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Com-Power LI-215A Multi-Line LISN 9 kHz 30 MHz

Description

The Line Impedance Stabilization Networks (LISNs) models LIN-115A and LI-215A are utilized during single phase conducted emissions testing per FCC, CISPR and European norms. These LISNs meet the im¬pedance requirements called out in these specifications.

Single phase power applications require two LISNs. These models offer the convenience of having two LISNs in a single enclosure. The power source may be either AC or DC with current ratings up to 15 A (please see specifications on the back). The line to be tested can be selected using the switch located on the front panel. The aluminum enclosure minimizes radio frequency interference which can compromise test results.

All LISNs manufactured by Com-Power use air-core coils to prevent saturation and permeability variation. Therefore, they provide stable performance over time. The bottom mounting plate of the LISN is conductive, so that it can be electrically bonded to the ground plane during the test.

The LIN-115A has built in transient limiter. An optional Transient limiter (model LI-930) is available for model LI-215A from Com-Power to protect the Spectrum Analyzer input during the test.

Features

  • Wide frequency range: 9 kHz - 30 MHz
  • Coils matched to application
  • Air core coils
  • Individually calibrated

Com-Power LI-215A Application

The LISN provides input power line impedance to the equipment under test (EUT) that is constant and inde­pendent of the line impedance of the external power source during conducted emissions testing.

In addition to providing constant power line imped­ance, the LISN functions as a low pass filter for the power to equipment under test. It prevents any radio frequency noise on the external power line from reach­ing the equipment under test (EUT).

Other functions of the LISN include; providing 50 Ohm connection to the spectrum analyzer to measure EMI voltage generated by the EUT and blocking mea­surement of EMI voltage emanated by other equipment connected to the external power source.

The insertion loss of the LISN may be significant at low frequencies. Therefore, at frequencies below 400 kHz, the insertion loss correction factor must be added back to the spectrum analyzer reading. The LISNs frequency vs insertion loss characteristic table for each line is shipped with each unit for this purpose. The impedance data shipped with each LISN is not used in measurement calculations. However, periodic calibration of the LISN impedance is necessary to ensure accurate conducted emissions measurements.

Specifications

Model

LIN-115A

LI-215A

Frequency

150 kHz - 30 MHz

9 kHz - 30 MHz

Lines + Ground

2

2

Max Current (Amp)

15

15

Voltage (line to ground)

270 VAC

270 VAC

Inductor (μH)

50

50 & 250

Output impedance (Ω)

50

50

Output Connector

N type

N type

Power source frequency

DC-60 Hz

DC - 60 Hz

Transient limiter

Built in

Optional

Power in

IEC Power inlet

IEC Power inlet

Power out

Euro type

NEMA

Weight

17 lbs. / 8 kg

21 lbs./ 9.5 kgs

Size

14 x 7 x 13 inches

35.5 x 17.7 x 33 cm

17 x 16 x 7 inches

43 x 40 x 18 cm

Standards

CISPR
CISPR 11
CISPR 14 - 1
CISPR 14 - 2
CISPR 14 - 2
CISPR 16 - 1
CISPR 16 - 2
CISPR 16 - 3
CISPR 16 - 4
CISPR 22
CISPR 24
IEC
IEC/TR EN 61000 - 1 - 1
IEC/TR EN 61000 - 2 - 1
IEC/TR EN 61000 - 2 - 3
IEC EN 61000 - 3 - 2
IEC EN 61000 - 3 - 4
IEC/TC EN 61000 - 3 - 5
IEC EN 61000 - 4 - 2
IEC EN 61000 - 4 - 3
IEC EN 61000 - 4 - 4
IEC EN 61000 - 4 - 5
IEC EN 61000 - 4 - 6
IEC EN 61000 - 4 - 7
IEC EN 61000 - 4 - 8
IEC EN 61000 - 4 - 9
IEC EN 61000 - 4 - 11
European
EN 50 081 part 1
EN 50 081 part 2
EN 55 011
EN 55 013
EN 55 014
EN 55 015
EN 55 020
EN 55 022
EN 55 024
EN 50 082 part 1
EN 50 082 part 2
EN 50 093
American
FCC Part 15
MIL-STD - 461E