EMCIS LN2-16 Operation instructions

LISN (LN2-16)
User’s Operating Manual
Please read this manual before usage
Please keep this manual with the equipment
ELECTRO-MAGNETIC COMPATIBILITY INSTRUMENTS & SOLUTION
Emcis Bldg., Deokcheon-Ro 77, Manan-gu, Anyang-si, Gyeonggi-do, Korea
Tel : [phone] Fax : [phone]
Website : www.emcis.co.kr e-mail : [e-mail]

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EMCIS will repair this equipment free of charge if a malfunction occurs within 2 years
after shipment due to a manufacturing fault, provided that warranty is rendered void
under any or all of the following conditions.
The fault is outside the scope of the warranty conditions described in the
operation manual.
The fault is due to disoperation, misuse, or unauthorized modification or repair
of the equipment by the customer.
The fault is due to severe usage clearly exceeding normal usage
The fault is due to improper or insufficient maintenance by the customer.
The fault is due to natural disaster including fire, flooding, and earthquake, etc.
The fault is due to use of non specified peripheral equipment, peripheral parts,
consumables, etc.
The fault is due to use of non specified power supply or in non-specified
installation location.
In addition, this warranty is valid only for the original equipment Purchaser.
It is not transferable if the equipment is resold.
EMCIS will not accept liability for equipment faults due to unforeseen and
unusual circumstances, nor for faults due to mishandling by the customer.
WARRANTY
EMCIS Contact
If this equipment develops a fault, contact office of EMCIS at the address
in the operation manual, or your nearest sales or service office.

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

Certificate of Compliance
Dear Sir ;
We hereby certify that the products are manufactured, inspected, and tested
according to the rule and regulation of EMCIS quality control program
based on ISO9001,version 2008.
With best regards,
EMCIS Co., Ltd.
Quality Control Dept.

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Safety Symbols
Where these symbols or indications appear on the instrument r in this manual, they have the
following meanings.
Caution
Risk of hazard which cause fire or serious damage to
the instrument or other equipment. Do not proceed
until its suitable conditions are met.
Warning
Risk of hazard which cause injury to human body or danger to
Life, if a WARING appears on the instrument, and in this manual,
do not proceed until its suitable conditions are met.
Ground without guide
Earth with guide
Please read this manual before usage
Please keep this manual with the equipment

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Contents
1.0. Introduction of LISN
2.0. Specification
3.0. Packaging
4.0. Installation
5.0. Calibration
Appendix Isolation Transformer

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1.0. Introduction of LISN
EMCIS Model Line Impedance Stabilization Network (LISN) is a channel selectable (one or
two) low pass filter network designed to isolate the equipment under test from an external
power source ; to measure conducted emission from power lines.
The LISN must maintain a characteristic impedance to the EUT and isolate the EUT from
unwanted RF signals on both the DC and AC power source while allowing the necessary
voltage and current to be delivered to the EUT.
The LISN provides a 50Ωoutput impedance for measurement of RF emissions produced by
the EUT.
The impedance versus frequency of an LISN must match the requirements of the test
specification being applied to the EUT.
Most LISN attributes are defined in CISPR 16-1.
The most widely used LISN's present a 50Ωimpedance to the EUT. The 50Ωimpedance
was selected because theoretical and empirical data have shown that the power circuitry
statistically looks like a 50Ωimpedance to standard electronic equipment and RF test
equipment is typically designed for 50Ωinput. The bandwidth is typically determined by
the operating frequency of the potential victims of the EUT's conducted emissions.
The majority of conducted emission measurements are carried out form 150 kHz to 30 MHz.
This insures that electronic equipment do not interfere with VLF, HF radio communication
systems as well as other electronic devices operating at this frequency.
EMCIS LISN has its own special parameter.
There are two type of LISN being used ; One has one line connection port with line selection
switch(or without switch) and another one has two ports linking two lines simultaneously and
continuously. To cover both cases, EMCIS LISN has two group of selection button.
In performance and operation, there are no difference comparing with currently used LISN

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2.0. Specification
Model LN2-16
Frequency Range 9KHz ~ 30MHz
Network Impedance 50/50H + 5+ 250H
Current Rating 16Amp Max
Input voltage 220VAC
Measurement lines 1Ph, 2P(L1, N)
Input Frequency DC ~ 60Hz
Dimension W355 x H145 x D325mm
Weight 8.5kg /net
Installation Indoor usage only
Temperature 0 ~ 40°C
Related Humidity 80% up to 31°C
3.0. Packing
When receive the products, please check the packing list and match it with actual items in the
package.
Please check the conditions of items ; any damage, attachment, and looks is properly good.
Description
Quantity
Remark
Main body
1 set
Serial No.
Manual
1 ea
Table 1. Standard products package
# This packing list is based on standard package
Each purchased list shall be different according to the contract.
Please contact if there are any missing parts.

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LINE IMPEDANCE STABILIZATION NETWORK
Artificia l Hand LINE SELECT
L2L1
AN A L YSIS RF MODE
Front Panel
②③④⑤
①
⑥
①EMCIS logo and Model name ②Artificial hand
③EUT power plug(CISPR16, 16A) ④Analysis BNC connector
⑤RF BNC connector ⑥mode & line section button
Rear Panel
①②
①Earth terminal ②Input power terminal

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4.0. Installation
Any use of the LISN without proper earth connection is strictly
Warning prohibited. Due to the high leakage current to ground
inherent to this type of equipment, it is necessary to install a
supplement protective earthing wire from the protective earth
terminal on the front(rear) panel of the LISN to an appropriate
earthing point of the power mains.
If the main line is equipped with the fault current protection
switch, recommended to use an isolation transformer between
main outlet and the LISNs.
4.1. Protective earth connection
LISN is provided with earth connectors in the and rear panel. The ground
connection between the LISN and the ground plate must be as short as possible and
noninductive. The earthing point should be determined by an electrican authorized
to do such work by appropriate code or law.
4.2. Main Supply
Over current protection is not provided in the LISN
Warning LISN must be connected to a power mains which has the
properly rated mains protection installed.
Input power connection is made through the properly rated power cords meet the
related specification.

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LINE IMPEDANCE STABILIZATION NETWORK
Artif icial Hand LINE SE LECT
L2L1
AN A LYSIS RF MODE
L1 L2 RF
RF INPUTI RF INPUTⅡ
MODE RFINPUT
50VDC Max±
L1 COMMON L2 DIFFERENTIAL
RFⅡ CALIBRATE
AUDIO VOLUME
10MHz
30dB㎶
30mV Max
SA-2000 10KHz~1100MHz
10KHz~30MHz 10KHz~1100MHz
RF mode
Analysis
mode
4.3. Measuring instruments connection
It is advisable to connect the input and output connectors to
Caution their proper power lines and loads before connecting to the
measuring instrument. Otherwise, it is possible to damage the
mixer or attenuators of the test instruments due to power surges
or transients.
LISN is connected to measuring instrument, EMI Receiver or Spectrum Analyzer
through BNC connector on the front panel.
table
Ground
# Connection shall be selected between RF andAnalysis Mode
in case of use EMCIS ESA-2000 EMI/SpectrumAnalyzer

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LINE IMPEDANCE STABILIZATION NETWORK
Artificial Ha nd LINE SELECT
L2L1
AN A LYSIS RF MODE
LINE IMPEDANCE STABILIZATION NETWORK
Artificial Ha nd LINE SELECT
L2L1
AN A LYSIS RF MODE
EMCIS LISN has two BNC connection port respectively ;Analysis mode, RF mode.
Analysis mode is for using with EMCIS instruments (EMI/Spectrum Analyzer and
EMI Analyzer) and RF mode is for general usage when customer use other brand of
spectrum analyzer and/or EMI receiver.
4.3.1. When useAnalysis mode
Connect both BNC lines from LISN to EMCIS instruments.
Push Analysis mode button. Both lines is ‘ON’
Start measurement.
to instrument (RF input)
Mode selection
button
4.3.1. When RF mode
Connect BNC cable from RF mode of LISN to input BNC of
spectrum analyzer and/or EMI Receiver. Select Line1 or Line2
from line selection button of LISN. Do not needed to change the
line connection or switch line selection switch as currently used.
to instrument (RF input)
push Line(1 or 2) button

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LINE IMPEDANCE STABILIZATION NETWORK
Artificia l Hand LINE SELECT
L2L1
AN A L YSIS RF MODE
LINE IMPEDANCE STABILIZATION NETWORK
Artificia l Hand LINE SELECT
L2L1
AN A L YSIS RF MODE
4.4. EUT connection
EUT is connected to LISN output port.
Front panel of LN2-16
4.5. Artificial hand
Artificial hand with 510+220PF capacitance corresponds to the requirements of
CISPR 16-1. “Artificial Hand”on the front panel of the LISN is used to connect
the recommended metal foil which is used to simulate the effects of the human hand,
holding the apparatuses or appliance under normal operating conditions. The metal
foil must be wrapped around the handle of the apparatus or appliance to be tested.

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5.0. Calibration
Unit is calibrated by authorized institute in Korea, traceable to NIST.
The calibration sheets is supplied with the unit.

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220
V
110V
110
V
L
G
N
220V
220
V
0V
L
G
N
Appendix Isolation Transformer
It is very recommended to check the currently used electricity and to use Isolation transformer
if the electricity is not in ‘not recommended’condition
Required electricity condition for LISN / noise measurement
Wrong electricity in measurement and for LISN
Standard Isolation Transformer circuit
220V
L
N
110V
G
110V
220V