background image

 

Page 7 of 16

 

INSTRUCTION MANUAL

 

LI-150C 

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

 

                

 

 

      REV021317   

 

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-150C 

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  (1µF)  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 plate

 (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. 

 

Содержание LI-150C

Страница 1: ...MANUAL LI 150C LINE IMPEDANCE STABILIZATION NETWORK 19121 El Toro Rd Silverado California 92676 949 459 9600 com power com REV021317 INSTRUCTION MANUAL For LINE IMPEDANCE STABILIZATION NETWORK Model L...

Страница 2: ...cription 10 5 1 Overview 10 5 2 Product Setup 10 5 3 Front Rear Panel Marking 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 P...

Страница 3: ...front and rear panel ports controls and indicators product specifications safety precautions operational instructions and warranty information and guidelines and instructions for its proper usage Info...

Страница 4: ...Networks CDN Comb Generators Current Probes Emissions Test Systems Conducted Immunity Test Systems Impedance Stabilization Networks ISN Line Impedance Stabilization Networks LISN Antenna Masts Near Fi...

Страница 5: ...e product The yellow triangle with a lightning bolt indicates an alert to the user that un insulated dangerous voltages are present within the product enclosure and on output connectors These voltages...

Страница 6: ...items ISO 17025 calibration data and certificate External transient limiter model LIT 153 3 4 General Safety Instructions The following safety instructions have been included in compliance with safet...

Страница 7: ...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...

Страница 8: ...b upon the instrument or use it as a step 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...

Страница 9: ...6 1 2 Edition 2 0 2014 03 ANSI C63 4 2014 Number of lines Two lines Max current rating 50 Amp AC 35 Amp DC Max Voltage rating 270 VAC 50 60 Hz Line to Ground 380 VDC Inductor type 50 H EUT Power conne...

Страница 10: ...eby minimizing its influence on the measurements and couples the disturbance voltages to the coaxial measurement port for connection to the measuring instrument like EMI Receiver or Spectrum Analyzer...

Страница 11: ...arth leakage current the device cannot be connected to any power source protected by either a ground fault circuit interrupter GFCI circuit breaker or residual current devices RCDs The power source mu...

Страница 12: ...3 4 EMI measurement Port The LI 150C provides a 50 N Type female connector to connecting the Spectrum analyzer or EMI receiver for making conducted noise measurements The shielding connection of the...

Страница 13: ...wever the power to the equipment passes through the LISN with minimal attenuation This filter is comprised of a single stage low pass LC filter The inductors L used in the LI 150C are air core type to...

Страница 14: ...pared to ANSI C63 5 CISPR 16 1 2 requirements 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...

Страница 15: ...om power com REV021317 Figure 8 Typical Isolation 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 Isolati...

Страница 16: ...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 recom...

Отзывы: