Sensor Calibration
To obtain optimum response, the sensor’s low frequency compensation must be adjusted.
NOTE:
To carry out this adjustment,
the two channels of your oscilloscope must be
disconnected
from the measured circuits before opening the battery housing cover.
The calibration output (3Vpp, 1kHz) for the sensors is underneath 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 sensor to be adjusted
to the calibration output under the
battery housing cover, as shown.
•
Select the DC coupling for the channel to which the sensor is connected and run an Autoset
to carry out pre-setting.
•
Adjust the sensitivity and the vertical offset of the channel so that the signal fills the screen, and
adjust the time base to 200µs to view a signal period on the screen.
•
Turn the BNC base of the sensor in order to access the sensor adjustment screw:
In this example, the sensor is over-compensated:
an overshoot occurs.
Turn the screw in either direction until the signal is
horizontal and looks like the screen shown opposite.
Your sensor is now calibrated.
Turn the BNC base again to close access to the adjust-
ment screw and replace the battery cover.
Remote Programming
The oscilloscope can be programmed remotely from a computer by using the SX-METRO software,
which is located on the CD-ROM supplied with your instrument. This software is used to:
•
Configure the instrument
•
Perform measurements and retrieve the results
•
Transfer files (traces, configuration, screenshots, etc.)
To communicate between the instrument and the computer:
•
Connect the USB end of the cable to one of the PC’s USB ports (if necessary install the driver
shipped with the cable).
•
Connect the optical connector to the oscilloscope, after first powering it up.
•
Open SX-METRO; select USB communications and wait for communication to be established (in
the event of a problem, refer to the SX-METRO instructions).
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