Com-Power LI-125C Instruction Manual Download

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INSTRUCTION MANUAL

LI-125C

LINE IMPEDANCE STABILIZATION NETWORK

REV011617

Antennas

Antenna Kits

Absorbing Clamps

Coupling/Decoupling

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-Field
Probe Sets

Preamplifiers

Power Amplifiers

Spectrum Analyzers

Product Safety Test

Equipment

Transient Limiters

Turntables

Antenna Tripods

Telecom Test

Systems

2.0 P

RODUCTS

VAILABLE FROM

-P

OWER

www.com-power.com

Distributed by: Reliant EMC LLC, +1 408 916

‐

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

Summary of Contents for LI-125C

Page 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 ...

Page 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...

Page 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...

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: ...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...

Page 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...

Page 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...

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 aga...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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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