5-8.Calibration; 5-9.Dc Bal Adjustment; 5-10.Function Generator - Test Equipment Depot GOS-620 Operation

20mhz dual trace oscilloscope
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5-8.Calibration of Probe
As explained previously, the probe makes up a wide range attenuator. Unless phase compensation is properly done, the
displayed waveform will be distortion causing measurement errors. Therefore, the probe must be properly compensated before
use. Connect 10:1 probe BNC to the INPUT terminal of CH1 or CH2 and set VOLTS/DIV switch at 50mV. Connect the
probe tip to the calibration voltage output terminal and adjust the compensation trimmer on probe for optimum Square wave
(minimum overshoot, rounding off and tilt).
FIG. 5-7
(a) Correct compensation
5-9.DC BAL Adjustments
The ATT balance of the vertical axis can be adjusted easily.
(1) Set the input coupling switches of CH1 and CH2 to GND and set the TRIG MODE to AUTO, then position the base line
to the center.
(2) Adjust the VLOTS/DIV switch to 5mV-10mV and fix the line does not move.

5-10.Function Generator

The instrument also provides the basic features of Function Generator to satisfy general demand with simply and intuitional
operation method by adjusting the control knobs directly from front panel for output waveform, amplitude, DC level and etc.
All the control knobs located in front panel are marked with the same color to prevent missetting.
Test Equipment Depot
www.testequipmentdepot.com
(b) Over compensation
99 Washington Street
Melrose, MA 02176-6024
800-517-8431
(c) Insufficient compensation
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781-665-0780 FAX

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