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INSTRUCTION MANUAL

 

LI-125C 

LINE IMPEDANCE STABILIZATION NETWORK 

 

19121 El  T oro R d   ●  S il vera d o, Ca lifo rnia  926 76   ●   (94 9)  459 - 9600    ●  com - p ower.com

 

                

 

 

      REV011617   

8.0

 

  W

ARRANTY 

 

Com-Power warrants to its Customers that the products it manufactures will be free from 
defects  in  materials  and  workmanship  for  a period  of  three  (3)  years.  This  warranty  shall 
not apply to: 

 

Transport damages during shipment from your plant.   

 

Damages due to poor packaging. 

 

Products operated outside their specifications. 

 

Products Improperly maintained or modified. 

 

Consumable items such as fuses, power cords, cables, etc. 

 

Normal wear  

 

Calibration 

 

Products 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 representatives. 

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 separately or in combination with any 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. 

If  you  feel  that  the  product  is  not  working  as  intended,  or  is  malfunctioning,  please 
contact Com-Power for assistance. 

In the case of repair or complaint, Please visit our 

website 

www.com-power.com

  and  fill  out  RMA  form  (

http://com-

power.com/repairservicereq.asp

).  Our  customer  service  personnel 

The  RMA 

number  should  be  displayed  in  a  prominent  location  on  the  packaging  and  on  the  
product, along with a description of the problem, and your contact information.           

                 

 

8.1 Maintenance 

 

This product contain no user serviceable parts inside. If the unit does not operate 
or needs calibration, please contact Com-Power Corporation. Any modifications 
or  repairs  performed  on  the  unit  by  someone  other  than  an  authorized  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.  Use  care  to  avoid  liquids  or  other  foreign  objects 
entering the chassis. 

 

Distributed by: Reliant EMC LLC,  +1 408 916

5750,  [email protected], www.reliantemc.com

Содержание LI-125C

Страница 1: ... LI 125C LINE IMPEDANCE STABILIZATION NETWORK REV011617 INSTRUCTION MANUAL For LINE IMPEDANCE STABILIZATION NETWORK Model LI 125C 150 kHz to 30 MHz Distributed by Reliant EMC LLC 1 408 916 5750 info reliantemc com www reliantemc com ...

Страница 2: ... 11 6 0 LISN Theory 13 7 0 Typical Performance Data 14 8 0 Warranty 16 8 1 Maintenance 16 List of Figures Figure 1 Single Phase connection with one set of LISN 10 Figure 2 Three Phase connections with two sets of LISN 11 Figure 3 Rear Panel 11 Figure 4 Front Panel 11 Figure 5 Example of equivalent LISN circuit 13 Figure 6 Typical Impedance compared to ANSI C63 5 CISPR 16 1 2 requirements 14 Figure...

Страница 3: ...ety precautions operational instructions and warranty information and guidelines and instructions for its proper usage Information contained in this manual is the property of Com Power Corporation It is issued with the understanding that the material may not be reproduced or copied without the express written permission of Com Power Distributed by Reliant EMC LLC 1 408 916 5750 info reliantemc com...

Страница 4: ...Immunity Test Systems Impedance Stabilization Networks ISN Line Impedance Stabilization Networks LISN Antenna Masts Near Field Probe Sets Preamplifiers Power Amplifiers Spectrum Analyzers Product Safety Test Equipment Transient Limiters Turntables Antenna Tripods Telecom Test Systems 2 0 PRODUCTS AVAILABLE FROM COM POWER www com power com Distributed by Reliant EMC LLC 1 408 916 5750 info reliante...

Страница 5: ...tning bolt indicates an alert to the user that un insulated dangerous voltages are present within the product enclosure and on output connectors These voltages may be of sufficient magnitude to constitute a risk of electric shock to persons The Ground symbol inside a circle indicates terminal which is intended for connection to an external conductor for protection against electric shock in case of...

Страница 6: ...tificate External transient limiter model LIT 153 3 4 General Safety Instructions The following safety instructions have been included in compliance with safety standard regulations Please read them carefully READ AND RETAIN INSTRUCTIONS Read all safety and operating instructions before operating the instrument Retain all instructions for future reference HEED WARNINGS Adhere to all warnings on th...

Страница 7: ...ents for electrical equipment for measurement control and laboratory use In addition the basic insulation required for a category I protection device cannot be assured Therefore it is imperative to provide additional measures safeguarding against direct or indirect contact by user The operator is responsible for ensuring that protection is maintained during work with the line impedance stabilizati...

Страница 8: ...or ladder ENVIRONMENTAL CONDITIONS This equipment is designed for indoor use Ambient temperature range during operation should be between 5 C to 40 C STORAGE AND PACKAGING The device should only be stored at a temperature between 25 and 70 C During extended periods of storage protect the device from dust accumulation The original packaging should be used if the device is transported or shipped aga...

Страница 9: ... Number of lines Two lines Max current rating 25 Amp AC 17 Amp DC Max Voltage rating 270 VAC 50 60 Hz Line to Ground 380 VDC Inductor type 50 µH EUT Power connector Shrouded Superior Electric Banana Connector RF measurement connector 50Ω N type female Mechanical Dimensions of Each LISN L x W x H 13 x 7 x 7 inches 33 x 17 7 x 17 7 cm Weight of each LISN 6 lb 2 7 kg Environmental Operating Temperatu...

Страница 10: ...ements and couples the disturbance voltages to the coaxial measurement port for connection to the measuring instrument like EMI Receiver or Spectrum Analyzer 5 2 Product Setup Before initiating use of LISN ensure that PE conductor is connected to ground The ventilation openings are unobstructed No signal or operating voltages above the permissible limits given in specification The LISN s power inp...

Страница 11: ...connected to any power source protected by either a ground fault circuit interrupter GFCI circuit breaker or residual current devices RCDs The power source must be protected by a circuit breaker with a current rating which is greater than or equal to the rating of the LISN 5 3 2 Grounding bolt GND The threaded bolt with hex nut marked GND are found on both front and back panel of the LISN This bol...

Страница 12: ...des a 50 Ω N Type female connector to connecting the Spectrum analyzer or EMI receiver for making conducted noise measurements The shielding connection of the N connector shield is connected to the housing of the LISN and thus to ground Note CISPR recommends the use of 10 dB attenuator at the output of the LISN measurement port Also as the input circuitry of EMI receivers and spectrum analyzers ar...

Страница 13: ...rough the LISN with minimal attenuation This filter is comprised of a single stage low pass LC filter The inductors L used in the LI 125C are air core type to eliminate the possibility of saturation and to provide stability The LISN also provides a low impedance path for the RF noise from the EUT to the measuring equipment thereby facilitating the measurement of the EUT RF noise The insertion loss...

Страница 14: ...ents Figure 7 Typical Phase compared to CISPR 16 1 2 requirements 20 30 40 50 60 70 0 1 1 10 100 Impedance ohms Frequency MHz LISN Impedance CISPR 16 1 2 Ed 1 2 Tbl 4 50uH Impedance Limits 20 ANSI C63 4 2009 Tbl B 2 50uH Impedance Limits 20 20 10 0 10 20 30 40 50 60 70 0 1 1 10 100 Phase Angle degrees Frequency MHz LISN Phase CISPR 16 1 2 Ed 1 2 Tbl 4 50uH Phase Limits 11 5 Distributed by Reliant ...

Страница 15: ...olation compared to CISPR 16 1 2 requirements Figure 9 Typical Insertion Loss 20 30 40 50 60 70 80 90 100 0 1 1 10 100 Isolation dB Frequency MHz LISN Isolation CISPR 16 1 2 Edition 1 2 Isolation Limit Minimum 0 0 2 0 4 0 6 0 8 1 0 1 1 10 100 Insertion Loss dB Frequency MHz LISN Insertion Loss Distributed by Reliant EMC LLC 1 408 916 5750 info reliantemc com www reliantemc com ...

Страница 16: ...dling of this product or any inability to use this product separately or in combination with any 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 If you feel that the product is not working as intended or is malfunctioning please contact Com Power for assistance In the c...

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