Scope Multimeter Operation and Controls
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Show/Hide (Channel display on/off)
The Show/Hide icons allow you to turn the channels on and off.
To turn a channel on and off, select the applicable channel’s Show/Hide icon.
Trace (Zero Baseline position adjustment)
The Trace icon identifies the channel number and is used to open the zero baseline
adjustment controls.
To adjust the vertical position of the zero baseline (0 value) of a trace (for either
channel), select the Trace icon or to open the zero baseline adjustment controls.
Select the up/down arrows to make adjustments or press the up/down directional
buttons. Tap the main body screen section or press the N/X button, to exit.
The zero baseline can also be repositioned by touching and dragging the baseline
marker up/down on the screen.
Peak Detect
Peak Detect Off
When peak detect is off, the scope samples at a high rate but saves just enough
sample points to the data buffer memory to plot a waveform across the screen. No
preference is given to any point during the selection process.
— Turning peak detect “off” is suitable for basic measurements, and viewing
waveforms (e.g. oxygen (O2) or Cam sensor) when capturing fast events is
not necessary.
— The longer the time sweep, the greater the chance a glitch could be missed
because it occurred in between the sample points saved to the data buffer
memory. To increase the chance of capturing a glitch with peak detect “off”, a
shorter time sweep should be selected.
— Turing peak detect “off” avoids the need for an external filter to decrease
the display of unwanted noise, which can make diagnosis more difficult.
Example: With a time sweep of 10 seconds on a screen 100 points wide, the
effective sample rate would be 10 times a second. Decreasing the time sweep
to 1 second, increases the effective sample rate to 100 times a second. At this
time setting, a fast occurring event is more likely to be captured due to the
increased rate. This is the standard mode of operation for many scopes.
Show/Hide Icons
On (Channel displayed) Off (Channel not displayed)
Trace Icon
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