AD-4530
Digital Indicator

5. FRONT PANEL
Do not touch the instrument immediately after it is disconnectedfrom the power supply.
To avoid electrical shock, do not touch the internal part of the
instrument within ten seconds after switching the power off.

1

Be sure to fasten all the screws completely.
Loose screws may come off during operation and a short circuit
may occur or measurement errors may occur due to noise.

45

2. EXTERNAL DIMENSIONS
AD -4 53 0
HI
+/-

ZERO

LO
ESC

HOLD

120
(139.1)HOLD

No part of this publication may be reproduced, transmitted,
transcribed, or translated into any language in any form by anymeans without the written permission of A&D Company, Limited.

7.5

96
LO

ZERO

HI
+/-

48

OK

LO HOLD
ESC
OZ

PRINT

Unit: mm

HOLD

1.1. Precautions Before Use
Avoid water and moisture.
Avoid vibration, shock, extremely high temperature and humidity,
direct sunlight, dust, and air containing salt or sulfurous gases.
Avoid places where inflammable gases or vapors are present.
The operating temperature is -10°C to +40°C.
A 100 VAC to 240 VAC power source is required. Use a stable
power supply free from sudden dropout or noise as they can cause
malfunctions. Avoid sharing the power line.
Keep cables away from power cables and other sources ofelectrical noise.
Connect only a non-inductive load of 10 kΩ or more to the analog
voltage output terminals.
Connect only a non-inductive load of 510 Ω or less to the analog
current output terminals.
When connecting long cables to the sensors, keep the cables
away from power cables and other sources of electrical noise
Do not connect the AD-4530 to the power supply before installationis completed. The AD-4530 has no switch to disconnect the power
supply.
Use shielded load cell cables.
Do not connect too many sensors. Otherwise, instrument damage
may occur.

Voltage requirement:
Power requirement:
Sensors:
Operating temperature:
Operating humidity:
External dimensions:
Panel cutout:
Separation:

100 VAC to 240 VAC +10%, -15% (50/60 Hz)
Approx. 10 VA
5 volt, 120 Ω, one sensor maximum
5 volt, 350 Ω, three sensors maximum-10 °C to +40 °C
Max. 85% RH (no condensation)
96 x 48 x 127.5 mm (W x H x D)
92 x 45 mm
Width: 120 mm or more

Mass:

Length: 70 mm or more
Approx. 290 g

Keys
PRINT

HOLD

1 2 3 4 5 6 7 8 9Load cell / Control input

Name
1

HI

2

OK

3

LO

4
5

DZ
HOLD

Description
Turns on when the measured value is greater thanthe upper limit (HI).
Turns on when the measured value is equal to or
greater than the lower limit and equal to or less thanthe upper limit.
Turns on when the measured value is less than thelower limit (LO).
Turns on when adjusting the digital zero.
Turns on when a value is being held.

Operation

Function
Press to proceed to upper limit value setting
mode.
When inputting a numerical value, press tochange the polarity.
Press to proceed to lower limit value setting
mode.
When inputting a numerical value, press tocancel the setting.
Press to turn the digital zero on.
When inputting a numerical value, press toshift the position of the blinking digit to theright or change the function group.

4.1. Options
AD-4530-200:
AD-4530-030:
AD-4530-040:
AD-4530-007:
AD-4530-237:
AD-4530-247:+

Press to turn the digital zero off.

Relay output
RS-485
RS-232C
Analog output
Relay output, RS-485, analog output
Relay output, RS-232C, analog output

Press to turn holding on or off.
When inputting a numerical value, press tochange the blinking digit or change thefunction parameter.
Press to output the serial data (print).
When inputting a numerical value, press toenter the setting.

Note: Only one option can be installed in the AD-4530 at a time.

4.2. Installing an option
1. Remove the two screws that secure the guide rail, and then remove theguide rail.
2. Remove the two screws that secure the case.
3. Pull the case out from the front panel (holding it as shown).
4. Remove unnecessary blank panels with nippers, etc.
5. Insert the option board at the position specified on the rear of the front
panel.
6. Reattach the case and guide rail by reversing the steps above.
Front panel

3

+

+

Press to proceed to calibration mode.

+

Press to proceed to function selection mode.
Press to proceed to selection mode incheck mode.

+* To change the digital zero operation, use the function Cf11 .
To protect against accidental operation, press
and hold+or pressfor more than 1 second to turn the digital zero on.

2
Option board
Case

5
2

5.4. Operation mode
- Upper / lower limit setting modeUse this mode to set the upper and lower limit of the comparator.
- Calibration modeUse this mode to perform zero and span calibration with an actual load.
- Function setting modeUse this mode for setting functions.
- Check modeUse this mode to confirm input and output operation.

Blank panel

43Disconnect from the power supply before removing the cover.
When removing the cover, make sure that the power is off.

HOLD

DZ

4. OPTIONS

1.2. Precautions During Use
The AD-4530 is a precision instrument that measures the microvolt
output from sensors. Prevent noise sources such as power lines,
radios, electric welders or motors from affecting the instrument.
Do not try to modify the AD-4530.
In all hold modes, the hold data is saved digitally, so there is no
drooping of the value displayed on the display panel or the analog
output. Note that the hold function is disabled when the AD-4530 isdisconnected from the power supply.

LO
ESC

5.3. Keys

3. GENERAL SPECIFICATIONS

1. BEFORE USE
The digital indicator is a precision instrument. Unpack the digitalindicator carefully and confirm that all items are present.

ZERO

5.2. Status indicators

A D- 45 30
HI

1WMPD4002283B

HI+/-

Displays a measured or set value. To set the decimal point position, usefunction mode Cf01. The display is composed of four seven-segment
indicators plus a minus sign.

92 +0.8-0*Maintain the intervals above when installing© 2015 A&D Company, Limited. All rights reserved.

This is a simplified instruction manual. For a detailed
instruction manual, refer to A&D’s website.
URL: http://www.aandd.jp/

LO5.1. Display

Panel cutout dimensions / Separation

The contents of this manual and the specifications of the
instrument covered by this manual are subject to change for
improvement without notice.

OK

MIN. 120

PRINT

DZ

RS-232C／RS-485 Analog output
5 4 3 2 1
3 2 1

44.6
45 +0.6-0

LO

MIN. 70

OK

94.8

Display3

A D -4 5 30
HI

Simplified Instruction Manual

HI

2

6. REAR PANEL
Relay output
4 3 2 1

Confirm the terminal numbers when making connections.
When making connections, confirm the terminal
numbers printed on the side of the terminal block andon the top of the indicator casing.

6.1. Connector function
6.1.1 AC input connector(1) AC
Connect the AC power cord.
The power requirement is 100 VAC to 240 VAC, 50/60 Hz.
When making connections,Switch off the power of all the instruments used
Keep cables away from power cables and othersources of electrical noise
6.1.2 Load cell / Control input connector
Load cell(1) SHLD
Connect the shielded cable of the sensor cable.
(2) SIGNegative signal input terminal for the sensors.
(3) SIG+
Positive signal input terminal for the sensors.
(4) EXCNegative excitation terminal for the sensors.
(5) EXC+
Positive excitation terminal for the sensors.
Control input(6) COM(7) LATCH(8) HOLD(9) ZERO

Input common terminal.
Inputs the latching signal for the function settingsand outputs.
Inputs the hold signal.
Inputs the zero correction signal.

6.1.3 Relay output connector (Option)(1) COM
Relay output common terminal(2) LO
Relay LO output terminal
Outputs LO when the measured value is less thanthe lower limit.
(3) OK
Relay OK output terminal
Outputs OK when the measured value is equal toor greater than the lower limit and equal to or lessthan the upper limit.
(4) HI
Relay HI output terminal
Outputs HI when the measured value is greaterthan the upper limit.
Comparator output
To prevent damage, do not exceed the rated capacities ofthe output relays.
To protect the output relays, use a varistor, CR circuits ordiodes.
6.1.4 Serial communication connector (Option)
In the case of RS-232C(1) IC
Connected internally (Do not use)(2) IC
Connected internally (Do not use)
(3) SG
Signal ground terminal(4) TxD
Sending terminal(5) RxD
Receiving terminal
In the case of RS-485 (Two-wire connection)(1) B
B terminal(2) AA terminal(3) SG
Signal ground terminal(4) B
B terminal(5) AA terminal* Each of the A and B connections has two terminals.
These terminals are connected internally and can be used for aterminating resistor or multi-drop connection.
6.1.5 Analog output connector (Option)(1) COM
Common terminal of the analog output(2) IOUT
Analog current output terminal(3) VOUT
Analog voltage output terminal

1

Guide rail

1
1

-1-

-2-

1
AC

-3-

-4-

7. CALIBRATION

Display

The AD-4530 measures voltage signals from sensors and displays thevalues. Calibration is performed so that it performs correctly.

C?e4

The decimal point (Cf01), minimum scale value (Cf02) and rated
capacity (Cf03) are set using function mode.
The zero point input voltage (Cf04), the span input voltage (Cf05)
and the display value for the span input voltage (Cf06) are set using
calibration mode.
Calibration setting by function mode is also available. (Digital
calibration)* During calibration, maintain a stable environment or a calibration
error may occur.
* You can confirm stabilization by confirming that the HOLD LED is on.
* The decimal point blinks to indicate that a number is being displayed,
not a measured value.

C?e5
C?e6
C?e7
C?e8

Cause
RemedyThe value of the calibration weight Use a proper calibration
exceeds the rated capacity.
weight.
The value of the calibration weight Use a proper calibrationis less than the minimum scale weight.
value.
The load cell sensitivity is Confirm the load cell
insufficient.
connection. Use a proper
calibration weight.
Voltage at span calibration is Confirm the load cellless than the zero point.
connection.
When adding a load of the rated Use a load cell with acapacity, the load cell output greater rated capacity or
voltage is too high.
set a smaller rated
capacity value.

8. FUNCTION MODE
Use function mode to set various functions and data. The set values are
saved in non-volatile memory and are maintained even if the power isswitched off.

7.1. Calibration Modes
In measurement mode, press+

to enter calibration mode.

8.1. Structure of Functions
Enter zero point calibration mode.

The first 2 digits of the Function No. are the function group. The last 2
digits of the Function No. are the function item.

Return to measurement mode.

Cf
f0
f1

7.1.1. Zero point calibration mode
With nothing on the load cell, wait for.

it to stabilize, and then press

Perform zero point calibration, andproceed to span calibration mode.
Cancel zero point calibration, andproceed to span calibration mode.
Hold to display the mV/V of the zero
point.

Span calibration

Calibration function
Basic function
Comparator function
Use this function to set the comparator operation.
f2
Analog output function
Use this function to set the output value of the analog voltage
output and analog current output.
f3,f4 Serial communication function
Use this function to set the RS-232C and RS-485.
* Set the zero point input voltage (Cf04), the span input voltage (Cf05)
and the display value for the span input voltage (Cf06) in calibration mode.
* Set the upper limit value (f101) and lower limit value (f102) incomparator mode.
* When setting a function, the decimal point blinks to indicate that a
number is being displayed, not a measured value.

8.3.3. Comparator

8.3. Function Items
8.3.1. Calibration (C function)
Function No.
Setting range

Function

Description

Decimal point position of the measured
Decimal point value
position
0:00002:00.00
1:000.0
3:0.000
Minimum division (d) of the measured value
Cf02
Minimum
1: 1
10: 10scale value 2: 2
20: 20
1 to 50
5: 5
50: 50Measurement
is possible up to the value of
Cf03
Rated
capacity this setting plus 8 d (8 minimum divisions)
1 to 9999
Decimal point position depends on Cf01.
Cf04
Input voltage Input voltage from the load cell at zero point-7.000 to 7.000 of zero point (Unit: mV/V)
Cf05
Input voltage Input voltage from the load cell at span(measurement point - zero point)of span
0.001 to 9.999(Unit: mV/V)
Cf01
0 to 3

Display value Display value for span (measurement point
Cf06
for input- zero point)-9999 to 9999 voltage of span Decimal point position depends on Cf01.
Range to enable zero adjustment by the
Zero
Cf07
adjustment ZERO key
Expressed in percent of the rated capacity
0 to 100range
with the calibration zero point as the center
Performed in combination with zero tracking
Cf08
Zero tracking width. (Unit: second)time
0.0 to 5.0
When 0.0, zero tracking is not performed.
Performed in combination with zero tracking
Cf09
Zero tracking time. (Unit: 0.1 d)
width
0.0 to 9.9
When 0.0, zero tracking is not performed.
Digital zero when turning power on
Cf10
Digital zero off
Power on zero 0:
1: Perform digital zero again
0 to 2
2: Use state when the power was turned off

Cf11
1 to 3After stabilization, press

Select the function group. (First 2 digits)

Zero operation

Save the setting in non-volatile memory, and then return tomeasurement mode.

Change the polarity.
Perform span calibration, andproceed to storing mode.
Storing mode

7.1.3. Storing calibration mode
Store the calibration zero, span and displayed
value acquired.
When calibration was not performed, data is notstored.

Function No.
Setting range

7000
D
100
D
0.0
D
0.0
D
0
P

1
P

+
1
P

Function

Description

f001
0000 to 1111

0000
(Binary)D

Disable key+

Enter the setting and return to function selection mode.

Ｄ

Digital input method (Change the blinking digit only)
Move the digit to be changed to the right.

Measurement mode

Change the value of the blinking digit.
Change the polarity.

Cause
RemedyVoltage at zero point calibration Confirm the rating andwas too far in the positive connection of the loadcell.
direction.
Voltage at zero point calibration
was too far in the negative
direction.

Default value
setting type

Each digit of the setting corresponds to a key
switch. Only available in measurement mode.
Key assignment 0: Enabled
0 0 0 0
1: Disabled

f002
0 to 11f003
0 to 4f004
0000 to 1111

7.2. Calibration Error

-5-

for

1: On / Off depends on the I/O input
2: Only digital zero on (no off)

Change the parameter.

Cancel the setting and return to function selection mode.

Store the data acquired, and return tomeasurement mode.

C?e3

3: On by pressing and holding
more than 1 second

8.2.2. Setting changing mode (Two methods)
Ｐ Parameter selection method (All digits blinking)* After the span calibration, the AD-4530 displays the mV/V value of the
span calibration for 3 seconds, and then proceeds to storing mode.

C?e2

7.000
D

8.3.2. Basic Functions

Enter setting changing mode.

Increase the value of the digit to be changed.

Display

Zero of the
I/O input

Select the function item. (Last 2 digits)

Select the digit to be changed.

Do not store the data acquired, andreturn to measurement mode.

0.000
D

8.2.1. Function selection mode.

Cancel span calibration, andproceed to storing mode.

7000
D

8.3.4. Analog
Function No.
Setting range

Function

f201-9999 to 9999
f202
-9999 to 9999
f203
-9999 to 9999
F204
-9999 to 9999

0V
output10 V
output4 mA
output20 mA
outputFunction No.
Setting range

Enter the setting and return to function selection mode.

Cutoff frequency
0: Off
6: 0.5 Hz
1: 2.5 Hz
7: 0.35 Hz
8: 0.25 Hz
Digital filter 2: 2.0 Hz
3: 1.5 Hz
9: 0.20 Hz
4: 1.0 Hz
10: 0.15 Hz
5: 0.7 Hz
11: 0.10 Hz
0: Off
1: Sample hold
Hold mode 2: Peak hold
3: Bottom hold
4: Bipolar peak hold
Function corresponds to an external input latch.
Setting and latch
0: Offassignment
Latch
0 0 0 01: On
Display value latch
function
Comparator latch
Analog output latch
Serial output latch

f301
2.4 to 38.4

Baud ratef302
7 to 8

Data bit
lengthf303
0 to 2

Parityf307
00 to 99
f401
f402
f403
f404
f405
00 to 7F

8.3.6. Error
Display
1
P

ad?e
eepe

0000
(Binary)
D

Cale
dt?e

Stop bit
Terminator

2.4: 2400 bps
4.8: 4800 bps
9.6: 9600 bps
19.2: 19200 bps
38.4: 38400 bps

1:CRLF
2:CR

ID that is added to the serial output
When setting to 0.0, the ID is not
added.

Unit character1
Unit character2
Unit character added to serial output.
Unit character3
Set with the hexadecimal ASCII code.
Unit character4
All characters after 00 are ignored.
Unit character5

Cause
The data cannot be
acquired from A/Dconverter.
Correct data cannot
be
read
from
EEPROM.
Calibration data error.
A setting value is outof range.

1
P
1
P
2
P
00
D
00
00
00
00
00
(Hexadecimal)
D

RemedyRepair is required.
Perform initialization.
If the initialization does not clear
the error, repair is required.
Perform calibration.
Check setting values and correct
if necessary.

.

to return the setting display.

-7-

2.4
P

2
P

Communication 1: Stream
mode
2: Manual print
Model No.

Default value
Setting type

7P

7:7 bits
8:8 bits
0:None1: Odd2: Even
1:1 bit
2:2 bits

When the measured value is displayed, the OK LED blinks and the display
can be set to zero by pressing
.
Press

-6-

4
P

f304
1 to 2f305
1 to 2f306
1 to 2

Description* If you want to confirm the measured value when setting the digital filter(f002), press

Cancel the setting and return to function selection mode.

Default value
setting type
0000
Measured value at DAV 0V output.
Decimal point position depends on Cf01.
D
1000
Measured value at DAV 10V output.
Decimal point position depends on Cf01.
D
0000
Measured value at DAI 4 mA output.
Decimal point position depends on Cf01.
D
1000
Measured value at DAI 20 mA output.
Decimal point position depends on Cf01.
D
Description

Functionto enter function selection mode.
Cf12
1 to 2

7.1.2. Span calibration mode
Add the actual load for span calibration to theload cell, and then input the value to be
displayed when the load is loaded.

1P

8.3.5. Serial Communication+

2: On with

* In all settings:
When it is on, Off with+

0P

1: On with

8.2.Key operation
In measurement mode, press

Default value
Setting type

Function No.
Default value
Function
Description
Setting range
setting type
f101
0000
Upper limit Upper limit value of comparator.
value-9999 to 9999
Decimal point position depends on Cf01.
D
f102
0000
Lower limit Lower limit value of comparator.
value-9999 to 9999
Decimal point position depends on Cf01.
D
0:Off
f103
2
Comparator 1:On when the measured value is notmodeP
0 to 2near zero
2:Always on
f104
Set the near zero range for comparator 0000
Near zeroD-9999 to 9999
mode.
Hysteresis direction
f105
2
Hysteresis 1:Upward 2-level judgment
mode
2:Upper / lower limit judgment
P
1 to 3
3:Downward 2-level judgment
f106
0.0
Hysteresis Set the hysteresis time by units of 0.1 seconds.
timeD
0.0 to 5.0
When 0.0, the hysteresis is not used.
f107
99
Hysteresis Set the hysteresis width to a two-digit value.
widthD
00 to 99
When 00, the hysteresis is not used.

-8-