Operation - Tenma 72-14520 Instructions Manual

OPERATION

• Boot check
• Power on the unit at the rear followed by the soft power button on the front panel.
• The oscilloscope then run through a set on self test functions followed by the
display screen showing.
• Take the probe and connect its BNC header to the BNC terminal of the
oscilloscope. Connect the probe's main alligator clip to the "Calibration terminal"
and the ground clip also connected to the "Ground terminal".
Probe compensation
• Perform this adjustment when connecting the probes
to any input channel for the first time or errors in the
measurement may result.
• Set the attenuation coefficient in the probe menu and the
switch on the probe to 10x
• Enable CH1 and press AUTO.
• Observe the shape of the displayed waveform.
Over Compensation
• Adjust the variable capacitor on the probe with an insulated screwdriver until a
correct waveform is achieved.
AUTO SET WAVEFORM DISPLAY
• The oscilloscope features an AUTO SET function which automatically adjusts the
vertical deflection factor, scanning time base and trigger mode based on the input
signal until the most appropriate waveform is displayed.
Using the AUTO SET function
• Connect the signal to be measured to the signal input channel.
• Press AUTO and the oscilloscope will adjust the vertical scale factor, timebase, and
trigger mode according to the input signals.
Correct Compensation
4
Calibration Terminal
Ground Terminal
Under Compensation