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4.Junior User Guidebook
15
Figure 4-9 Attenuation Switch
Caution
: When
the attenuation switch is set to 1X, the probe will limit the
bandwidth of the oscilloscope in 5MHz. To use the full bandwidth of
the oscilloscope, the switch must be set to 10X.
How to Use the Probe Safely
The safety guard ring around the probe body protects your finger against any electric
shock, shown as Figure 4-10.
Figure 4-10 Finger Guard
Warning:
To avoid electric shock, always keep your finger behind the safety guard
ring of the probe during the operation.
To protect you from suffering from the electric shock, do not touch any
metal part of the probe tip when it is connected to the power supply.
Before making any measurements, always
connect the probe to the
instrument and connect the ground terminal to the earth.
How to Implement Self-calibration
The self-calibration application can make the oscilloscope reach the optimum
condition rapidly to obtain the most accurate measurement value. You can carry out
this application program at any time. This program must be executed whenever the
change of ambient temperature is 5℃ or over.
Before performing a self-calibration, disconnect all probes or wires from the input
connector. Press the "Utility" button, then, press H1 button to call out the Function
menu; turn the M knob to choose Adjust. Press H2 button to choose the option "Self
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