Tenma 72-7615 - Page 5

5
DISPLAY SETTING CONTROLS
Using the AUTOSET function
• Connect the signal to be measured to the signal input channel.
• Press AUTO and the oscilloscope will scan the time base and trigger mode and set
the vertical deection factor. You can manually adjust further after this process to
get the optimum display.
Vertical control panel
• Vertical position control centres the waveform display.
• Press CH1, CH2 to turn on or off each channel.
• As you adjust the POSITION control the ground channel indicator
moves in line with the waveform.
• Pressing the position control resets the display to the centre
point.
• Adjusting the VERTICAL SCALE control adjusts the VOLT/DIV
range. The current status display changes accordingly.
• Press MATH or REFERENCE and the screen shows the
corresponding operation menu, sign, waveform and range status information.
Horizontal control panel
• HORIZONTAL POSITION control adjusts the position of the waveform
window by adjusting the trigger shift of the signal.
• Pressing HORIZONTAL POSITION resets the display to the centre point.
• The HORIZONTAL SCALE adjustment changes the SEC/DIV time base
range and the current status indicator will change accordingly.
• The horizontal scanning rate range is 5ns - 50ns in steps of 1-2-5-10.
• Pressing HORIZONTAL SCALE resets the zoom to default.
Zoom display option
• Press MENU to display the ZOOM options.
• Press F3 to display further options including WINDOW EXPANSION and
HOLDOFF.
• Rotate the MULTI FUNCTION rotary control to make adjustments.
• Press F1 to quit the option and return to MAIN TIME BASE.
Trigger system
• The TRIGGER LEVEL rotary control adjusts the trigger level. The display value
changes on the display as you make adjustment.
• Press MENU to select the trigger options. Press multi-function control
to conrm all selections.
• Press F1 to select TRIGGER TYPE
• Press F2 to select TRIGGER SOURCE to CH1 or CH2
• Press F3 selects EDGE TYPE options
• Press F4 selects TRIGGER MODE options
• Press F5 selects TRIGGER COUPLING options
• Press TRIGGER LEVEL CONTROL 50% to set trigger level at the
range amplitude centre point (trigger zero - highest sensitivity setting)
• FORCE: Press to generate a trigger event once.