Elma 319
side 46
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.
Summary of Contents for BM319
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