AD-4430B
DIN Rail Weighing Module with BCD Output
Simplified Instruction Manual

Refer to the instruction manual on the A&D home page2.

General Specifications
6 W Max.

Load cell excitation voltage

5V 350 : sensor. Up to four sensors can be connected.

Operating conditions
External dimensions
Mass-10 °C to +50 °C, Max 85 %RH (no condensation)
35.3 × 110.0 × 101.3 mm (W×H×D)

URL: https://www.aandd.co.jp/
Main display
Accessory

1WMPD4002677E

DC 24 V +10%, -15%

Unit : mm

This manual describes how the product works and how to get the mostout of it in terms of performance. Read this manual thoroughly before
using the product and keep it at hand for future reference.
Product specifications are subject to change without any obligation on
the part of the manufacturer to notify of changes.
This manual is subject to change without notice at any time to improve
the product. No part of this manual may be photocopied, reproduced,
or translated into another language without the prior written consent of
the A&D Company, limited.
Do not attempt to repair, modify or disassemble the product. Doing so
will void the warranty.

35.3

(2.5)

100

28

4.3.

4.4.

Main display

Vent

4.4. Status Indicator
4.5. Key switches

The AD-4430B is a precision instrument that measures microvolt output from loadcell. Prevent noise sources such as power lines, radios, electric welders or motors
from affecting the instrument.
Do not disassemble the AD-4430B.

-1-

LED lights when indicating net value.
LED lights when the hold function operates.

Stable :LED lights when the current weighing value is stable.

Zero :

LED lights when the weighing value is center zero.

Operation

4.1. Power Supply
Connector+

Hook for DIN rail

Pull down when removing.
Vent
Power Supply Connector

4.2.

Sensor Terminals Of Load Cell

SIG- ............ The (-) input terminal of signal that is outputted from load cell.
SIG+ ............ The (+) input terminal of signal that is outputted from load cell.
EXC- ........... The (-) output terminal to load cell excitation voltage (-).
SEN- ........... The (-) input terminal for sensing input (-). (When performing the
4-wire connection, connect between EXC- and SEN-.)
SEN+ ............ The (+) input terminal for sensing input (+). (When performing the
4-wire connection, connect between EXC+ and SEN+.)
EXC+ ........... The (+) output terminal for load cell excitation voltage (+).
SHLD ........... Connect shield of load cell cable.

-2-.

Key switches

4.3. BCD Connector+24 V ........... DC +24 V terminal.
0 V ................ DC 0 V terminal.

Cautions During Use

5.1.2. Span Calibration

Function
The display switch between gross and net in factory setting.
"The zero key" to perform the zero adjustment in weighing mode.
The key to change a selected item or move a flashed figure.
"The tare key" that displays zero for net weighing.
The key to select parameter or increase number in setting mode..
Press the key to turn on the display in standby (OFF mode).
Press and hold the key to turn off the display in weighing mode.
In the setting mode, this key to store new settings. "the enter key".
Function key can be selected the function and use in weighing mode.
The return key or "the escape key" in setting mode.
Proceeds to function mode in weighing mode.

+

Proceeds to check mode in the function mode.

+

Proceeds to calibration in standby (OFF mode).

4.6.

Step 5 Whenis displayed, press the
key. The current span mass is displayed. A
figure for the mass flashes. Specify a new value
and
keys.
for the mass using the
When canceling span calibration and returning
key twice.
to weighing mode, press the

Meaning
LED lights when indicating gross value.

Hold :

4.2. Sensor Terminals
Of Load Cell

4.1.

Step 4 Confirm that the
LED is lit and press the
key. Thenis displayed for 2
seconds. When canceling span calibration andreturning to weighing mode, press the
key twice.

This LED works by selected function at

Guide for DIN rail

Operation Mode

Function mode
(In weighing mode,
The condition of the AD-4430B can be updated and be stored.

+)

Check mode
The mode to check the AD-4430B.

+)

Calibration mode
(When display is turned off,+
The mode to calibrate zero point and span of the AD-4430B using span mass.

)

5.

key

Calibration
mode

5.1.1. Zero Calibration
Step 3 Press the
key to display.
When skipping zero calibration, press the
key and proceed to step 5.

Net :

4.5.

key

Step 1 When turning off the display, press and hold the
key and press thekey ( +
key).
of calibration mode is displayed.
Then
key to enter calibration mode.
is displayed. When returning toweighing mode, press the
key.

Status Indicator

Gross :
36.1

Span Calibration using Mass

Preset a unit, decimal point, minimum division and weighing capacity in function
mode. The span calibration is performed using mass of the weighing capacity.
ſ Whenand a number are displayed, an error has occurred. Refer to"Calibration Errors" for details.
ſ The flashing decimal point means "no weighing value".
ſ Before the calibration, turn on the AD4430B more than 10 minutes so as to
avoid temperature drift (change).

Step 2 Press the

BCD Connector

LED1.1. Installation and Precautions
Before use, confirm the following articles for safe operation.
Avoid vibration, shock, extremely high temperature and humidity, direct sunlight,
dust, splashing water, air containing salt or corrosive gases, places where
inflammable gases are present.
The operating temperature is -10°C to +50°C (14°F to 122°F).
Ground the module.
Keep cables away from power cables and other sources of electrical noise.
Use a stable DC24 V power source that does not include step down voltage
and noise.
Do not share the earth ground line and power line with other electrical power
equipment.
When extending the load cell cable, separate it from the power cable andelectrical cables with much noise.
Do not turn on the module until installation is complete. The module is not
equipped with a switch to turn off.
After the installation is complete, take off the protective cover prior to turning on
the AD-4430B.
Use a shielded load cell cable.
Do not connect more sensors than the allowable number noted in thespecifications.

Push buttons when connecting andremoving the cables.

Power line

4. Panels

Cautions

Accessory connector for power
supply terminal.

39.4

5.5 34.5

All rights reserved.
3-23-14 Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013, JAPAN
Telephone: [81] (3) 5391-6132
Fax: [81] (3) 5391-6148.

1.2.

Load cell cable

1.3
20°

110

Push buttons when connecting andremoving the cables.

The circuit of BCD is isolated fromthe D.C. power supply and loadcell circuit.
Supply D.C. +24 V between BCD
PWR+24V terminal and COM
terminal.

 ©2018

1.

Pole crimp terminal

Approximately 180 g
The monitor displays measurement data and settings with 7
segments of 5 digits and negative sign. The decimal point is
specified at the function table.
Power connector FMC 1.5/2-ST-3.5

3. External Dimensions

This Manual

5.1.

Connections
When connecting and removing the cables, push the buttons with a driver etc.
We recommend use of pole crimp terminals for the tips of cables.

Voltage requirement
Power requirement(In function mode,

Calibration

The AD-4430B measures the voltage of the load cell and displays it. Calibration is thefunction used to adjust theAD-4430B so that the signal from the load cell is properly converted to mass.
Specify decimal point (), minimum division () and weighing capacity) in function mode.
()", " input voltage at span calibration ()""input voltage at zero calibration (and "mass value against input voltage at span calibration ()" can be changed bythe "span calibration using mass ()" in calibration mode. These items can be also
inputted using "digital span" in function mode.
ſ Perform stable measurement in the calibration to prevent measurement error.
ſ During a stable measurement, theLED lights.
ſ The decimal point flashes in calibration mode.
-3-

key
Zero
calibration
LED
key
In measuring
Spancalibration
key
Examplekey
ExamplePlace mass

Step 6 Place the mass on the weighing pan.
Confirm that the
LED is lit and press the
key. Thenis displayed for 2
seconds.

LED
key
In measuring

Step 7 Whenis displayed, remove the massfrom the weighing pan. When repeating spancalibration, press thekey.

Removemass

Step 8 Press the
key. Thenisdisplayed and calibration data is stored in the
nonvolatile memory of the AD-4430B.

Key to store data

Step 9 Press thekey

key to return to weighing mode.

5.2.

Calibration Errors

Display

Cause
Resolution (Weighing
capacity / minimum division)exceeds the limitation.
The voltage in zero
calibration is too large.
The voltage in zero
calibration is too small.

Treatment
Make the minimum division greater or make theweighing capacity smaller. The specified value
depends on specifications of the weighing system.
Check the load cell rating and connection. Whennothing is wrong with the rating and connection,
adjust the load cell output. When the load cell or
A/D converter may be the cause of error, confirm
this by using the check mode.

Mass value exceeds theweighing capacity.
Use an appropriate calibration weight andMass value is too light for calibrate again.
calibration.
Sensitivity of the load cell is Use a load cell with higher sensitivity or maketoo small.
the minimum division greater.
The polarity of the load cell
Check the load cell connection.
output is reversed.
The output of the weighing Use a load cell with a greater rating or make thecapacity is out of range.
weighing capacity smaller.

-4-5.3. Digital Linearization (6.2.2.

)

Digital linearization is the non-linearity compensation function that can rectify or
reduce linearity deviation between zero point and weighing capacity.
Up to four points can be specified except zero. (Refer to)Relationship of points : Zero =<<<<The high-order correction curve is used so that zero point and individual points
are arranged in a straight line.
Digital linearization includes span calibration.
ſ Whenand a number are displayed, an error has occurred. Refer to"Calibration Error" for details.
ſ A flashing decimal point means "no weighing value".
ſ Before calibration, turn on the AD4430B more than 10 minutes so as to avoid
temperature drift (change).
Step 1 When turning off the display, press and holdthe
key and press thekey (+key). Thenof calibration mode
is displayed. Press the
key to display.
Step 2 Press the
key to selectpress thekey to enter digital
linearization.
Step 3

and

key

key

Step 5 When displaying,
press thekey to selecta mass value. Specify it using
the
and
key.
Step 6 Place the mass on the pan.
While
LED is displayed,
key to storepress thethe weighing value.
Then
is displayedfor 2 seconds.

Digitallinearization
Zero pointof the zero point is displayed.

Step 4 Place nothing on the pan.
LED is displayed, press theWhile
key to store the weighing value.
is displayed for 2 seconds.
Then

LED Stablekey
In measuring
Input No.
key
Examplekey

At each point,
perform thesameoperation andmeasurement.

ExamplePlace mass
LED Stablekey
In measuring

Step 7is displayed. Repeat the same
operation as Step 5 and Step 6 at thesecond point.

Step 8is displayed. Repeat the same
operation as Step 5 and Step 6 at the third
point.

Step 9is displayed. Repeat the same
operation as Step 5 and Step 6 at the fourth
point.

Step 10is displayed. Press the
key
to store new parameters into FRAM and.
display

Input No.
The same as step 5,6
Input No.
The same as step 5,6
Input No.
The same as step 5,6
Key to store datakey
Removemass

Step 11 Press the
key to return to weighing mode.
Remove all of mass from the pan.

6.

Function Mode (Function List)

The function mode stores parameters to control the weighing module.
The parameters are stored even without power supplied.

6.1. Outline
Types of Functions........... Calibration function........... Linearity adjustment function............ Basics function........... Hold function........... BCD output function

6.2.

Operation

6.2.1.
Select Modes Under Function Mode..............Selects a type of select mode (3 upper figures)..........Enters a selected mode.
..............Selects an item under the selected mode (2 lower figures)..........Enters the item.
..........Stores parameters and returns to weighing mode.

-5-D

6.3.2.

Parameters Selection And Digital Parameters

Linearity Adjustment Function (6.3.4.

)

Type of parameter selection ( all figures flashing).......... Selects a parameter.
...... Activates (store) parameter and returns to select mode.
...... Deactivates parameter and returns to select mode.

Item
Range

The type to change value ( figure flashing )......... Moves the flashing figure.
.......... Changes the value of the flashing figure.
...... Activates (store) value and returns to select mode.
...... Deactivates value and returns to select mode.

7.0000 to Linear-zero
7.0000Linear 1
0 to 99999 Mass value

Input voltage for linear-zero input. [mV/V]

Linear 1
0.0000 to
9.9999 Span voltage
Linear 2
0 to 99999 Mass value

The span voltage between linear-zero and linear 0.0000
1 input. [mV/V]
D

6.3.

0 to 5Function Tableſ Decimal point depends on.

Item Name

Default
Type
0P

Descriptions

Number of input Number of adjustment point. If 0, 1 or 2 ispointsselected, digital linearization is not used.

0.0000D

The mass value for linear 1 input.
Decimal point depends on.

0D

The mass value for linear 2 input.
.
Decimal point depends on

0
D

)

0.00
to 9.99

Averagetime

Time to calculate the average. [sec.]
0.00 : Not used

0.00
D

0.00
to 9.99

Start wait
timeTime to wait before commencing hold or
averaging. [sec.]

0.00
D

0 to 2
0 to1
0.00
to 9.99

Descriptions

Condition of Condition for starting the hold or averaging.
automatic 0: Not used
2: Above the near-zero range
1: Above the near-zero range, and stable
start
Release using Release when control input is falling.
control input 0: Do not release
1: Release
Ԭ2
Release time

Release after a set amount of time has
passed. [ sec.] 0.00 : Continue

6.3.1.

Linear 3
0.0000 to
9.9999 Span voltage
Linear 4
0 to 99999 Mass value

The span voltage between linear-zero and linear 0.0000
3 input. [mV/V]
D

Release when fluctuation from the holding
Release using
0 to 99999 fluctuation range value exceeds a set value. Decimal point
depends on. 0 : Continue
Release when the weighing value is in the
Release atnear-zero range.
0 to 1near-zero
0: Do not release.
1: Release.

The mass value for linear 4 input (Full scale).
Decimal point depends on.

6.3.5.

Linear 4
0.0000 to
9.9999 Span voltage

The span voltage between linear-zero and linear 0.0000
4 input (Full scale). [mV/V]
D

Calibration Function ()

Item Name

Descriptions

Decimal point
0 to 0.0000
position
Minimum division
1 to 50(A scale / digit)

Default
Type
0
P
1
P

Decimal point position of value.
0 0.0 0.00
0.000
0.0000
Minimum division of value.
1
2
5
10
20
50
Measurement can be displayed up to +8 digits
70000(8
scales)fromcapacity.
Decimalpoint
Weighing
capacity
1 to 99999
D
depends on.
The range that thekey (zero key) works.
2
Zero range
0 to 100
Deviation from the calibrated zero point [%].
D
0.0
for zero tracking [sec.]
0.0 to 5.0 Zero tracking time Used withD
0.0
for zero tracking [digit]
0.0 to 9.9 Zero tracking width Used withD
Stability detection
1.0
Used
with
for
stability
detection[sec.]
0.0 to 9.9timeDStability detection
2
for stability detection [digit]
Used with0 to 9width
P
Tare and zero
The adjustment when value is unstable.
1adjustment when 0: Disables both functions.
0 to 1P
unstable
1: Enables both functions.
Tare when the Tare when the gross weight is negative.
1
gross weight is 0: Disables tare.
0 to 1P
negative
1: Enables tare.
Output when
Serial output when overflow and unstable.
1
overflow and
0: Disables output.
0 to 1P
unstable
1: Enables output.
Judgment when the negative gross is exceeded.
Exceeding negative 1: Gross < -99999
1
1 to 32: Gross < -capacity
gross weightP
3: Gross < -19 digit
Exceeding negative Judgment when the negative net is exceeded.
1
1 to 2
net weight
1: Net < -99999
2: Net < -Capacity
P
Clear the zero Select to clear the zero value.
1
0 to 1value
0: Disable
1: EnableP
Zero setting when When turning power on,
0
0 to 1
power is turned on 0: Disable
1: Enable
P

6.3.3.
Item
Range

0000
to 1111

0 to 75 to 20

Basic Function (Key switch
disabledisplay

0 to 16

Digital filter

Input voltage at
zero

Input voltage of the zero point [mV/V]

0.0000D

1 to 3

Hold function

0.0001 to9.9999Input voltage at
span

Input voltage of the full scale [mV/V]

3.2000D-99999 to
99999

Near-zero

32000
D

1 to 2

Calibration weight Mass value to equivalent to span input) Decimal point depends oncorresponding to voltage. (input voltage at span.
Gravity acceleration
Gravity acceleration of the place where
9.7500 toof place of
calibrating the module. [m/s2]
9.8500calibration
9.7500 to
9.85000 to 1

Gravity acceleration Gravity acceleration of the place where usingof place of use the module. [m/s2]
Disable hold

0: Enable-6-

1:

Disable9.8000D
9.8000D
0P

0D

Default
Type

Descriptions
Figure corresponds to each key (switch).
These are enabled at weighing mode.
Figure4 fig.
3 fig.
2 fig.
1 fig.

Parameter 0: Enable
1: Disable
0: None
4: Momentary switch
1: Print command
5: Display exchange
6: Tare clear
key function 2: Hold
3: Alternative switch 7: Zero clear(depends on
Display refresh
20 times/s
10 times/s
5 times/s
rate

0 to 90D)

Item Name-7.0000 to
7.0000

1 to 99999

The mass value for linear 3 input.
Decimal point depends on.

0000
BinarynumberD

5P)

0: None
1: Zero tracking in progress
2: Alarm (Zero range setting error, over)3:
key status
4: Zero band
5: HI output (Over the upper limit value)
6: OK output (Between upper and lower limit values)
7: LO output (Below the lower limit value)
8: User input 1
9: User output 1
Selects a cutoff frequency.
0: None
6: 20.0 Hz
12: 2.8 Hz
1: 100.0 Hz
7: 14.0 Hz
13: 2.0 Hz
2: 70.0 Hz
8: 10.0 Hz
14: 1.4 Hz
3: 56.0 Hz
9: 7.0 Hz
15: 1.0 Hz
4: 40.0 Hz
10: 5.6 Hz
16: 0.7 Hz
5: 28.0 Hz
11: 4.0 Hz
1: Hold immediately
2: Peak hold
3: Averaging hold
The reference value for near-zero.
Decimal point depends on.

Comparison mass at
1: Gross weightnear-zero

20
P

0
P

15
P

1
P
10
D

2: Net weight

1
P

Reference value for the upper limit.
-99999 to Upper limit value
Decimal point depends on
.
99999

10
D

Reference value for the lower limit.
-99999 to Lower limit value
Decimal point depends on.
99999
Comparison mass of1:
Grossweight2:
Netweight1 to 2upper and lower limit
Output logic of upper The logic of the comparator function output.
1 to 2
1: Positive logic
2: Negative logic
and lower limit

-10
D

-7-

Default
Type

Item Name

Linear 2
0.0000 to
9.9999 Span voltage
Linear 3
0 to 99999 Mass value

Item
Range

The span voltage between linear-zero and linear 0.0000
2 input. [mV/V]
D

Hold Function (

Item
Range

), the span input voltage (), mass forspan input voltage () are revised in calibration mode.
ſ If pressing the
key while displaying the digital filter (), the current weighing
key again to return function mode.
value can be monitored. Press theſ The input voltage of the zero point (

key
key

P

BCD Output Function (

0
P
1
P
0.00
D
0
D
0
P

)

Default
Type
1: Weighing value 3: Net weight
Ԭ1
Data
1
1 to4
outputting 2: Gross weight 4: Data specified at BCD input
P
Data transfer 1: Stream
3: Manual printing
1
1 to3
mode
2: Automatic printingP
5 times/sec.
)
10 times/sec.
(Depends on
Data transfer
20
20 times/sec.
5 to1000
rate
P
100 times/sec.
1000 times/sec.
Output logic of
2
1: Negative logic
2: Positive logic
1 to2
data transfer
P
Output logic of
2
1: Negative logic
2: Positive logic
1 to2
negative signP
Output logic
2
1: Negative logic
2: Positive logic
1 to2
of status
P
Output logic
2
1: Negative logic
2: Positive logic
1 to2
of strobeP
0: None
1: Clear zero
Input
3
selection 2: Clear tare
0 to5
3: Changing between gross and net
P
Input(17) 4: Print command5:
key
0: None
1: Stabilization
2: During tare
3: Zero band
4: Hold busy stateOutput5: HI output (Over upper limit)
1
selection 6: OK output (Within upper and lower limits)
0 to12P
Output(33) 7: LO output (Under lower limit)
8: During operating weighing (On)9: During operating weighing (1 Hz)
10: During operating weighing (50 Hz)
11: Alarm (Zero correction error and tare error)
12: Busy
key
Item
Range

Descriptions

Item Name

Ԭ1: GRS/NET(18) for input
Ԭ2: HOLD(34) for input

1
P
1
P
-8-