Keysight Technologies Infiniium 90000A Series, Service Manual

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28 90000 A-Series Service Guide
3
Testing Performance
DC Gain Accuracy Test
CAUTION
Ensure that the input voltage to the oscilloscope never exceeds
±5 V
.
NOTE
The oscilloscope under test must be warmed up (with the oscilloscope application running) for
at least 30 minutes prior to the start of any performance test.
Specifications
DC Gain Accuracy ±2% of full scale at full resolution channel scale.
±4.5% of full scale at 5 mV/div.
Full scale is defined as 8 vertical divisions. Magnification is used below 5 mV/div. Below 5 mV/div, full
scale is defined as 40 mV. The major scale settings are 5 mV/div, 10 mV/div, 20 mV/div, 50 mV/div,
100 mV/div, 200 mV/div, 500 mV/div, and 1 V/div.
Description Critical Specifications Recommended Model/ Part #
Digital Multimeter DC voltage measurement accuracy better than
±0.1% of reading
Keysight 34401A
Cable Assembly
(2 required)
50
Ω
characteristic impedance, BNC (m)
connectors
Keysight 8120-1840
Adapter BNC Tee (m)(f)(f) Keysight 1250-0781
Adapter BNC (f) to dual banana Keysight 1251-2277