Matsusada Precision AMJ Series User manual

Instruction Manual
MODEL AMJseries
B/N 029.9.008 *029.9.008*Rev. 1.0

Note
◆All rights reserved.
◆
No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form, or by any means, mechanical, electronic, photocopying,
recording, or otherwise, without the prior written permission of Matsusada Precision.
◆
No patent liability is assumed withrespect to the use of the information contained herein.
Moreover, because Matsusada Precision is constantly striving to improve its high-quality
products, the information contained in this manual is subject to change without notice.
Every precaution has been taken in the preparation of this manual. Nevertheless,
Matsusada Precision assumes no responsibility for errors or omissions.
Neither is any liability assumed for damages resulting from the use of the information
contained in this publication.
Trademarks
◆Company names and product names in this document are the trademarks or registered
trademarks of their respective companies.
Warranty
◆For details, refer to the following website.
https://www.matsusada.com/support/manufacturer_warranty.html

i
AMJ series
For Safe Use of the Product
◆Introduction
The product generates high-voltage and high-energy.
Therefore, wrongly handling or operating the product may result in death or serious injury and maybe
property damage as well. In order to use the product safely, read the instruction manual thoroughly before
use to understand how to use and operate it properly.
Pleasenotethatwewillnotbeheld responsibleforanydamageorloss causedbynotfollowingthewarnings,
cautions, and procedures described in the manual.
Keep the manual with you so that you can read it whenever you want.
◆Symbols
Symbols are used in the manual and product, which indicate precautions to be observed for safe use.
Understand these symbols first and then read the manual thoroughly.
Some symbols below are not used in products.
Indicates a potentially hazardous situation, which, if not avoided,
may result in serious injury or death.
Indicates a potentially hazardous situation, which, if not avoided, may
result in minor or moderate injury or in property damage.
Indicates danger/warning/caution. Refer
to the instruction manual when this
symbol appears on the unit.
Frame or chassis terminal
Indicates the possible danger of electric
shock under specific conditions, which
may result in serious injury or death.
Ground terminal
High Temperature Caution:
Indicates the possible danger of injury by
high temperature under specific
conditions.
Power ON
Indicates general prohibitions, including
warnings.
Power OFF
Indicates what must be followed.
Standby
Protective earth terminal (ground terminal
for preventing electric shock)
Bistable push button switch
ON
Indicates the possible danger of death if
you drink it and burns or blindness if it
attaches.
Bistable push button switch
OFF
Indicates the possible danger of exposure
to radiation.
Alternative Current

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AMJ series
◆Understand the risks.
The Product generates high-voltage and high-energy.
The product is designed for electrical engineers or the equivalents who install, wire, and operate it.
Read the instruction manual thoroughly before use and familiarize yourself with the proper use and danger
of the product.
◆Make sure to allow only specific people to handle the product.
Make sure to allow only the following people to handle the product:
1. who are electrical engineers or the equivalents and have already familiarized themselves with the
proper use and danger of the product, or
2. who are electrical engineers or the equivalents andhave alreadybeen trained by the above-mentioned
people, or
3. who work under the supervision of the above-mentioned people.
If people other than those listed above install, wire, oroperate the product, it maycause electric shock,
burnout, or injury.
◆Do not open or remove the case or panel of the product.
Do not disassemble, repair, or modify the product by yourself. High-voltage is applied to the inside of it.
Otherwise, it may cause electric shock, fire, or malfunction.
Moreover, if you do it, the safety and functions are not covered with the warranty.
◆The product does not suit to install and use in places where children may be present.
The product is designed to be installed in places such as factories or laboratories. Do not install and use it
where children may be present.
◆Make sure to ground it.
When the product has a protection ground terminal or GND terminal, make sure to ground it.
When the AC line input of it is an inlet type, connect the attached power cable or a power cable suitable
for your area to an outlet with the ground. Otherwise, it may result in electric shock or fire.
◆Regarding power cable
When a power cable is enclosed or attached to the product, do not use it for other products.
When no power cable is enclosed with the product, prepare the power cable suitable for the usage
environment and area by yourself.
◆Regarding the connection of power cable
Electrical engineers or the equivalents who have already been familiarized with the proper use and danger
of the product should connect the power cable to the AC input by referring to the instruction manual.
Regarding products that have acquired the safety standard, check the page describing the over-voltage
categories too.
◆Do not process or damage power cables
It may result in electric shock or fire.
◆Regarding the input voltage
Check the page describing the input terminals and input voltage in the instruction manual.
Do not provide any voltage out of the specifications.

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AMJ series
◆Regarding the fuse
The product builds in a protective fuse. In the case where a fuse holder is arranged outside of the product,
you can replace it by yourself. Refer to the instruction manual to replace it.
In the case where a fuse holder is not arranged outside of the product, you cannot replace it by yourself.
In this case, do not open the case or panel of the product and contact us.
◆The product is designed for indoor use.
Use the product indoors only, not outdoors. Even indoors, do not use it if there is a possibility of water
leakage, flooding, or snow covering.
◆Regarding operating temperature and humidity
Use the product within the range of the specifications describing in the instruction manual.
Do not use it in a place where the ambient temperature exceeds the specified range or a closed place.
◆Do not install the product in places where condensation may occur.
Otherwise, insulation deteriorates and it may cause electric shock, fire, or malfunction.
◆Do not place anything on top of the product.
Otherwise, they may fall or tumble from it.
◆Do not put anything into the product.
Do not put foreign objects such as metal or liquid into the product through the air inlets, air outlets, or other
openings. Otherwise, it may result in electric shock, fire, or malfunction.
◆Operate the product with the right hand.
Use only your right hand to operate the product and keep your left hand away from it, which can reduce
the risk of electric current flowing through the left hand to the vital organs of the body in the event of an
electric shock.
◆Do not touch the wiring/load connected to the output and any terminals/connectors during the
operation or just after turning output off.
Very high-voltage is on the terminals and connectors during the operation and even just after the output is
turned off. Touching them may result in serious injury or death by electric shock.
The terminals here mean all terminals like input and output terminals and terminals for communications
and remote controls.
◆Turn off the product before touching the wiring/load connected to the product and any
terminals/connectors on the product and cut it off from the AC input.
Before touching the terminals/connectors and wiring/load, turn off the product and unplug the AC input
cable from the outlet or turn off the AC input breaker. Then, check there is no voltage remained using a
tester.
Since the output and sense terminals are connected to condensers in it, there is high-voltage remained on
them even just after it is turned off.
In order toavoid electric shock, ground the terminals to discharge using ashort-circuit grounding apparatus
and check the voltage again.
The terminals here mean all terminals like input and output terminals and terminals for communications
and remote controls.

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AMJ series
◆Level the product out to use for good heat dissipation.
Do not install the product upside down or sideways. If not, the inner heat dissipation will be insufficient.
It may result in smoke or fire due to components deterioration.
◆Do not install the product in a place where cold air directly blows to it.
It may result in electric leakage or burnout due to condensation.
◆Do not install the product in a place where it is exposed to corrosive gases or liquids.
It may result in smoke or burnout due to components deterioration.
◆Do not store or use the product in a place where conductive dust, such as iron powder, can enter
through the air inlet/outlet.
Doing so may cause a short circuit, resulting in electric leakage, burnout, fire, or malfunction.
◆Do not install the product in a dusty place.
Accumulating dust in the air inlet will make hard to cool it down it, it may result in malfunction.
In that case, remove dust immediately.
◆Do not block the air inlet and outlet.
Secure 30 cm space at least around the openings.
If they are blocked, the product cannot show the rated performance due to the internal temperature
increase. Moreover, components deteriorate and it may result in smoke or fire.
◆Remove wiring to and from the product when work like welding near it is done.
◆Do not wipe the equipment with a dust cloth wet with chemicals (thinner or the like) or water.
Otherwise, it may result in an electric shock, electric leakage, or burnout due to water getting inside.
◆Regarding fan replacement
When products equip a fan, it has a lifetime. It will be worn out and deteriorated with the time passed and
its operation may become unstable. Also, its lifetime greatly varies depending on the usage environment
such as temperature, humidity, dust. It requires to be replaced at regular intervals to extend the lifetime.
For the replacement, contact us.
(It requires a replacement charge separately. Do not replace it by yourself, as there is a risk of electric
shock.)

Table of Contents
v
AMJ series
Table of Contents
Page
For Safe Use of the Product ............................................................................................................................. i
Table of Contents ............................................................................................................................................. v
Features and Specifications ..................................................................................................................1
1-1 Greetings..................................................................................................................................................1
1-2 Overview...................................................................................................................................................1
1-3 Features....................................................................................................................................................1
Before Use ............................................................................................................................................2
2-1 Unpacking.................................................................................................................................................2
2-2 Initial Inspection........................................................................................................................................2
2-3 Handling Precautions ...............................................................................................................................2
2-4 Installation.................................................................................................................................................3
2-4-1 Installation Conditions.............................................................................................................................3
Specifications........................................................................................................................................4
3-1 Product Lineup .........................................................................................................................................4
3-2 Specifications ...........................................................................................................................................5
External Appearance.............................................................................................................................6
4-1 Type 20W ................................................................................................................................................. 6
4-1-1 Front panel..............................................................................................................................................6
4-1-2 Rear panel...............................................................................................................................................6
4-1-3 External dimensions................................................................................................................................7
4-2 Type 40W ................................................................................................................................................. 8
4-2-1 Front panel..............................................................................................................................................8
4-2-2 Rear panel...............................................................................................................................................8
4-2-3 External dimensions................................................................................................................................9
INPUT/OUTPUT Connection...............................................................................................................10
5-1 Connecting AC Input Cable....................................................................................................................10
5-1-1 AC Input Cable......................................................................................................................................10
5-1-2 Precautions ...........................................................................................................................................10
5-1-3 Installation Procedure ...........................................................................................................................11
5-2 High-Voltage Output Cable ....................................................................................................................12
5-3 Connecting BNC Terminal......................................................................................................................13
5-4 Notes on Use..........................................................................................................................................14
5-4-1 Ground Stray Capacitance of High-Voltage Output Cable ...................................................................14
5-4-2 Captive load ..........................................................................................................................................15
5-4-3 Frequency response .............................................................................................................................15
5-4-4 Rise time...............................................................................................................................................15
5-4-5 Slew rate ...............................................................................................................................................16
5-4-6 For safer operation................................................................................................................................16

Table of Contents
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AMJ series
Page
Operation ............................................................................................................................................17
6-1 Operation Procedure..............................................................................................................................17
6-2 BIAS Setting...........................................................................................................................................18
6-3 Output Voltage Monitor ..........................................................................................................................18
6-4 External Output ON/OFF........................................................................................................................ 18
6-5 Protections..............................................................................................................................................19
6-6 Pulse current protection .........................................................................................................................20
6-7 Output Range.........................................................................................................................................20
Option..................................................................................................................................................21
Troubleshooting...................................................................................................................................22
8-1 Troubleshooting Steps ...........................................................................................................................22
8-2 Replacing Fuse on Rear Panel ..............................................................................................................22

1 Features and Specifications
1
AMJ series
Features and Specifications
1-1 Greetings
Thank you for purchasing AMJ series, the high-speed and high-voltage operational amplifier (hereafter
referred as “HV amplifier”).
Matsusada Precision takes every precaution to ensure the quality of our products. Please follow the
instructions in the manual to ensure full performance and safe use of the product.
We have made every effort to provide all of the necessary information in this manual. However, if you
notice any errors or omissions, please contact us.
1-2 Overview
AMJ series is a compact, high speed, high voltage operational amplifier. The high voltage know-how
accumulated by Matsusada with many years’experience was brought into design and manufacturing of
the product.
The series achieved high speed response of 75 kHz, and it can output sine, triangle, sawtooth, and
square waveform at high voltage ranging from ±500V to ±4kV
1-3 Features
Ultra compact
High-speed response up to 75 kHz
DC bias ready
3.5-digit DC output voltage monitor
All solid state for outstanding performance and high reliability

2 Before Use
2
AMJ series
Before Use
2-1 Unpacking
When unpacked the box, check the following accessories are enclosed with the unit.
If the accessories are different, missing, or broken, please contact us.
[Accessories]
[Qty]
□
AC input cable
1
□
Instruction Manual (this)
1
□
High-voltage output cable
1
2-2 Initial Inspection
Before operating the product, thoroughly check the unit for abnormalities. Do not yet connect the power
cable, or any other cables.
Check the front panel, rear panel, top, and the chassis for dents, etc.
If an abnormality is found, contact both Matsusada Precision and the delivery company.
2-3 Handling Precautions
As for the input voltage, refer to this instruction manual and the indication on the
rear panel.
Never remove the case cover, which may cause electric shock or malfunction.
When changing the system configurations, turn off any equipment consisting
of the system.

2 Before Use
3
AMJ series
2-4 Installation
The product is designed to be installed in the customer’s system and so as to meet the requirements of
CE marking regarding chassis mounting, noise control, proper protections, and isolated devices. It is not
designed to perform alone.
2-4-1 Installation Conditions
Install and use the unit in a horizontal orientation.
Using the forced air cooling system, the product has intake ports on the top and
both sides, and exhaust ports on the back. Secure a space at least 30 cm or
more around the unit so as to use it with as much ventilation as possible.
If the unit is installed in a sealed cabinet, take measures such as forced
ventilation to prevent exhaust heat from returning to the air intake.
Promptly remove any dust that accumulates in the intake port.
This will prevent the product from cooling.
Do not place any object on the main unit. This will prevent the product from
cooling.
Do not install the product in a place whereit is exposed to corrosive orexplosive
gasses or in a dusty area.
Do not install the product in a place where condensation may occur.
Do not use substitute parts or modify as for the internal circuit. For repair or
modification, please contact us.
Do not foreign objects such as metal or liquid into the product through the
intake/exhaust ports, or other openings. It may cause malfunction, electric
shock, or fire.
Do not store or use the product in a place where conductive dust such as iron
powder may enter through the intake/exhaust ports. Doing so may cause a
short circuit, resulting in electric leakage, burnout, fire, or malfunction.
When welding near the product,disconnect all wires (input/output wiring, signal
wires) from the unit before the work.
Ensure safety in the event of a malfunction.
When the failure occurs, unplug the AC input cable from the outlet.
The product is a high voltage power supply.
Please read the instruction manual carefully and understand the safety instructions in order to prevent
death or serious injury.

3 Specifications
4
AMJ series
Specifications
3-1 Product Lineup
*See [4 External Appearance].
Output voltage
Output current
Output power
Model
Slew rate
Response
speed
Appearance
diagram*
[V]
[mA]
[W]
(-3dB)
-500 to +500
40
20
AMJ-0.5B40
150V/μs
DC to 75kHz
A
80
40
AMJ-0.5B80
DC to 75kHz
B
-1k to +1k
20
20
AMJ-1B20
DC to 40kHz
A
40
40
AMJ-1B40
DC to 40kHz
B
-1.5k to +1.5k
20
30
AMJ-1.5B20
DC to 25kHz
B
-2k to +2k
10
20
AMJ-2B10
DC to 18kHz
A
20
40
AMJ-2B20
DC to18kHz
B
-4k to +4k
10
40
AMJ-4B10
DC to 9kHz
B
・The voltage, current, and power shown in the table are output to the output terminals of the unit.
Never touch the output and sense terminals while the unit is running or just after turning it off.
・Please do not put frequencies exceeding the response speed on the input terminal of the external control voltage.

3 Specifications
5
AMJ series
3-2 Specifications
Item
Description
Input voltage
100V to 240Vac, 50/60Hz, single phase
Input power
150VA
Output voltage
control
External control voltage Vcon-in = -10 to +10Vdc*1
(Input impedance 10kΩ or more)
DC bias
Front panel 10-turn potentiometer enables setting between -100% and 100%.
Regulation
Line: ±0.05% (115V±10% input change)
Load: 0.05% (10% to 100% load change) *2
Ripple
0.1%p-p or less*2
Stability
0,016%/H (typ.)*2
Output display
3.5-digit digital meter*3
Output voltage
monitor
-10 to +10Vdc (BNC terminal on the front panel, Output impedance 1kΩ)
External output
ON/OFF
Output ON/OFF by external contact signal
(Short: ON, Open: OFF)
Protection
Overvoltage protection(OVP), Overcurrent protection (OCP),
Output-state auto-recovery prevention function, Output short circuit
Operating
temperature
0°C to +40°C
Storage
temperature
-20°C to +60°C
Relative humidity
20% to 80% RH (no condensation)
Operating
environment
Indoor use, OVC II *4
Pollution degree
Pollution degree 2 *5
Installation altitude
2000m or lower
*1: Offset voltage at Vcon-in = 0V is less than 0.5% of rated output.
*2: The value is at DC operation with resistance load maximum output.
*3: At DC output: DC voltage display. Output 10Hz or more: average voltage display
*4: Over Voltage Category
OVC II: Energy-consuming devices that are supplied with power from fixed equipment
*5: Pollution degree
Pollution degree 2: Only non-conductive pollution, except for temporary conductivity due to
condensation.

4 External Appearance
6
AMJ series
External Appearance
4-1 Type 20W
Model: AMJ-0.5B40/-1B20/-2B10
4-1-1 Front panel
(1)
POWER ON/OFF switch
(6)
Bias setting dial
(2)
HV ON/OFF switch
(7)
Output voltage monitor terminal
(3)
Output voltmeter
(8)
External output ON/OFF terminal
(4)
External voltage input terminal
(9)
Overcurrent protection setting terminal (-LCs option)
or Output current monitor terminal (-L1 option)
(5)
BIAS ON/OFF switch
4-1-2 Rear panel
(1)
Output connector
(3)
Fuse (3A)
(2)
GND terminal
(4)
AC input connector (100Vac to 240Vac)
(1)
(7)
(5)
(6)
(8)
(9)
(2)
(3)
(4)
or
Imoni
(1)
(4)
(2)
(3)

4 External Appearance
7
AMJ series
4-1-3 External dimensions
Unit: mm

4 External Appearance
8
AMJ series
4-2 Type 40W
Model: AMJ-0.5B80/-1B40/-1.5B20/-2B20/-4B10
4-2-1 Front panel
4-2-2 Rear panel
(1)
Output connector
(3)
Fuse (3A)
(2)
GND terminal
(4)
AC input connector (100Vac to 240Vac)
(1)
POWER ON/OFF switch
(6)
Bias setting dial
(2)
HV ON/OFF switch
(7)
Output voltage monitor terminal
(3)
Output voltmeter
(8)
External output ON/OFF terminal
(4)
External voltage input
terminal
(9)
Overcurrent protection setting terminal (-LCs option)
or Output current monitor terminal (-L1 option)
(5)
BIAS ON/OFF switch
(1)
(7)
(5)
(6)
(3)
(8)
(2)
(4)
(9)
or
Imoni
(1)
(4)
(2)
(3)

4 External Appearance
9
AMJ series
4-2-3 External dimensions
Unit: mm

5 INPUT/OUTPUT Connection
10
AMJ series
INPUT/OUTPUT Connection
To properly use the high-performance product featuring high stability and low ripple, follow the correct
connection and grounding procedures before operation.
5-1 Connecting AC Input Cable
5-1-1 AC Input Cable
Use the AC input cable suitable for the operation environment and regions. If there is no AC cable that
corresponds to the following, please prepare it by yourself.
Standard
Sold separately
CABLE TYPE 1
CABLE TYPE 3
125 V/10 A
For Japan and North America
250 V/10 A
For European nations (VDE, TUV)
If you want to use a power cable instead of the supplied AC input cable, it is recommended that the
length of the power cable be 2.5 meters or shorter in that there is a possibility of noise with the power
cable having a length of 2.5 meters or longer. In case the product is affected by noise, take appropriate
measures of noise suppression.
5-1-2 Precautions
Be sure to electrically ground the product with the AC input terminal. Otherwise, it is
dangerous for the user.
Do not use the supplied AC input cable in any other purposes.
AC input connections should be performed by a trained electrician, or personnel with a similar
level of knowledge who understands how to use this product correctly and who is familiar with the
risks involved.
Install a breaker between the AC main power and this product. The breaker should be located in
a position where you can easily handle it.
Be sure to cut off the AC input before connecting or modifying wires.
Before turning the AC input power on, make sure that all wiring is correct and that there are no
loose connections.
Confirm the input voltage according to the specifications of this instruction manual as well as the
indication on the unit, and then, input voltage within the specification range. Otherwise, it may
cause damage to the product.

5 INPUT/OUTPUT Connection
11
AMJ series
5-1-3 Installation Procedure
Attach the AC input cable to the AC input connector on the rear panel according the following
procedure.
1. Attach the connector of the supplied AC input cable to the AC input connector of the product.
2. Attach the plug of the supplied AC input cable to the outlet provided.
3. If the other end which is not equipped with a plug, attach cramp terminals there, and then, connect
them to a breaker.
Connect L (Live line), N (Neutral line), and (Ground).
The product has the AC fuse in the L.
Wrong connection may cause electric shock or fire.

5 INPUT/OUTPUT Connection
12
AMJ series
5-2 High-Voltage Output Cable
Follow the figures below to connect the high-voltage output cable.
For safety, be sure to ground the GND terminal of the unit at a single point as shown in the figure below.
a. No grounding
b. Grounding Load frame
Never touch the output terminal, load, and high-voltage output cable that have
high voltage. Take proper safety measures by mounting them in embeded
equipment, covering, etc.
Be sure to ground the GND terminal. Inappropriate grounding could cause
electric shock or damage to the product.
In case a short circuit or discharge of the load is expected, make the ground wire
thicker and shorter.
High-voltage output cable
GND terminal
Load frame
10AWG or more
Within about 2 meters
Do not use bare wire.
Handy case
Ground at a single point.
Ground
Load
Ground
10AWG or more
Within about 2 meters
Do not use bare wire.
High-voltage output cable
GND terminal
Ground at a single point.
Load frame
Handy case
Load