NoiseKen NKU2460G User manual

INSTRUCTION MANUAL
INSTRUCTION MANUAL
INSTRUCTION MANUAL
B
roadband
NOISE LABORATORY CO., LTD.
INSTRUCTION MANUAL
roadband
MODEL
NOISE LABORATORY CO., LTD.
INSTRUCTION MANUAL
roadband
sleeve
NKU2460G
NOISE LABORATORY CO., LTD.
INSTRUCTION MANUAL
sleeve
antenna
NKU2460G
NOISE LABORATORY CO., LTD.
INSTRUCTION MANUAL
antenna
NKU2460G
NOISE LABORATORY CO., LTD.
INSTRUCTION MANUAL
AEY
00091
INSTRUCTION MANUAL
Edition
1.00
00091
-00E-0
A
1.00
A

NOTICE
• The contents of this instruction manual (the “Manual”) are subject to change without prior
notice.
• No part of the Manual may be reproduced or distributed, in any form or by any means,
without the authorization of Noise Laboratory Co., Ltd. (the “Company”).
• The contents of the Manual have been thoroughly examined. However, if you find any
problems, misprints, or missing information, please feel free to contact our sales agent
who you purchased our product from.
• The Company assumes no responsibility for any loss or damage resulting from improper
usage, failure to follow the Manual, or any repair or modifications of this product
undertaken by a third party other than the Company or the agent authorized by the
Company.
• The Company assumes no responsibility for any loss or damage resulting from
remodeling or conversion solely undertaken by the user.
• Please note that the Company cannot be held responsible for any consequences arising
from the use of this product.

1
The instrument may only be used by trained EMC technicians
(electrical technicians)
Failure to follow this rule risks death or serious injury.
The instrument may not be used by people fitted with
electronic medical devices such as pacemakers and such
people may not enter the testing site while the instrument is
operating
The medical device may malfunction since the instrument emits more
electromagnetic wave than the regulated value.
To prevent people from being exposed to radio waves, use the
product according to the protection guidelines defined by
ICNIRP.
Do not hold the product directly with your hands.
Do not use the instrument for any purposes other than the
EMC testing purposes described in this instruction manual .
The instrument is not supposed to be used in manufacturing process of a
factory. Take an appropriate measure, such as installing the product in a
Faraday cage or shielded room, against electromagnetic noise.
The instrument may not be used in a location where fire is
prohibited or there is a risk of explosion
1.IMPORTANT SAFETY PRECAUTIONS
The "Important Safety Precautions" explain rules that must be followed to prevent any risk of
harm or injury to the user of the instrument or to other people.
Before setting up the test site, connecting the equipment, or
starting testing, please read the Chapter entitled "Basic Safety
Precautions for the Safe Use of the Simulator" which contains
additional safety advice.
※
※※
※When using the product, follow the regulations on radio waves in your country/area.

Memorandum
2

3
2.APPLICATION FORM FOR INSTRUCTION MANUAL
To: Noise Laboratory Co., Ltd. via sales agent
We place an order for an instruction manual.
Model Name
NKU2460G
Serial No.
Applicant Address
Cut Line
Company Name
Department
Contact Person
Phone No.
FAX No.
Cut off this page "PURCHASE ORDER FOR
INSTRUCTION MANUAL" from this volume and
keep it for
future use with care.
When an INSTRUCTION MANUAL is required, fill in the above Application
Form and mail or fax it to your nearest sales agent of Noise Laboratory or Noise
Laboratory.
Cut Line
The address, company name, individual's name, and other personal information
(henceforth referred to as "personal information") entered in the application
form will only be used for the purpose of sending the Instruction
Manual and will
not be shown or passed to any third party without a valid reason.
Noise Laboratory Co., Ltd. will manage customer's personal information in an
appropriate manner.

Memorandum
4

5
3.TABLE OF CONTENTS
1. IMPORTANT SAFETY PRECAUTIONS ..................................................................................... 1
2. APPLICATION FORM FOR INSTRUCTION MANUAL ............................................................ 3
3. TABLE OF CONTENTS ............................................................................................................... 5
4. INTRODUCTION ......................................................................................................................... 6
5. BASIC SAFETY PRECAUTIONS ................................................................................................... 7
5-1. S AFETY W ARNING S IGNS AND T HEIR M EANINGS ....................................................................... 7
5-2. B ASIC S AFETY P RECAUTIONS ..................................................................................................... 7
6. PRODUCT COMPONENTS ......................................................................................................... 9
7. MEASUREMENT OF VSWR CHARACTERISTIC.................................................................... 10
. OPERATION ............................................................................................................................... 11
9. CHARACTERISTIC DATA ......................................................................................................... 12
9-1. E LECTRIC FIELD STRENGTH DISTRIBUTION .............................................................................. 12
10. SPECIFICATIONS .................................................................................................................. 15
11. WARRANTY ............................................................................................................................ 16
12. MAINTENANCE ..................................................................................................................... 1
13. CONTACTING TECHNICAL SUPPORT ............................................................................... 19

6
4.INTRODUCTION
We thank you very much for your purchase of the Broadband sleeve antenna Model:
NKU2460G. It is recommended that the contents of this manual be thoroughly understood
and used as a ready reference for operation.
This Instruction Manual was prepared so that any person who can observe the prescribed
instruction method and operating precautions may safely handle and fully utilize this NKU2460G.
Keep this Instruction Manual by your side or other proper location so that it may be readily available
when using the NKU2460G.
The product accepts the following maximum input power in each of the frequency ranges shown
below.
2.4 GHz～6.0 GHz・・10 W / continuous
§Features
①：Test antenna for evaluating immunity, designed to simulate electromagnetic waves from radio
equipment.
②：Wide frequency range from 2.4 GHz to 6.0 GHz .
③：Compact, lightweight, flat antenna enabling irradiation tests to be conducted even in confined
spaces.
④：Structure and characteristics of a sleeve antenna having a broadened bandwidth.
⑤：Passive antenna also usable for reception.
Antenna pattern of NKU2460G (image)
Radiation element
Ground element
Cable(semi-rigid)
Connector

7
5. BASIC SAFETY PRECAUTIONS
5-1. Safety Warning Signs and Their Meanings
Indicates Warning.
Failure to follow this safety information can lead to a
potentially hazardous situation resulting in death or
serious injury.
Indicates Caution.
Failure to follow this safety information can lead to a
potentially hazardous situation resulting in a minor
injury or moderate damage.
5-2. Basic Safety Precautions
1. Do not use this unit in areas where open flames are prohibited or areas having an explosive atmosphere.
Electrical discharges can occur during use, which can cause these atmospheres to ignite. (Precaution
regarding personal safety and environment)
2. Do not allow people with pacemakers or other electronic medical devices to operate this unit and to enter
the testing area while this unit is operating. Failure to observe this can result in malfunctions in the
electronic medical device and endanger personal safety. (Precaution regarding personal safety and
operation)
3. To prevent people from being exposed to radio waves, use the product according to the protection
guidelines defined by ICNIRP. Do not hold the product directly with your hands. (Precaution regarding
personalsafety,operation,andenvironment)
4. Noise Laboratory and our affiliated dealers are not liable for any injuries or equipment damage due to
improper operation of this unit or for any resulting incidental damages. (Precaution regarding personal
safety, operation, environment, and connection)
5. When operating this unit, do not leave the equipment unmonitored. Before leaving this unit, be sure to turn off
testequipmentpowerandterminatetesting.
If you fail to observe this, you could endanger people in the surrounding area and testing equipment.
(Precautionregardingpersonalsafety,operation,andenvironment)
6. Do not use or store in environments with extremely hot or cold temperatures. If you cannot maintain a
suitable operating environment (temperature: 15°C to 35°C, humidity: 25% to 75%), the unit can be
damaged and result in impaired performance. (Precaution regarding environment)
7. In the event that condensation forms, be sure that the unit is fully dried before starting operation. Failure to

8
observe this can damage the unit and result in impaired performance. (Precaution regarding environment)
8. Avoid using the unit in locations with high humidity orexposed to large amounts of dust. Failure to observe
this can damage the unit and result in impaired performance. (Precaution regarding environment)
9. Any required repairs, maintenance, and internal adjustment for this unit must be performedonly by service
engineers authorized by Noise Laboratory. Failure to observe this can result in impaired performance.
10. Do not wipe the unit with thinner, alcohol, or other solvents. If the unit is dirty, wipe with a cloth dipped in
neutral detergent after it is fully wrung out. Wiping with a solvent can damage the unit surface.
11. Ensure that the product is used according to the specifications. Otherwise, the product may burn.
Do not use the product for longer time than specified. Do not input power higher than the maximum
input power specified.

9
6.PRODUCT COMPONENTS
Main Unit (NKU2460G)
Instruction Manual (this document)

7.
The product allows you to measure VSWR characteristics using
the VSWR of the product and comparing it with the reference characteristics, you can check the
characteristics of the product.
【Caution
】
・
Connect a high
・
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
floor.
・
Do not touch the product or coaxial cable during a calibration process.
・
Depending on the type and length, the coaxial cable may affect the VSWR
product, resulting in nonconformance to the specifications.
Network analyzer
MEASUREMENT
The product allows you to measure VSWR characteristics using
the VSWR of the product and comparing it with the reference characteristics, you can check the
characteristics of the product.
】
Connect a high
-
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
Do not touch the product or coaxial cable during a calibration process.
Depending on the type and length, the coaxial cable may affect the VSWR
product, resulting in nonconformance to the specifications.
Network analyzer
NKU2460G
Jig
MEASUREMENT
The product allows you to measure VSWR characteristics using
the VSWR of the product and comparing it with the reference characteristics, you can check the
characteristics of the product.
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
Do not touch the product or coaxial cable during a calibration process.
Depending on the type and length, the coaxial cable may affect the VSWR
product, resulting in nonconformance to the specifications.
Measurement
NKU2460G
More than 1m
MEASUREMENT
OF
The product allows you to measure VSWR characteristics using
the VSWR of the product and comparing it with the reference characteristics, you can check the
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
Do not touch the product or coaxial cable during a calibration process.
Depending on the type and length, the coaxial cable may affect the VSWR
product, resulting in nonconformance to the specifications.
Measurement
VSWR of
r
More than 1m
10
OF
VSWR
The product allows you to measure VSWR characteristics using
the VSWR of the product and comparing it with the reference characteristics, you can check the
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
Do not touch the product or coaxial cable during a calibration process.
Depending on the type and length, the coaxial cable may affect the VSWR
product, resulting in nonconformance to the specifications.
Measurement
environment example
r
eference characteristics
More than 1m
More than 1m
VSWR
CHARACTERISTIC
The product allows you to measure VSWR characteristics using
a network analyzer.
the VSWR of the product and comparing it with the reference characteristics, you can check the
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
Do not touch the product or coaxial cable during a calibration process.
Depending on the type and length, the coaxial cable may affect the VSWR
product, resulting in nonconformance to the specifications.
environment example
eference characteristics
C
oaxial cable that supports high
frequencies up to 6 GHz
More than 1m
More than 1m
CHARACTERISTIC
a network analyzer.
the VSWR of the product and comparing it with the reference characteristics, you can check the
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
Do not touch the product or coaxial cable during a calibration process.
Depending on the type and length, the coaxial cable may affect the VSWR
characteristics of the
environment example
eference characteristics
oaxial cable that supports high
frequencies up to 6 GHz
More than 1m
CHARACTERISTIC
a network analyzer.
By measuring
the VSWR of the product and comparing it with the reference characteristics, you can check the
frequency, coaxial cable that supports high frequencies up to 6 GHz.
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
characteristics of the
oaxial cable that supports high
frequencies up to 6 GHz
CHARACTERISTIC
By measuring
the VSWR of the product and comparing it with the reference characteristics, you can check the
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the
characteristics of the
oaxial cable that supports high
By measuring
the VSWR of the product and comparing it with the reference characteristics, you can check the
Use the product upright with a distance of at least 1 m from any wall, ceiling, and metal body on the

Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
approximately 0.57 N·
The product is a linear
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
the product to a desired area
※
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
expose you to electromagnetic waves exceeding the protection
Use an optionally
Ensure that the product is used according to the specifications. Otherwise, the product may burn
or the characteristics of it may be affected.
Depending on the environment, the continuous use of the
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
mainly generates the heat. The feeding point is as shown below.
Pay extra care not to suffer a burn due to high temperatures.
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
approximately 0.57 N·
The product is a linear
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
the product to a desired area
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
expose you to electromagnetic waves exceeding the protection
Use an optionally
available flexible antenna handle
Ensure that the product is used according to the specifications. Otherwise, the product may burn
or the characteristics of it may be affected.
Depending on the environment, the continuous use of the
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
mainly generates the heat. The feeding point is as shown below.
Pay extra care not to suffer a burn due to high temperatures.
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
approximately 0.57 N·m.
The product is a linear
-
polarized antenna.
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
the product to a desired area
.(refer to 9
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
expose you to electromagnetic waves exceeding the protection
available flexible antenna handle
Ensure that the product is used according to the specifications. Otherwise, the product may burn
or the characteristics of it may be affected.
Depending on the environment, the continuous use of the
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
mainly generates the heat. The feeding point is as shown below.
Pay extra care not to suffer a burn due to high temperatures.
Area surrounding the feeding point
Ensure that this section is
close to the desi
8.
OPERATION
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
polarized antenna.
Horizontally or vertically apply the product to a desired
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
.(refer to 9
-1)
Use of
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
expose you to electromagnetic waves exceeding the protection
available flexible antenna handle
Ensure that the product is used according to the specifications. Otherwise, the product may burn
or the characteristics of it may be affected.
Depending on the environment, the continuous use of the
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
mainly generates the heat. The feeding point is as shown below.
Pay extra care not to suffer a burn due to high temperatures.
Area surrounding the feeding point
Ensure that this section is
close to the desi
11
OPERATION
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
Horizontally or vertically apply the product to a desired
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
Use of
NKU
2460G
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
expose you to electromagnetic waves exceeding the protection
available flexible antenna handle
(02-
00154
Ensure that the product is used according to the specifications. Otherwise, the product may burn
or the characteristics of it may be affected.
Depending on the environment, the continuous use of the
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
mainly generates the heat. The feeding point is as shown below.
Pay extra care not to suffer a burn due to high temperatures.
Area surrounding the feeding point
Ensure that this section is
close to the desi
red device.
OPERATION
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
Horizontally or vertically apply the product to a desired
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
2460G
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
expose you to electromagnetic waves exceeding the protection
-
guideline value defined by ICNIRP.
00154
A).
Ensure that the product is used according to the specifications. Otherwise, the product may burn
Depending on the environment, the continuous use of the
product for a long time may cause the product
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
mainly generates the heat. The feeding point is as shown below.
Pay extra care not to suffer a burn due to high temperatures.
Area surrounding the feeding point
Ensure that this section is
red device.
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
Horizontally or vertically apply the product to a desired
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
guideline value defined by ICNIRP.
Ensure that the product is used according to the specifications. Otherwise, the product may burn
product for a long time may cause the product
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
Horizontally or vertically apply the product to a desired
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
guideline value defined by ICNIRP.
Ensure that the product is used according to the specifications. Otherwise, the product may burn
product for a long time may cause the product
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
Horizontally or vertically apply the product to a desired
area. The area indicated as High Radiation Area radiates strongest electromagnetic waves. Appl
y
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
guideline value defined by ICNIRP.
Ensure that the product is used according to the specifications. Otherwise, the product may burn
product for a long time may cause the product
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
cool it before resuming the use of it. If the antenna becomes hot, the area surrounding the feeding poi
nt
Connect a coaxial cable to the SMA connector side of the product. When connecting the coaxial
cable to the product, use a torque wrench to tighten the SMA connector with a torque of
Horizontally or vertically apply the product to a desired
y
Do not hold the product directly with your hands. Doing so may affect the characteristics as well as
Ensure that the product is used according to the specifications. Otherwise, the product may burn
product for a long time may cause the product
to become hot and burn even if the specifications are met. If this is the case, stop using the product and
nt

9-1. Ele
ctric field strength distribution
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
Flexible handle
2450MHz
3200
MHz
9.
CHARACTERISTIC
ctric field strength distribution
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
Flexible handle
(02-
00154A) use
2450MHz
MHz
CHARACTERISTIC
ctric field strength distribution
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
00154A) use
82.40V/m
60.12V/m
12
CHARACTERISTIC
ctric field strength distribution
Electric Field strength (measured value) is a reference value.
00154A) use
82.40V/m
60.12V/m
CHARACTERISTIC
D
Electric Field strength (measured value) is a reference value.
2
3500
D
ATA
Electric Field strength (measured value) is a reference value.
Electric field direction
2
600MHz
3500
MHz
Electric field direction
77.41V/m
74.19V/m
Y axis
77.41V/m
74.19V/m

1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
Flexible handle
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
Flexible handle
(02
3800
MHz
5250
MHz
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
(02
-
00154A) use
MHz
MHz
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
00154A) use
83.48V/m
88.97V/m
13
Electric Field strength (measured value) is a reference value.
83.48V/m
88.97V/m
Electric Field strength (measured value) is a reference value.
Electric
4500
5800
Electric
field direction
4500
MHz
5800
MHz
field direction
Y axis
79.02V/m
86.06V/m
Y axis
79.02V/m
86.06V/m

1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
Flexible
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
Flexible
handle (02
6000
MHz
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
handle (02
-
00154A) use
MHz
1W net input; 50mm distance
Electric Field strength (measured value) is a reference value.
00154A) use
85.40V/m
14
Electric Field strength (measured value) is a reference value.
Electric Field strength (measured value) is a reference value.
Electric field direction
Electric field direction
Electric field direction
Y axis
Y axis

15
10. SPECIFICATIONS
Item Spec./Performance
Frequency range 2.4GHz～6.0GHz
VSWR ≦2.0
Maximum power input 10W / continuous
Input impedance
50 Ω(typ)
Connector SMA(J)
Operating temperature range 15～35 ℃
Operating humidity range 25～75 ％
Dimensions W35mm×H108mm×D10mm
(See diagram below)
Weight Approx.20 g
●Dimensions
・ Front
・ Side
10
113.8
108
35

16
11. WARRANTY
Servicing terms
The following terms are applicable to servicing by Noise Laboratory Co., Ltd., (hereafter referred to as
the Company) provided to maintain the intended performance of its products.
1. Scope
The following terms shall apply only to products made by the Company.
If the user or unauthorized service person should open the cover or case of the product
which cannot be allowed to open, this warranty prescription becomes ineffective.
2. Technical servicing fee
In the event of a failure of a product within the warranty period (see warranty section), the
Company will repair a product without charge. After the warranty expires, repairs will be
billed at a nominal cost.
3. Ownership of replacement parts
Any faulty parts replaced in the course of repair services shall belong to the Company. In the
case when repairs are billed to the customer, replaced faulty parts will be retained by the
Company unless other arrangements are made.
4. Limited liability
In the event that damages resulting from servicing by the Company are intentional or
caused by negligence, the Company will pay the cost but at the purchase value of the
relevant product maximum. But, notwithstanding the foregoing, the Company shall not be
responsible for any incidental or consequential damages of any nature, including without
limitation thereof loss of would-be profit or compensation demanded from a third party.
5. Incorrect parts, missing parts, and damage
In the event that the Company’s product purchased by the customer has incorrect parts,
missing parts, or is damaged, such that the product is not able to be used, the Company
accepts no liability for any losses incurred by the customer that relate to lost earnings,
commercial losses, other secondary losses, special losses, or indirect or punitive losses.
Nor is any liability accepted for any losses resulting from a responsibility of the customer to
compensate any third party.
6. Refusal to provide repair services
The company may not accept a repair order in the following cases:
More than 5 years have passed since the product discontinued
More than 8 years have passed after delivery
Required component for servicing already discontinued and no alternative is available.
Product changed, repaired or remodeled without obtaining a prior permission from the
Company.
Product severely damaged to the extent it has lost its original form

17
Limited Warranty
Noise Laboratory Co., Ltd. (hereafter referred to as the Company) warrants its products to be free
from defects in materials and workmanship under normal use and service for a period of one year
from date of delivery. In the event of failure of a product covered by this warranty, the Company will
repair the product or may, at its option, replace it in lieu of repair without charge.
Notwithstanding the foregoing, the Company shall not be responsible for any incidental or
consequential damages of any nature, including without limitation thereof loss of would-be profit or
compensation demanded from a third party. This warranty is valid only in Japan.
1. Scope
This warranty shall only apply to products made by the Company.
2. Period
One year from date of delivery.
The warranty may be valid in 6 months after servicing if the same failure on the same
component has repeated.
3. Exclusions
The followings are exclusions from this warranty:
Consumable parts (including mercury relay, HV relay, coaxial cable, coaxial connector,
automatic switch, and contactor)
Failure caused by misuse, neglect, accident or abnormal conditions of operation
Failure caused by remodeling on the user side without prior permission from the
Company
Failure caused by servicing by unauthorized personnel by the Company
Failure due to fore majeure including but not limited to, acts of God, fire, war, riot,
rebellion and others
Failure due to shock or drop in or after transit
Failure due to operation in environment being out of ambient specifications.
A unit shipped to overseas

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12. MAINTENANCE
1. When repair, maintenance or internal adjustment of the unit is required, a qualified service engineer
takeschargeofsuchwork.
2. Maintenanceontheusersideisrestrictedtotheoutsidecleaningandfunctionalcheckoftheunit.
3. When checking or replacing the fuse, turn off the switch of the unit and disconnect the plug socket
beforehand.
4. When cleaning the unit, turn off the switch of this unit and the connected equipment and disconnect
theplugsocketbeforehand.
5. Avoid using chemicals for cleaning. Otherwise, the coating of the unit may peel off or the sight glass
maybebroken.
6. Donotopenthecoverofthisunit.