Cal Test Electronics CT3684, Руководство пользователя, Страница: 9 / 16

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3.5 Vertical Scale on Oscilloscope
The actual vertical scale of the oscilloscope is equal to the attenuation
factor multiplied by the range of vertical scale selected on the
oscilloscope. For example, using the CT3684, attenuation of 10x, the
oscilloscope on 0.5 V/div, the real vertical scale is 10 x 0.5 = 5 V/div.
With the CT3685, attenuation of 100x, the real vertical scale is 100
x 0.5 = 50 V/div. These values apply when the oscilloscope is set to
the typical 1 MΩ impedance input. When the oscilloscope is set to 50
Ω input, the actual vertical scale will be doubled: 10 V/div for the 10x
probe (CT3684) and 100 V/div for the 100x probe (CT3685). See Table
1.
Vertical Scale on Oscilloscope
Scope Input
Impedance
Probe
Attenuation
Setting
Actual
Attenuation
Setting
Vertical Scale
Reading on the
Oscilloscope
Actual Vertical
Scale of the
Oscilloscope
1 MΩ 10x 10x 0.5 V/div 5 V/div
1 MΩ 100x 100x 0.5 V/div 50 V/div
50 Ω 10x 20x 0.5 V/div 10 V/div
50 Ω 100x 200x 0.5 V/div 100 V/div
Table 1 Oscilloscope Readings
4 Cleaning
This probe does not require any particular cleaning. If necessary, clean
the case with a cloth slightly moistened with soapy water. Make sure
the probe is completely dry before reconnecting it to an oscilloscope.
WARNING
Dry the probe thoroughly before attempting to make voltage
measurements.
CAUTION
Do not subject the probe to solvents or solvent fumes as these can
cause deterioration of the probe body and cables.