Trigger on : EXT
Impedance : DC 1MΩ
Connect the DMM to External, and measure the input impedance, reverse the
meter leads and measure the input impedance.
Average these two numbers and record the input impedance in Table 2, and
compare the result to the limit in the test record.
5.5 Leakage Current
Specifications
DC 50Ω, EXT DC 50Ω : ±2 mV
The leakage current is tested by measuring the voltage across the input channel.
5.5.1 Channel Leakage Current
a. DC 50Ω
Recall Leakage - 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
Trigger mode : Auto
Time base : 50 nsec/div.
WR6K Rev.D Performance Verification 5-7
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