Fnirsi 2C23T Manual página 57

③Set the oscilloscope to AC coupling mode.
④Insert the probe and move the switch on the probe handle to the correspond-
ing gear position.
⑤Ensure that the power supply is powered on and there is a voltage output.
⑥Connect the probe clamp to the negative terminal of the power output,
connect the probe to the positive terminal of the power output, and wait for
about 10 seconds, when the yellow line and the yellow arrow on the left end
of the waiting period.
⑦Press the [AUTO] button once, and the power ripple will be displayed.
7. Inverter output measurement
The output voltage of the inverter is similar to that of household electricity,
usually around a few hundred volts, so it needs to be set to the 10X gear
(both the probe and oscilloscope are set to the 10X gear)
①Firstly, set the oscilloscope to Auto trigger mode (default to Auto trigger mode
after startup), which is used to test periodic signals (the signals output by the
inverter belong to periodic signals).
②Set the oscilloscope to 10X gear (default to 1X gear after startup).
③Set the oscilloscope to DC coupling mode.
④Insert the probe and move the switch on the probe handle to the 10X position.
⑤Ensure that the inverter is powered on and has voltage output.
⑥Connect the probe clamp and probe to the output end of the inverter without
distinguishing between positive and negative poles.
⑦Press the [AUTO] button once, and the waveform output by the inverter will be
displayed. If the waveform after AUTO adjustment is too small or too large,
the waveform size can be manually adjusted in zoom mode.
8. Power amplifier or audio signal measurement
The output voltage of the power amplifier is generally below 40V, and the
maximum test voltage for 1X gear is 80V, so using 1X gear is sufficient (both
the probe and oscilloscope are set to 1X gear).
Gear selection
Gear selection
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