Matsusada Precision Xpg Series User manual

Rev. 0.4
MODEL XPｇ Series
Instruction Manual
B/N124.9.004 *124.9.004*

Matsusada Precision
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 with respect 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
Matsusada Precision
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.
Please note that we will not be held responsible for any damage or loss caused by not following the
warnings, 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

ii
Matsusada Precision
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 and have already been 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, or operate the product, it may cause 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.

iii
Matsusada Precision
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 to avoid electric shock, ground the terminals to discharge using a short-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.

iv
Matsusada Precision
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 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.)

v
For Safe Use of the Product ⅰ
CONTENTS ⅴ,ⅵ
１Introduction 1
１－１ Introduction 1
１－２ Unpacking the POWER SUPPLY 1
１－３ Installation conditions 1
２Exterior View diagram 2
２－１ Front Panel 2
２－２ Details of Meter 2
２－３ Rear Panel 3
３Connection 4
３－１ Connection of GROUND 4
３－２ Connection of X-ray tube 4
３－３ Connection of HV connector 5
３－４ Connection of AC input cable 6
４Operation 7
４－１ Operation 7
４－２ Setting of filament limit 8
４－３ Protection 9
4-3-1 Blackout Protection 9
4-3-2 Over Voltage Protection (O.V.P.) 9
4-3-3 Over Current Protection (O.C.P.) 9
4-3-4 Over Temperature Protection(OT) 9
4-3-5 External voltage source limit 9
4-3-6 Filament protection 9
CONTENTS

vi
５Advanced Operation 10
５－１ Introduction 10
５－２ Function of TB1 interface connector 10
５－３ Changing internal control (INT)/external control (EXT) 11
５－４ External voltage control 12
5-4-1 Voltage control by external voltage 12
5-4-2 Anode current control by external voltage 12
５－５ Remote switch ON/OFF(LS) 12
５－６ Door switch（LD）= Interlock 13
５－７ Anode current monitor, Anode voltage monitor 14
5-7-1 Anode current monitor 14
5-7-2 Output voltage monitor 14
５－８ Output status signal 14
５－９ Remote reset 15
６Option 16
６－１ 100V input voltage(L(100V)) 16
６－２ Dual Filament (LDf) 16
６－３ Interlock/Blackout protection remote reset(LT1) 16

1
１ Introduction
1Introduction
１－１ Introduction
Thank you very much for your purchase of our product HIGH VOLTAGE POWER SUPPLY. We have done
our best for the quality control of the unit.
Please handle this unit properly according to this instruction manual so that you can use the full performance
of this unit safely for long.
We have carefully prepared this instruction manual, but if you find any doubtful or
unclear point or any omission, please kindly contact us shortly.
１－２ Unpacking the POWER SUPPLY
When unpacked the unit, you will please check the following accessories are enclosed with power supply
main body.
〈Accessories〉
・ AC input cord (1 pc)
・ Instruction manual (1 pc)
・ D-sub connector for interface(TB1) (1) * Attached on TB1 on rear panel
〈Initial Inspection〉
Before start operating, please check the panel and chassis for any apparent trace of impact such as a
dent. If any failure is found, contact the carrier and the manufacturer
１－３ Installation conditions
Warning
This unit is the high voltage power supply. Observe the safety precautions and operate correctly,
or an electric shock or a fatal accident may be caused.
Observe the following precautions in operating and inspecting this power supply, and use the unit
properly.
・ Install the power supply unit horizontally when use.
・ The top and side surfaces are the cooling air supply and exhaust openings. The power supply must be
arranged with adequate space and good ventilation.
・Do not put any object on the power supply unit.
・Do not operate the power supply in a dusty area or in corrosive gas environment.
・Do not use any substitute for the parts in the internal circuits or do not modify them without permission.
・This power supply is designed to a 19 inch rack. The chassis should be supported by the guide in
mounting. Never support it with the front panel mounting hole only.
・The front panel handle is used to change the direction of the power supply or pull out the power supply
mounted onto the rack. Do not use the handle with bearing the whole weight of the power supply on the
handle.
・Carefully handle the power supply with giving no impact in carrying. It is dangerous for a person to carry
the power supply alone due to the heavy weight of approx. 20kgs. Two persons or more should hold to
carry or a cart should be used to carry.
・Contact us for repair. The power supply should be repaired by Matsusada Precision.
！
NO
！

CAUTION
！ 
MUST
NO
NO
NO
NO
NO
！ 
MUST

2
２－１ Front Panel
２－２ Details of Meter
①
ＯＴ Inside over temperature.
②
ＬＤ Interlock is effective.
③
ＥＸＴ Remote mode.
④
ＳＦ Setting of focus size is small focus. (only –LDf option unit)
⑤
ＯＶＰ Over Voltage Protection is effective.
⑥
ＦＵＣ Insufficient filament current.
⑦
ＯＣＰ Over Current Protection is effective.
⑧ Anode voltage digital meter.
⑨ Anode current digital meter.
２ Exterior View diagram
２ Exterior View diagram
① POWER ON/OFF switch ④Meter
② OUTPUT ON/OFF switch ⑤Anode voltage setting dial
③ OUTPUT ON LED ⑥Anode current setting dial
Fig.２－１ Front panel
Fig.２－２ Details of Meter
ＯＴ
ＬＤ
ＥＸＴ ｋＶ ｍＡ OCP
FUC
①
②
③
⑧ ⑨
⑤
⑥
⑦
① ②
③ ④
OVPSF
④
⑤ ⑥

3
２ Exterior View diagram
２－３ Rear Panel
① GROUND terminal
② Output connector
③ Interface connector (TBI)
④ Filament limit setting dial (LF)
⑤ Filament limit setting dial (SF) (only -LDf option unit)
⑥ AC input connector
⑦ Exhaust holes
Ｎ Ｌ
OUTPUT
GND
S2 TB1
①
②
⑥
④
⑦
③
⑤
FILAMENT LIMIT
ＬF SF

4
３ connection
３－１ Connection of GROUND
For safety, make sure to ground the GROUND terminal of unit. Using D type wire of thicker than 5
SQ and shorter than 2 meter to ground the ground terminal of power supply at one point of ground.
Make sure to connect the unit to ground. Failure of grounding can cause electrical shock or failure of
power supply, and is very dangerous.
３－２ Connection of X-ray tube
Power supply and X-ray tube shall be connected as diagrams below.
For additional Safety, connect in order of x-ray tube first and then power supply. Refer 3-3 connection
of HV connector (P5) to the connection of HV connector.
a. Standard type
b. LDf option（Dual filament）type
！ 
MUST
！

CAUTION
C
S
L
C
S
L
C
S
L
or
Filament
Filament
transformer
Power supply X-ray tube
S and L are tied
together inside
C
S
L
C
S
L
Power supply X-ray tube
Filament
transformer
Filament
（ＬＦ）
Filament
（ＳＦ）
White
White
Red
Red
HV cable
HV cable
３ Connection

5
３ connection
３－３ Connection of ＨＶ connector
a. 80 to 160kVtype
① Use alcohol(IPA) to clean plug and receptacle to make sure there is no dust or stain on them.
② Attach the plug on plug flange.
③ Insert the plug straightly into receptacle to the end without putting silicone grease.
④ Adjust the position of plug flange so that the gap between plug flange and receptacle flange become 3
to 4mm, and then fasten the screws for flange.
⑤ Pull the plug out from receptacle, and put silicone grease. Put about 1cm of silicone grease on plug, and
about 0.5cm on receptacle evenly.
⑥ Insert the plug straightly into receptacle to the end and fasten the screws for connector (4) evenly.
⑦ Fasten the screws for connector(4) evenly to make the clearance 0mm.
1 or 2days after attaching the connector, fasten the screws for connection again.
Inspect to see if screws are not loose once in every 6 months.
Clearance ④ 3 to 4 mm → ⑦ 0mm
Screw for connector（4）
High voltage cable
Screw for flange
Receptacle
Plug
Receptacle flange
Plug flange
！ 
MUST

6
３ connection
b. under 60kVtype
① Use alcohol (IPA) to clean plug and receptacle to make sure there is no dust or stain on them.
② Put silicone oil on rubber gasket and silicone washer. (both side)
③ Insert the silicone washer into the contact pin on the end of plug.
④ Insert the plug into receptacle.
(position the nipple of plug on the dent of receptacle)
⑤ Fasten the ring nut.
⑥ Fasten the screw for ring nut.
３－４ Connection of AC input cable
Attach a solderless terminal at the end of AC input cable, and connect to commercial power board.
Input is AC200-240V 50/60Hz single phase. (AC100-120V for -L(100V) option unit)
Connect the power board as below
NEUTRAL ＝ White
LINE ＝ Black
EARTH（ ）＝ Green
High voltage cable
Ring nut
Screw for ring nut Rubber gasket
Nipple Silicon washer
Contact pins
In case ring nut became loose, silicone washer need to be replaced to new parts. Please
contact customer support for new parts.
！ 
CAUTIO

7
４ operation
WARNING
This power supply generates High Voltage and High energy. Because there is danger of death or
serious injury by electrical shock handle the unit carefully according to the following instruction.
CAUTION
Never remove the top cover of unit when operation.
４－１ Operation
1. Make sure that the Power switch is OFF position(0)
2. Turn Anode voltage setting dial(VOLTAGE) and Anode current setting dial(CURRENT) counterclockwise,
and verify that they are in “0” position.
3. Make sure the appropriate connection to the power supply before operation. For safety, make sure to
connect the ground terminal to the ground.
4. Turn on the Power ON/OFF switch, then the meter indication lights up and the unit is to be in stand-by
mode.
5. Turn on the OUTPUT ON/OFF switch, then the OUTPUT ON LED blinks, and the unit is to be ready for
output(enable). (When turning on OUTPUT ON/OFF switch, wait more than 10 seconds after turning on
POWER ON/OFF switch)
6. Set the filament limit(P8 4-2) (required only at the first operation or replacing the X-ray tube)
7. Turn the Anode voltage setting dial(VOLTAGE) to set the desired voltage.
(When the anode voltage setting is less than 3kV, filament protection function become effective, and there
will be no anode current)
Turn the Anode current setting dial(CURRENT) to set the desired current.
If you need to maintain the set voltage・current,
turn the locking lever on the dial to the direction of arrow mark to lock the setting.
Set anode voltage・current are indicated in the meter on front panel.
8. To quit the operation of power supply, turn off OUTPUT ON/OFF switch and then off POWER ON/OFF
switch.
！ 
！ 
Locking
lever
〈Setting dial〉
４ Operation

8
４ operation
４－２ Setting of filament limit
Set the filament limit according to the following instruction when operate the power supply for the first time,
or after X-ray tube is replaced.
1. Turn Anode voltage setting dial(VOLTAGE) and Anode current setting dial(CURREN) counterclockwise,
and verify they are in “0” position.
2. Turn the filament limit setting dial on the rear panel counterclockwise to “0” position.
3. Turn on POWER ON/OFF switch, and then on OUTPUT ON/OFF switch.
4. Set Anode voltage setting dial(VOLTAGE) to have minimum anode voltage to be operated.
5. Set Anode current setting dial(CURRENT) to have maximum anode current to be operated. At that time
FUC(Filament Under Current) LED lights up, and no anode current. With the following formula, calculate
the setting scale of dial, and set it by turning setting dial(CURRENT)
<ex> Set to 5mA with XPg-60N20
6. Turn filament limit setting dial on rear panel slowly clockwise until FUC(Filament Under
Current) LED turns off and power supply draw the set anode current.
7. Reset the filament limit setting dial to 10% more of the value set in the above 6.
8. Verify that the unit can draw the fixed anode current in the anode voltage range of
operation. In case unit cannot draw enough anode current, turn the filament limit setting dial
slowly clockwise.
9. Unit with LDf option(dual filament) need filament limit setting for both large focus spot(FL)
and small focus spot(SF)
Setting Scale ＝ １０ × Setting anode current（mA）
Rated output current（mA）
１０ × ＝ ２．５
５
２０
Setting of anode voltage and current must not be beyond the ratings of x-ray tube to be used,
or it can cause the failuve of x-ray tube to be used.
Do not set the filament limit unnecessarily high.
It can cause the short life or failure of x-ray tube.
NO
NO

9
４ operation
４－３ Protection
4-3-1 Blackout protection
This unit is equipped with a circuit for prevention of action once again when the power failure is
corrected. Even if power failure condition is corrected while OUTPUT on, the unit does not resume
output. In order to reset power failure condition, turn off the HV ON/OFF switch and turn it on once
again.
4-3-2 Over Voltage Protection (O.V.P.)
This unit is equipped with the over voltage protection. The voltage is to be tripped at approx. 110% of
the maximum rated voltage even if any abnormality occurs, and OVP LED lights on. In order to reset
OVP, turn off POWER ON/OFF switch and turn it on again.
O.V.P. ―― Over Voltage Protection
4-3-3 Over Current Protection (O.C.P.)
This unit is equipped with the over current protection. For over current within 5 seconds, the current is
to be limited at 110% of maximum rated output, and for over current more than 5 seconds, the high
voltage output is to be cut off with OCP LED lights on. In order to reset OCP, turn off OUTPUT ON/OFF
switch and turn it on again.
O.C.P. ―― Over Current Protection
4-3-4 Over Temperature Protection(OT)
This unit is equipped with the built-in circuit to cut off the high voltage output when the internal
temperature gets more than the set temperature. Once OT is effective, OT LED lights on until the
internal temperature gets lower than the set temperature. In order to reset OT, turn off OUTPUT
ON/OFF switch after verifying that OT LED lights off, and turn it on again. .
4-3-5 External voltage source limit
This unit is equipped with external voltage source limite. To protect the power supply and X-ray tube, the
voltage is limited to approx 108% of the maximum rated voltage even if any abnormality occurs.
4-3-6 Filament protection
This unit is equipped with filament protection. When the anode voltage is less than 3kV, emission control
of filament power supply is to be cut off to protect X-ray tube.

10
５－１ Introduction
This section explains Remote Programming Operation.
Remote operation enables such functions as external control or monitor.
By using GP-IB/IEEE488 or RS 232C adapter (option), it is possible for the computer to operate power
supply variously.
５－２ Function of TB1 interface connector
List 5-1 Function of TB1 interface connector
TB1 SIGNAL PARAMETER
1 Remote Voltage Program In 0 to 10Vdc = 0 to 100% rated output
2 Remote Current Program In 0 to 10Vdc = 0 to 100% rated output
3 Output Anode Current Monitor 0 to 10Vdc = 0 to 100% rated output
4 Spare（out of use）
5 Common（GND of Power Supply） Common for 1 , 2 , 3 , 14 , 15
6 Spare（out of use）
7 Door switch（Interlock） Short = Output ON
8 Remote reset Short = reset(only for OCP)
9 Focus size change(only for –LDf option) Short = Small focus Open = Large focus
10 Spare（out of use）
11 Spare（out of use）
12 Spare（out of use）
13 Spare（out of use）
14 Reference Reference +10.24V，4mA MAX output
15 Output Anode Voltage Monitor 0 to 10Vdc = 0 to 100% rated output
16 Spare（out of use）
17 Common（GND of Power Supply） Common for 7 , 8 , 9, 19 , 20 , 21
18 Spare（out of use）
19 Output Status Output ON = internal relay contact is ON.
20 INT/EXT Short = EXTERNAL Open = INTERNAL
21 Remote switch Short = Output ON Open = Output OFF
22 Spare（out of use）
23 Spare（out of use）
24 Spare（out of use）
25 Spare（out of use）
1 13
14 25
S2 TB1
Fig 5-1 TB1 Connector，S2 Swicth
５ Advanced Operation
５ Advanced Operation

11
５－３ Changing internal control (INT)/external control (EXT)
Use the external switch to select controlling the front panel setting dial or the rear panel TB1 interface
connector.
Select to EXT, and the output anode voltage and the output anode current can be set with the external
voltage source. Simultaneously the front panel “EXT" is ON.
INT/EXT change can be made by sending command when GP-IB, RS-232C(separate item) are used.
When the GP-IB and RS-232C control cable is attached to the rear TB1,the power supply cannot operate
alone.
＊1Note when open collector is used
Follow the provision below when use open collector
Fig 5-2 Definition of open collector
OUTPUT
Switch
Open collector
ON
Short
VCE
Under 0.4V
(10mA)
OFF
Open
VCE
Over 2V
(Open 5V)
TB1
“L”= EXT
Switch 2
Switch 2 open = INT
Switch 2 short = EXT
Ｅ
Ｃ
Fig 5-3 Diagram INT/EXT change circuit
16
17
18
19
20
4
5
6
7
5V
５Advanced Operation

12
５－４ External voltage control
5-4-1 Voltage control by external voltage
0-10Vdc external voltage can control the output voltage within the range of 0-100%.
However, anode voltage is set under 3kV, due to the filament protection function, there shall be no anode
current.
5-4-2 Anode current control by external voltage
0-10Vdc external voltage can control the anode current within the range of 0-100%
５－５ Remote switch ON/OFF(LS)
The remote switch can select the output to ON/OFF. (Open collector can be also used.)
When the output is ON, the front panel OUTPUT LED lights on.
When the unit is shipped from factory, a metal connector short Pin17 and Pin21, and the remote
switch is set to ON.
TB1
Anode current control
Fi
g
5-3 Dia
g
ram of external volta
g
e control circuit
Anode voltage control
Zin=1MΩ
0-10Vdc
Zin=1MΩ
0-10Vdc
14
15
16
17
18
19
20
1
2
3
4
5
6
7
“L” = Output ON
Switch 3
Fig 5-4 Diagram of remote switch circuit
17
18
19
20
21
4
5
6
7
8
TB1
Switch 3 open
= Output OFF
Switch 3 short
= Output ON
Regulation of external voltage will directly affect the output.
Select the high regulation voltage source.
！ 
CAUTION
！ 
CAUTION
５ Advanced Operation