Scope / Multimeter
Operation and Controls
27
Cursors
NOTE
The Cursors feature is only available in the lab scope and Graphing Meter
functions.
Two vertical cursors are provided that allow you to make precise signal
measurements, when determining signal characteristics such as, amplitude at
specific points, and cycle time (duration) or frequency.
Using cursors can also be helpful when performing certain diagnostic tests, such
as:
•
O2 sensor rich/lean switch time
•
fuel injector pulse width frequency
•
secondary ignition spark duration
•
crankshaft position sensor frequency
Measurements can quickly be taken between the two cursors, when measuring a
single cycle or across multiple cycles by positioning the cursors at the start and end
of the cycle or multiple cycles.
The cursor measurements panel is displayed when using the cursors, providing you
digital values of the cursor measurements. See
for additional information on the values displayed in the cursor
measurements panel.
z
To turn the cursors on/off:
To turn the Cursors on (display), select the
Cursor
icon from the toolbar.
Two cursors are displayed on the test screen, and the Refresh, Min, Live, Max
display panel is switched off and replaced by the cursor measurements panel.
See
for additional information on the
cursor measurements panel.
To turn the Cursors off, select the
Cursor
icon again from the toolbar.
1— Cursors Icon
2— Cursor (no. 1)
3— Cursor Marker (no. 2)
4— Cursor Measurement Panel - amplitude and delta display
5— Cursor Measurement Panel - time and delta display
Figure 3-25
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To position the cursors:
The cursors can be positioned anywhere within the range of the sweep scale
(
1.
Turn the Cursors on.
2.
Using the touch screen, select either cursor marker (base) and drag it to the
desired position.
