71
Scope Multimeter
Operation and Controls
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.
NOTES:
i
— 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
