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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   

should  be  bonded  directly  to  an  earth  referenced  ground  plane  for 
effective  RF  reference  ground.  In  cases  where  no  ground  plane  is 
available, a mains isolating transformer shall be used. 
Please  refer  Safety  instructions  for  more  information  on  importance  of 
grounding. The grounding instructions are to be followed at all times. 

 

5.3.3 EUT power port 

The  LI-150C  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-150C 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  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 are extremely sensitive; it is highly recommended to use 
transient limiter in line with the cable connecting the measurement port to 
the  measuring  equipment  in  order  to  protect  the  input  circuits  from 
damage  by  high  voltage  transients.  Com-Power  transient  limiters  also 
incorporate both a low pass and high pass filter to attenuate out of band 
signals, as well as a 10 dB attenuation pad. Both, the 10 dB attenuator and 
the transient limiter are available with Com-Power. 

 
 

 
 

 

 

 

 
 
 

 

 
 

 

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...

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