Brymen TopTronic TBM315 User Manual page 8

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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
Trigger level defaults at 3. Press the Level (RANGE) button momentarily to select another trigger
level. If the RPM 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.
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.