14
Handscope Harmonic Analyzer Oscilloscope Model OX 5042B
The calibration output (3 V
pp
, 1 kHz) for the probe is under the battery cover.
To remove the battery cover, use a coin to turn the slot on the back of the
unit counter-clockwise
Connect the probe to be adjusted to the calibration output
under the battery housing cover, as shown to the left.
Select the DC coupling for the channel connected to the probe
Run an Autoset
to carry out pre-setting
Adjust the sensitivity and vertical offset of the channel so that the signal fills
the screen
Adjust the time base to 200 µs to view a signal period on the screen
Turn the BNC base of the probe in to access the probe adjustment screw:
In this example, the probe is overcompensated, so an
overshoot occurs.
Turn the screw in either direction until the signal is
horizontal and looks like the screen to the left.
Your probe is now calibrated.
Turn the BNC base again to close access to the
adjustment screw and replace the battery cover.
