3.Junior User Guidebook
13
Identify the Probe Attenuation Coefficient Automatically
The oscilloscope can identify the probe attenuation coefficient of the 100:1
(impedance 5K
±
20%) or 10:1 (impedance 10K
±
20%) probe with the identifying
pin. When you attach the probe, the oscilloscope set the attenuation automatically on
the oscilloscope vertical menu for the channel to match the probe.
For example, if you attach a 10:1 probe with the identifying pin, the screen will
prompt "The probe attenuation factor is X10", and set the attenuation to 10X
automatically on the oscilloscope vertical menu for the channel.
How to Use the Probe Safely
The safety guard ring around the probe body protects your finger against any electric
shock, shown as
Figure 3-9 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. Push the
Utility
button, select
Function
in the bottom menu, select
Adjust
.
in the left menu, select
Self Cal
in the bottom menu; run the program after everything
is ready.
