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Chapter 4: Testing Performance
DC Gain Accuracy Test
DC Gain Accuracy Test
C AU T I ON
Ensure that the input voltage to the oscilloscope never exceeds ±5 V.
Let the oscilloscope warm up before testing
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
Equipment Required
Description
Digital Multimeter
Cable Assembly
(2 required)
Adapter
Adapter
48
±2% of full scale at full resolution channel scale
Full scale is defined as 8 vertical divisions. Magnification is used below 5 mV/div. Below 5 mV
full scale is defined as 40 mV. The major scale settings are 5 mV, 10 mV, 20 mV,
50 mV, 100 mV, 200 mV, 500 mV and 1 V.
Critical Specifications
DC voltage measurement accuracy better than ±0.1% of reading
50Ω characteristic impedance, BNC (m) connectors
BNC Tee (m)(f)(f)
BNC (f) to dual banana
Recommended
Model/
Part Numbers
Agilent 34401A or
Agilent 3458A
Agilent 8120-1840
Agilent 1250-0781
Agilent 1251-2277
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