LeCroy WaveSurfer 400 Series User Manual

5.4 Input Impedance
Specifications
DC 50Ω ±1.0 %
EXT DC 50Ω ±1.0 %
DC 1MΩ ±1.0%
EXT 1MΩ ±1.0 %
AC 1.2MΩ ±1.0%
The impedance values for 50Ω coupling are measured with a high precision digital
multimeter. The DMM is connected to the DSO in 4 wire configuration (input and sense),
allowing for accurate measurements.
5.4.1 Channel Input Impedance
a. DC 50Ω
 Recall Input Impedance - 50 ohm x1.lss or configure the DSO :
Panel Setups : Recall FROM DEFAULT SETUP
Channels Trace ON Channel 1, Channel 2, Channel 3 & Channel 4
Input Coupling : DC 50Ω on all 4 Channels
Input gain : 20 mV/div. on all 4 Channels
Time base : 50 ηsec/div.
Trigger mode : Auto
Rev. D Sept 2007 Performance Verification 5-3

LeCroy WaveSurfer 400 Series Specifications

General

Brand	LeCroy
Model	WaveSurfer 400 Series
Category	Test Equipment
Language	English