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Testec TT-HVP 15HF Instructions D'utilisation page 6

Sonde haute tension

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Voltage Derating
The following graph shows the voltage versus frequency derating curve.
Voltage Versus Frequency Derating Curve
100000
10000
1000
U (VD C)
100
10
1
0
Frequency Compensation Adjustment
The TT-HVP15HF High Voltage Probe has a Frequency Compensation adjustment that compensates
for the input capacitance of the oscilloscope being used with the probe.
Use a square-wave generator set for approximately 100 Hz output. Proceed with the following steps for
frequency compensation.
1
Connect the probe to the oscilloscope.
2
Connect probe tip to square-wave generator.
3
Adjust the square wave generator for approximately 10 volts amplitude.
Adjust the oscilloscope time base for 20 µsec/div.
4
5
Use a trimmer tool to adjust the compensation capacitor for the flattest pulse top. See the figure
below for the location of the adjustment.
18,614k
Frequency Compensation Adjustment
100k
500k
f (H z)
Specifications are subject to change without notice
1M
10M
50M

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