Com-Power CDN-AF4 Manuel utilisateur
Model CDN -AF4
COUPLING DECOUPLING
NETWORK
MODEL CDN-AF4
Model CDN -AF4
Warranty
Com-Power warrants to its Customers that the products it
manufactures will be free from defects in materials and
workmanship for a period of 2 years. This warranty shall not apply
to:
a) transport damages during shipment from your plant.
b) damages due to poor packaging.
c) product operated outside their specification.
d) improperly maintained or modified.
e) consumable items, fuses, power cords, cables, etc.
f) normal wear
g) calibration
h) product is shipped outside the United States without the prior
knowlege of Com-Power.
In addition, Com-Power shall not be obliged to provide service under
this warranty to repair damage resulting from attempts to install,
repair, service or modify the instrument by personnel other than
Com-Power service representative.
Under no circumstances does Com-Power recognize or assume
liability for any loss , damage or expense arising, either directly or
indirectly from the use or handling of this product, or any inability
to use this product seperately or in combination with other
equipment.
When requesting warranty services, it is recommended that
the original packaging material be used for shipping. Damage
due to improper packaging will void warranty.
In the case of a complaint, a label should be attached to the housing
of the instrument which describes briefly the faults observed. If at
the same time the name and telephone number (dialing code and
telephone or direct number or department designation) is stated
for possible queries, this helps towards speeding up the processing
of waranty claims. In order to obtain service under this warranty,
Customers must contact the Com-Power factory.
II
Model CDN -AF4
Safety Precautions
This instrument has left the factory in a safe condition. Proper safety
precautions must be observed in order to avoid injury to test
personnel. Prior to the connection of RF power, the CDN must be
securely fastened to the ground plane. Proper grounding ensures
the low impedance required for accurate immunity measurements.
Proper grounding must be verified after installation. The resistance
between the CDN grounding base plate and the ground plane should
indicate a value of 10 milli-ohms or less.
Power conductors to the mains should not be connected until all the
connections to the EUT, CDN, auxilary equipement and test
equipment are completed.
Test personnel should not touch any exposed test leads or terminals
during the test. After each test disconnect power conductors from
the mains and turn off power to the amplifier.
About this this manual
This manual provides instructions on how to operate and maintain
Model CDN-AF4 coupling decoupling network.
Information contained in this manual is property of Com-Power
Corporation. It is issued with understanding that none of this
material may be reproduced of copied without permission from
Com-Power.
If you need assistance:
Telephone: (949) 587-9800
Fax: (949) 587-9960
Email: Sales@Com-Power.com
III
Model CDN -AF4
Operating Enviroment
The instrument has been designed for indoor use only. It should
not be used in damp or wet enviorment. The permissible
ambient temperature range during operation is +10°C (+50°F)
to +40°C (+104°F). Please read the safety section.
Maintenance
There are no user serviceable parts inside these units. If the
unit does not operate or needs calibration, please return it to
the factory. Do not open instrument cover. Any modifications or
repairs performed on the unit by someone other than a
auhorized factory trained technician will void warranty.
The exterior surface may be cleaned with mild detergent and
then be wiped with a dry clean lint-free cloth. Do let any cleaning
agent seep into into the chassis.
IV
Model CDN -AF4
Content
Section Page
1 General Information ............................................................ 1-1
1.0 Introduction ..................................................................................... 1-1
1.1 General Description ...................................................................... 1-1
1.2 Specifcations .................................................................................. 1-1
1.3 Standard Accessories Supplied .................................................. 1-1
2 CDN Requirement ................................................................. 2-1
2.0 Overview ......................................................................................... 2-1
2.1 CDN Requirement ......................................................................... 2-1
2.2 Important CDN parameters.......................................................... 2-3
3.0 Calibration ....................................................................................... 2-3
4.0 Establishing drive table ................................................................. 2-4
4.1 Setting levels .................................................................................. 2-5
3 Theory of Operation.............................................................. 3-1
3.0 Overview ......................................................................................... 3-1
3.1 Typical test setup ........................................................................... 3-1
List of Figures
Figures.......................................................................................... page
1-1 CDN-AF4 Photo .............................................................................. 1-2
1-2 Typical terminal impedance........................................................... 1-3
1-3 Typical coupling factor .................................................................... 1-4
1-4 Typical attenuation factor ............................................................... 1-5
3-1 Conducted immunity setup ........................................................... 3-1
List of Tables
Tables............................................................................................ page
1-1 CDN-AF4 specifications ................................................................ 1-2
2-1 CDN parameters ............................................................................. 2-1
2-2 Required test levels ........................................................................ 2-5
V
Model CDN -AF4
General Information
This section includes the following
nIntroduction
nGeneral Description
nSpecifications
nStandard Accessories Supplied
1.0 Introduction
This section contains general description and performance
information on the Com-Power model CDN-AF4 Coupling
Decoupling Network (CDN). More detailed explanation on how
to use CDN is given in sections 2 and 3 of this manual.
1.1 General Description
The Com-Power CDN-AF4 Coupling / Decoupling networks
(CDN) is intended for testing products according to EN61000-
4-6 standard for immunity to conducted disturbance induced by
radio frequency fields from 150 kHz - 80 MHz. The CDN-AF4
couples common mode CW and modulated signals on to a
unshielded 4 conductor cable.
1.2 Specifications
Please see table 1-2 on page on next page.
1.3 Standard Accessories Supplied;
1. Coupling Decoupling Network
2. User's Guide
3. Calibration data- Impedance, attenuation,coupling factor
4. Certificate of calibration
Options if ordered: Jig with shorting bars, Two 150Ω- 50Ω, One
50 Ωadapter, one Ground plane
(Complete kit Part# CK-
1
1-1
Model CDN -AF4
Frequency Range: 150 kHz - 80 MHz
Cable type: Unshielded 4 conductor cable
Coupling: Each Conductor
Voltage: 160 VAC
Current: 2 Amps
Common mode impedance:
150 kHz - 26 MHz: 150 Ohms ± 20%
26 MHz - 80 MHz: 150 Ohms + 60% and - 45.5%
Maximum RF voltage input: 40 Vmax
Voltage attenuation (RF/EUT): 9 dB to 12 dB
Insertion loss EUT/AE:
30 dB min from 150 kHz to 2 MHz
50 dB min from 2 MHz to 80 MHz
Coupling factor: 0. dB, + 1 dB / - 2 dB
Decoupling attenuation (RF/AE): 50 dB min, 150 kHz - 80 MHz
I/O connections: Proffessional Audio Sockets
Note: The shield is not connected to
ground.
RF (Disturbance coupling) connector: BNC (f) 50 Ohm
Dimensions ( L x WX H): 12” x 6” x 6" inches
Weight : 4 lb.
1-2
Table 1-1 Specifications
Figure 1-1 Model CDN-AF4
Model CDN -AF4
Figure 1-2 CDN Model CDN-AF4 typical common mode impedance
1-3
Model CDN -AF4
Figure 1-3 CDN Model CDN-AF4 typical attenuation factor graph
1-4
Model CDN -AF4
Figure 1-4 CDN Model CDN-AF4 typical Coupling factor graph
1-5
Table des matières
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