User Manual

CH1 annotation at the left of the screen above the softkeys, which tells you which channel's

settings can be modified by the softkeys.

Adjust the Vertical Scale

By pressing the vertical scale knob, the knob can be used for coarse or fine adjustments:

 The coarse adjustment sets the vertical scale in 1-2-5 steps, such as 1 mV/div, 2 mV/div, 5

mV/div, 10 mV/div, etc. The range of the settings will depend on the probe attenuation factor

set. For an attenuation of 1X, the settings range from 500 µV/div to 10 V/div.

 The fine adjustment changes the vertical scale in smaller increments (depending on the set

value). For example, if you set the coarse adjustment to 1 V/div and press the button to

change to fine adjustment, one counterclockwise click of the knob will change the scale to

1.02 V/div.

The fine adjust mode can be used to make the waveform take up the whole screen, which will

improve the resolution of measurements taken from the screen's graticule (i.e., the grid).

When the scale control is adjusted, the words Fine or Coarse will appear in the Adjust softkey

(you can use this softkey to toggle between fine and coarse adjustment modes).

To convert a vertical distance on the screen to a voltage or current, read the channel's scale value

from the right-hand side of the screen and multiply it by the number of vertical divisions covering

the feature of interest.

Adjust the Vertical Position

Turn the VERTICAL Position knob to adjust the vertical position of the channel's waveform on the

screen. Push the knob to set the 0 volts or amperes position on the waveform to the center of

the screen. The current adjustment value is shown by the channel's marker on the left side of the

screen and in the channel's data on the right side of the screen.

The following table shows the range of vertical position adjustment according to the volts/div

setting (1X probe attenuation factor).

Volts/div Setting

Range of Vertical Adjustment

2 mV/div to 100 mV/div

±1 V

102 mV/div to 1 V/div

±10 V

1.02 V/div to 10 V/div

±100 V

Table 6 - Volts/div scale vs. vertical position

Specify Channel Coupling

There are three channel coupling settings: DC, AC, and GND. Suppose the signal being input is a

square wave with DC offset.

Note: To stop displaying the channel's trace on the screen, press the channel button until its light goes

out.