Strain Amplifier

Dynamic Strain Measuring Instruments
AC Bridge Type : AS3503 / AS3603 / AS3703 / AS3803 / AS3903
DC Bridge Type : AS2503 / AS2603

New features added on superior basic performance !
Achieved more accurate and reliable measurements !
The new AS3000 Series of Strain Amplifiers inherit the excellent performance of the previous models
equipped with unique Bridge Check function, Cable Length Compensation function, and Noise Resistantdesign, and newly added Auto-Range function and E-terminal Switching function, enabling shortermeasurement preparation time, highly accurate and high-quality strain measurement. While maintaining
compatibility with the previous model, operability has been greatly improved, and settings for each function
have been simplified for ease-of-use. Including a noise resistant type, two models with a response frequencyof 5 kHz have been added, resulting five models in the lineup .

■AC Bridge Type for General-purpose - AS3503 / AS3603 / AS3703

Isolated between input/output andpower supply system! Aids strain
measurement with reliable quality!

The AS3503/AS3603/AS3703 are AC strain amplifiers withhigh sensitivity, high stability and low noise, and suitable formeasurement using strain gauges.
AS3603 responsivity: DC to 2 kHz, AS3503 responsivity: DC to
5 kHz, AS3703 responsivity: DC to 10 kHz. All are highly stable
and low noise products. The balance circuit is equipped with
an automatic capacitance elimination function, allowing thecapacitance balance to be adjusted at any time.

Features● High sensitivity【AS3603】

Sensitivity ± 10 V output at ± 200 x 10 -6 strain input(when BV = 2 V)

● High responsivity●Various functions with excellent operability.

Bridge Check, Cable Length Compensation, Auto-range andAuto-balance can be executed by the touch of a button.

●Operable even under severe temperature conditions.

DC to 5 kHz【AS3503】
DC to 10 kHz【AS3703】

Temperature stability (Zero Point) Within ± 0.1 × 10-6 strain/ ° C
Temperature stability (Sensitivity) Within ± 0.02%/ ° C
Operating temperature range: -10° C to 50° C■AC Bridge Type with Noise Resistant - AS3803 / AS3903

Isolated between input/output and power
supply system! Noise-resistant design for harshenvironments!

Features

The AS3803/AS3903 are isolated between input/output and power supply
systems, respectively, and are equipped with Noise-resistant circuits thatexcel in Common-mode Noise Elimination. As a result, it is possibe to reduce
the effect of noise generated by Common Mode Voltage from power lines,
high power equipment, etc., as well as noise generated when thyristors andpower transistors are opened and closed, and to obtain an output with ahigh SN ratio even in an environment where noise is easily mixed in. Suitable
for sites where Common Mode Noise is a concern, such as heavy electricalequipment, steel, heavy industry, plants, and railway vehicles.

● High sensitivity【AS3803】●Various functions with excellent● High responsivity●Operable even under severe temperature conditions.

Sensitivity ± 10 V output at ± 200 x 10-6 strain
input (when BV = 2 V)
DC to 5 kHz【AS3903】● Noise resistant design

Temperature stability (Zero Point) Within ± 0.1 × 10-6strain/ ° C
Operating temperature range: -10° C to 50° C

Uses our unique circuit method that is resistant to Common-mode Noise rejection.

2

operability.

Bridge Check, Cable Length Compensation, Auto-range, andAuto-balance can be executed by the touch of a button.

Dynamic Strain Measuring Instruments
Strain Amplifier AS3000/2000■DC Bridge Type of Wide Bandwidth AS2503 / Isolated Type AS2603

Excellent Non-linearity and High Response
Frequency ! High Precision DC Strain Amp!
The AS2000 series is suitable for high-precision measurementwith strain gauge transducers (load, pressure, torque, acceleration,etc.). The bridge power supply uses a constant voltage power
supply of 2 V to 10 V DC, and it has high voltage sensitivity andexcellent non-linearity, and so highly accurate measurement ispossible using a wide variety of strain gauge transducers.
The high response frequency of DC to 500 kHz【AS2503】also
enables high-speed strain measurement such as impacts.

Features● Wide bandwidth● Input/output isolation ideal for system applications

Response frequency DC to 500 kHz【AS2503】●High input impedance, excellent non-linearity【AS2603】

Isolation circuits are used between input/output and power supply.

Ensures input impedance 10 MΩ, non-linearity ±0.01%/ ●Loaded with various filters (high-pass/low-pass filters)
FS. Highly accurate measurement is possible even withtransducers with high resistance.【AS2503】●Can be used as a voltage amplifier.

Each setting key can be locked (except for CAL）

■Functions■ Bridge Check function

The "Bridge Check" function automatically detects
disconnections, shorts, and cable breaks ateach circuit of the bridge. The easy detection of
disconnected or short-circuited wires reduces
measurement preparation time and helps prevent
problems with the input section.

Bridge circuit

Disconnection

Cable-A
Cable-B
Cable-C

AS Series

Cable

Can be used as a high precision voltage amplifier with a maximum gainof 10,000 times【AS2503】or 5,000 times【AS2603】.

■ Cable Length Correction function

If the distance between the bridge circuit and theamplifier is long, the bridge voltage will drop due tothe conductor resistance of the cable. In the past,
remote sensing with a 6-core cable and compensation
by numerical setting (cable length, wire diameter, etc.)
were used. (Remote sensing was not possible with
the AC strain amp using 6-core cable.) This series of
products employs a unique automatic compensation
circuit to compensate for bridge voltage drops evenwith 4-core cables, enabling highly accurate strain
measurement.
Bridge circuit
BV-ę is supplied.

AmplifierApprox. 100 m
Supply BV

Cable-Dconventional
amplifier● Prevents erroneous operation(1) Automatic calculates bridge voltage attenuation rate due to cableմ conductor resistance.
(2) Supplies bridge voltage considering attenuation rate.

Original BV supplied
Disconnection occurred in cable D

Supply BV+ęDisconnection occurs between
bridge circuit A and bridge circuit B

AS Series

Disconnection* Cable Length Correction function can be set ON/OFF.
* Do not use with transducers that have a built-in output adjustment resistor.

■ Auto-range function

The “Auto-range function" automatically adjusts
the measurement range to the specified output
voltage when the calibration value set in the Internal
Calibrator is applied. Output voltage can be selectedfrom 5 V, 8 V, and 10 V. Even those unfamiliar withstrain amplifiers can easily prepare one for measurement.

■ E-terminal Switching function

The "E terminal switching function" switches the potential of the shield (E terminal) of the sensor cableto the [input COM] or the [GND] of the amplifier, andperforms shielding measures suitable for the installation environment of the sensor bridge.
If the E terminal is not connected to the chassis of a
tranbsducer, etc., setting the switch to [Input COM] will
increase the shielding effect and reduce noise intrusion.

3

■Displays, control knobs and rear panel● Bridge Voltage● Level Meter (for OUTPUT 1)

Display

Monitors Output 1 in high response with 17 dots LED.
When overscaling, either end of LED blinks(at-10V or +10V).for waring.

● Synchronization

Switching switch【AS3000 series】● Digital Monitor (for OUTPUT 2)● Input Connector

Connects the plug of the bridge box or transducer.

A F
B G E
C D

Monitors Output 2 with digital display as quick reference.
(Scale is adjustable with OUTPUT2 ADJ variable resistor.)

A
B

Switching input COM/GND● Auto-balance (Bridge Check -> Cable

Input
COM

Length Compensation ->Auto-range ->Auto-balance)

・One-touch diagnosis and conﬁguration of the entire input system.
・Check the connection of the bridge circuit, cable length correction,-Input

C -BV

E-SW

D

GND

and tuto balance is performed after setting range to be thespeciﬁed output votage when applied CAL seting value,
・Greatly promotes work saving in measurement by reducing
measurement preparation time and preventing wire breakage
problems.

+BV+InputE

chassisShieldThe chassis of the transducer, etc.
may or may not be connected to the E
terminal depending on the product.

● Range Setting● Setting Mode status (με) LED【AS3000 Series】● E-terminal Switch【AS3000 Series】

CAL Setting Mode: LED turns on / FNC Setting Mode:
LED turns off● Bridge Power Switch● SELECT knob

【AS3000 Series】: 2 VAC , 0.5 V【AS2000 Series】: 2 VDC , 3 V , 5 V , 9 V , 10 V

Long press: Switching between "CAL Setting Mode"and "FNC Setting Mode” (AS3000 Series)
Turn: Change of setting value
Push: Digit shift of setting value.

(AS2000 Series is a rotary switch)● Dual output● CAL/FNC Setting Value display

OUTPUT1 ±10 V ±5 mA
OUTPUT2 ±10 V ±10 mA (adjustable output)

CAL Setting Value (με) displayFNC Function Setting Value display● Output Voltage Adjustment (for OUTPUT2)Continuously variable output voltage from 1 to 1/10 times.

● Interface Connector● Low-pass/high-pass ﬁlters

Auto-balance, CAL Applied Voltage Control, DC Power
Input, and Synchronization Signal Connection【AS3000】● CAL Voltage Application switch■Selection of strain amplifier
Bridge power system

Recommended
sensors

Features
Noise
Sensitivity
Non-linearity
Response frequency
Product
Type
Model

〇
〇
×
×

×
×
〇
〇

AC Strain Amplifier (Isolated)

DC Strain Amplifier

General-purpose,
General-purpose,
General-purpose,
Noise-resistant,
Noise-resistant,
Wide bandwidth typelow bandwidth type medium-bandwidth type wide bandwidth type low bandwidth type medium-bandwidth type

AS3603

AS3503

AS3703

AS3803

AS3903

AS2503Isolated type

AS2603

BridgeVoltage
AC 0.5V、AC 2V
DC 2, 3, 5, 9, 10 V
12.5 kHz sine wave
25 kHz sine wave
5 kHz sine wave
12.5 kHz sine wave
power supply Frequency 5 kHz sine wave
At ± 200 × 10 -6 strain At ± 500 × 10 -6strain At ± 500 × 10 -6 strain
At ± 200 × 10 -6 strain At ± 500 × 10 -6 strain ± 1,000 x10 -6 at strain ± 2,000 x10-6 at strain± 10 V output± 10 V output± 10 V output± 10 V output± 10 V output± 10 V output±10 V output
Voltage sensitivity(when RANGE=200,(when RANGE = 500,
(when RANGE = 500,
(when RANGE=200,(when RANGE = 500, (when RANGE = 1k, no (when RANGE = 2k, no
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE, BV = 2 V)
FINE,BV = 2 V)
Response frequency DC to 2kHz ± 10%
DC to 5kHz ± 10%
DC to 10kHz ± 10%
DC to 2kHz ± 10%
DC to 5kHz ± 10%
DC to 500kHz +1,-3dB DC to 100kHz +1,-3dB
Sensitivity stability
Within ± 0.02%/ ° C
Within ± 0.02%/ ° C
Within ± 0.02%/ ° C
Within ± 0.05%/ ° C
Within ± 0.05%/ ° C
Within ± 0.01%/ ° C
Within ± 0.01%/ ° C
Zero-point stability
Within ± 0.1 × 10 -6 strain/ ° C
Within ± 1 × 10 -6 strain/ ° C
Non-linearity± 0.1％ /FS± 0.1％ /FS± 0.2％ /FS± 0.1％ /FS± 0.1％ /FS
Within ± 0.01%/FS
Within ± 0.05%/FS
2.0 ×10-6 strain p-p
5.0 ×10-6 strain p-p
7.0 ×10-6 strain p-p
2.0 ×10-6 strain p-p
5.0 ×10-6 strain p-p
80 ×10-6 strain p-p
50 ×10 -6 strain p-p(Input conversion value) (Input conversion value) (Input conversion value) (Input conversion value) (Input conversion value) (Input conversion value) (Input conversion value)
Noise
at W/B, RANGE = 200, at W/B, RANGE = 500, at W/B, RANGE = 500, at W/B, RANGE = 200, at W/B, RANGE = 500, at W/B, RANGE = 1k,
at W/B, RANGE = 2k,
FINE = x1, BV = 2 V
FINE = x1, BV = 2 V
FINE = x1, BV = 2 V
FINE = x1, BV = 2 V
FINE = x1, BV = 2 V
FINE = x1, BV = 2 V
FINE = x1, BV = 2 V
・The high voltage
・The high voltage
・The high voltage
・The high voltage
・The high voltage
・High response
・Input/output
isolation makes it
sensitivityof
this
sensitivityof
thisfrequency
makes
itsensitivity of thissensitivity of thissensitivity of thissuitable for strain
device makes
device makes
suitable for impact
device makes
device makes
device makes
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iteffectiveforiteffectiveforstrainmeasurement.
it effective forit effective forit effective forlocations withmeasuring minutemeasuring minute ・Effective formeasuring minutemeasuring minutemeasuring minutehigh potential
stresses using a
stresses using ameasurement withdifference between
stresses using a
stresses using a
stresses using astrain gauge.
strain gauge.
small transducers
the groundingstrain gauge.
strain gauge.
strain gauge.
with high response
・Input/output
・Input/output
locations, as well as
・Input/output
・Input/output
・Input/output
frequency.
isolation isisolation isfor high-precisioneffective for strain
effective for strain ・As a DC strain
isolation isisolation isisolation ismeasurement
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effective for strain
effective for strainsystems.
locations with highlocations with highsensitivity is high・High response
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potentialdifference
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voltage can beeffective forpotential difference
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potential difference ・The unique noiseset high, enabling
・The unique noiseimpact strain
between grounds.
between grounds.
between grounds.
measurement andhighly accurate
resistant design
resistant design
・Especially suited
・The 5 kHz response ・The response
measurement withmeasurement evenreduces Common
reduces Common
small transducers
with low-sensitivity
Mode Noise andfor low-speed,frequency makes it
frequency is as high Mode Noise and iswith high response
strain transducers.
suitable for highis suitable forhigh-precision
suitable for relatively as 10 kHz, making
frequency.
precision
microhigh-precision,・
Non-linearity
ismicro-stresshigh-speed stressit suitable for
・The bridge voltage
stress measurement high-response
excellent.
measurement.
measurement.
high-speed stresscan also be set
withminimalmeasurements
withhigh, enablingmeasurement.
noise due to theminimal noise due
highly accurate
measurement
to the measurement
measurement with aenvironment.
environment.
wide variety of straintransducers.
Measurement by strain gauge◎〇
Measurement with strain◎◎
gauge transducers
Strain measurement at sites
〇
〇
〇
◎
◎
△
where surge voltage is a concern
Bridge Check Method
Bridge Check function enables determination of cable breaks, breaks on each circuit of the gauge, and short-circuit locations.
When the distance between
the measurement point and the Cable Length Compensation function enables highly accurate measurement by compensating for voltage drop across the bridge voltage.
measuring instrument is long
Impact strain measurement
×◎
Use as a DC amplifier×◎◎：Optimal, 〇 : Appropriate, △ : Not very appropriate, × : Not appropriate, BV: Bridge supply voltage.

Main Specificatins

4

AC strain amplifier (AC bridge type)DC strain amplifier (DC bridge type)
1. Various strain gauges
1. Strain gauge type transducers for Load, Pressure,
2. Load, Pressure, Displacement, Acceleration, Torque
Displacement, Acceleration, Torque, etc.
(Strain gauge type transducers)
2. Various strain gauges (Impact strain)
Better S/N ratio and higher sensitivity than DC bridge type DC strain Superior non-linearity and higher response frequency compared to AC
amplifiers. Because it is an AC amplifier, it does not include the bridge type AC strain amplifiers. Mainly used in combination with strain
commercial power supply frequency, which is a major noise source, in gauge transducers. It can also be used as a voltage amplifier.
the amplification bandwidth, making it extremely resistant to extraneous
noise. This amplifier is especially effective for sensors which output
with parallel wires, such as strain gauges.

Dynamic Strain Measuring Instruments
Strain Amplifier AS3000/2000■Measurement Diagram

Strain gauge＋

Bridge box

Data Acquisition System

Strain gauge transducers
Input cable

Synchronization cable,
AS30-505
Remote control cable,
AS30-506-250
Output cable
A/D converter + PC

Microvoltage

Bench top caseAS16-104 (for 4 units) / AS16-105 (for 6
units) / AS16-106 (for 8 units)

Rack mount case, AS16-107(for 8 units)

Unit stand, 43721

Plug

Bridge box
5370A (120 Ω ), 5373A (350 Ω )Signal cable, AS30-503

Signal cable, AS30-504

Metal BNC to electrical clips [red (+), black (-)], 2 m long

Metal BNC to Metal BNC, 2 m long

Plug

Plug

Synchronization cable, AS30-505

D-Sub9pin・plug to D-sub9pin・plug, 1.8m long

Remote control cable, AS30-506-250

D-Sub9pin･plug to loose end wires (5 wires), 2.5 m long

Relay cable, AS30-501-xxx（Φ 9.6 mm, 4-core shield, length xxx : choose from

1,2,5,10,15,20,25m.long

Plug

Jack

Extension cable, AS30-502-xxx（Φ 9.6 mm, 4-core shield, length xxx : choose from

1,2,5,10,15,20,25m.

DC power cable, AS30-507(For an amplifier unit)
D-Sub 9 pin plug to loose end wires(2 wires+Shield),
2 m long

DC power cable, AS30-508(for benchtop and rackmount cases)
circular connector(female) to loose end wires (2 wires),
2.5 m long5

■Specifications
AC Bridge TypeItem

AS3603

AS3503ーNoise resistant
Number of channels

AS3703

AS3803

AS3903

Input noise suppression circuitry
1 channel/unit
60 ～ 1,000 Ω

Bridge resistance
Gauge factor

2.00

Bridge power Voltage
supply (BV)
Frequency 5 kHz sine wave

0.5 VAC, 2 VAC
12.5 kHz sine wave

25 kHz sine wave

Synchronization input/
output signal (OSC)

5 kHz sine wave

12.5 kHz sine wave

2.5 VACE-terminal Connection The Shield Wire Potential Switching switch (E-SW) can be used to switch the potential of the E-terminal (Shield Wire) of the input cable
Switching function
to the input common (COM) or GND (casing ground potential via protective element).
Bridge Check (BRC)
function

Detects disconnections and shorts in input bridge circuits with bridge resistance of 120 Ω or more and disconnections in input cables,and displays the results on LEDs.Function can be turned ON/OFF by FNC setting.

Balaning adjustment
range(Auto-balance)

Resistance Deviation: ± 2% ( ± 10,000 x 10-6 strain), capacitance imbalance: Approx. 2,000 pF

Cable Length Compensation Automatic compensation for bridge power supply voltage drop due to cable length to bridge circuit (bridge resistance 120 Ω or more).
(CLC) function
Function can be turned ON/OFF by FNC setting.

Balancing adjustment
accuracy
Maximum input range

Voltage sensitivity

Within ± 0.4 × 10-6 strain Within ± 1.0 × 10-6 strain Within ± 1.0 × 10-6 strain Within ± 0.4 × 10 -6 strain Within ± 1.0 × 10 -6 strain(RANGE = 200, FINE = x1, (RANGE = 500, FINE = x1, (RANGE = 500, FINE = x1, (RANGE = 200, FINE = x1, (RANGE = 500, FINE = x1,
BV = 2 V)
BV = 2 V)
BV = 2 V)
BV = 2 V)
BV = 2 V)± 200,000 x 10 -6 strain(RANGE = 20k,
FINE = x2.5, BV = 0.5 V)± 500,000 x 10 -6 strain(RANGE = 50k,
FINE = x2.5, BV = 0.5 V)± 500,000 x 10 -6 strain(RANGE = 50k,
FINE = x2.5, BV = 0.5 V)± 200,000 x 10 -6 strain(RANGE = 20k,
FINE = x2.5, BV = 0.5 V)± 500,000 x 10 -6 strain(RANGE = 50k,
FINE = x2.5, BV = 0.5 V)± 10 V output at ± 200 × ± 10 V output at ± 500 × ± 10 V output at ± 500 × ± 10 V output at ± 200 × ± 10 V output at ± 500 x

10 -6 strain (RANGE = 200, 10 -6 strain (RANGE = 500, 10 -6 strain (RANGE = 500, 10 -6 strain (RANGE = 200, 10 -6 strain (RANGE = 500,
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)

Measurement range(RANGE)

200, 500, 1k, 2k, 5k,
10k, 20k (x10 -6 strain ×
2/BV value), OFF

Measuring range fineadjustment (FINE)

Continuously variable within the RANGE and adjustable with the FINE knob. Variation can be changed in two steps.

Internal Calibrator(+CAL, -CAL)

Calibration value range: ± 1 to 9,999 x10-6 strain, calibration value accuracy: ± (0.5% rdg + 0.5 × 10-6 strain)

Auto-range (ARG)
function

Automatic adjustment of RANGE and FINE so that the output voltage becomes the specified value when the calibration value set in theInternal Calibrator is applied.Output voltage value (OFF, 5 V, 8 V, 10 V) can be specified by the FNC setting.

Non-linearity
Frequency
characteristic (W/B)± 0.1%/FS

DC to 2 kHz ± 10%500, 1k, 2k, 5k, 10k,
20k, 50k (x10 -6 strain ×
2/BV value), OFF± 0.1％ /FS

DC to 5 kHz ± 10%500, 1k, 2k, 5k, 10k,
20k, 50k (x10 -6 strain ×
2/BV value), OFF± 0.2％ /FS

DC to 10 kHz ± 10%200, 500, 1k, 2k, 5k,
10k, 20k (x10 -6 strain ×
2/BV value), OFF± 0.1％ /FS

DC to 2 kHz ± 10%500, 1k, 2k, 5k, 10k,
20k, 50k (x10 -6 strain ×
2/BV value), OFF± 0.1％ /FS

DC to 5 kHz ± 10%

High-Pass Filter (HPF) Cutoff frequency: 0.5 Hz, 2-pole Butterworth type (filter drop characteristic -12dB/oct)
Low-Pass Filter (LPF)

Cutoff frequency: 10, 30, Cutoff frequency: 10, 30, Cutoff frequency: 10, 30, Cutoff frequency: 10, 30, Cutoff frequency: 10, 30,
100, 300, 500 Hz, 4-pole 100, 500, 3 kHz, 4-pole 100, 500, 3 kHz, 4-pole 100, 300, 500 Hz, 4-pole 100, 500, 3 kHz, 4-pole
Butterworth type (filter drop Butterworth type (filter drop Butterworth type (filter drop Butterworth type (filter drop Butterworth type (filter drop
characteristics -24dB/oct) characteristics -24dB/oct) characteristics -24dB/oct) characteristics -24dB/oct) characteristics -24dB/oct)

Temperature Sensitivity Within ± 0.02%/ ° C, Within ± 0.2%/24h
stability
Zero-point Within ± 0.1 × 10-6 strain/° C, ± 0.5 × 10-6 strain/24h
Noise

Output voltage
Output adjustment
Level indication
Digital display

Within ± 0.05%/ ° C, Within ± 0.2%/24h

2.0 × 10 -6 strain p-p input 5.0 × 10 -6 strain p-p input 7.0 × 10 -6 strain p-p input 2.0 × 10 -6 strain p-p input 5.0 × 10 -6 strain p-p input
conversion
conversion
conversion
conversion
conversion(W/B, RANGE = 200,
(W/B, RANGE = 500,
(W/B, RANGE = 500,
(W/B, RANGE = 200,
(W/B, RANGE = 500,
FINE = x1, BV = 2 V, at 120 FINE = x1, BV = 2 V, at 120 FINE = x1, BV = 2 V, at 120 FINE = x1, BV = 2 V, at 120 FINE = x1, BV = 2 V, at 120
Ω bridge)Ω bridge)Ω bridge)Ω bridge)Ω bridge)

OUTPUT1 ± 10 V ± 5 mA (2 k Ω load or more), OUTPUT2 ± 10 V ± 10 mA (332 k Ω load or more),
Operable at output resistance 0.5 Ω or less, capacitive load up to 0.1 µF.
OUTPUT2 ADJ (continuously variable from 1 to 1/10 independently)

17-dot LED display for monitoring OUTPUT1, Green LED in the center lights up within approx.

± 100 mV and LEDs on both ends blink at approx. ± 10.5V or more

4 1/2 digit digital display for OUTPUT2 monitor, scaling available with OUTPUT2 ADJ. Decimal point position can be changed by
FNC setting. Accuracy: Within ± 0.05% rdg ± 1 count

Key Lock function

Key lock ON/OFF of the operation panel is possible by pressing the key lock button for about 1 second (excluding the calibration
value application switch (+CAL, -CAL) )Remote function

Rear interface connector: D-SUB, 9P, female, Mounting: #4-40 inch screw+CAL and -CAL input, BAL function [Bridge check (BRC), Line length correction (CLC), Auto range (ARG), Auto balance (resistancebalance)], RANGE OFF and KEY LOCK controls are possible by external signal

Saving of setup values Save to flash memory
Vibration resistance

29.4m/s2 (50 Hz, XYZ each for 10 minutes) and compliant with MIL-STD-810G-514.6

Withstand voltage

Between input terminals (A, B, C, D, E) and the output, and the case: 1 kV AC for 1 minuteBetween AC power input and signal input, output, and the case: 1.5 kV AC for 1 minuteBetween DC power input and signal input: 1 kV AC for 1 minuteBetween DC power input and signal output, and the case: 500 V AC for 1 minuteAC power supply

100 to 120 V AC / 200 to 240 V AC (switchable with [AC power supply voltage switch] on the bottom) 12 VA or less when AC240V, 50/60 Hz

DC power supply

10 to 30 V DC, 6 VA or less

Operating temperature/humidity -10 ° C to +50 ° C, within 20% to 85% RH, with no condensation
Storage temperature/humidity -20 ° C to +70 ° C, within 10% to 90% RH, with no condensation

6

External dimensions

H143 x W49.5 x D252 mm (excluding projection)

WeightApprox. 1.4 kg

Dynamic Strain Measuring Instruments
Strain Amplifier AS3000/2000

AS3000

Unit：mm49.5(12.5)

252(12.5)

(4)

143

(128)

AS3000

Unit：mm

AS2000(12.5)

49.5(12.5)

252

901

INPUT

23

456

OUTPUT2OUTPUT1

143

I

F

POWER

Bench top case

品

名

型

A

名

Ａ

B

4CH Bench top caseAS16-104265

236

6CH Bench top caseAS16-105365

336

8CH Bench top caseAS16-106465

436

Unit：mm

390

AS2503
AS2603(Wide bandwidth type)(Isolated type)
Number of channels 1 channel/unit
Bridge resistor
60 to 1,000 Ω
Gauge rate
2.00
Bridge power supply (BV) 2, 3, 5, 9, 10 VDC
Detects disconnections and shorts in the bridge
circuit (120 Ω or more) and disconnections in the
Bridge Check (BRC)
cable to the input bridge circuit, and displays thefunctionresults on LEDs. Function can be turned ON/OFF
with the setting switch on the bottom.
Automatic compensation for bridge power supply
Cable Length
voltage drop due to cable length to bridge circuit.
Compensation (CLC)
Function can be turned ON/OFF with the setting
function
switch on the bottom.
Equilibrium adjustment
Resistance Deviation: ± 2% ( ± 10,000 x 10 -6 strain)
range(Auto-balance)
Within ± 1.0 × 10 -6 strain Within ± 2.0 × 10 -6 strain
Equilibrium(RANGE = 1k,(RANGE = 2k,adjustment accuracy
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
± 125,000 x10 -6 strain± 250,000 x10 -6 strain
Maximum input range (RANGE = 50k,
(RANGE = 100k,
FINE = x2.5, BV = 2 V)
FINE = x2.5, BV = 2 V)
± 10 V output at ± 1,000 ± 10 V output at ± 2,000
Voltage sensitivity
x10-6 strain (RANGE = 1k, x10-6 strain (RANGE = 2k,
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)
1k, 2k, 5k, 10k, 20k, 50k 2 k , 5 k , 10 k , 20 k , 5 0 k ,Measurement range(x10-6 strain × 2/BV value), 100k (x10 -6 strain × 2/BV
(RANGE)OFF
value), OFF
Continuously variable within the RANGE and adjustable
Measuring range finewith the FINE knob. Amount of variation can betuning (FINE)
changed in two steps.
Internal Calibrator
Calibration value range ± 1 to 9,999 x10 -6 strain,(+CAL, -CAL)
accuracy ± (0.2% rdg + 0.5 x10 -6 strain)
Non-linearity
Within ± 0.01%/FS
Within ± 0.05%/FS
Frequency
DC to 500 kHz +1, -3 dB DC to 100 kHz +1, -3 dB
characteristic (W/B)
Cutoff frequency: 0.5 Hz
HPF
2-pole Bessel type (filter drop characteristics -12dB/oct)Cutoff frequency: 10, 30, 100, 1k, 30 kHz
Low-Pass Filter
4-pole Bessel type (filter drop characteristics -24dB/oct)-6-6Temperature Zero-point Within ±1 ×10 strain/ ° C, within ±5 ×10 strain/24h
stability
Sensitivity Within ± 0.01%/ ° C, within ± 0.05%/24h
80 x10 -6 strain p-p input 50 x10 -6 strain p-p input
conversion
conversion(W/B, RANGE = 1k, FINE (W/B, RANGE = 2k, FINE
= x1, BV = 2 V, at 120 Ω = x1, BV = 2 V, at 120 Ω
bridge)bridge)Noise
20 × 10 -6 strain p-p input 20 × 10 -6 strain p-p input
conversion (DC to 30 kHz, conversion (DC to 30 kHz,RANGE = 1k, FINE = x1, BV R ANGE = 2k, FINE = x1,= 2 V, at 120 Ω bridge)
BV = 2 V, at 120 Ω bridge)
Output voltage
OUTPUT1 ± 10 V ± 5 mA, OUTPUT2 ± 10 V ± 10 mA
OUTPUT2 ADJ (continuously variable from 1 to
Output adjustment
1/10 independently)
17-dot LED display, for monitoring OUTPUT1, green
Level indication
LED in the center lights up within approx. ± 100 mV andLEDs on both ends blink at approx. ± 10.5V or more
4 1/2 digit digital display, for OUTPUT2 monitor,
scaling available with OUTPUT2 ADJ.
Digital display
Decimal point position can be changed by a setting
switch on the bottom.
Key lock ON/OFF by pressing the key lock button
Key Lock function
for 1 second
Function of the I/F connector on the back. +CAL and-CAL input, BAL function [Bridge Check (BRC), Cable
Remote function
Length Compensation (CLC), Auto-balance (resistor
balance)], KEY LOCK
Saving of setting values Save to flash memory
29.4 m/s 2 (50 Hz, XYZ each for 10 minutes) andVibration resistancecompliant with MIL-STD-810G-514.6･Between input terminals (A, B, C, D, E) and the output,
and the case: AC 1 kV, for 1 minute【AS2603】･Between AC power input and input, output, and thecase: AC 1.5 kV, for 1 minute【AS2503,AS2603】･Between DC power input and input, output, and theWithstand voltage
case: AC 500 V, for 1 minute【AS2503】･Between DC power input and input: AC 1 kV, for 1
minute【AS2603】･Between DC power input and output, and the case:AC 500 V, for 1 minute【AS2603】
100 to 120 VAC / 200 to 240 VAC (switchable by
AC power supply
internal switch) 12 VA or less when AC240V, 50/60 Hz
DC power supply
10 to 30 VDC, 7 VA or less
Operating temperature and -10 ° C to +50 ° C, within 20 to 85% RH,
humidity range
with no condensation
Storage temperature-20 ° C to +70 ° C, within 10 to 90% RH
and humidity range
External dimensions H143 x W49.5 x D252 mm (excluding protruding parts)
WeightApprox. 1.4 kg
Item

Dimensions Diagram78

DC Bridge Type

B

149
42 15

Specifications as a voltage amplifier(only items different from strain)
Item
AS2503
AS2603
Input impedanceApprox. 10 M Ω + approx. 10 M Ω (at DC)
Zero adjustment range ± 10 mV (input conversion value) (BV = 2 V), includes
Auto-balance and fine tuning.
(Auto-balance)
Within ± 1 μ V (input
Within ± 2 μ V (input
Equilibrium
conversion value), (RANGE conversion value) (RANGE
adjustment accuracy= 1k, FINE x1, BV = 2 V)
= 2k, FINE x1, BV = 2 V)
± 125 mV (RANGE = 50k, ± 250 mV (RANGE=100k,
Measurement range
FINE = x2.5, BV = 2 V)
FINE =x2.5, BV = 2 V)
x5,000 (RANGE = 2k),x10,000 (RANGE = 1k),x5,000 (2k), x2,000 (5k), x2,000 (5k), x1,000 (10k),
Gain
x1,000 (10k), x500 (20k), x500 (20k), x200 (50k),x100 (100k), FINE = x1
x200 (50k), FINE = x1
Gain accuracy± 0.1％
Common Mode
70 dB or better (50, 60 Hz) 100 dB or more (50, 60 Hz)
Rejection Ratioat 1 k Ω balanced input
at 1 k Ω balanced input(CMRR)
Maximum allowable± 8 VDC or AC peak
input voltage
Allowable Common± 5 VDC or AC peak
± 300 VDC or AC peak
Mode input voltage
Setting value: ± 0.01 to 99.99 mV ( ± 0.01 to 59.99
mV when BV = 2 V)
Internal Calibrator
Accuracy: ± (0.2% rdg + 5 μ V)
Within ± 0.05%/FS
Non-linearity
Within ± 0.01%/FS
Temperature Zero-point Within ± 1 μ V/ ° C, within ± 5 μ V/24hstability
Sensitivity Within ± 0.01%/ ° C, within ± 0.05%/24h
80 μ V p-p input conversion 50 μ V p-p input conversion(W/B, RANGE = 1k (x10,000), (W/B, RANGE = 2k (x5,000),
FINE = x1, BV = 2 V)
FINE = x1, BV = 2 V)Noise
20 μ V p-p input conversion 20 μ V p-p input conversion(DC to 30 kHz, RANGE = 1k, (DC to 30 kHz, R ANGE =FINE = x1, BV = 2 V)
2k, FINE = x1, BV = 2 V)

7

[Main Unit]

Product

AC Strain Amplifier

DC Strain Amplifier

Model
AS3603
AS3503
AS3703
AS3803
AS3903
AS2503
AS2603Specifications
General-purpose, low bandwidth, isolated type, DC to 2 kHz (carrier wave 5 kHz)General-purpose, medium-bandwidth, isolated type, DC to 5 kHz (carrier wave 12.5 kHz)General-purpose, wideband, isolated type, DC to 10 kHz (carrier wave 25 kHz)
Noise-resistant, low bandwidth, isolation type, DC to 2 kHz (carrier wave 5 kHz)
Noise-resistant, medium-bandwidth, isolated type, DC to 5 kHz (carrier wave 12.5 kHz)
Wideband type, DC to 500 kHz, constant voltage type
Isolated type, DC to 100 kHz, constant voltage type

AS3000 Standard Accessories Signal cable, Screwdriver for adjustment, AC power cable, Instruction manual, Quick guide sticker
AS2000 Standard Accessories Signal cable, Screwdriver for adjustment, Time-lag fuse, AC power cable, Instruction manual
Note: If 4 to 20 mA output is required, the voltage output of OUTPUT2 can be changed to current output. (Please contact our sales staff.)[Option]

Product
Bridge box (120 Ω )Bridge box (350 Ω )Bench top case
Rack mounted caseBlank panel
Unit standFixing knurled screws[Cable]Product
AC power cable (for AS3000)

AC power cable (for AS2000)
DC power cable

Signal cable

Model
5370A
5373A
AS16-104
AS16-105
AS16-106
AS16-107
AL13-318
43721
43537-010

Details
120 Ω , with approx. 3 m cable350 Ω , with approx. 3 m cable
4 channels, approx. 3.0 kg, with AC power cable and panel fixing screws
6 channels, approx. 3.7 kg, with AC power cable and panel fixing screws
8 channels, approx. 4.4 kg, with AC power cable with panel fixing screws
8 channels, approx. 4.5 kg, with AC power cable with panel fixing screws
For 1 slot
For 1 unit
10 pcs/set, compatible with AS, AL and AG amplifiers

Model
AX-KO6165-200
0311-5044
0311-5112
AS30-507
AS30-508
AS30-504
AS30-503
0311-2057
0311-5200

Details
For unit and case, 100 V AC, 2 m long
For unit and case, 100 V AC, 2.5 m long
For unit and case, 200 V AC, Loose cable end (3 wires), 3.5 m long
For unit, D-sub 9pin to loose cable end (2 wires), 2 m long
For case, circular connector (female) to loose cable end (2 wires), 2.5 m long
Metal BNC to Metal BNC ＊ 1）, impedance 50 Ω , 2 m long
Metal BNC ＊ 1）to electrical clips [red (+), black (-)], impedance 50 Ω ,2 m long
Metal BNC ＊ 1）to electrical clips [red (+), black (-)], impedance 50 Ω , 2 m long
Metal BNC ＊ 1）to Isolated BNC, impedance 50 Ω , 2 m long
Cable for synchronization between units or cases.
D-Sub 9pin plug to D-sub 9 pin plug, 1.8m long
Control cable for unit or case
D-Sub 9 pin plug to loose cable end (5 wires), 2.5 m longΦ 9.6 mm, 4-core shielded, length 5 m,
Plug
NDIS connector plug to plag

Synchronization cable

AS30-505

Remote control cable

AS30-506-250

Relay cable ＊ 2）

AS30-501-005

Extension cable ＊ 2）

AS30-502-005

Φ 9.6 mm, 4-core shielded, length 5 m,

NDIS connector jack to plag

Jack

Plug

Plug

＊ 1）Common mode input voltage for metal BNC is ± 42 V (DC or AC peak value)＊ 2）Cable lengths of 1 m, 2 m, 5 m, 10 m, 15 m, 20 m and 25 m are available. (Please contact our sales staff.)[Other]Product
Traceability chart
Calibration certificate

Model
AZ-TRB-AV
AZ-KENSA-AS

Standards

Product
Instruction Manual
Instruction Manual

Model
AZ-MANUAL1-EX For AS3000 series
AZ-MANUAL1-EX For AS2000 series

Calibration certificate with inspection data
Standards

A&D Company, Limited

A&D Technology Trading Co.,Ltd

A&D ENGINEERING, INC.

A&D INSTRUMENTS (THAILAND) LIMITED

3-23-14 Higashi-lkebukuro, Toshima-ku,Tokyo
170-0013 Japan
Tel:+81 3 5391-6132 Fax:+81 3 5391-1566
http://www.aandd.jp
Headquarters Office: 4622 Runway Boulevard
Ann Arbor, MI 48108, U.S.A.
Sales Office: 47747 Warm Springs Blvd, Fremont,
CA 94539
TEL:+1 800-726-3364

32CD, World Plaza, No.855 South Pudong
Road,China (Shanghai) Pilot Free Trade Zone,
200120, China
TEL:+86 21-3393-2340 FAX:+86 21-3393-23347
168/16 Moo 1, Rangsit, Thanyaburi,
Pathumthani 12110 Thailand
TEL:+66 2-003-8911

A&D KOREA Limited

817, Manhattan Bldg., 33, Gukjegeumyung-ro 6-gil,Yeongdeungpo-gu, Seoul, 07331, Korea
TEL:+82 2-780-4101 FAX:+82 2-782-4280*AS2000_3000-ADCC-00-SI2-244000