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32
9. Technical Specifications
Unless otherwise stated, all technical specifications are applicable to the
probe with the attenuation switch set to 10X and this series of oscilloscopes.
The oscilloscope must first meet the following two conditions to meet these
specifications and standards:
■ The instrument must be operated continuously for more than 30
minutes at the specified operating temperature.
■ If the operating temperature variation range reaches or exceeds
5℃, the system function menu must be opened to execute the
"automatic correction" program (see automatic correction in "System
Settings" on P18).
All specifications are guaranteed except those marked "typical".
Oscilloscope
Characteristics
Description
Bandwidth
HDS242(S)
40 MHz
HDS272(S)
70 MHz
Channel
2
Sampling
Sampling method
Sampling, peak detection
Real-time sampling
rate
125 MSa/s (Dual channel)
250 MSa/s (Single channel)
Waveform refresh rate
10,000 wfms/s
Input
Input coupling
DC, AC, ground
Input impedance
(DC coupling)
1 MΩ±2%, in parallel with 16 pF±10 pF
Probe attenuation
1X 、10X、100X、1000X
Maximu input voltage
400 V (DC + AC ,PK - PK)
Bandwidth limit
20 MHz ,Full bandwidth
Horizontal
Sampling rate range
0.25 Sa/s～250 MSa/s
Waveform
interpolation
(Sinx)/x
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