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INSTRUCTION MANUAL

 

LI-1100C 

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

 

                

 

 

      REV022717   

 

POWER  SOURCES 

-  Connect  the  instrument  only  to  the  type  of  power 

source  described  in  the  operating  instructions  or  as  marked  on  the 
instrument. 

 

GROUNDING

  -  Take  precautions  to  insure  that  the  grounding  of  the 

instrument  is  not  defeated.  Grounding  conductor  with  adequate  cross-
section  must  be  connected  between  a  grounding  conductor 
connection  for  the  measurement  area  and  the  grounding  conductor 
connection (grounding bolt) on the back/front panel of the LISN and the 
LISN bottom plate, before applying any power to the LISN. At shutdown 
or  before  dismantling  the  LISN  setup,  ensure  that  the  power  to  LISN  is 
discontinued before the ground conductor connection is disconnected.

 

 

 

CAUTION: 

The  LI-1100C 

is  based  on  the  50Ω/50  µH  artificial  mains  network  (AMN) 

circuit and component values (Figure 3) specified in ANSI  C 63.4 

 2009 

American  National  Standard  for  Methods  of  Measurement  of  Radio-
Noise Emissions from Low-Voltage Electrical and Electronic Equipment 

in 

the Range of 9 kHz to 40 GHz 

The  specified  minimum  line  to  ground  capacitance  induces  leakage 
currents  in  excess  of  the  value  permitted  under  EN  61010-1  standard 

 

safety  requirements  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 stabilization network (LISN).  
Before using the LISN, a secure ground connection must be made to the 

LISN’s grounding bolt and/or the bottom metal pl

ate (The bottom surface 

of the LISN is left unpainted for effective ground connection). It must not 
be removed  until after the LISN has been disconnected  from the mains 
power supply, in order to avoid electric shock. 
The safety notes in the accompanying operating instructions and on the 
outside of the device must be followed at all times. 

 

 

POWER  CORD  PROTECTION 

-  Place  power  supply  cords  so  that they  are 

not  likely  to  be  walked  on  or  pinched  by  items  placed  on  them  or 
against them.  

 

 

CLEANING 

 Clean the instrument  outside surfaces of the device with  a 

soft, lint-free cloth. If necessary, a mild detergent may be used. 

 

 

NON-USE PERIODS 

- Unplug the power cords of the instrument when it will 

be left unused for a long period of time. 

 

 

OBJECT  AND  LIQUID  ENTRY 

-  Take  care  that  objects  do  not  fall  into  the 

instruments  and  that  liquids  are  not  spilled  into  the  enclosure  through 
openings. 

 

Distributed by: Reliant EMC LLC,  +1 408 916

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

Summary of Contents for LI-1100C

Page 1: ...LI 1100C LINE IMPEDANCE STABILIZATION NETWORK REV022717 INSTRUCTION MANUAL For LINE IMPEDANCE STABILIZATION NETWORK Model LI 1100C 150 kHz to 30 MHz Distributed by Reliant EMC LLC 1 408 916 5750 info reliantemc com www reliantemc com ...

Page 2: ... 11 6 0 LISN Theory 14 7 0 Typical Performance Data 15 8 0 Warranty 17 8 1 Maintenance 17 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 14 Figure 6 Typical Impedance compared to ANSI C63 5 CISPR 16 1 2 requirements 15 Figure...

Page 3: ...fety 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 co...

Page 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...

Page 5: ...e 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 a fault or the terminal of a prote...

Page 6: ...rtificate 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 t...

Page 7: ...nts 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 stabilizatio...

Page 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 ag...

Page 9: ...VAC 50 60 Hz Line to Ground 620 VDC Inductor type 50 µH EUT Power connector Shrouded Superior Electric Banana Connector RF measurement connector 50Ω N type female Cooling Forced Air Power Adapter for fan Output 6 VDC 0 5 Amp Input 120 VAC 60 Hz 230 VAC 50 Hz Fuse 1 Amp 250 V Adapter output connector Diameter 2 1 x 5 5 mm Center Positive Mechanical Dimensions of Each LISN L x W x H 21 x 10 x 10 inc...

Page 10: ...nd 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 input port ...

Page 11: ...a Superior Electric Shrouded pin receptacle for connection to an external DC or AC input power source The LISN is shipped with two matching shrouded socket plug for connection to the input power source cables 5 3 3 5 3 2 5 3 4 Figure 4 Rear Panel Figure 3 Front Panel Figure 2 Three Phase connections with two sets of LISN 5 3 1 5 3 2 5 3 5 5 3 6 5 3 7 Distributed by Reliant EMC LLC 1 408 916 5750 i...

Page 12: ...100C has a Superior Electric Shrouded socket receptacle to power the equipment under test The LISN is shipped with the matching shrouded pin plug for making the connections to EUT power cable 5 3 4 EMI measurement Port The LI 1100C provides 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 co...

Page 13: ...n ON before powering the EUT via LISN CAUTION The LI 1100 LISNs uses forced air system to keep the air core inductors cool during the test Always use the supplied DC adapter to power the internal fan during the test Do not obstruct the airflow vents Use the LISNs in a ventilated area Failure to observe these precautions may damage the LISN Overheated LISN may also provide incorrect measurement dat...

Page 14: ...hrough the LISN with minimal attenuation This filter is comprised of a single stage low pass LC filter The inductors L used in the LI 1100C 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 lo...

Page 15: ...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 ...

Page 16: ...solation 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 ...

Page 17: ...ectly 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 In the case of repair or complaint Please visit our website www com power com and fill...

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