance so that it can weigh accurately. Output To output the weighing data using the RS-232C interface. Zero point A weighing reference point or the zero display. Usually refers to the value

displayed when nothing is on the weighing pan.

Data number Numbers assigned sequentially when weighing data or unit weight is stored. Digit Unit of digital resolution. Used for the balance, the minimum displayable weighing value Tare To cancel the weight of a container which is not included in the weighing data. Mode Balance operational function. Re-zero To set the display to zero. GLP Good Laboratory Practice. Repeatability Variation in measured values obtained when the same weight is placed and

removed repetitively. Usually expressed as a standard deviation.

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

digit in the frequency of about 68%.

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

illuminates and the weighing data is displayed.

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

temperature coefficient.

e.g. Temperature coefficient = 2 ppm/°C : If a load is 100 g and the temperature

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

0.0002%/°C x 10°C x 100 g = 2 mg

Index

Keys and symbols

Carriage return ..................................... 39

Line feed ............................................. 39

Space mark .......................................... 39

Comparator indicators................ 14

Weighing speed indicators ......... 14

Interval memory active indicator

Interval memory standby indicator

Processing indicator................... 14

Stabilization indicator ................. 14

Standby indicator .......................14

CAL key ............................................ 14

MODE key ........................................ 14

........ 14

...... 14

ON/OFF key......................................14

PRINT key.........................................14

RE-ZERO key ...................................14

SAMPLE key.....................................14

100% reference mass..................................52

- A -

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

AC adapter ...................... 9, 10, 13, 34, 41, 83

ACAI .......................................................51

Acknowledge code.......................................69

AD-1683 DC static eliminator .............. 11, 94

AD-1684 Electrostatic field meter..............94

AD-8121B ....................................................65

Ambient humidity ......................................... 11

Anti-static agent........................................... 11

Anti-static wrist strap ...................................12

ap-b Auto print difference ........... 31, 65

ap-p Auto print polarity................ 31, 65

ar-d Zero after output.......................31

at-f Auto feed ............................ 31, 65

Auto display-OFF................................... 29, 34

Auto display-ON ............................5, 9, 29, 34

Auto print mode A .................................. 30, 35

Auto print mode B..................................30, 35

- B -

ba5fnc

bep HH buzzer ................................. 30

bep HI buzzer................................... 30

bep LL buzzer .................................. 30

bep- OK buzzer.................................30

bep_ LO buzzer .................................30

bp5 Baud rate ............................ 32, 65

Breeze break ................................................. 6

Breeze ring .................................................... 6

btpr Data bit, parity bit...................... 32

Environment Display

17, 29, 40, 43, 46

Cp HH Secondary upper limit...............30

Cp Hi Upper limit ................................30

Cp ll Secondary lower limit ...............30

Cp lo Lower limit ................................30

Cpout Comparator output ....................30

Cp-r Comparison results .............30, 45

Cp-t Comparator output setting...30, 42

Crlf Terminator .................................32

CSV format ..................................................38

- D -

data Data memory ............................31

Data memory ...............................................53

Data number ..........................................38, 96

Decimal point .........................................29, 34

Digit .....................................29, 31, 34, 96

Discharge..................................................... 11

Display refresh rate....................29, 34, 82, 83

d-no Data number output ............31, 38

dout Data output..........................31, 65

DP format.....................................................37

Smart range function................................4, 19

Dump print format ........................................37

Dust guard .....................................................6

- C -

CAL key ........................................... 14, 17, 22

Calibration ........................... 13, 21, 22, 47, 96

Calibration report ................................... 23, 47

Calibration test....................................... 21, 47

Calibration weight ...... 9, 21, 22, 23, 24, 25, 77

Calibration weight error ...............................79

Capacity indicator ............................ 14, 29, 34

Charged material ......................................... 11

Cl adj Clock.................... 29, 38, 40, 47

Clock battery error ....................................... 80

Command list............................................... 68

Commands to control the balance ............... 68

Commands to query memory data ..............68

Commands to query weighing data ............. 68

Communications error .................................80

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

Cond Condition ...................... 20, 29, 33

Conductive acrylic fiber ............................... 11

Counting mode ............................................50

Cp Comparator mode.............. 30, 42

Cp fnc Comparator........................30, 42

- E -

Earth ground ................................................ 11

EC, E00 .......................................................80

EC, E01 .......................................................80

EC, E02 .......................................................80

EC, E03 .......................................................81

EC, E04 .......................................................81

EC, E06 .......................................................81

EC, E07 .......................................................81

EC, E11 .......................................................79

EC, E20 .......................................................79

EC, E21 .......................................................79

erfnc Extended functions............32, 75

Error codes ..................................................69

Excess characters error ...............................81

Extended functions ..........................26, 32, 74

External contact input ..................................64

- F -

FAST .................................4, 20, 33, 82, 83

Format error .................................................81

- G

g5i Capacity indicator ................. 29, 34

GLP report....................................... 21, 46, 47

Gram mode ................................................. 18

- H -

HI ............................................ 4, 42, 43

Hold Hold function ........................29, 33

- I -

id ID number setting ....................... 32

ID number.............................................. 38, 46

info GLP output ................................. 31

Inhibit ...................................................... 26

Initializing the balance ................................. 27

Insulators..................................................... 11

Internal error................................................ 79

int Interval time................................ 31

Interval memory mode................................. 36

- K -

Key mode .................................................... 35

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

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

KF format..................................................... 37

- L -

Linearity ................................................ 82, 83

LO ............................................ 4, 42, 43

- M -

Memory full..................................................80

Memory type error ....................................... 80

MID. ...................................................... 20

Minimum 100% display.......................... 82, 83

Minimum 100% reference mass ............ 82, 83

Minimum unit mass ............................... 82, 83

Minimum weighing range............................... 4

Minimum weighing value display at start...........

MODE key................................. 14, 20, 40, 41

Mounting fixture....................................... 7, 91

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

29, 34

- N -

NU format .................................................... 37

Number of samples................................82, 83

Numerical format .........................................37

- O -

OK ............................................. 4, 42, 43

ON/OFF key ......................14, 18, 26, 34, 68

OP-01 OP-04

OP-07 Extension cable...........................94

OP-08 Ethernet interface ........................95

OP-19 Stainless steel breeze break .......95

OP-20 Metal leveling foot .......................95

Operating environment ................................83

Overload error..............................................79

Pan boss......................................................85

BCD output/External contact input RS232C/Five-level comparator contact output

.........94

..94

- P -

Pan support ...................................................6

Parameter setting error................................81

Percent mode ..............................................52

Permit .......................................................26

Plastic ....................................................... 11

pnt Decimal point ......................29, 34

p-off Auto display-OFF ................ 29, 34

p-on Auto display-ON .................. 29, 34

Powdery samples ........................................11

Precision range......................................16, 19

PRINT key ........................... 14, 17, 26, 35, 49

prt Data output mode .....................30

p-tr Tare at start .........................29, 35

pU5e Data output pause ....................31

- R -

Reference sheet ........................................5, 6

RESPONSE ..........................................20, 77

Repeatability ....................................77, 83, 96

RE-ZERO key................. 13, 14, 19, 22, 40, 52

rng

RsCom .......................................................66

RsKey .......................................................66

Minimum weighing value display at start...

29, 34

- S -

SAMPLE key14, 17, 18, 19, 22, 24, 26, 40, 50

Sample mass error ......................................79

Self-check function ......................................77

Sensitivity drift........................................82, 83

A&D AD-4212A, AD-4212A-B, AD-4212B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual