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Vertical Scale on Oscilloscope

The actual vertical scale of the oscilloscope is equal to the attenuation 

factor (10x) multiplied by the range of vertical scale selected on the 

oscilloscope. For example, with the oscilloscope on 2.0 V/div, the 

real vertical scale is 10 x 2.0 = 20 V/div. This value applies when the 

oscilloscope is set to a 50 Ω input impedance input. If the oscilloscope 

is set to the typical 1 MΩ, the actual vertical scale will be cut in half to 

10 V/div. 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

50 Ω

10x

10x

2.0 V/div

20 V/div

1 MΩ

10x

5x

2.0 V/div

10 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.

Содержание CT4121

Страница 1: ...CT4121 User Manual 1 M 3 pF 1 2 G H z A ctiv e FET Probe 10 1 w ith 50 Term in atio n PO W ER LED 1 2 G H z 10 1 1 M 3 pF 40 Vpk...

Страница 2: ...nspect the Probe Inspect the probe and accessories for cracks and frayed or broken leads before each use If defects or damages are noted DO NOT USE the probe Handle Carefully Handle the probe with car...

Страница 3: ...there is a danger of any liquid being spilled on the probe z z In air temperatures exceeding the specified operating temperatures z z In atmospheric pressures outside the specified altitude limits or...

Страница 4: ...duct is subject to Directive 2012 19 EU of the European Parliament and the Council of the European Union on waste electrical and electronic equipment WEEE and in jurisdictions adopting that Directive...

Страница 5: ...om the oscilloscope using the included USB power lead Features z z 1 2 GHz bandwidth 3 dB z z Up to 40 V DC AC peak z z Attenuation 10x z z High accuracy 2 z z Power indicator LED z z SMD accessory ki...

Страница 6: ...mm 2 Product Overview CT4121 Description Offset Adjust Linear Range 10 1 Absolute Max Range 15 V DC peakAC 40 V DC peakAC CT4121 Active FET Probe POWER LED 1 2 GHz 10 1 1 M 3 pF 40 Vpk BNC Output Con...

Страница 7: ...onnector Place the battery inside compartment and then slide the cover back in place See Figure 2 Figure 2 Battery Connection Alternatively connect the 9 VDC power lead to the power jack on the probe...

Страница 8: ...o DC coupling and 5V div Center the trace on the display 5 Connect the input pins of probe to a function generator and select a square wave output of 10 V amplitude and 100 kHz frequency 6 A 100 kHz s...

Страница 9: ...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 50 10x...

Страница 10: ...se Time probe only 291 ps Attenuation ratio 10x Accuracy 2 Input Dynamic Range DC AC peak 15 V Maximum Input Voltage DC AC peak 40 V Input Impedance 1 M 3 pF typical Output Voltage Swing 1 5 V driving...

Страница 11: ...Temp Humidity 30 C to 70 C Up to 85 RH Pollution Degree Pollution Degree 2 Altitude Operating 3 000 m Nonoperating 15 300 m Specifications are subject to change without notice To ensure the most curr...

Страница 12: ...800 572 1028 caltestelectronics com 11 Figure 5 Frequency Response of CT4121 Frequency Response...

Страница 13: ...nput Impedance Ohm 107 106 105 104 103 102 101 101 102 103 104 105 106 107 108 1 Frequency Hz Black Measured by LCR meter Grey Simulated by Altium software Figure 6 Input Impedance vs Frequency Data G...

Страница 14: ...ersons will not be covered by this warranty Cal Test Electronics reserves the right to discontinue models change specifications price or design of this device at any time without notice and without in...

Страница 15: ...800 572 1028 caltestelectronics com 14 Notes...

Страница 16: ...2017 Cal Test Electronics 450830 001 Rev A...

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