Emission Reference Source

Conducted Emission Measurements: LISN

LISNs are used to measure the RF conducted back down the mains lead from the unit under test (UUT). The design and construction of the LISN is specified by CISPR16.

The Laplace LISN1600 is a fully compliant device in all respects.

The functions of the LISN are :
To provide a mains filter to isolate the measurement from external mains interference.
To present known fixed impedance at RF frequencies to the UUT
To facilitate the coupling of RF from the mains lead to an output suitable for a connection to analyzers.
To provide signal protection to protect mains transients damaging any analyzer.

Features

10KHz to 30MHz range. Matches the full frequency range for conducted emissions.
16amp capacity. Continuous rating.
DC Measurements. Can be used on supplies from DC to 70Hz.
Output protection. The signal output is fully voltage clamped to prevent transients damaging your instruments.
Built-in attenuator. Switched -10 and -20dB attenuator to match signal to analyzer

Specification

Max current: 16A continuous (higher current models are available -- contact us)
Source selection : Line 1 (L) Line 2 (N), OFF
Max Voltage : 264V, AC to 70Hz
150KHz Filter : -40dB at 50Hz, -0.2dB at 150KHz
LF Resistance: 135 mOhm
Output Connector: 50 ohm BNC
Impedance network : per CISPR16
Artificial Hand : 220pf +500R
I/P Imp. Variation : ±20% 9KHz-30MHz = CISPR
Attenuation : -0.5dB Nom, calibration factor
Size(mm): 5.2"(H) x 8.35"(H) x 12.4"(L) 132mm(H) x 212mm(W) x 315mm(L)
Physical Weight: 14.33lb (6.5 kg)

Ó 1999 Credence Technologies, Inc. Mail comments to webmaster@credencetech.com
Aware, EMAlert, EM Event, EMEye and ScanEM are trademarks of Credence Technologies, Inc.
Products are covered by patents or are patent pending. All specifications are subject to change without notice.