Elma 319s
side 28
DWELL & %Duty functions
Number of cylinders defaults at 4 cylinders. Press Cylinder button for one second or more to
display the cylinder setting, and press momentarily again within one second to select the number
of cylinders from 1 through 12 to match the engine under test. Adjust the dwell angle according to
the procedures outlined in your vehicle service manual. Re-check the timing whenever the dwell
angle has been adjusted.
Press SELECT button momentarily to display DWELL reading in terms of percentage (%) if
required. Positive & negative trigger slopes are selectable through pressing
TRIGGER button
for one second or more in %Duty function for advanced applications.
Trigger level defaults at 3. Press the Level (RANGE) button momentarily to select another trigger
level. If the
DWELL or %Duty reading becomes unstable, select lower sensitivity to avoid
electrical noise. If the reading shows zero, select higher sensitivity. Number of Bar-graph pointer is
used to indicate sensitivity selected.
ms FUEL INJECTION DETECTOR function
Summary of Contents for Elma 319s
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