AD-4212F SERIES
AD-4212F-6203D
AD-4212F-10202
AD-4212F-22001

Production Weighing Unit

1WMPD4004727A

This Manual and Marks Herein
All safety messages are identified by the following: “CAUTION” or “NOTICE” of ANSI Z535.4 (American
National Standard Institute: Product Safety Signs and Labels).
The meanings are as follows:

Meaning of warning signs
CAUTIONNOTICE

Indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
Indicates procedures not related to physical injury.

Meaning of graphic symbols
This is a safety alert symbol.
The
symbol indicates what you must not do (prohibited).
Specific prohibitions are indicated in writing or by pictures inside or near the
The figure on the left indicates "No impact".

.

Others
Note

Describes "when it is easy to mishandle" and "general advice when using this product".

About This Manual(1) No part of this manual may be reprinted, copied, modified, or translated to another language without theprior written consent of A&D Company, Limited (A&D).
(2) The contents of this manual are subject to change without notice.
(3) Please contact A&D if you notice any uncertainty, errors, omissions, etc. in this manual.
(4) A&D bears no liability for any loss or lost profits due to the operation of this product, and for direct, indirect,
special, or consequential damages resulting from any defect in this product or this manual, even if advisedof the possibility of such damage. Furthermore, A&D assumes no liability for claims of rights from third
parties. Concurrently, A&D assumes no liability whatsoever for software or data losses.
© 2023 A&D Company, Limited
Microsoft®, Windows®, Word®, and Excel® are trademarks of the Microsoft group of companies.
Other product names and company names mentioned in this manual are trademarks or registeredtrademarks of their respective companies in Japan or other countries and regions.

1.

Contents
1-1.

Introduction .................................................................................................................................... 5
Features ....................................................................................................................................... 5

1-2.

Compliance .................................................................................................................................. 8

2-1.

Part Names, Installation and Precautions ................................................................................. 10
Assembly and installation ........................................................................................................ 112.
2-1-1.

Mass of exclusive weighing pans created by customers .................................................. 12

2-1-2.

Attaching the weighing unit directly on the mounting base ............................................. 14

2-2.

Precautions before use (Installation considerations and preparation) ............................... 15

2-3.

Precautions when incorporating into a system ..................................................................... 16

2-4.

Cautions during use (for more accurate weighing) ............................................................... 20

2-5.

Cautions after use ..................................................................................................................... 20

2-6.

Power supply ............................................................................................................................. 20

2-7.

Indicator lights........................................................................................................................... 21

3-1.

Operation of WinCT-AD4212F .................................................................................................... 22
Sensitivity adjustment .............................................................................................................. 26

3.
3-1-1.

Sensitivity adjustment method............................................................................................. 27

3-1-2.

Changing weight value .......................................................................................................... 29

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

How to use the self-check function of WinCT-AD4212F .................................................... 31
Filter settings ............................................................................................................................. 34

3-3-1.

Standard settings .................................................................................................................. 34

3-3-2.

Customize ............................................................................................................................... 35

3-4.

Changing the baud rate using WinCT-AD4212F .................................................................... 49

3-5.

Multiple connections (RS-485) ................................................................................................. 50

5-1.

Smart Range Function ................................................................................................................ 52
Impact Shock Detection Function.............................................................................................. 53
Recording impact history ......................................................................................................... 53

4.
5.
5-2.

Outputting impact history ........................................................................................................ 54

6-1.

Communication Specifications .................................................................................................. 55
RS-232C...................................................................................................................................... 55

6.
6-1-1.

RS-232C specification ........................................................................................................... 55

6-1-2.

AX-KO3590-1000 pin position............................................................................................... 56

6-2.

7.

Self-check function ................................................................................................................... 31

RS-485 ........................................................................................................................................ 56

6-2-1.

RS-485 specifications ............................................................................................................ 57

6-2-2.

Pin position when using AX-KO7522-500 ........................................................................... 57

6-2-3.

Changing device address and terminating resistor settings ............................................ 58

6-2-4.

Checking device address...................................................................................................... 58

6-2-5.

How to install the RS-485 interface for daisy chain ........................................................... 59

6-2-6.

Daisy chain connection (communication cable connection) ............................................ 60

6-2-7.

Daisy chain connection (AC adapter connection).............................................................. 61

6-3.

Data output format .................................................................................................................... 62

6-4.

Command ................................................................................................................................... 63

6-4-1.

AK code and error code ....................................................................................................... 65
Maintenance ................................................................................................................................. 71
3

7-1.

Care ............................................................................................................................................ 71

8-1.

Troubleshooting .......................................................................................................................... 72
Checking the weighing unit performance and environment ................................................ 72

8-2.

Asking for repair ....................................................................................................................... 73

9-1.

Specifications .............................................................................................................................. 74
External dimensions ................................................................................................................. 75

8.

9.
10.
10-1.

Peripherals (sold separately) ..................................................................................................... 76
Accessories ............................................................................................................................... 76

10-2.

Options ....................................................................................................................................... 76

11.

Terms ............................................................................................................................................ 78

4

1.

Introduction

Thank you for purchasing an A&D’s AD-4212F Production Weighing Unit.
This instruction manual describes how the AD-4212F series (the weighing unit) works. Please read this manual
carefully before using the weighing unit to understand and get the most out of it.

1-1. Features
The compact weighing unit has a width of only 80 mm, making it ideal for incorporating into productionlines.
The Super Hybrid Sensor (SHS) is used to provide high resolution and fast response time.
Weighing
Readability
Stabilization time*1
Modelcapacity
510 g*20.001 g
1.3 seconds
AD-4212F-6203D
6200 g0.01 g
1.0 second
0.5 second (0 to 300 g),
AD-4212F-10202
10200 g0.01 g
1.0 second (300 to 10200 g)
0.5 second (0 to 300 g),
AD-4212F-22001
22000 g0.1 g
1.0 second (300 to 22000 g)*1*2

When the stability band width is set to ±3 digits and FAST is selected in a good environment.
Smart range (Refer to "4. Smart Range Function".)The weighing unit outputs digital data directly via an RS-232C or RS-485 interface. That enables it to beconnected directly to a personal computer (PC) or programmable logic controller (PLC).
Installing an RS-485 interface for daisy chain (accessory AD4212F-29, sold separately) on the weighing
unit allows commands to be exchanged between daisy-chained units via RS-485 communication bychanging the device address of each weight unit. (Up to 31 units.)
Dustproof and waterproof (IP65 compliant).
The WinCT-AD4212F data communication software makes it easy to check weighing values on a PC
running Windows. In addition, filter settings can be easily applied as needed for the operating environment,
required response speed or desired accuracy, by being graphically simulated.
Connecting to an AD-8922A remote controller (sold separately) enables reading of the weighing data of
the weighing unit and manual re-zero and sensitivity adjustment operations. In addition, the options for
BCD output, comparator output, and analog output operations are available for the AD-8922A.
Connecting to an AD-8923-BCD or AD-8923-CC remote controller (sold separately) enables reading of
the weighing data of the weighing unit and manual re-zero and sensitivity adjustment operations. In
addition, the AD-8923-BCD is capable of BCD output, and AD-8923-CC can use CC-Link interface.

Note

CC-Link is a high-speed field network allowing simultaneous handling of both control andinformation.
By connecting an AD-8551R Modbus RTU converter (sold separately), RS-232C output can be converted
into RS-485 communication for Modbus RTU.
By connecting an AD-8552EIP EtherNet/IP converter (sold separately), RS-232C output can be converted
into EtherNet/IP communication.

5

Example 1 (Connecting to a PC or remote controller AD-8922A)
Data communication software“WinCT-AD4212F”
The weighing unit
USB port

PC
RS-232C cable(accessory: AX-KO3590-1000)

USB converter(accessory: AX-USB-9P-EX)-------------------------------------------------------------------------------------------------------------------------------------------Data communication software“WinCT”
AD-8922A

Communication cable
AX-KO1786-200

The weighing unit
USB port

PC
RS-232C cable(accessory: AX-KO3590-1000)

USB converter(accessory: AX-USB-9P-EX)--------------------------------------------------------------------------------------------------------------------------------------------

6

Example 2 (Connecting to a PLC)

PLC

The weighing unit

RS-232C cable(accessory: AX-KO3590-1000)-------------------------------------------------------------------------------------------------------------------------------------------RS-485 cable for daisy chain(accessory: AX-KO7622-200)

RS-485 interface for daisy chain(accessory: AD4212F-29)
PLC

RS-485 cable (discrete wire)(accessory: AX-KO7522-500)

Individual units*1*1

To connect more than one weighing unit in a daisy chain, an RS-485 interface for daisy chain (accessory
AD4212F-29, sold separately) is required for each unit.
Refer to “6-2. RS-485” for installation of the RS-485 interface for daisy chain, daisy-chaining connection,
and AC adapter connection.

-------------------------------------------------------------------------------------------------------------------------------------------AD-8922A-01 connection cable*2

The weighing unit

BCD input

PLC

AD-8922A

BCD cable(Please prepare this cable yourself.)

BCD output(option: AD-8922A-01)*2

Please select from below when ordering an AD-8922A-01:
AX-KO3705-2002m

AX-KO3705-500

5m

AX-KO3705-1000

10 m-------------------------------------------------------------------------------------------------------------------------------------------7

RS-232C cable(accessory: AX-KO3590-1000)

AD-8923-CC
PLC

The weighing unit

CC-Link
network
Other remote station, etc.

-------------------------------------------------------------------------------------------------------------------------------------------RS-485 cable(Please prepare this cable yourself.)
AD-8551R

PLC

The weighing unit

Other device, etc.

RS-232C cable(accessory: AX-KO3590-1000)-------------------------------------------------------------------------------------------------------------------------------------------RS-232C cable(accessory: AX-KO3590-1000)

AD-8552EIP

The weighing unit

Other device, etc.
PLC
LAN cables-------------------------------------------------------------------------------------------------------------------------------------------8

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 Class A digital devices pursuant to Part 15 of FCC
rules. These rules are designed to provide reasonable protection against interference when equipment is
operated in a commercial environment. If this unit is operated in a residential area, it may cause someinterference and under these circumstances the user would be required to take, at his own expense, whatevermeasures are necessary to eliminate the interference. (FCC = Federal Communications Commission in the
U.S.A.)

9

2.

Part Names, Installation and Precautions

The AD-4212F (the weighing unit) is a precision instrument. Unpack the product carefully. Keep the
packing material for use in transporting the weighing unit in the future for repairs.
When unpacking, see the illustration below to confirm that everything is included.
15

6

11
7

1

8

2
3
9

4

10

14

12

5

13
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Name
Weighing pan
Screw for fixing pan support (Pan head screw: M5 screws x 10)
Pan support
Pan support boss
Main body
Rear of the main body
AC adapter jackAC adapter plug
RS-232C output connector*1
Grounding terminal*3
Indicator lights
AC adapter*2
Positions of AC adapter ID labels
AC adapter ID labels
Serial number*1

The connection cable is sold separately. (Refer to " 10-1. Accessories".)*2

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

*3

When the weighing unit is incorporated into a system, be sure to ground the weighing unit using the
ground terminal.

NOTICEUse the specified dedicated AC adapter for the weighing unit.
Use the included AC adapter, and do not connect an AC adapter that is not compatible.
If you use the wrong AC adapter, the weighing unit and other devices may not work properly.
102-1. Assembly and installation
1.

Consider the cautions described later regarding the place to install the weighing unit.

2.

Set the pan support and weighing pan while referring to "2. Part Names, Installation and Precautions".

3.

Securely insert the accessory RS-232C cable into the connection jack on the back of the weighing unit.
(When communicating via RS-485, replace the rear panel with the accessory RS-485 interface and use
the accessory RS-485 cable. Refer to "6-2-5. How to install the RS-485 interface for daisy chain" for how
to install the RS- 485 interface.)
Attach the arrow (side up.

)Connect to a PC to check the
performance of the weighing unit
with “WinCT-AD4212F”.

How to disconnect the cable from the weighing unit

Slide the connector sleeve (the part marked with an arrow) to unlock the connector, and then pullout the connector.

Slide to unlock
4.
5.

Unlocked

Confirm that the AC adapter type is correct for the local voltage and power receptacle type.
Plug the AC adapter plug into the AC adapter jack located on the rear of the weighing unit and plug theAC adapter into the electrical outlet. Warm up the weighing unit for at least 30 minutes with nothing on
the weighing pan.

6.

Set the pan unit and I/O unit to adapt to the peripheral system. Set the following for the I/O unit.
･RS-232C settings (Refer to "6. Communication Specifications" for details.)
Set the weighing speed (response characteristics) to adapt to the ambient conditions. (Refer to " 3-3.
Filter settings " for details.)

NOTICE
Start up the PC before connecting to the weighing unit.
7.

After installation, it is advisable to adjust the sensitivity using a weight.
(Refer to " 3-1. Sensitivity adjustment " for details.)

8.

If the provided weighing pan is removed, exclusive weighing pans created by customers can be
attached to the four screw holes (M4 screw x pitch 0.7 mm) on the pan support.
112-1-1. Mass of exclusive weighing pans created by customers
The weighing pan of the AD-4212F is removable, and customers can create their own exclusive weighing pans
as a jig.
When designing your own exclusive jig weighing pan, note that the mass must fall within the ranges shown in
the table below. For the mass ranges to be weighed, refer to the figures below the table.
Model

Mass (g) of exclusive weighing pan

AD-4212F-6203D

40 to 6030

AD-4212F-10202

40 to 10030

AD-4212F-22001

40 to 21830

AD-4212F-6203D

AD-4212F-10202

AD-4212F-22001

Mass range
to beweighedMass range
to beweighedMass range
to beweighed6200 g

40 g

Mass ofexclusive
weighing
pan

210 g
10200 g6030 g210 g
22000 g10030 g

40 g

Mass ofexclusive
weighing
pan

40 g

Mass ofexclusive
weighing
pan

210 g

21830 gNotes

For use in a range other than those shown above, contact your local A&D dealer.
To avoid the effects of static electricity or magnetism, use materials other than resin ormagnetic materials when designing a weighing pan.
When an exclusive weighing pan is used, the zero point may be shifted greatly right after the
AC adapter is plugged in. Perform re-zero before weighing to cancel the amount of zero drift

as necessary.

12Precautions when not weighing at the center of the provided weighing pan
To use your exclusive jig weighing pan instead of weighing at the center of the provided weighing pan, attach
the jig so that the total moment of the jig and the object to be weighed is less than the value specified in thetable below.

Allowable eccentric load for each model (Nm)ModelAllowable eccentric load

AD-4212F-6203D

1 Nm or lessAD-4212F-10202

1 Nm or lessAD-4212F-22001

1 Nm or lessAD-4212F-6203D / 10202 / 22001
Example where the total moment of the jig and the object to be weighed is 1 Nm or less:1000 g0.1 m1000 g × 0.1 m

Notes

The values mentioned above are for reference and may be different from actual specifications.
Since there is no built-in overload protection mechanism, do not overload.
When designing jigs and the like, consider that the pan unit may sink slightly if a heavy object
is placed on it.

13

2-1-2. Attaching the weighing unit directly on the mounting base
For stable weighing, fix the weighing unit to the installation platform with screws.

How to attach
Use the screw holes on the weighing unit to fix it.
When screwing from the top: M6 screw × 4
When screwing from the bottom:
M8, P1.25 screw × 4

Notes

Please prepare four screws for securing theScrew holes

weighing unit to the platform.
For the positions of the holes, refer to “9-1.
External dimensions”.
Depending on the conditions in which it is

M6 screw × 4

installed, the levelness of the weighing unit may
not be adjustable. In such cases, try adjusting
the levelness by inserting a shim between thebottom surface of the weighing unit and the
securing surface or by using two nuts. Even if
the levelness cannot be adjusted, performing
sensitivity

adjustment

before

use

in

the

conditions in which the unit is installed will
prevent performance problems from occurring.

M8 × P1.25 screw × 4

14

2-2. Precautions before use (Installation considerations andpreparation)
Prepare the following conditions in order to bring out the full performance of the weighing unit:
About dustproof / waterproof performance
・ The dustproof and waterproof level of the weighing unit is equivalent to IP65, and its second digit, “5”,corresponds to "having no harmful influence by receiving direct jet of water". Washing with strong waterpressure or submersion in water may cause water to enter the balance and cause a malfunction.
・ When installing and using the weighing unit under conditions requiring dustproof and waterproof
performance, make sure that the AC adapter plug is fully inserted into the AC adapter jack and that the
RS-232C cable or RS-485 cable is attached.
・ When not using the AC adapter or the RS-232C cable, keep the rubber caps of the packing sections
closed.

Rear of the weighing unit
Indicator lights

AC adapter jackAC adapter plug

RS-232C cable
Attach the arrow (side up.
Ground terminal)

Rubber caps

The ideal installation conditions are a stable environment of 20 °C±2 °C and humidity of 45 to 60 %RH.
Use in an environment with as little dust and vibration as possible.
In a building, places near the walls rather than the central part of a room, and places on the first floor (i.e.
the ground floor) rather than the upper floors, are more suitable for weighing operations as they are lessprone to vibration.
Do not install the weighing unit near heating, ventilation, or air conditioning units and the like.
Avoid locations in direct sunlight.
Install the weighing unit away from equipment which produces magnetic fields.
Be sure to warm up the weighing unit before use for at least 30 minutes (with the AC adapter connectedto the power supply).
When the weighing unit is installed for the first time or has been moved, adjust the sensitivity before use
to ensure accurate weighing. Perform sensitivity adjustment regularly to maintain accuracy. (Refer to "31. Sensitivity adjustment" for details.)

CAUTION
Do not install the weighing unit where flammable or corrosive gas is present.
15

2-3. Precautions when incorporating into a system
This weighing unit is a high-precision electromagnetic balance. When it is incorporated into a system, errors
such as unstable weighing values may occur due to static electricity, vibration, sample temperature andmagnetism of the materials weighed or used for the devices near the weighing unit.
When using the weighing unit as part of a system, take the following precautions:

Notes

When fixing the weighing pan to the pan support boss, be careful not to apply excessive
rotational force or pressing force.
Do not apply force such as pulling up the pan support boss or applying force from the side.
Do not apply shock to the weighing pan.
Be sure to ground the weighing unit.
Keep the power supply line and signal line away from lines that carry large currents, such as
the power supply for drive equipment.

Errors due to static charge and countermeasures against those[Phenomenon]
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 weighing unit, a pulling force is generated by staticinduction between the charged material and the weighing pan. This causes unstable weighing data.
To prevent a malfunction of the weighing unit due to a discharge generated by charged material when it
comes close to the weighing unit, be sure to ground the weighing unit.
It is advisable to use a humidifier or the AD-1683 static eliminator because static electricity generated bystatic induction will not be canceled by grounding.
Charged plastic breeze break
The pulling force
causes an
unstable weighing
value.

Charged sample
A pulling force
generated
between the
charged sample
and the weighing
unit causes an
unstableweighing value.

[Countermeasures]
The countermeasures explained below using plastic as an example can also be used for glass.
● When the sample or workpiece is plastic (especially films)(1) Use a static eliminator with no fan (no breeze is produced) such

Charged material
Metal caseas the AD-1683 to remove static electricity.
(2) Place the sample or workpiece in a metal or other conductive
container to enclose it before weighing it.

Grounding16

● When the sample is powder
When the weighing unit 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 such as the AD-1683 and perform weighing while removing static electricity.
● When the sample container is made of material that is prone to static electricity (such as
plastic)(1) Cover the outside of the container with a metal such as aluminum foil.
(2) Apply an anti-static agent onto the container.
● When making devices for blocking air current (breeze breaks) using plastic
Apply antistatic agent or use conductive acrylic resin, etc. to prevent static buildup.
● When plastic exists in the weighing unit installation site
If the plastic is electrically charged, it may attract the weighing pan or the sample or workpiece,
resulting in unstable weighing data.
(1) Cover the plastic with a grounded conductive material.
(2) Apply an anti-static agent onto the plastic.
● When an operator is static charged
In the winter when temperatures are low, the operator's clothing is more likely to be electrically charged,
and the weighing data may become unstable when the operator approaches the weighing unit. Takemeasures against static electricity, such as wearing an antistatic wrist strap.

Errors due to airflow and countermeasures against those● Effects of airflow
Weighing data may become unstable due to air currents
in the following locations: (1) near the outlets of heating,ventilation, or air conditioning units, (2) near entrances orexits, and (3) near corridors, etc.
Even airflow so weak that it is undetectable by humans
can cause the weighing value of the weighing unit tobecome unstable.
Weighing operations in such locations should be avoided
if possible.
If weighing operations in such locations cannot be
avoided, take measures such as installing breeze breaks
while referring to "Errors due to static charge andcountermeasures against those".

17

Weighing data
becomes
unstable due
to air currents.

● Effects of heat and convection･

Weighing errors may occur if there is a difference between theambient temperature and temperature of the sample (and thecontainer). For example, when the room temperature is 20 °C,

Convection
20 °C

40 °C

convection occurs around a flask that is 40 °C and the balancedisplays a value lighter than the actual weight. Before weighing
the sample and the container, try to acclimatize them to theambient temperature.
･The same phenomenon as above will occur if the sample is held
directly by hand, as the temperature of the sample rises due tobody heat. Do not hold it by hand; rather, use tweezers or the
like to manipulate it.

･

Locations exposed to direct sunlight, such as near a window, may cause rapid temperaturechanges and convection currents. Take measures such as shielding from heat or changing thelocation.

Errors due to vibration and countermeasures against those
Weighing data may become unstable on windy days or after an earthquake in the following locations:(1) weak ground, (2) floors higher than the first floor, (3) near the center of a room, etc. with the pillars
spaced wide apart, (4) earthquake-resistant structures, and (5) near tall buildings.
Especially in cases (4) and (5), continuous low-frequency vibration caused by strong winds or anearthquake may persist and cause the weighing data to become unstable for a long period of time.

Errors due to moving the weighing unit
The performance of the weighing unit is guaranteed when it is used in a stationary condition.
If the weighing unit is incorporated into a system that moves the weighing unit, you must carefully
perform checks in advance while paying attention to the following:･

If the weighing unit is moved, it may be damaged by impact shocks.
In addition, the weighing value will be unstable immediately after the weighing unit is moved.
Avoid sudden movements, stops, or impact shocks, and provide a sufficient waiting time for theweighing value to stabilize when acquiring weighing data.

･The moving device should have a structure where the weighing unit can be kept level.
If the level is shifted, the zero point or sensitivity will be shifted, so perform re-zero operation or
sensitivity adjustment.

･In order to avoid the influence of vibration, the moving platform should have a structure not easily
susceptible to vibration by means such as reducing the play of moving parts.

18

Errors due to other causes and countermeasures against those● Effects of changes in temperature or humidity

Sudden environmental changes can cause convection or moisture absorption / release, and suchfactors may cause the display of the weighing unit to become unstable.
Avoid sudden changes in temperature or humidity as much as possible.
It is advisable to use air conditioners, humidifiers, and the like to control the temperature and humidity.
● Influence of magnetic materials
Influence of magnetism may cause weighing errors.
To perform weighing of magnetic materials (iron, magnets, etc.), measurement errors must be
considered and checked before weighing by means such as placing a non-magnetic material(aluminum, brass, etc.) between the sample and the weighing unit and keeping away from theweighing unit.

19

2-4. Cautions during use (for more accurate weighing)
For accurate weighing, please pay attention to the following points.
To minimize the affect by electrical noises, ground the weighing unit
and the optional display unit.
When placing a sample on the weighing pan, do not drop it, or do notplace a sample greater than the weighing capacity of the weighing
unit. Place the sample in the center of the weighing pan to minimize
corner-load errors.
To prevent possible errors, use a command to re-zero, or calculate
the weighing data based on the difference before and after weighing.
The measurement results contain errors due to air buoyancy. The
buoyancy of air varies depending on the sample volume, atmosphericpressure, temperature, and humidity.
Although the weighing unit is dustproof and waterproof complying with IP65, be sure to clean and control
the weighing pan and the area around the pan when weighing powders, fluids, or metal pieces.

2-5. Cautions after use
Avoid mechanical shock to the weighing unit.
Adjust the sensitivity of the weighing unit regularly using a weight.
Do not disassemble the weighing unit. Contact your local A&D dealer if the weighing unit needs service
or repair.
Do not use organic solvents to clean the weighing unit. Clean the weighing unit with a lint free cloth thatis moistened with warm water and a mild detergent.
Prevent foreign substances such as powder and liquid from entering the weighing unit.

2-6. Power supply
The weighing unit is constantly provided with power as long as the AC adapter is connected.
The weighing unit is not adversely affected in this state. It is advisable to always keep the weighing unit in thisstate for accurate weighing.

20

2-7. Indicator lights
The weighing unit uses two indicators to indicate the following.
Color
When

Description

LitPower is on.
Green
Blinks correspond to the baud rate setting*2
Blinking(Only when power supply begins.)
Non-weighing values (e.g., re-zero, sensitivity adjustment in
Litprogress) are output.
Red
Blinking
Warning that impact has been applied to the weighing unit*1*1 Refer to "5. Impact Shock Detection Function".
*2 See below for the number of blinks and the corresponding baud rate setting, and how to count the
number of blinks.
Number of blinks
1
2
3
4
5
6
7
8
9

Baud rate
600 bps
1200 bps
2400 bps
4800 bps
9600 bps
19200 bps
28800 bps
38400 bps
115200 bps

E.g.) Number of blinks: 3 (2400 bps)
Light: ON
Light: OFF

1stillumination

2ndillumination

3rd
illumination

1 second21

3.

Operation of WinCT-AD4212F

Using WinCT-AD4212F enables
・ Setting and simulation of weighing speed (response characteristics) of the weighing unit
・ Setting of the readability digit
・ Sensitivity adjustment
・ Setting of the baud rate・ Performance of self-inspection
・ Confirmation of impact history
In addition, since the weighing data is logged, it is possible to check the weighing data later.

NOTE

The values set above are stored in non-volatile memory even if the power of the weighing unit

is removed.

22

Before use

To download WinCT-AD4212F, please visit our website:
Go to https://www.aandd.jp/products/software/software.html, click on WinCT-AD4212F, and fill out the form to
download the software.
Step

Description

1

Install WinCT-AD4212F on your PC.
For the installation method, refer to the Readme of WinCT-AD4212F.

2

Click Language (L) in the menu of WinCT-AD4212F and change to the language of your choice.
(From here on, explanations will be given for when the language set to English.)3

Connect the D-Sub 9-pin side of the RS-232C cable (sold separately) connected to the weighing
unit to the D-Sub 9-pin connector of the PC. An accessory USB converter (AX-USB-9P-EX) isavailable if your PC does not have a D-Sub 9 pin connector.

4

Match the communication settings of WinCT-AD4212F to those of the weighing unit.
The default settings for the weighing unit and the initial settings for WinCT-AD4212F are the same
below.
Setting items
Set value
Baud Rate
2400
ParityE
Length7
Stop Bit
1
Terminator
CR/LF(Clicking the Baud rate scan button detects the baud rate of the weighing unit and automaticallymatches the setting.)

5

Set the COM port of WinCT-AD4212F.

6

Click the Start button.

7

When the connection between the product and WinCT-AD4212F is established, the Start button
will change to the End button and the weighing data will be displayed on the display screen.

8

Click the End button to disconnect the weighing unit from WinCT-AD4212F.
Step 2

Step 2, 4 Menu
Step 5 COM port
Step 4
Step 4

Step 6, 8

Display screen

23Screen parts and buttons
Importing weighing data
By operating WinCT-AD4212F while a connection between the weighing unit and WinCT-AD4212F isestablished, the data output from the weighing unit can be recorded and output as text data.

Weighing speed indicators
Unit of measure (g)Processing indicator
Stabilization indicatorStandby indicator
Log weighing data

Shock indicator
Weighing data or stored data

Add time

Window for logging

ButtonDescription
Switches between weighing mode and standby mode. In standby mode, only thestandby indicator is displayed. The ON/OFF button is always active, and clicking
the button puts the weighing unit into standby mode at any time during operation.
Switches the readability digit when clicked in weighing mode.
Changes the weighing speed.
Activates sensitivity adjustment mode.
(Does not function in normal mode. Used in sensitivity adjustment mode.)
Sets the display to zero.
Executes the self-check function.
Outputs impact history.

24

Item

Description

Log weighing data

If checked, the weighing data will be recorded in the logging
window.
Weighing data will not be recorded if the check box is notchecked. (ECL result and impact history are recorded.)

Add time

When checked, the time of reception will be added to therecord.
Deletes recorded data.
Saves the recorded data as a text file.

Shock indicator

Displays the impact level when the weighing unit detects an
impact.
For details, refer to "5. Impact Shock Detection Function".
Automatically detects the baud rate of the weighing unit toautomatically match the baud rate of the WinCT-4212F to thesetting of the weighing unit.

25

3-1. Sensitivity adjustment

About sensitivity adjustment

This is a function to adjust the sensitivity of the weighing unit using a weight.
Sensitivity adjustment can be performed without removing the exclusive weighing pan or jig attached to theweighing pan. (Note that the total of the exclusive weighing pan or jig and the weight used must not exceed
the capacity of the weighing unit.)

Caution on sensitivity adjustment

Do not allow vibration, drafts, or temperature change to affect the weighing unit during sensitivity

adjustment.

Caution on using an external weight

The accuracy of the weight used for sensitivity adjustment determines the accuracy of the weighing unit
after sensitivity adjustment.

DisplayThis indicator means the weighing unit is measuring sensitivity adjustment data.
Do not allow vibration or drafts to affect the weighing unit while this indicator is displayed.

26

3-1-1. Sensitivity adjustment method
Adjust the sensitivity using a weight.
The weight value used for sensitivity adjustment can be changed from the factory setting. To change the weightvalue, refer to " 3-1-2. Changing weight value" and select the weight value in advance.

Method of operation
Display and button
operation

Step

Description

1

Warm up the weighing unit for at least 30 minutes withnothing on the weighing pan.

2

In weighing mode, click the CAL button.
CAL 0 is displayed.
Make sure that nothing is on the weighing pan.

3

Click the PRINT button.
The zero point is measured.
(The < mark is displayed on the upper left of the screen.)
Do not apply vibration and the like to the weighing
unit.

4

The weight value is displayed.
Place the weight on the weighing pan.

5

Click the PRINT button.
The external weight is measured.
(The < mark is displayed on the upper left of the screen.)
Do not apply vibration and the like to the weighing
unit.

6

END is displayed.
Remove the weight from the weighing pan.

7

When the weight is removed, the display returns
automatically to weighing mode.

27

Weighing
operation

Display and button
operation

Step

Description

8.

Place the weight on the weighing pan again to check if
the sensitivity adjustment was performed correctly.
If it is not correct, start over from step 2 in theappropriate ambient conditions.

Weighing
operation

Button operations used for sensitivity adjustment
These are the button operations used in steps 3 to 5 of "Method of operation".
ButtonDescription
Switches to standby mode.
When clicked with CAL 0 displayed, the weight value used for sensitivity
adjustment is changed. For details, refer to "3-1-2. Changing weight value".
Cancels the sensitivity adjustment and returns to weighing mode.
Confirms the action and proceeds to the next step.

28

3-1-2. Changing weight value
The weight value used for sensitivity adjustment can be changed.
Select the weight to use from Table 1 below.
Table 1. Weights usable for sensitivity adjustment
Model
AD-4212F-6203D
AD-4212F-10202
AD-4212F-22001

Usable weight

50 g, 100 g, 200 g, 300 g, 500 g, 1000 g, 2000 g*, 3000 g, 4000 g, 5000 g, 6000 g
500 g, 1000 g, 2000 g, 3000 g, 4000 g, 5000 g*, 6000 g, 7000 g, 8000 g, 9000 g,
10000 g1000 g, 2000 g, 5000 g, 10000 g*, 20000 g* Factory setting

Method of operation
Step
1

Display and button
operation

Description
In weighing mode, click the CAL button.
CAL 0 is displayed.

2

Click the SAMPLE button.
The current weight value blinks.

3

Click the RE-ZERO button several times to select the weight value.
Click several times

4

Click the PRINT button.
The weight value is registered and the display returns to CAL 0 .

5

Adjust the sensitivity by following the operations from step 4 in "3-1-1. Sensitivity adjustment
method".

29

Button operations used to change the weight value
These are the button operations used in steps 3 to 4.
ButtonDescription
Switches to standby mode.
Selects a weight value.
For usable weights, refer to "Table 1. Weights usable for sensitivity adjustment".
Cancels the sensitivity adjustment and returns to weighing mode.
Confirms the action and proceeds to the next step.

30

3-2. Self-check function
The weighing unit is equipped with a self-check function that automatically evaluates repeatability performance
without using weights. (Electronically controlled load: ECL)
By controlling the internal mechanism, it is possible to create a state in which a minute load is applied to andremoved from the sensor, and the repeatability of the weighing unit can be expressed numerically. Operationis possible even if a tare such as a jig is placed on the weighing pan.
Use the ECL button of WinCT-AD42121F when connecting with RS-232C and executing the self-check function.
(Refer to "3-2-1. How to use the self-check function of WinCT-AD4212F".)
When connecting with RS-485 and executing the self-check function, send the "ECL" command to the weighingunit.
The measurement results are output in stages. (In the case of RS-232C, output together at the end.)

3-2-1. How to use the self-check function of WinCT-AD4212F
Step 2 Indication of start of self-check function
Step 3 Display of standard deviation

Step 1 ECL button

Step 4 Measurement result

31Method of operation (for RS-232C connection)
Step

Description

1

In weighing mode, click the ECL button.

2

ECL START is displayed and the self-check function starts.

3

After 10 weighing data results are displayed, the measured standard
deviation (SD) is displayed.
If the displayed standard deviation does not meet the specification*1 ofthe weighing unit, review the ambient conditions (drafts, vibration, static
electricity, etc.).
If the displayed standard deviation significantly exceeded thespecification*1 of the weighing unit, there may be a fatal failure in theweighing unit. Request repairs.
*1 Refer to Repeatability (Standard deviation) in "9. Specifications".

4

At the same time as results are displayed, the measurement results arecollectively output from the weighing unit and displayed as a Log in
WinCT-AD4212F.

5After END is displayed, the display returns to weighing mode.

32

Display and button
operation

Example of measurement results---ECL˽RESULT---<TERM>
˽˽˽˽˽˽˽˽˽˽˽A˽&˽D<TERM>
MODEL˽˽˽˽˽˽˽˽˽˽˽<TERM>˽˽˽AD4212F-10202<TERM>
S/N˽˽˽˽˽00000000<TERM>
ID˽0000000000000<TERM>DATE˽˽2023/06/26<TERM>
TIME˽˽˽˽06:33:38<TERM>RESULT˽˽˽˽˽˽˽˽˽˽<TERM>
˽1˽˽˽˽˽+40.63˽˽g<TERM>
˽2˽˽˽˽˽+40.60˽˽g<TERM>
˽3˽˽˽˽˽+40.65˽˽g<TERM>
˽4˽˽˽˽˽+40.61˽˽g<TERM>
˽5˽˽˽˽˽+40.65˽˽g<TERM>
˽6˽˽˽˽˽+40.58˽˽g<TERM>
˽7˽˽˽˽˽+40.62˽˽g<TERM>
˽8˽˽˽˽˽+40.61˽˽g<TERM>
˽9˽˽˽˽˽+40.61˽˽g<TERM>
10˽˽˽˽˽+40.63˽˽g<TERM>
SD˽˽˽˽˽˽0.022˽˽g<TERM>----------------<TERM>˽<TERM>CR
LF: Space, ASCII 20h: Terminator, CR LF: Carriage return, ASCII 0Dh: Line feed, ASCII 0Ah

In the WinCT-AD4212F log recording window, ˽ (space) and <TERM>(terminator) are displayed blank.

33

3-3. Filter settings
The weighing speed (response characteristics) of the weighing unit can be changed by setting the filter.
There are two types of filters available for filter settings: "Standard settings" and "Customize".

3-3-1. Standard settings
The weighing speed (response characteristics) can be set in three stages according to the disturbance suchas drafts and vibration at the place where the weighing unit is installed.
Display

Weighing speed

Stability

FAST

Fast

Susceptible tovibration and drafts

Slow

Stable display

Weighing speed setting

MID
SLOW

Method of operation
Step
1

Description

Display and button operation

In weighing mode, click the MODE button on WinCTAD4212F to select the setting.

Changes each time you click the
MODE button(Choose one of FAST , MID , or SLOW .)*1

*1

The MODE button is disabled when the filter settings are set to “Customize”.

34

3-3-2. Customize
Weighing speed (response characteristics) can be set more finely than that with the standard settings.
(“Zero tracking”, "Stability band width", "Stability detect time", "Re-zero condition", "Averaging range","Averaging time", "Digital filter")
There are two types of setting methods: "Change using the [Balance Settings] tab" and "Change using
the [Simulation] tab". When connecting via RS-485, use "Change using the [Balance Settings] tab".

(1) Change using the [Balance Settings] tab

You can select parameters in WinCT-AD4212F and write them to the weighing unit to change the filter settingsof the weighing unit.
If the setting values to be changed have been determined, they can be easily changed using the [Balance
Settings] tab.
Step 1. [Balance Settings] tab and other tabs

Step 2. Port selection
Step 4. Read button

Step 3. Connection method
selection
Step 6. Pull-down menus

Step 7. Set button

Step 5. Customize
Step

Description

1

Click the [Balance Settings] tab.

2

Select a COM port.

3

Select a connection method.
Specify the device address when connecting via RS-485.

4

Click the Read button in "Response Settings" to read the current settings from the weighing unit.

5

Select "Customize" to enable pull-down menus for averaging range, averaging time, and digital
filter.

6

Select the desired settings from the pull-down menus.

7

Click the Set button in "Response Settings" to write the selected settings to the weighing unit.

35

(2) Change using the [Simulation] tab

You can graph the simulation results of all three methods (Current settings, Simulation 1, and Simulation 2)
for weighing data captured in actual weighing work.
In the simulation tab, it is possible to visually examine setting values to be changed and compare weighing
data changes due to parameter changes.
Each parameter of Simulation 1 and Simulation 2 can be changed arbitrarily, and they can be changed tosuit the purpose for which the weighing unit is used.
In the simulation tab, it is possible to save and read information on the weighing unit, parameter setting
values, weighing data import results, and weighing data of each method in CSV format.

NOTICE
Changes using the [Simulation] tab are available only when connected via RS-232C.
When connecting via RS-485, use "(1) Change using the [Balance Settings] tab".
Importing of weighing data may not work depending on the USB converter you are using.

Port selection

Parameter nameMethod name

Display screen

Graph

Graph axis settings

36

Item
Port selection

Description
Selects the port to connect to.
Establishes a connection between the weighing unit and WinCT-AD4212F.
After the connection is established, it changes to the End button.
Disconnects the connection between the weighing unit and WinCTAD4212F.
After the connection is disconnected, it changes to the Start button.
After the connection is disconnected, the connection cannot be established
for about 20 seconds.

Display screen

Displays current weighing data.
Zeros the weighing data.

Method nameMethod names. Check the box next to the method you want to graph.

Parameter name

Modifiable parameter names.
Displays a detailed description of each parameter.
Writes the parameters of each method to the weighing unit.
Starts loading the weighing data.
After establishing the connection between the weighing unit and WinCTAD4212F, it will be enabled in about 10 seconds.
Loading takes up to 5 minutes.
Ends loading of weighing data.

Saves the weighing unit information, parameter settings, weighing data
import results, and weighing data for each method in CSV format.
Loads the CSV file saved with the save button.
By using the loaded weighing data, you can use previously acquired
weighing data and parameter settings.
Graph

Displays weighing data for each checked method.
The graph size changes according to the window size of WinCT-AD4212F.

Graph axis settings

By entering numerical values, you can change the maximum and minimum
values of the axis of the graph.

37

Step 8. Parameter selection
Step 2. Start button

Step 10. Set buttons

Step 8. Method check

Step 1. Select port

Step 3. RE-ZERO button

Step 9. Change the display range of the graph

Step 4. Start logging button
Step 7. End logging button

38

Step

Description

1

Select the port to connect to.

2

Click the Start button.
The parameters of the weighing unit are read out and the weighing data is displayed on the display
screen.

3

Click the RE-ZERO button if necessary to zero the display screen.

4

Click the Start logging button*1.
*1 The Start logging button is enabled about 10 seconds after establishing the connection
between the weighing unit and WinCT-AD4212F.

5

Loading the weighing data starts.
The loaded weighing data is graphed.
Loading takes up to 5 minutes.

6

Perform weighing work.

7

Click the End logging button.
Loading of weighing data ends.

8

Check the box(es) next to the method name(s) you want to graph.
When checked, each parameter can be selected.
Changes to parameters are instantly reflected in the graph.

Note"Current settings" parameters cannot be changed on WinCT-AD4212F.
When you click the Reload button, or click the End button and then click the Start
button again, the settings of the weighing unit will be read and the settings will be
updated.
9

You can change the display range of the graph by changing the X-axis maximum / minimum andY-axis maximum / minimum values.
The graph size changes according to the window size of WinCT-AD4212F.

10

Click the Set button for each method you want to change the settings of the weighing unit.

39

Parameter descriptions

This section describes the modifiable functions that affect the weighing data.

(1) Zero tracking
This function keeps the display at zero by tracking the zero point. When the display is zero, it keeps the display
at zero by increasing the zero track if fluctuating. It can be set regardless of filter settings. When performing
minute weighing, note that it may not be possible to weigh unless the zero track is weakened.
Set value*1

Description

OFF

No zero tracking.

Normal±1 digit*1

If the fluctuation is within 1 second, the display will remain zero.

Strong±1 digit*1

If the fluctuation is within 0.5 seconds, the display will remain zero.

Very strong*±1 digit*1

If the fluctuation is within 0.2 seconds, the display will remain zero.

For digits, refer to "(7) Digit".

* Factory setting(2) Stability band width and stability detect time
When the weighing data is less than a certain range (stability band width) and a certain amount of time(stability detection time) has passed, it is judged to be stable. When it is judged to be stable, the WinCTAD4212F displays a circle stabilization indicator and adds "ST" to the weighing data output. If unstable, thecircle turns off and "US" is added to the weighing data output.
 Output format
Stable
S

T

,

+

0

0

1

2

.

3

4

5

˽

˽

g

CR

LF

S

,

+

0

0

0

5

.

4

3

2

˽

˽

g

CR

LF

UnstableU˽ : Space, ASCII 20h
CR : Carriage return, ASCII 0Dh
LF : Line feed, ASCII 0Ah
Stability band width

Stability detection
criteria

Stability detect time

±1 digit*1

StrictStandard setting*2, *Loose

0.1 seconds
0.2 seconds
0.3 seconds
0.4 seconds
0.5 seconds
0.6 seconds
0.7 seconds
0.8 seconds
0.9 seconds±2 digits*1, *±3 digits*1±4 digits*1±5 digits*1±6 digits*1±7 digits*1±8 digits*1±9 digits*1±10 digits*1

Stability detection criteria
Depends on model andresponse characteristics
Loose

Strict* Factory setting*1

For digits, refer to "(7) Digit".

*2

Refer to "(8) Setting values in standard settings" for setting values when standard settings are used.

40

(3) Re-zero condition
This function changes the execution condition when receiving a re-zero instruction to set the display value tozero.
If it is set to "Re-zero when stable for 0.2 seconds", re-zero will be executed after confirming that the weighing
data has stabilized for 0.2 seconds after receiving an external instruction to re-zero.
By changing the re-zero execution conditions, it is possible to change the time until re-zero is performed, andto execute re-zero even in an unstable state.
 SettingRe-zero condition
Re-zero immediately regardless of the stability status
Re-zero immediately when stable
Re-zero when stable for 0.2 seconds
Re-zero when stable for 0.3 seconds
Re-zero when stable for 0.4 seconds
Re-zero when stable for 0.5 seconds*
Re-zero when stable for 0.6 seconds
Re-zero when stable for 0.7 seconds
Re-zero when stable for 0.8 seconds
Re-zero when stable for 0.9 seconds* Factory setting

41

(4) Averaging range
Averaging starts when the change in the weighing data is within the "variation range". When the averaging
width is large, such as when filling a very small amount, the response may be slow because the averaging
range is not exceeded. In that case, reducing the averaging range can speed up the response at very small
amounts. On the other hand, if the averaging range is small, it becomes vulnerable to disturbances such asdrafts. In that case, increase the averaging range.
 Set value

Approximate for each model
AD-4212F-10202
AD-4212F-22001
Standard settings*1, *Level 1 (Narrow)
Approx. 5 digits*2
Approx. 5 digits*2
Level 2
Approx. 10 digits*2
Approx. 10 digits*2
2
Level 3
Approx. 25 digits*
Approx. 30 digits*2
2
Level 4
Approx. 60 digits*
Approx. 70 digits*2
2
Level 5
Approx. 120 digits*
Approx. 130 digits*2
2
Level 6 (Wide)Approx. 180 digits*
Approx. 200 digits*2
Always perform averaging* Factory setting*1 Refer to "(8) Setting values in standard settings" for setting values when standard settings are used.
Averaging range*2

AD-4212F-6203D
Approx. 5 digits*2
Approx. 10 digits*2
Approx. 20 digits*2
Approx. 50 digits*2
Approx. 100 digits*2
Approx. 160 digits*2-

For digits, see "(7) Digit".

 Change in response when weighing very small amount due to averaging range(Example of AD-4212F-6203D)

42

(5) Averaging time
Averaging starts when the change in weighing data falls within the "variation range", and when the and when
averaging is performed until the "averaging time", the data subsequently becomes a moving average. Thissetting allows you to set the maximum time for averaging.
 Setting
Averaging timeStandard settings*1, *No averaging
0.5 seconds
1.0 second
1.5 seconds
2.0 seconds
2.5 seconds
3.0 seconds* Factory setting*1

Refer to "(8) Setting values in standard settings" for setting values when standard settings are used.

43 Change in weighing data due to averaging time (example for AD-4212F-6203D)


Averaging starts when the change in weighing data falls within the averaging range.
If the weighing data change exceeds the averaging range, averaging will not occur.
If you set a long averaging time, it will become less sensitive to changes after the weighing data falls
within the averaging range, making it easier to stabilize.

Change Averaging Time
0.5 second

3.0 second

Weighing Data (g)600.00500.00400.00300.00Since the change in the weighing value is200.00large, averaging is not performed and there
is no difference due to the averaging time.

100.00
0.00

0

2

4

6

8

10

Time (sec)Expansion

Change Averaging Time (Expansion around 500 g)
0.5 second

3.0 second

500.10Weighing Data (g)

500.08500.06500.04500.02500.0002

46Time (sec)

44

8

10

(6) Digital filter
Since the digital filter is always running, it affects the overall movement of the weighing data (weighing speed(response characteristics), stability).
The setting value is a guideline for the time it takes for the weighing data to change to near the final value after
placing the object to be weighed.
(After that, the stabilization time to confirm the weighing data varies depending on the situation.)
If you want to increase the weighing speed (response characteristics), set a smaller setting value. If stability ismore important than weighing speed (response characteristics), set a larger value.
 Setting value
Digital filter

Weighing speed

Delay approx. 0.20 seconds*

Fast

Delay approx. 0.30 seconds
Delay approx. 0.40 seconds
Delay approx. 0.45 seconds
Delay approx. 0.50 seconds
Delay approx. 0.55 seconds
Delay approx. 0.60 seconds
Delay approx. 0.65 seconds
Delay approx. 0.75 seconds
Delay approx. 0.80 seconds
Delay approx. 0.90 seconds
Delay approx. 1.10 seconds
Delay approx. 1.50 seconds
Delay approx. 1.80 seconds
Delay approx. 2.00 seconds
Delay approx. 2.50 seconds
Delay approx. 2.80 seconds

Slow

45

Stability
Susceptible to vibration anddraftsStable display* Factory setting Change in weighing data due to digital filter (example for AD-4212F-6203D)

Change Digital Filter
About 1.50 second

About 0.90 second

Weighing Data (g)600.00500.00400.00300.00200.00100.000.00-100.00

0

1

2

3

Expansion

46

4

Time (sec)

5

6

7

(7) Digit
The digits represent the readability value.
E.g. 1)

If the readability of the AD4212F-6203D is 0.001 g, 0.001 g = 1 digit.
If one display digit is blanked out and the readability is 0.01 g, 0.01 g = 1 digit.
If two display digits are blanked out and the readability is 0.1 g, 0.1 g = 1 digit.

E.g. 2)

AD4212F-6203D automatically changes the readability digit when it exceeds 510 g in smart range.
Below 510 g, readability 0.001 g = 1 digit.
Above 510 g, readability 0.01 g = 1 digit.

47

(8) Setting values in standard settings
Model

Readability

0.001 gAD-4212F-6203D

0.01 g0.1 g0.01 gResponsecharacteristics

Stability
detect time

Averagingrange

Averagingtime

Digital filter

FAST

0.30
seconds

Approx.
0.010 g3.0
seconds

Delay approx.
0.90 seconds

MID

0.40
seconds

Approx.
0.110 g5.0
seconds

Delay approx.
1.50 seconds

SLOW

0.60
seconds

Approx.
0.160 g5.0
seconds

Delay approx.
2.00 seconds

FAST

0.08
seconds

Approx.
0.10 g0.8
seconds

Delay approx.
0.50 seconds

MID

0.16
seconds

Approx.
0.20 g0.8
seconds

Delay approx.
0.90 seconds

SLOW

0.32
seconds

Approx.
0.35 g0.8
seconds

Delay approx.
1.80 seconds

FAST

0.08
seconds

Approx.
0.1 g

0.4
seconds

Delay approx.
0.20 seconds

MID

0.16
seconds

Approx.
0.1 g

0.4
seconds

Delay approx.
0.50 seconds

SLOW

0.32
seconds

Approx.
0.2 g

0.8
seconds

Delay approx.
0.90 seconds

FAST

0.08
seconds

Approx.
4.00 g0.8
seconds

Delay approx.
0.50 seconds

MID

0.16
seconds

Approx.
6.00 g0.8
seconds

Delay approx.
0.90 seconds

SLOW

0.32
seconds

Approx.
13.00 g0.8
seconds

Delay approx.
1.80 seconds

FAST

0.08
seconds

Approx.
4.0 g

0.8
seconds

Delay approx.
0.20 seconds

MID

0.16
seconds

Approx.
4.0 g

0.8
seconds

Delay approx.
0.50 seconds

SLOW

0.32
seconds

Approx.
7.0 g

0.8
seconds

Delay approx.
0.90 seconds

FAST

0.08
seconds

Approx.
23.0 g0.8
seconds

Delay approx.
0.50 seconds

MID

0.16
seconds

Approx.
34.0 g0.8
seconds

Delay approx.
0.90 seconds

SLOW

0.32
seconds

Approx.
67.0g

0.8
seconds

Delay approx.
1.80 seconds

FAST

0.08
seconds

Approx.
19 g

0.8
seconds

Delay approx.
0.20 seconds

MID

0.16
seconds

Approx.
21 g

0.8
seconds

Delay approx.
0.50 seconds

SLOW

0.32
seconds

Approx.
38 g

0.8
seconds

Delay approx.
0.90 seconds

AD-4212F-10202

0.1 g

0.1 g

AD-4212F-22001

1g

48

3-4. Changing the baud rate using WinCT-AD4212F
Method of operation
Step

Description

1

Click the [Balance Settings] tab.

2

Select a COM port.

3

Select a connection method.
Specify the device address when connecting via RS-485.

4

Select the baud rate to be used and click the Set button. (Factory setting: 2400)[Balance Settings]
tabConnection
method selection

Port selection

Baud rate
Set button

5“Completed.” appears when the setting is complete.

"Completed."
display49

3-5. Multiple connections (RS-485)
With WinCT-AD4212F, it is possible to check the operation (display of weighing data, re-zero, sensitivity
adjustment, etc.) of multiple weighing units connected in a daisy chain via RS-485.

WiringUse the accessory RS-485 interface for daisy chain (accessory: AD4212F-29) and accessory cable (AXKO7622-200) to daisy chain the weighing unit via RS-485.
(Refer to "6-2. RS-485" for details on how to attach the RS-485 interface for daisy chain and how to makedaisy chain connections.)
Use the accessory cable (AX-KO7522-500) to connect to a PLC.
(Refer to "6-2-2. Pin position when using AX-KO7522-500" for pin position.)
For connection to a PC, use a commercially available RS-485 to USB converter, etc.

Setting

Set each connected weighing unit to a different device address.
(Refer to "6-2. RS-485".)50

Method of operation
Step

Description

1

Select the number of weighing units to be connected.
(Do not exceed the number of units actually connected.)2

Select the device address for each unit.
(Do not set anything other than the address of the actually connected device.
Do not set the same device address more than once. )3

Select the COM port of the connected PC.

4

Click the Start button.

5

The Start button changes to the End button.
The weighing data of the weighing unit set to each device address is displayed on each display
screen.

6

Set the device address of the weighing unit you want to operate.

7

Click the individual buttons to operate the weighing unit individually.

Step 4. Start button

Step 3. COM port

Step 1. Number of units connected

Step 6. Device address setting

Step 7. Buttons

Step 2. Device addresses

51

4.

Smart Range Function

For AD-4212F-6203D, there are two types of range: the standard range and the precision range (higher
resolution).
The range can switch automatically depending on the display value. In addition, even when a heavy containeris placed on the weighing pan, weighing with the precision range can be performed by returning the display
value to zero with the R command.
Also, the range can be fixed to the standard range by switching the readability with the SMP command.

Operation method (Display example for AD-4212F-6203D)
Step
1

Description

Display

Send the "R" command.
(Weighing with the precision range starts.)

Weighing
operation
Weighing pan

Precision range
2

3

Place a container on the weighing pan.
(The display value has exceeded the precision range,
so the range switches to the standard range.)

Container
Standard range

Send the "R" command.
(The range switches to the precision range.)
Precision range

4

Place a sample in the container.
(The display value is within the precision range, soweighing with the precision range can be performed.)

Precision range

SamplePrecision range / Standard range
Model

AD-4212F-6203D

Type of range

Weighing range

Precision range*, *10gStandard range

510 g ~

to510 g

Readability
0.001 g0.01 g* Factory setting*1

The readability will automatically switch from 0.001 g to 0.01 g when the display value exceeds 510 g,
but by sending the R command, weighing can be done in 0.001 g readability from that point up to 510 g.

52

5.

Impact Shock Detection Function

The weighing unit is equipped with a function to detect impact shocks applied to the mass sensor.
By lowering the impact level at the time of loading, not only can variation in weighing data be mitigated, but
the risk of failure of the mass sensor can also be reduced.
In particular, when the weighing unit is incorporated into a production line, etc., and weighing is performed byan automated machine, etc., the weighing sensor may receive unexpected impacts. We recommend that you
reduce the shock level as much as possible while checking the indicator lamp (red) or the shock indicator of
WinCT-AD4212F when designing automated machines, etc.
The impact level is displayed in 5 levels from level 0 to level 4 by the indicator lamp (red).
Impact level

Blinking of indicator

WinCT-AD4212F

lamp (red)Shock indicator*1

0

No display

Description
Safe

1

CautionNo blinking
Caution:2

Alleviate impact shocks

Warning:3

Do not apply any more impact shocks
Blinking (2 seconds)
Danger:4*1

Sensor may be damaged

The shock indicator display lasts for about 4 seconds after detecting an impact.

5-1. Recording impact history
Impacts of impact level 3 or higher are automatically stored in the weighing unit with date and time (up to 50
instances).

NOTICE
If the number of recorded instances exceeds 50, the recorded data with the lowest impact level
will be overwritten.
The recorded impact history cannot be deleted.
Impact data where the weighing unit is not energized (during transport, etc.) is not recorded.

53

5-2. Outputting impact history
The stored impact history can be output by sending a specified command to the weighing unit or by operatingfrom WinCT-AD4212F.

Output by command

Sending the “?SA” command to the weighing unit outputs the stored impact data all at once.

Operation from WinCT-AD4212F
Display and button
operation

Step

Description

1

Connect with WinCT-AD4212F via RS-232C and display weighing data.
(Refer to "3. Operation of WinCT-AD4212F".)

2

When you click the Impact History button in WinCT-AD4212F, the impact
history is output from the weighing unit and displayed as a log in WinCTAD4212F.

Impact history output example
2023/03/27,05:15:41,SHOCK˽LV,4<TERM>
2023/03/27,05:15:48,SHOCK˽LV,4<TERM>
2023/03/27,05:16:00,SHOCK˽LV,4<TERM>
2023/03/27,05:16:09,SHOCK˽LV,3<TERM>
2023/03/27,05:16:20,SHOCK˽LV,4<TERM>
2023/03/27,05:16:25,SHOCK˽LV,3<TERM>˽:<TERM>:CR:
LF:

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

In the WinCT-AD4212F log recording window,
˽ (space) and <TERM> (terminator) are displayedblank.
The date display order is fixed to "Year/Month/Day".

54

6.

Communication Specifications

The weighing unit is capable of two-way communication via either RS-232C (using an accessory cable AXKO3590-1000) or RS-485 (using an accessory cable AX-KO7522-500, and for daisy chain connection, AXKO7622-200). The weighing unit is data circuit terminating equipment (DCE).

6-1. RS-232C

6-1-1. RS-232C specification
Transmission system
Transmission form
Transmission rate
Data format

Data output mode
*1

EIA RS-232C
Asynchronous, bidirectional
Approx. 3 times/second to 100 times/second(Approx. 13 times/second*) (when set to continuous output mode)
Baud rate*1
600 bps to 115200 bps(2400 bps*)
Data bits
7 bitsParityEVEN
Stop bit
1 bitsCode
ASCII
Terminator<CR><LF>
Command mode, continuous output mode** Factory setting

To change the settings, use commands by RS-232C or RS-485. (Refer to "6-4. Command" for details.)

 Relation between baud rate and transmission rate of weighing data (in continuous output mode)
Baud rate
600 bps
1200 bps
2400 bps
4800 bps
9600 bps
19200 bps
28800 bps
38400 bps
115200 bps

Transmission rate of weighing data
Approx. 3 times / second
Approx. 7 times / second
Approx. 13 times / second
Approx. 25 times / second
Approx. 50 times / second
Approx. 100 times / second
Approx. 100 times / second
Approx. 100 times / second
Approx. 100 times / second

55

6-1-2. AX-KO3590-1000 pin position
Pin position of RS-232C cable (D-Sub 9-pin side female)

1

5

Inch screw # 4-40UNC

9
Pin No.
1

Signal
name
(Vs)

6

Direction

Description-

Internal use*1(Power supply GND terminal for external equipment)
2
TXD
OutputTransmit data
3
RXD
Input
Received data
4
N.C.
5
SG
Signal ground
6
DSR
OutputData set ready
7
RTS
Input
Request to send
8
CTS
OutputPermission to send
9
(Va)
Internal use*2(Power supply output terminal for external equipment)
CTS and RTS are connected inside the weighing unit. Communication is possible by connecting TXD,
RXD, and SG.
*1, *2 When connecting to an external device such as a PLC, do not use the “internal use” signal lines forwiring.

6-2. RS-485
With RS-485, by changing the device address of each weighing unit, you can connect RS-485 signal lines ina daisy chain and exchange commands with individual weighing units. (Maximum 31 units.) Also, by using an
ON/OFF switch, a terminating resistor (100 Ω) can be connected, so there is no need to connect an externalterminating resistor to the terminating unit.
To connect the weighing unit in a daisy chain, an RS-485 interface for daisy chain (accessory: AD4212F-29)
is required. Attach it to an individual weighing unit while referring to "6-2-5.How to install the RS-485 interface
for daisy chain".
If only one unit is connected by RS-485, no RS-485 interface for daisy chain is required.
To connect the weighing unit and a PC or PLC, use an accessory cable AX-KO7522-500. To connect one
weighing unit to another, use an accessory cable AX-KO7622-200.
RS-485 cables for daisy chain(accessory: AX-KO7622-200)

RS-485 interfaces for daisy chain(accessory: AD4212F-29)
PC / PLC

RS-485 cable (discrete wire)(accessory: AX-KO7522-500)

Individual units56

6-2-1. RS-485 specifications
Transmission system
Transmission form
Transmission rate
Datal format

Data output mode
Device address
Terminating resistor*1

EIA RS-485
Asynchronous (asynchronous), bidirectional
Approx. 3 times/second to 100 times/second(Approx. 13 times/second*)
Baud rate*1
600 bps to 115200 bps(2400 bps*)
Data bits
7 bitsParityEVEN
Stop bit
1 bit
Code
ASCII
Terminator<CR><LF>
Command mode only
00* to 99
None (open)*, 100 Ω* Factory setting

To change the settings, use commands by RS-232C or RS-485. (Refer to "6-4. Command" for details.)

6-2-2. Pin position when using AX-KO7522-500

Lead wire
Yellow
Yellow / WhiteBlue
Blue / White
Black
*1

Signal name
DC+
GND
DATA+
DATA−
FG

Direction
Input / output
Input / output
Input / output
Input / output-

Description
Power supply (12 VDC)*1
Power supply (0V)
RS-485 signal line
RS-485 signal line
Frame ground

Supplies power to the weighing unit. 12 V is output when power is supplied directly to the weighing
unit with the included AC adapter.

CAUTION
DC+ (yellow) and GND (yellow / white) are connected to the power supply +12 V and 0 V of theweighing unit. When supplying power to the weighing unit, be careful not to make a mistake in thevoltage, as this may lead to malfunction of the weighing unit or fire.
Also, when the power is on, do not allow the terminals of the discrete wires to come into contact
with each other or surrounding objects, and do not touch them with your hands. Doing so may
result in malfunction of the weighing unit or electric shock.

57

6-2-3. Changing device address and terminating resistor settings
The device address of the weighing unit can be changed by two methods: change by rotary switch and change
by command. (If the device address is set by both the rotary switch and command, the rotary switch setting
takes precedence.)
Also, the RS-485 terminating resistance can be changed between none (open) and 100 Ω using an ON/OFF
switch. Turn the ON/OFF switch of the weighing unit at the end of the daisy chain connection to ON.

Change device address by rotary switch and terminating resistance change by ON/OFF switch
Step
1

Description
Use a screwdriver to remove the screws (4 places)on the back of the weighing unit and open the panel.
Screws on the back (4 places)

Open the panel
2

Operate the rotary switch and ON/OFF switch on theboard to change the setting.
Rotary switch
Set value
Device address
0
Not added
1 to F
01 to 15
ON/OFF switch
Set value
Terminating resistor
OFF(Left)None(open)
ON(Right)
100 Ω

ON
OFF

Change by command
Send the “DAD**” command to the weighing unit. (In the ** part, enter the number you want to set from 00 to
99.)

6-2-4. Checking device address
Sending the “?DAD” command to the weighing unit outputs the set device address.
If both the rotary switch and command are set, the rotary switch setting takes precedence.
Rotary switch

Command settings

Device address"?DAD" response000

00 (none)

DAD,00

1 to 15―

01 to 15

DAD,01 to 15

0

01~99

01 to 99

DAD,01 to 9958

6-2-5. How to install the RS-485 interface for daisy chain
Step
1

Description
Use a screwdriver to remove the screws (4 places)on the back of the weighing unit and open the panel.

Back of the weighing unit

Screws on the back (4 places)

CAUTION
The rubber packing has a front and back, so
be careful to attach it correctly.
2

Disconnect the cable attached to the panel from theconnector on the board.
When removing the cable, pull it out while pressing
the tab on the connector.

Open the panel
Cable

Connector

Rear of theweighing
unit
Pull out while pressing the tab
3

2 connectors

Plug the two cables attached to the RS-485
interface for daisy chain into the two connectors on
the board. (The cables can be plugged into either
connector.)

DATA2 cable
Rear of theweighing
unit

DATA1 cable
DATA1 cable
DATA2 cable

RS-485 interface for daisy chain(accessory: AD4212F-29)

59

Step
4

Description
Refer to the figure below and make sure that therubber packing is attached to the groove on the backof the weighing unit correctly, and then install thepanel with the four screws you removed in step 1.

Back of the weighing unit

NOTICE
If the rubber packing is not attached correctly,
it may affect the dustproof / waterproof
performance.

Weighing unit side(back)
Panel side (front)

Install the panel
Rubber packing

Rubber packing

6-2-6. Daisy chain connection (communication cable connection)
The weighing unit with an RS-485 interface for daisy chain (accessory: AD4212F-29) has two connectors,
DATA1 and DATA2. Use these two connectors to connect the weighing unit to a PC or PLC, or to connect theweighing unit to another unit.
Step 1

To connect the weighing unit to a PC or PLC, use an accessory cable AX-KO7522-500. Connect thecable to either DATA1 or DATA2. Connect the discrete wire side of the cable to a PC or PLC.

Step 2

To connect the weighing unit to another weighing unit, use an accessory cable AX-KO7622-200.
Connect the cable to the connector that remains unused on the weighing unit and to either DATA1 orDATA2 on another unit.

Step 3Connect all the weighing units to be daisy-chained by repeating step 2.

Connection example (back of the weighing unit)
RS-485 cable for daisy chain(accessory: AX-KO7622-200)
(1)

(2)

PC / PLC
RS-485 cable (discrete wire)(accessory: AX-KO7522-500)(3)

RS-485 interface for daisy chain(accessory: AD4212F-29)

60

NOTICE
If the terminating weighing unit also has an RS-485 interface for daisy chain installed, close theunused connector DATA1 or DATA 2 by attaching the rubber cap that is affixed to the packing.
The RS-232C cable (AX-KO3590-1000) cannot be connected to the DATA1 and DATA2 connectors
at the same time.

6-2-7. Daisy chain connection (AC adapter connection)
Normally, an AC adapter is connected to each weighing unit individually, but only when an accessory cable
AX-KO7622-200 is used to connect one unit to another in a daisy chain, a single AC adapter is capable ofsupplying power for up to five units. To connect more than five units in a daisy chain, connect an AC adapter
to one unit first, then connect the unit to the daisy chain. In this case, at least one AC adapter must beconnected to one unit at equal intervals of no more than five units. Note that if one AC adapter is connected
to supply power for more than five units in a daisy chain, the power may be insufficient for operation.

Individual weighing units

Weighing unit
(terminating unit)

PC / PLC

One AC adapter supplies power for up to
five units.
Connect at least one AC adapter at equalintervals of no more than five units.
AC adapter

61

AC adapter

6-3. Data output format･ The output format consists of 15 characters (excluding the terminator<CR><LF>).
･ The condition of the data is indicated with a 2-character header.
･ The data is added with polarity.
･ If the data is zero, the polarity is positive.
･ For RS-485, device address information*1 is added before the header depending on the device address
setting.
*1

The device address information is not added when the device address is set to "00".

Output example
1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

S

T

,

+

0

0

1

2

.

3

4

5

˽

˽

g

CR

LF

HeaderData

Unit

Terminator

When stable
S

T

,

+

0

0

1

2

.

3

4

5

˽

˽

g

CR

LF

+

0

0

0

5

.

4

3

2

˽

˽

g

CR

LF

9

9

9

9

9

9

E

+

1

9

CR

LF

When overloaded (negative)
−
O
L
,
9
9

9

9

9

9

9

E

+

1

9

CR

LF

When unstable
U

S,

When overloaded (positive)
O

L

,

+

9

Example of RS-485 output when a device address between "01" to "99" is set
1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

@

0

1

S

T

,

+

0

0

1

2

.

3

4

5

˽

˽

g

CR

LF

Same content as RS-232C output
Changes from 01 to 99 depending on the device address setting
Device address information

62

Terminator˽: Space,

ASCII 20h

CR

: Carriage return,

ASCII 0Dh

LF

: Line feed,

ASCII 0Ah

6-4. Command
The weighing unit can be controlled by commands.
The RS-232C output of the weighing unit continuously outputs weighing data when the power is turned on andthe weighing unit is in weighing mode. When requesting weighing data with the “Q” and “S” commands, stop
the continuous output of weighing data with the “C” command. Alternatively, if the command mode is set withthe "PR:00" command, the settings will be saved even if the power is turned off, so continuous output will stop
immediately after the power is turned on again.
Add the terminator CR LF to the following command and send it to the weighing unit.
If a device address "01" to "99" is set and a command is sent by RS-485, prefix the command with "@**". (Inthe place of “**”, enter the device address set between "01" to "99".)
CR : Carriage return, ASCII 0Dh
LF: Line feed, ASCII 0Ah

 Commands to query weighing data
Command

Description
Temporarily sets to command mode.

C

Weighing data is output according to a data request from the host.
The settings will be canceled when the power supply is removed.
Requests one weighing data case immediately. (The weighing data is output regardlessQof whether it is stable or unstable. Please use it with the continuous output stopped.)
Requests one weighing data case after stabilization. (The weighing data will be output

S

after it becomes stable. Please use it with the continuous output stopped.)
Temporarily sets to continuous output mode.

SIR*1

Weighing data is output continuously.
The settings will be canceled when the power supply is removed.
("C" command stops continuous output.)*1

Valid only for RS-232C output. Not valid for RS-485 output.

 Commands to control the weighing unit
Command

Description

CAL

Enters sensitivity adjustment mode.*OFF

Turns the display off. The weighing unit enters standby mode.

ON

Turns the display on. The weighing unit enters weighing mode.

P

Switches between weighing mode and standby mode.

PRT

Confirms the sensitivity adjustment value.

R

Sets the weighing data to zero. (re-zero)*3

SMP

Changes the readability.

U

Changes the weighing speed.*2, *4

ECL

Runs ECL.

*22

When connected via RS-232C, control characters starting with "@" are output from the weighing unit
when the weighing speed (response characteristics) is switched or in the sensitivity adjustment mode.

*3

In the operation to zero the weighing data, waits for the weighing data to stabilize.
While waiting for the weighing data to stabilize, weighing data transmission from the weighing unit stops.

*4

Weighing speed (response characteristics) will not be changed when set to Customize.

63 Changing and checking the internal data of the weighing unit
Command
Description
Weight value setting for sensitivity adjustment (including instrumental error)
CW:
Example When setting to 2000.123g, CW:+2000.123˽˽g?CW
Weight value output for sensitivity adjustment (including instrumental error)
TM:
Time setting
Example When setting to 12:34:56, TM:12:34:56?TMTime output
DT:
Date setting
Example When setting to October 24, 2023, DT:23/10/24?DT
Date output?SA
Impact history output
Weighing speed (response characteristics) output?CDStandard settings:CD,00(FAST) CD,01(MID.) CD,02(SLOW)
Customize:CD,10
˽: Space, ASCII 20h
 Commands related to communication settings
Port

RS-232C
RS-485
Commonsettings

Description

Baud rate*6

Setting

Confirmation
Error code
outputSettings for
RS-232C

Output mode

Settings for
RS-485

Deviceaddress*7

Setting
Confirmation
Setting
Confirmation
Setting
Confirmation

Command
Setting value
Settings*501
600 bps
021200 bps
032400 bps*
044800 bps
BPS**
059600 bps
06
19200 bps
0728800 bps
08
38400 bps
09
115200 bps?BPS Output example BP,0300
No output*
EC:**
01
With output?EC Output example EC,0000
Command mode
PR:**
03
Continuous output mode*?PRT Output example Pr,0000
No address*
DAD**
01~99
Set to address 00 to 99?DAD Output example DAD,00* Factory setting*5

Send the command with the set value substituted for the ** part in the command field.

*6

After sending the "BPS" command, be sure to send the "P" or "ON" command or unplug and plug in the
power supply.
The baud rate will be changed by resetting with the "P" or "ON" command or unplugging and plugging
in the power supply.

*7

The device address set with the rotary switch has priority. (Refer to "6-2. RS-485" for details.)

64

6-4-1. AK code and error code
If you set the error code output to "with output" (send "EC:01" command to the weighing unit), it will always
respond to all commands sent from the PC or PLC. Confirming the returned code improves the reliability ofcommunication.
By setting the error code output to "with output", the weighing unit responds as follows.
When a command requesting various data is sent to the weighing unit, if the weighing unit cannot send
the requested data, it will send an error code (EC, Exx). If the weighing unit can output the requested data,
it will send the requested data.
When a command to control the weighing unit is sent to the weighing unit, if the weighing unit cannot
execute the command, it will send an error code (EC, Exx). If the weighing unit can execute the command,
it will send an AK code.
AK code is ASCII 06h code.
The following commands are processed by the weighing unit, and it sends the AK code not only when
the command is received, but also when processing ends. If processing does not end normally, theweighing unit will send an error code (EC, Exx).
“ON” command

Turns on the display (puts the weighing unit in weighing mode)“P” command

Switches between weighing state and standby state"R" command

Re-zeros“CAL” command

Adjusts sensitivity

Error code and description
Error code
EC,E01
EC,E02

EC,E03EC,E04EC,E06EC,E07
EC,E08Description and possible countermeasure
Undefined command error
An undefined command was found.
Check the transmitted command.
Not readyThe received command cannot be executed:
E.g.)

Q command was received when not in weighing mode.

E.g.)

Q command was received while re-zeroing.

Adjust the delay time to transmit a command.
Timeout error
With the command timeout setting, there was a wait time of approximately 1 second or
more while receiving command characters. Check the communication.
Character length error
The number of characters in the received command has exceeded the limit.
Check the command to transmit.
Format error
The description of the received command is incorrect:
E.g.) The number of digits of numerical values is incorrect.
E.g.) There are alphabet characters among the numerical values.
Check the transmitted command.
Parameter setting error
The value of the received command has exceeded the allowed value.
Check the setting range of the numerical value of the command.
Clock battery error
The clock backup battery has been depleted. Please adjust the date and time with the"DT:" or "TM:" command. Even if the clock backup battery is depleted, it works normally
as long as the weighing unit is powered with the AC adapter. If the error occurs
frequently, ask for repair.

65

Error code
EC,E11

EC,E20EC,E21

Contents and countermeasures
Stability error
Weighing value is unstable and therefore the “zero display”, “sensitivity adjustment”,
etc. cannot be executed. Check around the pan.
Improve the environment of the installation location to prevent factors such as vibration,
draft, temperature change, static electricity and magnetic field from influencing theweighing unit.
Send the "CAL" command or wait 5 seconds to clear the error.
Sensitivity adjustment weight error (heavy)
The weight is too heavy. Check the nominal value of the weight.
Send the “CAL” command or wait for 5 seconds to clear the error.
Sensitivity adjustment weight error (light)
The weight is too light. Check the nominal value of the weight.
Send the “CAL” command or wait for 5 seconds to clear the error.

66

Commands for controlling weighing data

Below is an output example when sending a command to control the weighing data.
This example is for RS-232C connection.
When connecting via RS-485, the control characters starting with "@" described in the example are not output.
Device address information is added to other data according to the device address setting value.
Also, in this example, the error code output is set to "with output" (send "EC:01" command to the weighingunit) so that the AK code is output.

Example of "R" command
External device side
(PC, PLC, etc.)

Time

The weighing unit side
S

T

,

+

0

0

0

0

.

0

1

2

˽

˽

g

CR LF

˽

g

CR LF

"R" commandR

CR LF
AK CR LF

Command received(Stops the data output)
Waiting for re-zero stability (processing)
AK CR LF
S

T

,

+

0

67

0

0

0

.

0

0

0

˽

˽

: Space,

ASCII 20h

CR

: Carriage return,

ASCII 0Dh

LF

: Line feed,

ASCII 0Ah

AK

: Acknowledge,

ASCII 06h

Example of "CAL" command
External device side
(PC, PLC, etc.)

Time

The weighing unit side
S

T

,

+

0

0

0

0

.

0

1

2

˽

˽

g

CR LF

˽

˽

˽

˽

˽

˽

CR

"CAL" command
C

A

L

CR LF
AK CR LF

Command received

U

S

,

˽

˽

˽

˽

˽

@

R

E

;

0

0

CR

LF

@

D

P

;

0

0

0

CR

@

S

T

;

0

0

CR

LF

@

C

H

;

˽

˽

˽

˽

˽

˽

˽

˽

CR

LF

“PRT” command

@

C

H

;

˽

C

A

L

˽

0

˽

˽

CR

LF

P

Waiting for zero setting

R

T

CR LF

AK CR LF
@

S

T

˽

LF

*1

Command received
;

0

4

CR

LF

Waiting for zero stability (processing)
AK CR LF

Process completed

@

R

E

;

0

0

CR

LF

@

D

P

;

0

0

0

CR

@

S

T

;

0

0

CR

LF

@

C

H

;

˽

˽

˽

˽

˽

˽

˽

˽

CR

LF

@

C

H

;

˽

˽

2

0

0

0

˽

˽

CR

LF

LF

*1

Displays the weight value
Place the weight"PRT" command
P

R

T

CR LF
AK CR LF@

S

T

Command completed
;

0

4

CR

LF

Continued on next page*1

For RS-485, the data is output without "@CH;".
˽

68: Space,

ASCII 20h

CR

: Carriage return,

ASCII 0Dh

LF

: Line feed,

ASCII 0Ah

AK

: Acknowledge,

ASCII 06h

LF

Continued from previous page
External device side
(PC, PLC, etc.)

Time

The weighing unit side
Weighing the weight (processing)
AK CR LF

After the weight isremoved, performs
re-zeroing andreturns to weighing
mode.

Process completed

@

R

E

;

0

0

CR

LF

@

D

P

;

0

0

0

CR

@

S

T

;

0

0

CR

LF

@

C

H

;

˽

˽

˽

˽

˽

˽

˽

˽

CR

LF

@

C

H

;

˽

E

N

D

˽

˽

˽

˽

CR

LF

˽

˽

˽

CR

LF

0

0

0

˽

˽

*1

Waiting for re-zero stability

@

R

E

;

0

0

CR

LF

@

D

P

;

0

0

0

CR

@

S

T

;

0

0

CR

LF

@

C

H

;

˽

˽

˽

˽

˽

@

D

P

;

0

0

8

CR

LF

AK CR LF
S
*1

LF

T

,

LF

Process completed
+

0

0

0

0

.

g

CR LF

For RS-485, the data is output without "@CH;".

69

˽: Space,

ASCII 20h

CR

: Carriage return,

ASCII 0Dh

LF

: Line feed,

ASCII 0Ah

AK

: Acknowledge,

ASCII 06h

Example of "SMP" command
External device side
(PC, PLC, etc.)

Time

The weighing unit side
S

T

,

+

0

0

0

0

.

0

1

2

˽

˽

g

CR LF

.

0

1

˽

˽

g

CR LF

"SMP" command
S

M

P

CR LF
AK CR LF
S

T,

Command received
+

0

0

0

0

0

Example of the "R" command when the precision range is used
External device side
(PC, PLC, etc.)

Time

The weighing unit side
S

T

,

+

0

0

0

0

.

0

1

2

˽

˽

g

CR LF

2

.

3

4

˽

˽

g

CR LF

The weight value exceeds 510 g.
S

T

,

+

0

0

5

1

"R" commandR

CR LF
AK CR LF

Command received(While waiting for re-zero stability, data output is stopped.)

AK CR LF
S

T,

Process completed
+

0

0

0

0

.

0

0

0

˽

˽

g

CR LF

0

0

0

1

.

2

3

4

˽

˽

g

CR LF

Place a sample.
S

T

,

+

˽

70

: Space,

ASCII 20h

CR

: Carriage return,

ASCII 0Dh

LF

: Line feed,

ASCII 0Ah

AK

: Acknowledge,

ASCII 06h

7.

Maintenance7-1. Care
When cleaning the weighing unit, wipe it with a lint free cloth that is moistened with warm water and amild detergent.
Do not use organic solvents or chemical wipes.
Do not disassemble the weighing unit.
Use the original packing material for transport.
The dustproof and waterproof performance of the weighing unit means waterproof for daily use, so theweighing pan can be washed with water while installed. Note that if the weighing unit is submerged inwater or used in such a way that water pressure is applied to the bottom of the weighing unit body, water
may enter the interior of the weighing unit.
When using the weighing unit in a dustproof / waterproof environment, make sure that the AC adapter
plug is fully inserted into the AC adapter input jack and that the RS-232C cable is attached.
When not using the AC adapter or RS-232C cable, the rubber cap of each packing ring must be closed.
When cleaning with hot water, condensation may occur inside the weighing unit and the weighing unit
parts may deteriorate. Also, be careful not to let water vapor get inside the weighing unit.

Rear of the weighing unit
Indicator lights

AC adapter input jackAC adapter plug

RS-232C cable
Attach the arrow (side up.

Ground terminal

Rubber caps

Weighing unit bottom
Air hole

Front

Back

71

)

8.

Troubleshooting

8-1. Checking the weighing unit performance and environment
Since the weighing unit is a precision instrument, in some cases it may not be able to measure correct values
due to adverse effects of the measurement environment or measurement method.
If repeatability is poor when the sample is loaded and unloaded several times, or if the weighing unit seems to
be operating abnormally, check the following items.
"Frequently Asked Questions" and answers to them are also posted on our website (https://www.aandd.jp/).
If the problem persists after checking each item, contact your local A&D dealer for repair.

1. Checking that the weighing unit performs properly
As a simpler test, check the repeatability with an external weight. Be sure to place the weight in the centerof the weighing pan. Pay attention to the airflow and be sure to cover the weighing unit if necessary.
As a precise test, check the repeatability, linearity, weighing value, etc. with a weight of a known weight.
When the weighing unit is incorporated into a system, remove the weighing unit from the system. Place it
on a solid table and perform checking.
When proper performance of the weighing unit is confirmed, refer to “ 2-3.Precautions when incorporating
into a system ” to set up the installation site.

2. Checking that the measurement environment and method are appropriate
Check the following check items. Also, refer to "2-3.Precautions when incorporating into a system".

Operating environment
Is the weighing table solid enough?
Is the operating environment free from vibration and drafts? Note that covering the weighing unit can
reduce the effects of draft.
Is there a strong electrical or magnetic noise source such as a motor near the weighing unit?
Is there a heat source near the weighing unit?

Weighing method
Is the exclusive weighing pan or jig set so that it does not touch other parts of the weighing unit main
body? (Is the weighing pan installed correctly?)
Do you always set the weight value to zero by sending the "R" command before placing your sample on
the weighing pan?
Do you place your sample in the center of the weighing pan?
Did you connect the weighing unit to the power supply for at least 30 minutes to warm up before weighing?
If the weighing unit wobbles on the installation surface, the weighing data may become unstable or the
repeatability may become poor. Improve such installation conditions by securing the weighing unit or
reducing the vibration to the weighing unit.

Sample and container
Is the sample free from moisture absorption or evaporation?
Are the temperatures of the sample and the container acclimatized to the ambient temperature? Refer to“2-3.Precautions when incorporating into a system”.
Is the sample free of static electricity? Refer to "2-3.Precautions when incorporating into a system".
Is the sample a magnetic material (iron, etc.)? Care must be taken when weighing magnetic materials.
Refer to "2-3.Precautions when incorporating into a system".

72

8-2. Asking for repair
If the weighing unit needs service or repair, please contact your local A&D dealer.
The weighing unit is a precision instrument. Use much care when handling the weighing unit and observe thefollowing when transporting the weighing unit.
・ Use the original packing material.
・ Remove the weighing pan from the weighing unit.

73

9.

Specifications

Weighing capacity
Maximum display
Readability
Repeatability(Standard deviation)
Linearity

Stabilization time inseconds*2

Data refresh rate
I/O
sectionAD-4212F-6203D

AD-4212F-10202

AD-4212F-22001

6200 g / 510 g*
6200.08 g / 510.009 g
0.01 g / 0.001 g

10200 g10200.84 g
0.01 g

22000 g22008.4 g
0.1 g

0.01 g / 0.002 g

0.01 g0.1 g

1±0.02 g±0.03 g±0.2 gWhen 0.001 g
1.3
0.5
0.5
readability isseconds
0 to 300 g
0 to 300 g
seconds
seconds*3
selected
When 0.01 g
1.0
300 to1.0
300 to1.0
readability isseconds
10200 gseconds
22000 gseconds
selected
Approx. 3 times/second to 100 times/second (about 13 times/second*)

RS-232C
RS-485

Sensitivity drift
Operating temperature /humidity range
Allowable eccentric loadUsable weight value

Bidirectional, 600 to 115200 bps (2400* bps)
±2 ppm/°C (10 °C to 30 °C / 50°F to 86°F)

5 °C to 40 °C (41°F to 104°F), 85 %RH or less (no condensation)
1 Nm or less (based on the plate center)
50 g, 100g, 200 g,
500 g, 1000 g, 2000 g,
1000 g, 2000 g, 5000 g,
300 g, 500 g, 1000 g,
3000 g, 4000 g, 5000 g*,
10000 g*, 20000 g
2000 g*, 3000 g, 4000 g,
6000 g, 7000 g, 8000 g,
5000 g, 6000 g
9000 g, 10000 g

External
dimensions
The
Weighing
weighing
panunit
dimensions
mass
Unit display mode
Power (AC adapter)
Dustproof and waterproof±3 ppm/°C (10 °C to
30 °C / 50°F to 86°F)

80 (W) × 320 (D) × 128 (H) mm
70 × 70 mm
Approx. 3.2 kgg
AC adapter
Confirm that the adapter type is correct for the local voltage and power
receptacle type.
Power consumption: Approx. 30 VA (supplied to the AC adapter)
IP65 compliant* Factory setting*1

Smart range (Refer to "4. Smart Range Function".)*2

When the stability band width is set to ±3 digits and FAST is selected for the weighing speed (response
characteristics) in a good environment.

*3

Specifications when using the precision range

749-1. External dimensions

AD-4212F-6203D / AD-4212F-10202 / AD-4212F-22001
Pan support dimensions(Intervals:90°)*1

Hole

233

When securing,use M6.

Connector protrusion
Approx.

Air hole

Unit: mm
*1

The screw holes to secure the exclusive weighing pan created by customers.

7510. Peripherals (sold separately)
10-1. Accessories
AX-KO3590-200

RS-232C cable2m

AX-KO3590-500

RS-232C cable5m

AX-KO3590-1000

RS-232C cable

10 m

AX-KO7522-500

RS-485 cable(discrete wire)

5m

AX-KO7622-200

RS-485 cable(for daisy chain)

2m

AX-USB-9P-EX

USB converter cable set

USB converter (D-Sub9 pin - USB)
RS-232C cable (D-Sub9 pin - D-Sub9 pin)*1*1 The AD-4212F series does not use this cable.

AD4212F-29

RS-485 interface(for daisy chain)

10-2. Options
AD-8922A remote controller
Displays the weighing data of the weighing unit and remotely
operates re-zero and sensitivity adjustment.
Options for BCD output (AD-8922A-01), comparator output(AD-8922A-04), and analog output (AD-8922A-06) areavailable for AD-8922.

76

AD-8923-BCD/CC remote controller
Displays the weighing data of the weighing unit and remotely
performs re-zero and sensitivity adjustment.
The AD-8923-BCD can output data using BCD.
The AD-8923-CC can output data using CC-Link.

AD-8551R Modbus RTU converter
RS-232C output from the weighing unit can be converted toModbus RTU.

AD-8552 EtherNet/IP converter
RS-232C output from the weighing unit can be converted to
EtherNet/IP.

AD-1683 DC static eliminator
Main features
Static eliminator that prevents error which can be caused
when weighing samples are electrically charged.
Its direct-current system and plentiful ion content enableweighing without breeze, which is ideally suited for precisely
measuring powder and such.

AD-1684A electrostatic field meter
An indicator that measures how much the weighing sample
and tare, or the weighing unit's peripheral devices (e.g.
automatic weighing line) are electrically charged and shows
the result.
When electric charge is observed, it can be eliminated with
AD-1683 (Ionizer).

7711. Terms
Terms

Description

Stable display

The weighing value when the stabilization indicator is displayed.

Environment

Ambient conditions such as vibration, drafts, temperature, static electricity,magnetic fields, and the like that affect the weighing operation.

Sensitivity adjustment

Adjustment of the weighing unit so that it can weigh accurately.

OutputTo output the weighing data using the RS-232C or RS-485 interface.

Zero point

A weighing reference point or the zero display.
Usually refers to the value displayed when nothing is on the weighing pan.

Digit

(Readability) digit is the unit of digital resolution. 1 digit is the smallest display
value weighed by the weighing unit.

Tare

To cancel the weight of a container, paper, etc. not to be weighed that is placedon the weighing pan.

Re-zeroTo set the display to zero.

Repeatability(Standard deviation)

Variation in measured values obtained when the same weight is placed andremoved repeatedly. Usually expressed as a standard deviation.
E.g.) Standard deviation = 1 digit: This means that the measured values fall within±1 digit at a probability of about 68%.

Stabilization time

The time until the weighing value is displayed with the stabilization indicator shown
after a sample is placed on the weighing pan.

Sensitivity drift

An affect that a change in temperature causes to the weighing data. Expressedas temperature coefficient.
E.g.)
Temperature coefficient = 2 ppm/°C: If a load is 300 g and the temperaturechanges by 10 °C, the value displayed changes by the following value.
0.0002 %/°C x 10 °C x 300 g = 6 mg

IP65
dustproof andwaterproof rating

IP65 is a rating that indicates no ingress of dust and no harmful influence byreceiving direct jets of water from any direction. Note that the weighing unit will
not withstand strong direct water jets or being completely immersed in water.

78

THIS PAGE INTENTIONALLY LEFT BLANK.

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Telephone: [81] (3) 5391-6132
Fax: [81] (3) 5391-1566

A&D ENGINEERING, INC.

47747 Warm Springs Blvd, Fremont, California 94539, U.S.A.
Tel: [1] (800) 726-3364
Weighing Support:[1] (888) 726-5931

Inspection Support:[1] (855) 332-8815

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